Introduction: The minimal clinically important difference (MCID), patient-acceptable symptom state (PASS), and substantial clinical benefit (SCB) are designed to prioritise clinically significant outcomes that demonstrate true clinical benefit rather than relying solely on statistical significance. These instruments aid clinicians in understanding the patient's perspective, allowing healthcare professionals to set treatment goals that align with patients' desires and expectations. This systematic review analysed tools to estimate the clinical relevance of the most commonly used PROMs to assess patients following surgical knee ligament reconstruction.
Methods: This study was conducted according to the 2020 PRISMA statement. In January 2024, the following databases were accessed: PubMed, Web of Science, and Embase. No time constraint was set for the search. All the clinical studies investigating tools to assess the clinical relevance of PROMs in knee ligament surgery were accessed. Only studies which evaluated the MCID, PASS, and SCB were eligible. The PROMs of interest were: International Knee Document Committee (IKDC), Knee Injury and Osteoarthritis Outcome Score (KOOS) and its related subscales activity of day living (ADL), pain, quality of life (QoL), sport and recreational, and symptoms (Roos et al. in J Orthop Sports Phys Ther 28:88-96, 1998), Lysholm knee scoring scale, Short Form 12 (SF-12) and its related mental and physical component subscales, Tegner Activity Scale.
Results: Seven non-RCT investigations, three with a prospective and four with a retrospective study design, were selected for inclusion in the present review, including 1,414 patients. The overall risk of bias was low to moderate in 71.4% (5 of 7) and serious in 28.6% (2 of 7) of the studies assessed in the present investigation, indicating a broadly acceptable methodological quality. The IKDC reported an MCID of 13.8/100, the KOOS 8.0/100, the Lysholm 9.9/100, and the Tegner Activity Scale 0.5/10.
Conclusion: This systematic review demonstrated that more dependable scientific data, appropriate study methodology, and adequate reporting of MCID, SCB, and PASS in surgical knee ligament reconstruction is necessary. The IKDC score, the Lysholm score, and the Tegner activity scale were the only instruments with multiple studies reporting values. Level of evidence Level IV, systematic review and meta-analysis.
{"title":"Minimal clinically important difference (MCID), patient-acceptable symptom state (PASS), and substantial clinical benefit (SCB) following surgical knee ligament reconstruction: a systematic review.","authors":"Filippo Migliorini, Nicola Maffulli, Madhan Jeyaraman, Luise Schäfer, Björn Rath, Thorsten Huber","doi":"10.1007/s00068-024-02708-3","DOIUrl":"https://doi.org/10.1007/s00068-024-02708-3","url":null,"abstract":"<p><strong>Introduction: </strong>The minimal clinically important difference (MCID), patient-acceptable symptom state (PASS), and substantial clinical benefit (SCB) are designed to prioritise clinically significant outcomes that demonstrate true clinical benefit rather than relying solely on statistical significance. These instruments aid clinicians in understanding the patient's perspective, allowing healthcare professionals to set treatment goals that align with patients' desires and expectations. This systematic review analysed tools to estimate the clinical relevance of the most commonly used PROMs to assess patients following surgical knee ligament reconstruction.</p><p><strong>Methods: </strong>This study was conducted according to the 2020 PRISMA statement. In January 2024, the following databases were accessed: PubMed, Web of Science, and Embase. No time constraint was set for the search. All the clinical studies investigating tools to assess the clinical relevance of PROMs in knee ligament surgery were accessed. Only studies which evaluated the MCID, PASS, and SCB were eligible. The PROMs of interest were: International Knee Document Committee (IKDC), Knee Injury and Osteoarthritis Outcome Score (KOOS) and its related subscales activity of day living (ADL), pain, quality of life (QoL), sport and recreational, and symptoms (Roos et al. in J Orthop Sports Phys Ther 28:88-96, 1998), Lysholm knee scoring scale, Short Form 12 (SF-12) and its related mental and physical component subscales, Tegner Activity Scale.</p><p><strong>Results: </strong>Seven non-RCT investigations, three with a prospective and four with a retrospective study design, were selected for inclusion in the present review, including 1,414 patients. The overall risk of bias was low to moderate in 71.4% (5 of 7) and serious in 28.6% (2 of 7) of the studies assessed in the present investigation, indicating a broadly acceptable methodological quality. The IKDC reported an MCID of 13.8/100, the KOOS 8.0/100, the Lysholm 9.9/100, and the Tegner Activity Scale 0.5/10.</p><p><strong>Conclusion: </strong>This systematic review demonstrated that more dependable scientific data, appropriate study methodology, and adequate reporting of MCID, SCB, and PASS in surgical knee ligament reconstruction is necessary. The IKDC score, the Lysholm score, and the Tegner activity scale were the only instruments with multiple studies reporting values. Level of evidence Level IV, systematic review and meta-analysis.</p>","PeriodicalId":12064,"journal":{"name":"European Journal of Trauma and Emergency Surgery","volume":"51 1","pages":"32"},"PeriodicalIF":1.9,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143022563","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-01-21DOI: 10.1007/s00068-024-02675-9
Kurnoth Anna, Timon Röttinger, Leonhard Lisitano, Nora Koenemann, Stefan Förch, Edgar Mayr, Annabel Fenwick
Purpose: Tranexamic acid is widely accepted for hip fractures but there is no agreement about dose or application method and the use is still off label for hip fractures. The aim of our study was to find the best application method of tranexamic acid in patients with femoral neck fractures comparing total blood loss, hemoglobin and transfusion rate.
Methods: A retrospective single centre cohort study (level I trauma centre) with 2008 patients treated operatively for a proximal femur fracture between January 2016 and January 2022 was performed. 1 g of tranexamic acid was applied in 314 cases (systemic, topic or combined application) if patients consented. Patient data, surgical procedure, complications, and mortality were assessed. Haemoglobin levels, blood loss and transfusion rates were compared amongst application methods.
Results: For 884 femoral neck fractures treated with arthroplasty blood loss was significantly reduced by tranexamic acid which 314 had received in total (1151.0 ml vs 738.28 ml; p < 0.001). 151 patients received 1 g of tranexamic acid systemically which reduced blood loss from 1151 to 943.25 ml. Combined application of 1 g i.v. and 1 g topically reduced blood loss even further to 869.79 ml and topical application achieved the lowest total blood loss at 391.59 ml (average reduction of 759.41 ml compared to without tranexamic acid), p < 0.001. Transfusion rate and amount of RBC units transfused were the lowest for topical use and showed the highest hemoglobin levels postoperatively. Complication rates did not differ for adverse vascular events.
Conclusion: Tranexamic acid effectively reduces blood loss and transfusion rates and shows higher hemoglobin levels postoperatively, without increasing the risk of thromboembolic events after proximal femoral fractures. Single topic application of 1 g for arthroplasty treatment of femoral neck fractures has better results for blood loss reduction than single i.v. or combined application.
目的:氨甲环酸被广泛接受用于髋部骨折,但对剂量或应用方法尚无一致意见,髋部骨折的使用仍未达到标签要求。本研究的目的是比较氨甲环酸在股骨颈骨折患者的总失血量、血红蛋白和输血率,寻找氨甲环酸在股骨颈骨折患者中的最佳应用方法。方法:对2016年1月至2022年1月期间接受手术治疗的2008例股骨近端骨折患者进行回顾性单中心队列研究(一级创伤中心)。在314例患者同意的情况下,应用1g氨甲环酸(全身、局部或联合应用)。评估患者资料、手术过程、并发症和死亡率。血红蛋白水平、失血量和输血率在不同应用方法之间的比较。结果:884例经关节置换术治疗的股骨颈骨折中,氨甲环酸可显著减少失血量,其中314例(1151.0 ml vs 738.28 ml);结论:氨甲环酸可有效降低失血量和输血率,术后血红蛋白水平升高,且不会增加股骨近端骨折后血栓栓塞事件的风险。股骨颈骨折关节置换术中单部位应用1g比单次静脉滴注或联合应用减少失血量效果更好。
{"title":"Tranexamic acid: single topical application for femoral neck fractures treated with arthroplasty results in lowest blood loss.","authors":"Kurnoth Anna, Timon Röttinger, Leonhard Lisitano, Nora Koenemann, Stefan Förch, Edgar Mayr, Annabel Fenwick","doi":"10.1007/s00068-024-02675-9","DOIUrl":"10.1007/s00068-024-02675-9","url":null,"abstract":"<p><strong>Purpose: </strong>Tranexamic acid is widely accepted for hip fractures but there is no agreement about dose or application method and the use is still off label for hip fractures. The aim of our study was to find the best application method of tranexamic acid in patients with femoral neck fractures comparing total blood loss, hemoglobin and transfusion rate.</p><p><strong>Methods: </strong>A retrospective single centre cohort study (level I trauma centre) with 2008 patients treated operatively for a proximal femur fracture between January 2016 and January 2022 was performed. 1 g of tranexamic acid was applied in 314 cases (systemic, topic or combined application) if patients consented. Patient data, surgical procedure, complications, and mortality were assessed. Haemoglobin levels, blood loss and transfusion rates were compared amongst application methods.</p><p><strong>Results: </strong>For 884 femoral neck fractures treated with arthroplasty blood loss was significantly reduced by tranexamic acid which 314 had received in total (1151.0 ml vs 738.28 ml; p < 0.001). 151 patients received 1 g of tranexamic acid systemically which reduced blood loss from 1151 to 943.25 ml. Combined application of 1 g i.v. and 1 g topically reduced blood loss even further to 869.79 ml and topical application achieved the lowest total blood loss at 391.59 ml (average reduction of 759.41 ml compared to without tranexamic acid), p < 0.001. Transfusion rate and amount of RBC units transfused were the lowest for topical use and showed the highest hemoglobin levels postoperatively. Complication rates did not differ for adverse vascular events.</p><p><strong>Conclusion: </strong>Tranexamic acid effectively reduces blood loss and transfusion rates and shows higher hemoglobin levels postoperatively, without increasing the risk of thromboembolic events after proximal femoral fractures. Single topic application of 1 g for arthroplasty treatment of femoral neck fractures has better results for blood loss reduction than single i.v. or combined application.</p>","PeriodicalId":12064,"journal":{"name":"European Journal of Trauma and Emergency Surgery","volume":"51 1","pages":"31"},"PeriodicalIF":1.9,"publicationDate":"2025-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11750898/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143002768","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-01-21DOI: 10.1007/s00068-024-02725-2
Mubarak Algahtany, Amit Kumar, Malik Algahtany, Maan Alqahtani, Musaab Alnaami, Aws Algahtany, Majed Aldehri, Ibrahim Alnaami
Background: Traumatic brain injury (TBI) is considered a major cause of death globally, resulting from trauma. Decompressive craniectomy (DC) may improve functional outcomes in patients with TBI and its associated complications. This study was designed to determine safety and efficacy of DC in improving clinical outcomes in TBI patients compared to standard therapy.
Methods: A systematic search was conducted across six electronic databases to identify relevant randomized controlled trials (RCTs) examining decompressive craniotomy (DC) and traumatic brain injury (TBI) from database inception until March 2021. The pooled risk ratio was estimated for categorical outcomes, while the pooled standardized mean difference with a 95% confidence interval was calculated for continuous outcomes. Statistical analysis software, including RevMan 5.4 and STATA version 17, was employed to perform this meta-analysis. The protocol for this study is registered with the OSF registry, ensuring transparency and reproducibility.
Results: A total of 656 studies were screened, and five RCTs involving 665 subjects (334 in the DC group and 331 in the control group) were included in this meta-analysis. Our meta-analysis revealed a non-significant trend towards a higher rate of favorable clinical outcomes in subjects who underwent DC compared to those in the medical treatment (MT) group (risk ratio (RR) 1.20, 95% confidence interval (CI) 0.70 to 2.08, P = 0.50). In contrast, the mortality rate was significantly lower in patients treated with DC compared to those receiving MT alone (RR 0.58, 95% CI 0.47 to 0.73, P < 0.001). Additionally, intracranial pressure (ICP) levels were significantly lower in subjects who underwent DC compared to those receiving MT alone (standardized mean difference (SMD): - 0.87, 95% CI - 1.58 to - 0.16, P = 0.02). Furthermore, there was a statistically significant reduction in the duration of stay in the DC group compared to the MT alone group (SMD: - 1.18, 95% CI - 1.49 to - 0.86, P < 0.001).
Conclusion: This study presents evidence suggesting that DC is linked to a lower mortality rate, decreased ICP, and shorter hospital stays among patients with moderate to severe TBI. However, it did not show a significant impact on improving favorable clinical outcomes.
背景:创伤性脑损伤(TBI)被认为是全球范围内由创伤引起的主要死亡原因。减压颅骨切除术(DC)可能改善TBI患者及其相关并发症的功能结局。本研究旨在确定与标准治疗相比,DC在改善TBI患者临床结果方面的安全性和有效性。方法:对6个电子数据库进行系统检索,以确定从数据库建立到2021年3月期间检查减压开颅术(DC)和创伤性脑损伤(TBI)的相关随机对照试验(rct)。对分类结果估计合并风险比,对连续结果计算95%置信区间的合并标准化平均差。采用统计分析软件RevMan 5.4和STATA version 17进行meta分析。本研究的方案已在OSF注册中心注册,以确保透明度和可重复性。结果:共筛选656项研究,共纳入5项rct,涉及665名受试者(DC组334名,对照组331名)。我们的荟萃分析显示,与医学治疗(MT)组相比,接受DC治疗的受试者的良好临床转归率呈非显著性趋势(风险比(RR) 1.20, 95%可信区间(CI) 0.70至2.08,P = 0.50)。相比之下,与单独接受MT治疗的患者相比,接受DC治疗的患者死亡率显著降低(RR 0.58, 95% CI 0.47至0.73,P)。结论:本研究提供的证据表明,在中重度TBI患者中,DC与较低的死亡率、较低的ICP和较短的住院时间有关。然而,它对改善有利的临床结果没有显着影响。
{"title":"Surgical intervention in traumatic brain injury: a systematic review and meta-analysis of decompressive craniotomy.","authors":"Mubarak Algahtany, Amit Kumar, Malik Algahtany, Maan Alqahtani, Musaab Alnaami, Aws Algahtany, Majed Aldehri, Ibrahim Alnaami","doi":"10.1007/s00068-024-02725-2","DOIUrl":"https://doi.org/10.1007/s00068-024-02725-2","url":null,"abstract":"<p><strong>Background: </strong>Traumatic brain injury (TBI) is considered a major cause of death globally, resulting from trauma. Decompressive craniectomy (DC) may improve functional outcomes in patients with TBI and its associated complications. This study was designed to determine safety and efficacy of DC in improving clinical outcomes in TBI patients compared to standard therapy.</p><p><strong>Methods: </strong>A systematic search was conducted across six electronic databases to identify relevant randomized controlled trials (RCTs) examining decompressive craniotomy (DC) and traumatic brain injury (TBI) from database inception until March 2021. The pooled risk ratio was estimated for categorical outcomes, while the pooled standardized mean difference with a 95% confidence interval was calculated for continuous outcomes. Statistical analysis software, including RevMan 5.4 and STATA version 17, was employed to perform this meta-analysis. The protocol for this study is registered with the OSF registry, ensuring transparency and reproducibility.</p><p><strong>Results: </strong>A total of 656 studies were screened, and five RCTs involving 665 subjects (334 in the DC group and 331 in the control group) were included in this meta-analysis. Our meta-analysis revealed a non-significant trend towards a higher rate of favorable clinical outcomes in subjects who underwent DC compared to those in the medical treatment (MT) group (risk ratio (RR) 1.20, 95% confidence interval (CI) 0.70 to 2.08, P = 0.50). In contrast, the mortality rate was significantly lower in patients treated with DC compared to those receiving MT alone (RR 0.58, 95% CI 0.47 to 0.73, P < 0.001). Additionally, intracranial pressure (ICP) levels were significantly lower in subjects who underwent DC compared to those receiving MT alone (standardized mean difference (SMD): - 0.87, 95% CI - 1.58 to - 0.16, P = 0.02). Furthermore, there was a statistically significant reduction in the duration of stay in the DC group compared to the MT alone group (SMD: - 1.18, 95% CI - 1.49 to - 0.86, P < 0.001).</p><p><strong>Conclusion: </strong>This study presents evidence suggesting that DC is linked to a lower mortality rate, decreased ICP, and shorter hospital stays among patients with moderate to severe TBI. However, it did not show a significant impact on improving favorable clinical outcomes.</p>","PeriodicalId":12064,"journal":{"name":"European Journal of Trauma and Emergency Surgery","volume":"51 1","pages":"30"},"PeriodicalIF":1.9,"publicationDate":"2025-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143002767","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-01-20DOI: 10.1007/s00068-024-02728-z
Taina Mueller, Barbara Weiß, Thomas Wirth, Francisco F Fernandez
<p><strong>Background: </strong>Pediatric femoral neck fractures (PFNF) are rare but associated with a high rate of serious complications such as avascular femoral head necrosis (AVN). Major risk factors and prognostic tools for an AVN are still unclear. As AVN is a devastating complication, this study aims to evaluate the predictors for AVN following a PFNF.</p><p><strong>Material and methods: </strong>All patients that suffered a PFNF or an AVN following a PFNF in the last 15 years that were treated at a university-level hospital with a minimum of 12 months follow-up were included in this retrospective study. Patients with a pathological fracture or closed epiphysis were excluded. Radiological outcome was evaluated based on Ratcliff criteria. The association of possible risk factors such as age, gender, traumatic mechanism, fracture type, degree of dislocation, time to surgery or type of surgical intervention with AVN was analyzed. Since not all fractures could be assigned to an exact fracture type, a new fracture type was included in the subgroup analyses.</p><p><strong>Results: </strong>We included 37 patients in the study population. The mean age at the time of the diagnosis was 11.5 years (ranging 5-16 years). Mean follow-up was 30 months. 75% of the cases were diagnosed on the day of the trauma. Nine patients had a delayed diagnosis of which eight had a previous neurological disease (eg. cerebral palsy). A previous illness was significantly associated with a late diagnosis (p < 0.001). 17 patients suffered a high velocity trauma. 35 patients were treated operatively, the majority with a closed reduction (81%) and an internal fixation with cannulated screws (75%). In 24 patients (65%) an additional puncture of the hip joint was performed. Ten patients developed AVN, two of them ultimately had to be treated with a total hip arthroplasty. Female gender was associated with AVN, though not significantly (p = 0.051). A Delbet type IV injury and a high velocity trauma were significantly associated with an AVN (p = 0.020, p = 0.030 respectively). A type IIR fracture was significantly more likely to develop AVN compared to a Delbet type II fracture. Age, polytrauma, degree of dislocation, time to diagnosis, time to surgery and type of treatment was found were not significantly associated with AVN.</p><p><strong>Conclusion: </strong>Neurologically impaired patients are prone to a late diagnosis of a femoral neck fracture, mainly due to both cognitive and motor impairments. High velocity trauma is a significant risk factor for developing AVN. In contrast to literature, a Delbet type IV fracture was significantly associated with AVN. A type IIR fracture has a higher possibility to develop AVN than a normal Delbet type II fracture. As the incidence of pediatric femoral neck fractures is low, the size of a study population is limited. Nevertheless, AVN is still a life altering complication leading to additional surgical treatments, hospital stays and im
{"title":"Risk factors of avascular femoral head necrosis after a pediatric femoral neck fracture: a 15-year follow up and an adjustment to the Delbet classification.","authors":"Taina Mueller, Barbara Weiß, Thomas Wirth, Francisco F Fernandez","doi":"10.1007/s00068-024-02728-z","DOIUrl":"https://doi.org/10.1007/s00068-024-02728-z","url":null,"abstract":"<p><strong>Background: </strong>Pediatric femoral neck fractures (PFNF) are rare but associated with a high rate of serious complications such as avascular femoral head necrosis (AVN). Major risk factors and prognostic tools for an AVN are still unclear. As AVN is a devastating complication, this study aims to evaluate the predictors for AVN following a PFNF.</p><p><strong>Material and methods: </strong>All patients that suffered a PFNF or an AVN following a PFNF in the last 15 years that were treated at a university-level hospital with a minimum of 12 months follow-up were included in this retrospective study. Patients with a pathological fracture or closed epiphysis were excluded. Radiological outcome was evaluated based on Ratcliff criteria. The association of possible risk factors such as age, gender, traumatic mechanism, fracture type, degree of dislocation, time to surgery or type of surgical intervention with AVN was analyzed. Since not all fractures could be assigned to an exact fracture type, a new fracture type was included in the subgroup analyses.</p><p><strong>Results: </strong>We included 37 patients in the study population. The mean age at the time of the diagnosis was 11.5 years (ranging 5-16 years). Mean follow-up was 30 months. 75% of the cases were diagnosed on the day of the trauma. Nine patients had a delayed diagnosis of which eight had a previous neurological disease (eg. cerebral palsy). A previous illness was significantly associated with a late diagnosis (p < 0.001). 17 patients suffered a high velocity trauma. 35 patients were treated operatively, the majority with a closed reduction (81%) and an internal fixation with cannulated screws (75%). In 24 patients (65%) an additional puncture of the hip joint was performed. Ten patients developed AVN, two of them ultimately had to be treated with a total hip arthroplasty. Female gender was associated with AVN, though not significantly (p = 0.051). A Delbet type IV injury and a high velocity trauma were significantly associated with an AVN (p = 0.020, p = 0.030 respectively). A type IIR fracture was significantly more likely to develop AVN compared to a Delbet type II fracture. Age, polytrauma, degree of dislocation, time to diagnosis, time to surgery and type of treatment was found were not significantly associated with AVN.</p><p><strong>Conclusion: </strong>Neurologically impaired patients are prone to a late diagnosis of a femoral neck fracture, mainly due to both cognitive and motor impairments. High velocity trauma is a significant risk factor for developing AVN. In contrast to literature, a Delbet type IV fracture was significantly associated with AVN. A type IIR fracture has a higher possibility to develop AVN than a normal Delbet type II fracture. As the incidence of pediatric femoral neck fractures is low, the size of a study population is limited. Nevertheless, AVN is still a life altering complication leading to additional surgical treatments, hospital stays and im","PeriodicalId":12064,"journal":{"name":"European Journal of Trauma and Emergency Surgery","volume":"51 1","pages":"28"},"PeriodicalIF":1.9,"publicationDate":"2025-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143002764","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-01-20DOI: 10.1007/s00068-024-02724-3
Johannes Gleich, Evi Fleischhacker, Christopher Lampert, Georg Siebenbürger, Ben Ockert, Wolfgang Böcker, Tobias Helfen
Purpose: If surgery is indicated for elderly patients suffering a proximal humerus fracture, reverse fracture arthroplasty became the preferred type of treatment due to its good and reliable outcomes over the last decade. Surgeons could choose from a wide range of implants and up to now there was no evaluation, if a change of the manufacturer affects patients` outcome.
Methods: The last 100 patients before and the first 100 after manufacturer change in reverse fracture arthroplasty were evaluated at a level one trauma center, all treated by only 3 senior shoulder surgeons. Clinical as well as radiographic outcome parameters were assessed, perioperative up to 24 months after surgery.
Results: Mean age in both groups was nearly 80 years with comparable distribution of gender and comorbidities. A trend to shorter duration of surgery was observed after the change, mainly according to an uncemented fixation of the stem. During follow-up no significant differences, beneficial as well as negative, could be observed regarding clinical and radiographic outcome.
Conclusion: A manufacturer change on the fly is possible without negative consequences for patients` outcome. Expertise of the whole OR-team as well as standardized training with the new implant seems to be a more important factor than a specific type of implant.
{"title":"From the last 100 to the first 100-outcome after a manufacturer change in reverse fracture arthroplasty.","authors":"Johannes Gleich, Evi Fleischhacker, Christopher Lampert, Georg Siebenbürger, Ben Ockert, Wolfgang Böcker, Tobias Helfen","doi":"10.1007/s00068-024-02724-3","DOIUrl":"10.1007/s00068-024-02724-3","url":null,"abstract":"<p><strong>Purpose: </strong>If surgery is indicated for elderly patients suffering a proximal humerus fracture, reverse fracture arthroplasty became the preferred type of treatment due to its good and reliable outcomes over the last decade. Surgeons could choose from a wide range of implants and up to now there was no evaluation, if a change of the manufacturer affects patients` outcome.</p><p><strong>Methods: </strong>The last 100 patients before and the first 100 after manufacturer change in reverse fracture arthroplasty were evaluated at a level one trauma center, all treated by only 3 senior shoulder surgeons. Clinical as well as radiographic outcome parameters were assessed, perioperative up to 24 months after surgery.</p><p><strong>Results: </strong>Mean age in both groups was nearly 80 years with comparable distribution of gender and comorbidities. A trend to shorter duration of surgery was observed after the change, mainly according to an uncemented fixation of the stem. During follow-up no significant differences, beneficial as well as negative, could be observed regarding clinical and radiographic outcome.</p><p><strong>Conclusion: </strong>A manufacturer change on the fly is possible without negative consequences for patients` outcome. Expertise of the whole OR-team as well as standardized training with the new implant seems to be a more important factor than a specific type of implant.</p>","PeriodicalId":12064,"journal":{"name":"European Journal of Trauma and Emergency Surgery","volume":"51 1","pages":"29"},"PeriodicalIF":1.9,"publicationDate":"2025-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11753307/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143002756","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-01-19DOI: 10.1007/s00068-024-02762-x
Eva Steinfeld, Klemens Horst, Kelly Ansems, Karolina Dahms, Julia Dormann, Heidrun Janka, Maria Inti-Metzendorf, Carina Benstoem, Frank Hildebrand, Nils Becker
Purpose: In polytrauma patients, injuries involving the extremities are frequently seen. Treatment concepts vary from early definitive care to temporary fixation and delayed definite stabilization. This analysis therefor aims to illuminate the impact of timing for operative stabilization of extremity fractures on outcome factors in adult polytrauma patients.
Methods: We searched PubMed and Cochrane CENTRAL to identify studies from inception of each database to 14 September 2022. We included systematic reviews and RCTs comparing immediate versus delayed operative fracture stabilization and early definite care versus primary external fixation in adult polytrauma patients.
Results: Five randomized controlled trials were included, with a total of 335 patients. The analysis found no statistically significant difference in overall mortality or improvement in ICU admission between early (< 24 h) and late fracture stabilization. Comparing femoral nailing and external fixation, findings showed that femoral nailing reduce ICU length of stay and duration of invasive mechanical ventilation.
Conclusion: The results indicate that immediate surgical treatment by nailing is superior to delayed treatment or a staged surgical approach in stable polytrauma patients with long-bone fractures. As there is a lack of clear evidence regarding the optimal timing for definitive operative stabilization of extremity fractures in polytrauma patients, further high-quality studies are essential to enhance the certainty of evidence and provide more conclusive treatment algorithms.
{"title":"Optimal timing of stabilization and operative technique for extremity fractures in polytrauma patients: a systematic review and meta-analysis.","authors":"Eva Steinfeld, Klemens Horst, Kelly Ansems, Karolina Dahms, Julia Dormann, Heidrun Janka, Maria Inti-Metzendorf, Carina Benstoem, Frank Hildebrand, Nils Becker","doi":"10.1007/s00068-024-02762-x","DOIUrl":"10.1007/s00068-024-02762-x","url":null,"abstract":"<p><strong>Purpose: </strong>In polytrauma patients, injuries involving the extremities are frequently seen. Treatment concepts vary from early definitive care to temporary fixation and delayed definite stabilization. This analysis therefor aims to illuminate the impact of timing for operative stabilization of extremity fractures on outcome factors in adult polytrauma patients.</p><p><strong>Methods: </strong>We searched PubMed and Cochrane CENTRAL to identify studies from inception of each database to 14 September 2022. We included systematic reviews and RCTs comparing immediate versus delayed operative fracture stabilization and early definite care versus primary external fixation in adult polytrauma patients.</p><p><strong>Results: </strong>Five randomized controlled trials were included, with a total of 335 patients. The analysis found no statistically significant difference in overall mortality or improvement in ICU admission between early (< 24 h) and late fracture stabilization. Comparing femoral nailing and external fixation, findings showed that femoral nailing reduce ICU length of stay and duration of invasive mechanical ventilation.</p><p><strong>Conclusion: </strong>The results indicate that immediate surgical treatment by nailing is superior to delayed treatment or a staged surgical approach in stable polytrauma patients with long-bone fractures. As there is a lack of clear evidence regarding the optimal timing for definitive operative stabilization of extremity fractures in polytrauma patients, further high-quality studies are essential to enhance the certainty of evidence and provide more conclusive treatment algorithms.</p>","PeriodicalId":12064,"journal":{"name":"European Journal of Trauma and Emergency Surgery","volume":"51 1","pages":"27"},"PeriodicalIF":1.9,"publicationDate":"2025-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11742870/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143002761","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-01-17DOI: 10.1007/s00068-024-02737-y
Ana Rodríguez Álvarez, José López-Castro, Javier Cambón Cotelo, Victor Quevedo Vila, Álvaro Marchán-López
Background: Hip fractures represent a serious public health problem with a high burden of mortality, morbidity, and resource use. Co-management has proven to enhance the clinical outcomes of hip fracture patients hospitalized in various settings.
Aim: This study aims to evaluate whether the previously observed benefits of co-management can be achieved when such a program is implemented in a rural-based district hospital.
Methods: A prospective, single-center observational study was conducted on hip fracture patients hospitalized for hip fracture. Patients were either co-managed by an internal medicine specialist with part-time dedication or not co-managed. The study was conducted in a rural hospital located in Galicia, Northwestern Spain, which serves a population of 45,000.
Results: A total of 207 patients were included in the study, of whom 97 received co-management. The majority of the patients who were co-managed were female (69.1%) and had a median age of 88 years (interquartile range 83-92). The study showed a high burden of comorbidity with a median Charlson index of 6 points, along with high prevalence rates of dementia (46%), functional disability (50%), and chronic anticoagulant therapy (25%). Despite no differences in age, sex, or preadmission cognitive or functional status, the study found lower 30-day postdischarge mortality in co-managed patients (9.3%) compared with the 110 controls (20.0%, p = 0.049). The prevalence of osteoporosis treatment, both calcium/vitamin D (87.8% vs. 60.7%, p < 0.001) and bisphosphonates/denosumab/teriparatide (42.4% vs. 15.7%, p < 0.001), was higher in the co-managed patients at 30 days after discharge. No differences were observed between the two groups in terms of in-hospital mortality and length of stay.
Conclusions: The implementation of internal medicine co-management for hip fracture patients resulted in enhanced outcomes, particularly in the reduction of mortality within 30 days of discharge as well as in the prevalence of osteoporosis treatment.
背景:髋部骨折是一个严重的公共卫生问题,具有很高的死亡率、发病率和资源使用负担。共同管理已被证明可以提高髋部骨折患者在各种情况下住院的临床结果。目的:本研究旨在评估在农村地区医院实施共同管理方案时,是否可以实现先前观察到的效益。方法:对髋部骨折住院患者进行前瞻性、单中心观察性研究。患者要么由兼职的内科专家共同管理,要么不共同管理。这项研究是在西班牙西北部加利西亚的一家乡村医院进行的,该医院为4.5万人口提供服务。结果:共纳入207例患者,其中97例接受联合治疗。大多数接受联合治疗的患者为女性(69.1%),中位年龄为88岁(四分位数范围83-92岁)。该研究显示,伴随痴呆(46%)、功能性残疾(50%)和慢性抗凝治疗(25%)的高患病率,共病负担高,Charlson指数中位数为6分。尽管年龄、性别或入院前认知或功能状态没有差异,但研究发现,与110名对照组(20.0%,p = 0.049)相比,联合管理的患者出院后30天死亡率(9.3%)较低。骨质疏松治疗的患病率,钙/维生素D (87.8% vs. 60.7%, p)结论:对髋部骨折患者实施内科联合管理可提高预后,特别是在出院后30天内死亡率的降低以及骨质疏松治疗的患病率方面。
{"title":"Effectiveness of a co-management program with internal medicine on hip fracture patients at a regional hospital in northwest Spain. Co-inter-Monf study.","authors":"Ana Rodríguez Álvarez, José López-Castro, Javier Cambón Cotelo, Victor Quevedo Vila, Álvaro Marchán-López","doi":"10.1007/s00068-024-02737-y","DOIUrl":"https://doi.org/10.1007/s00068-024-02737-y","url":null,"abstract":"<p><strong>Background: </strong>Hip fractures represent a serious public health problem with a high burden of mortality, morbidity, and resource use. Co-management has proven to enhance the clinical outcomes of hip fracture patients hospitalized in various settings.</p><p><strong>Aim: </strong>This study aims to evaluate whether the previously observed benefits of co-management can be achieved when such a program is implemented in a rural-based district hospital.</p><p><strong>Methods: </strong>A prospective, single-center observational study was conducted on hip fracture patients hospitalized for hip fracture. Patients were either co-managed by an internal medicine specialist with part-time dedication or not co-managed. The study was conducted in a rural hospital located in Galicia, Northwestern Spain, which serves a population of 45,000.</p><p><strong>Results: </strong>A total of 207 patients were included in the study, of whom 97 received co-management. The majority of the patients who were co-managed were female (69.1%) and had a median age of 88 years (interquartile range 83-92). The study showed a high burden of comorbidity with a median Charlson index of 6 points, along with high prevalence rates of dementia (46%), functional disability (50%), and chronic anticoagulant therapy (25%). Despite no differences in age, sex, or preadmission cognitive or functional status, the study found lower 30-day postdischarge mortality in co-managed patients (9.3%) compared with the 110 controls (20.0%, p = 0.049). The prevalence of osteoporosis treatment, both calcium/vitamin D (87.8% vs. 60.7%, p < 0.001) and bisphosphonates/denosumab/teriparatide (42.4% vs. 15.7%, p < 0.001), was higher in the co-managed patients at 30 days after discharge. No differences were observed between the two groups in terms of in-hospital mortality and length of stay.</p><p><strong>Conclusions: </strong>The implementation of internal medicine co-management for hip fracture patients resulted in enhanced outcomes, particularly in the reduction of mortality within 30 days of discharge as well as in the prevalence of osteoporosis treatment.</p>","PeriodicalId":12064,"journal":{"name":"European Journal of Trauma and Emergency Surgery","volume":"51 1","pages":"23"},"PeriodicalIF":1.9,"publicationDate":"2025-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143002753","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-01-17DOI: 10.1007/s00068-024-02748-9
Stefano Piero Bernardo Cioffi, Andrea Spota, Francesco Virdis, Michele Altomare, Andrea Mingoli, Stefania Cimbanassi, Francesca Laura Nava, Silvana Nardi, Marcello Di Martino, Salomone Di Saverio, Benedetto Ielpo, Francesco Pata, Gianluca Pellino, Massimo Sartelli, Dimitris Damaskos, Federico Coccolini, Adolfo Pisanu, Fausto Catena, Mauro Podda
Background: The current standard of care for mild acute biliary pancreatitis (MABP) involves early laparoscopic cholecystectomy (ELC) to reduce the risk of recurrence. The MANCTRA-1 project revealed a knowledge-to-action gap and higher recurrence rates in patients admitted to medical wards, attributable to fewer ELCs being performed. The project estimated a 35% to 70% probability of narrowing this gap by 2025. This study evaluates the safety of suboptimal ELC implementation and identifies risk factors for recurrent acute biliary pancreatitis (RAP) in patients not undergoing ELC after an MABP episode.
Methods: We conducted a post-hoc analysis of the MANCTRA-1 registry, including MABP patients who did not undergo ELC during the index hospitalization, excluding those with related complications. The primary outcome was the 30-day hospital readmission rate due to RAP. We performed multivariable logistic regression to find risk factors associated with the primary outcome.
Results: Between January 2019 and December 2020, 1920, MABP patients from 150 centers were included in the study. The 30-day readmission rate due to RAP was 6%. Multivariable logistic regression found the admission to a medical ward (internal medicine or gastroenterology) (OR = 1.95, p = 0.001) and a positive COVID-19 test (OR = 3.08, p = 0.029) as independent risk factors for RAP.
Conclusion: Our analysis offers valuable insights into the management of MABP, particularly in centers where ELC cannot be fully implemented due to logistical and clinical constraints, worsened by the COVID-19 pandemic. Regardless of the admitting ward, prompt access to surgical care is crucial in reducing the risk of early recurrence, highlighting the need to implement surgical consultation pathways within MABP care bundles.
背景:目前轻度急性胆源性胰腺炎(MABP)的标准治疗包括早期腹腔镜胆囊切除术(ELC)以降低复发风险。mancta -1项目揭示了在住院患者中存在从知识到行动的差距和较高的复发率,这是由于进行ELCs的患者较少。该项目估计,到2025年缩小这一差距的可能性为35%至70%。本研究评估了次优ELC实施的安全性,并确定了MABP发作后未接受ELC的患者复发急性胆源性胰腺炎(RAP)的危险因素。方法:我们对mancta -1登记进行了事后分析,包括在指数住院期间未接受ELC的MABP患者,排除了相关并发症。主要观察指标是RAP引起的30天住院再入院率。我们采用多变量逻辑回归来寻找与主要结局相关的危险因素。结果:在2019年1月至2020年12月期间,来自150个中心的MABP患者被纳入研究。RAP导致的30天再入院率为6%。多变量logistic回归发现住院(内科或胃肠内科)(or = 1.95, p = 0.001)和COVID-19检测阳性(or = 3.08, p = 0.029)是RAP的独立危险因素。结论:我们的分析为MABP的管理提供了有价值的见解,特别是在由于后勤和临床限制而无法完全实施ELC的中心,并且由于COVID-19大流行而恶化。无论在哪个病房,及时获得外科治疗对于降低早期复发的风险至关重要,这突出了在MABP护理包中实施外科咨询途径的必要性。
{"title":"Mild acute biliary pancreatitis: still a surgical disease. A post-hoc analysis of the MANCTRA-1 international study.","authors":"Stefano Piero Bernardo Cioffi, Andrea Spota, Francesco Virdis, Michele Altomare, Andrea Mingoli, Stefania Cimbanassi, Francesca Laura Nava, Silvana Nardi, Marcello Di Martino, Salomone Di Saverio, Benedetto Ielpo, Francesco Pata, Gianluca Pellino, Massimo Sartelli, Dimitris Damaskos, Federico Coccolini, Adolfo Pisanu, Fausto Catena, Mauro Podda","doi":"10.1007/s00068-024-02748-9","DOIUrl":"10.1007/s00068-024-02748-9","url":null,"abstract":"<p><strong>Background: </strong>The current standard of care for mild acute biliary pancreatitis (MABP) involves early laparoscopic cholecystectomy (ELC) to reduce the risk of recurrence. The MANCTRA-1 project revealed a knowledge-to-action gap and higher recurrence rates in patients admitted to medical wards, attributable to fewer ELCs being performed. The project estimated a 35% to 70% probability of narrowing this gap by 2025. This study evaluates the safety of suboptimal ELC implementation and identifies risk factors for recurrent acute biliary pancreatitis (RAP) in patients not undergoing ELC after an MABP episode.</p><p><strong>Methods: </strong>We conducted a post-hoc analysis of the MANCTRA-1 registry, including MABP patients who did not undergo ELC during the index hospitalization, excluding those with related complications. The primary outcome was the 30-day hospital readmission rate due to RAP. We performed multivariable logistic regression to find risk factors associated with the primary outcome.</p><p><strong>Results: </strong>Between January 2019 and December 2020, 1920, MABP patients from 150 centers were included in the study. The 30-day readmission rate due to RAP was 6%. Multivariable logistic regression found the admission to a medical ward (internal medicine or gastroenterology) (OR = 1.95, p = 0.001) and a positive COVID-19 test (OR = 3.08, p = 0.029) as independent risk factors for RAP.</p><p><strong>Conclusion: </strong>Our analysis offers valuable insights into the management of MABP, particularly in centers where ELC cannot be fully implemented due to logistical and clinical constraints, worsened by the COVID-19 pandemic. Regardless of the admitting ward, prompt access to surgical care is crucial in reducing the risk of early recurrence, highlighting the need to implement surgical consultation pathways within MABP care bundles.</p>","PeriodicalId":12064,"journal":{"name":"European Journal of Trauma and Emergency Surgery","volume":"51 1","pages":"24"},"PeriodicalIF":1.9,"publicationDate":"2025-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11742350/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143002758","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-01-17DOI: 10.1007/s00068-024-02754-x
Julian N Zierke, Georg N Duda, Karl F Braun, Vera Jaecker, Ulrich Stöckle, Philipp Damm, Mark Heyland, Marcel Niemann
Background: Flail chest (FC) injuries are segmental osseous injuries of the thorax that typically result from high-energy blunt trauma and regularly occur in multiple trauma (MT) patients. FC injuries are associated with paradoxical chest wall movements and, thus, have a high risk of respiratory insufficiency or even death. An increasing number of studies recommend an early surgical stabilization of FC injuries, but a definite trigger that would indicate surgery has, thus far, not been identified.
Methods: Based on real-world injury computed tomography (CT) data, this study aimed to establish a finite elements (FE) model of a thorax simulating spontaneous breathing. The model is based on a 0.625 mm slice thickness CT data set. In this FE model, various FC injury patterns were implemented to examine the impact of an increasingly large flail segment on tidal volume and respiratory work. The impact of the segmental defect sizes on the outcome measures mentioned above was examined using correlation analyses.
Results: The FE model in this study reliably simulated the spontaneous breathing patterns of an actively breathing patient in an uninjured setting as a reference and showed clinically realistic movements of the flail segments for various injury settings. Correlation analysis showed a significant negative correlation between the FC size and tidal volume (R2 = 0.852, p = 0.003), while absolute (R2 = 0.845, p = 0.0096) and relative loss (R2 = 0.844, p = 0.0096) of tidal volume concerning the intact model and the compensatory respiratory work required (R2 = 0.816, p = 0.0136) were positively correlated with FC size.
Conclusion: This study presents an FE model of the thorax of a patient who presented to our clinic as an MT patient with an FC injury. The FE model fulfills physiologic active breathing patterns and simulates an FC injury's paradoxical movement, realistically depicting clinical observations. The FE model showed that the number of consecutive ribs involved in the flail segment and the length of the flail segment significantly impacted active breathing concerning tidal volumes and respiratory work. With this, we have made the first step to define a trigger for surgery.
背景:连枷胸(FC)损伤是胸部的节段性骨损伤,通常由高能钝性创伤引起,通常发生在多发创伤(MT)患者中。FC损伤与矛盾的胸壁运动有关,因此,呼吸功能不全甚至死亡的风险很高。越来越多的研究建议对FC损伤进行早期手术稳定,但到目前为止,还没有确定一个明确的触发手术的因素。方法:基于真实损伤CT数据,建立模拟胸腔自主呼吸的有限元模型。该模型基于0.625 mm层厚CT数据集。在这个有限元模型中,我们采用了不同的FC损伤模式来检验连枷段越来越大对潮气量和呼吸功的影响。使用相关分析检查了上面提到的片段缺陷大小对结果度量的影响。结果:本研究的FE模型可靠地模拟了未受伤情况下主动呼吸患者的自主呼吸模式,作为参考,并显示了各种损伤情况下连枷节段的临床真实运动。相关分析显示,FC大小与潮气量呈显著负相关(R2 = 0.852, p = 0.003),而完整模型潮气量的绝对损失(R2 = 0.845, p = 0.0096)和所需代偿呼吸功的相对损失(R2 = 0.844, p = 0.0096)与FC大小呈正相关(R2 = 0.816, p = 0.0136)。结论:本研究提出了一个以FC损伤的MT患者的胸腔FE模型。FE模型实现了生理性的主动呼吸模式,模拟了FC损伤的矛盾运动,真实地描绘了临床观察结果。有限元模型显示,连枷段连续肋骨数和连枷段长度对潮气量和呼吸功的主动呼吸有显著影响。有了这个,我们已经迈出了确定手术触发因素的第一步。
{"title":"Biomechanics of flail chest injuries: tidal volume and respiratory work changes in multiple segmental rib fractures.","authors":"Julian N Zierke, Georg N Duda, Karl F Braun, Vera Jaecker, Ulrich Stöckle, Philipp Damm, Mark Heyland, Marcel Niemann","doi":"10.1007/s00068-024-02754-x","DOIUrl":"10.1007/s00068-024-02754-x","url":null,"abstract":"<p><strong>Background: </strong>Flail chest (FC) injuries are segmental osseous injuries of the thorax that typically result from high-energy blunt trauma and regularly occur in multiple trauma (MT) patients. FC injuries are associated with paradoxical chest wall movements and, thus, have a high risk of respiratory insufficiency or even death. An increasing number of studies recommend an early surgical stabilization of FC injuries, but a definite trigger that would indicate surgery has, thus far, not been identified.</p><p><strong>Methods: </strong>Based on real-world injury computed tomography (CT) data, this study aimed to establish a finite elements (FE) model of a thorax simulating spontaneous breathing. The model is based on a 0.625 mm slice thickness CT data set. In this FE model, various FC injury patterns were implemented to examine the impact of an increasingly large flail segment on tidal volume and respiratory work. The impact of the segmental defect sizes on the outcome measures mentioned above was examined using correlation analyses.</p><p><strong>Results: </strong>The FE model in this study reliably simulated the spontaneous breathing patterns of an actively breathing patient in an uninjured setting as a reference and showed clinically realistic movements of the flail segments for various injury settings. Correlation analysis showed a significant negative correlation between the FC size and tidal volume (R<sup>2</sup> = 0.852, p = 0.003), while absolute (R<sup>2</sup> = 0.845, p = 0.0096) and relative loss (R<sup>2</sup> = 0.844, p = 0.0096) of tidal volume concerning the intact model and the compensatory respiratory work required (R<sup>2</sup> = 0.816, p = 0.0136) were positively correlated with FC size.</p><p><strong>Conclusion: </strong>This study presents an FE model of the thorax of a patient who presented to our clinic as an MT patient with an FC injury. The FE model fulfills physiologic active breathing patterns and simulates an FC injury's paradoxical movement, realistically depicting clinical observations. The FE model showed that the number of consecutive ribs involved in the flail segment and the length of the flail segment significantly impacted active breathing concerning tidal volumes and respiratory work. With this, we have made the first step to define a trigger for surgery.</p>","PeriodicalId":12064,"journal":{"name":"European Journal of Trauma and Emergency Surgery","volume":"51 1","pages":"25"},"PeriodicalIF":1.9,"publicationDate":"2025-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11742335/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143002750","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-01-17DOI: 10.1007/s00068-024-02731-4
Koen D Oude Nijhuis, Britt Barvelink, Jasper Prijs, Yang Zhao, Zhibin Liao, Ruurd L Jaarsma, Frank F A IJpma, Joost W Colaris, Job N Doornberg, Mathieu M E Wijffels
Purpose: Distal radius fractures (DRFs) are often initially assessed by junior doctors under time constraints, with limited supervision, risking significant consequences if missed. Convolutional Neural Networks (CNNs) can aid in diagnosing fractures. This study aims to internally and externally validate an open source algorithm for the detection and localization of DRFs.
Methods: Patients from a level 1 trauma center from Adelaide, Australia that presented between 2016 and 2020 with wrist trauma were retrospectively included. Radiographs were reviewed confirming the presence or absence of a fracture, as well as annotating radius, ulna, and fracture location. An internal validation dataset from the same hospital was created. An external validation set was created with two other level 1 trauma centers, from Groningen and Rotterdam, the Netherlands. Three surgeons reviewed both sets for DRFs.
Results: The algorithm was trained on 659 radiographs. The internal validation set included 190 patients, showing an accuracy of 87% and an AUC of 0.93 for DRF detection. The external validation set consisted of 188 patients, with an accuracy and AUC were 82% and 0.88 respectively. Radial and ulnar bone segmentation on the internal validation was excellent with an AP50 of 99 and 98, but moderate for fracture segmentation with an AP50 of 29. For external validation the AP50 was 92, 89 and 25 for radius, ulna, and fracture respectively.
Conclusion: This open-source algorithm effectively detects DRFs with high accuracy and localizes them with moderate accuracy. It can assist clinicians in diagnosing suspected DRFs and is the first radiograph-based CNN externally validated on patients from multiple hospitals.
{"title":"An open source convolutional neural network to detect and localize distal radius fractures on plain radiographs.","authors":"Koen D Oude Nijhuis, Britt Barvelink, Jasper Prijs, Yang Zhao, Zhibin Liao, Ruurd L Jaarsma, Frank F A IJpma, Joost W Colaris, Job N Doornberg, Mathieu M E Wijffels","doi":"10.1007/s00068-024-02731-4","DOIUrl":"10.1007/s00068-024-02731-4","url":null,"abstract":"<p><strong>Purpose: </strong>Distal radius fractures (DRFs) are often initially assessed by junior doctors under time constraints, with limited supervision, risking significant consequences if missed. Convolutional Neural Networks (CNNs) can aid in diagnosing fractures. This study aims to internally and externally validate an open source algorithm for the detection and localization of DRFs.</p><p><strong>Methods: </strong>Patients from a level 1 trauma center from Adelaide, Australia that presented between 2016 and 2020 with wrist trauma were retrospectively included. Radiographs were reviewed confirming the presence or absence of a fracture, as well as annotating radius, ulna, and fracture location. An internal validation dataset from the same hospital was created. An external validation set was created with two other level 1 trauma centers, from Groningen and Rotterdam, the Netherlands. Three surgeons reviewed both sets for DRFs.</p><p><strong>Results: </strong>The algorithm was trained on 659 radiographs. The internal validation set included 190 patients, showing an accuracy of 87% and an AUC of 0.93 for DRF detection. The external validation set consisted of 188 patients, with an accuracy and AUC were 82% and 0.88 respectively. Radial and ulnar bone segmentation on the internal validation was excellent with an AP50 of 99 and 98, but moderate for fracture segmentation with an AP50 of 29. For external validation the AP50 was 92, 89 and 25 for radius, ulna, and fracture respectively.</p><p><strong>Conclusion: </strong>This open-source algorithm effectively detects DRFs with high accuracy and localizes them with moderate accuracy. It can assist clinicians in diagnosing suspected DRFs and is the first radiograph-based CNN externally validated on patients from multiple hospitals.</p>","PeriodicalId":12064,"journal":{"name":"European Journal of Trauma and Emergency Surgery","volume":"51 1","pages":"26"},"PeriodicalIF":1.9,"publicationDate":"2025-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11742337/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143002749","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}