Pub Date : 2025-12-29DOI: 10.1007/s00113-025-01665-9
Bergita Ganse
This article presents my career path, which combines trauma surgery with space medical research. I was asked to describe for young colleagues both my career path and my work as a research university professor, which combines clinical experimental trauma surgery research with human physiological research in the context of space travel. In addition to specializing in orthopedics and trauma surgery, I completed the residency in physiology at the Charité in Berlin and at the German Aerospace Center in Cologne, before completing my postdoctoral thesis on the musculoskeletal system in space flight. Together with international collaboration partners, I have been involved in experiments in international space projects for many years, for example in bed rest studies, in research in Antarctica and on the International Space Station. In this article I also reflect the advantages and disadvantages of my work and what inspires me about it.
{"title":"[Musculoskeletal research : Trauma surgery and space flight].","authors":"Bergita Ganse","doi":"10.1007/s00113-025-01665-9","DOIUrl":"https://doi.org/10.1007/s00113-025-01665-9","url":null,"abstract":"<p><p>This article presents my career path, which combines trauma surgery with space medical research. I was asked to describe for young colleagues both my career path and my work as a research university professor, which combines clinical experimental trauma surgery research with human physiological research in the context of space travel. In addition to specializing in orthopedics and trauma surgery, I completed the residency in physiology at the Charité in Berlin and at the German Aerospace Center in Cologne, before completing my postdoctoral thesis on the musculoskeletal system in space flight. Together with international collaboration partners, I have been involved in experiments in international space projects for many years, for example in bed rest studies, in research in Antarctica and on the International Space Station. In this article I also reflect the advantages and disadvantages of my work and what inspires me about it.</p>","PeriodicalId":75280,"journal":{"name":"Unfallchirurgie (Heidelberg, Germany)","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145851693","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-12-22DOI: 10.1007/s00113-025-01663-x
Christoph Obermeyer
The field of orthopedics and trauma surgery is more than just scalpels and screws: it combines craftsmanship, thinking and attitude. My path led me from university traumatology to elective orthopedics and rehabilitation to a field that is often overlooked: medical assessment. Where medicine, law and economics converge, new perspectives emerged for me and the idea of rethinking medical assessment. My model, which combines efficiency, quality and collegiality, developed from my clinical and assessment experience, curiosity and entrepreneurial spirit. My career path is an invitation to experience medicine and cooperation beyond traditional paths and to courageously forge your own path.
{"title":"[Full-time medical expert : Once university clinic and back again].","authors":"Christoph Obermeyer","doi":"10.1007/s00113-025-01663-x","DOIUrl":"https://doi.org/10.1007/s00113-025-01663-x","url":null,"abstract":"<p><p>The field of orthopedics and trauma surgery is more than just scalpels and screws: it combines craftsmanship, thinking and attitude. My path led me from university traumatology to elective orthopedics and rehabilitation to a field that is often overlooked: medical assessment. Where medicine, law and economics converge, new perspectives emerged for me and the idea of rethinking medical assessment. My model, which combines efficiency, quality and collegiality, developed from my clinical and assessment experience, curiosity and entrepreneurial spirit. My career path is an invitation to experience medicine and cooperation beyond traditional paths and to courageously forge your own path.</p>","PeriodicalId":75280,"journal":{"name":"Unfallchirurgie (Heidelberg, Germany)","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145806412","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-12-19DOI: 10.1007/s00113-025-01664-w
Christian Sturm
The discipline of orthopedics and trauma surgery is very broad and offers a wide range of options. In the area of conservative treatment it also includes methods of physical medicine. Therefore, it is also possible to work in this large field of physical and rehabilitative medicine (PRM) and there is a great deal of overlap between the two. The outcome of good surgical treatment often depends on high-quality follow-up care. Conservative treatment also offers a wide range of treatment options that present a professional challenge. Experience of orthopedics and trauma surgery is a great advantage for both. Knowledge of surgery and rehabilitative care is particularly useful at the interfaces of rehabilitation. Career pathways for interested individuals can therefore vary greatly between the different fields and offer an exciting range of tasks and opportunities, especially in interprofessional collaboration and interdisciplinary cooperation.
{"title":"[Occupational options in outpatient and inpatient rehabilitation].","authors":"Christian Sturm","doi":"10.1007/s00113-025-01664-w","DOIUrl":"https://doi.org/10.1007/s00113-025-01664-w","url":null,"abstract":"<p><p>The discipline of orthopedics and trauma surgery is very broad and offers a wide range of options. In the area of conservative treatment it also includes methods of physical medicine. Therefore, it is also possible to work in this large field of physical and rehabilitative medicine (PRM) and there is a great deal of overlap between the two. The outcome of good surgical treatment often depends on high-quality follow-up care. Conservative treatment also offers a wide range of treatment options that present a professional challenge. Experience of orthopedics and trauma surgery is a great advantage for both. Knowledge of surgery and rehabilitative care is particularly useful at the interfaces of rehabilitation. Career pathways for interested individuals can therefore vary greatly between the different fields and offer an exciting range of tasks and opportunities, especially in interprofessional collaboration and interdisciplinary cooperation.</p>","PeriodicalId":75280,"journal":{"name":"Unfallchirurgie (Heidelberg, Germany)","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145795754","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-12-05DOI: 10.1007/s00113-025-01656-w
Carl Neuerburg, Susanne Mayer-Wagner, Cornelia Lützner, Yunjie Zhang, Stefanie Deckert, Anna Fuhrmann
Pertrochanteric femoral fractures account for approximately half of all hip-related fractures and are associated with a significant loss of mobility and quality of life as well as a high mortality risk within the first year. The increasing incidence of these fractures is primarily attributed to demographic changes in our aging society. The majority of these injuries, also referred to as fragility fractures, result from low-energy trauma and are often facilitated by reduced bone quality due to osteoporosis. Globally, the incidence of proximal femoral fractures is projected to quadruple from 1.7 million cases per year in 1990 to 6.3 million cases per year by 2050. For pertrochanteric femoral fractures the gender distribution is 69% female and 31% male and the age distribution is 13% under 70 years and 87% over 70 years. This article provides a short overview on the most important surgical and interdisciplinary treatment aspects for the care of older patients with pertrochanteric femoral fractures.
{"title":"[Pertrochanteric fractures].","authors":"Carl Neuerburg, Susanne Mayer-Wagner, Cornelia Lützner, Yunjie Zhang, Stefanie Deckert, Anna Fuhrmann","doi":"10.1007/s00113-025-01656-w","DOIUrl":"https://doi.org/10.1007/s00113-025-01656-w","url":null,"abstract":"<p><p>Pertrochanteric femoral fractures account for approximately half of all hip-related fractures and are associated with a significant loss of mobility and quality of life as well as a high mortality risk within the first year. The increasing incidence of these fractures is primarily attributed to demographic changes in our aging society. The majority of these injuries, also referred to as fragility fractures, result from low-energy trauma and are often facilitated by reduced bone quality due to osteoporosis. Globally, the incidence of proximal femoral fractures is projected to quadruple from 1.7 million cases per year in 1990 to 6.3 million cases per year by 2050. For pertrochanteric femoral fractures the gender distribution is 69% female and 31% male and the age distribution is 13% under 70 years and 87% over 70 years. This article provides a short overview on the most important surgical and interdisciplinary treatment aspects for the care of older patients with pertrochanteric femoral fractures.</p>","PeriodicalId":75280,"journal":{"name":"Unfallchirurgie (Heidelberg, Germany)","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145678697","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-12-04DOI: 10.1007/s00113-025-01662-y
{"title":"Dank an die Gutachterinnen und Gutachter 2025.","authors":"","doi":"10.1007/s00113-025-01662-y","DOIUrl":"https://doi.org/10.1007/s00113-025-01662-y","url":null,"abstract":"","PeriodicalId":75280,"journal":{"name":"Unfallchirurgie (Heidelberg, Germany)","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145672521","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-12-01Epub Date: 2025-08-25DOI: 10.1007/s00113-025-01619-1
Yasmin Hartmann, Katherine Rascher, Miguel Pishnamaz, Filippo Migliorini, Klemens Horst, Matthias Knobe, Frank Hildebrand, Christian David Weber
Background: There is an almost unique certification structure in Germany in which clinics can be certified either as trauma center DGU® (TraumaZentrum DGU®), geriatric trauma center DGU® (AltrsTraumaZentrum DGU®) or arthroplasty center (endoCert), among others. Geriatric patients with displaced femoral neck fractures represent a highly relevant entity. The structural and process quality are validated within the framework of certification as both an AltersTraumaZentrum DGU® (ATZ) and arthroplasty center (EPZ), which represents a methodologically challenging approach to the analysis of treatment reality.
Objective: Is there a treatment variation between certified geriatric trauma centers (ATZ) and dual certified geriatric and arthroplasty centers (ATZ+EPZ) with respect to joint-preserving or joint replacement surgical procedures for geriatric displaced femoral neck fractures and short-term complications?
Material and methods: Data from the Registry for Geriatric Trauma of the German Trauma Society (ATR-DGU) from 46 clinics with ATZ and 52 clinics with ATZ + EPZ were analyzed. The follow-up period included both the in-hospital stay and a 120-day follow-up interval. The primary outcome was mortality, secondary endpoints included mobility, reoperations and health status. Univariate and multivariate analyses were performed to calculate odds ratios (OR) after adjustment for age, gender, ASA score and concomitant injuries.
Results: The median age of the collective (n = 7389) was 84 years, 29.6% and 29.8% respectively were male, the median time until surgery was 20.9 h (ATZ) vs. 20.5 h (ATZ + EPZ) and the median length of stay was 15.1 days for both types of center. The number of joint-preserving interventions was significantly increased in ATZ compared to clinics with dual certification (ATZ: 8.6% vs. ATZ + EPZ: 2.6%; OR = 3.63). The reoperation rate was comparable in the primary stay (3.7% vs. 3.9%) but was significantly increased over the 120-day course in clinics with dual certification (4.1% vs. 6.0%; p = 0.022). Revisions due to periprosthetic fractures occurred more frequently in ATZ without EPZ (8.2% vs. 3.5%). The multivariate analysis showed an increased mortality in the acute phase (OR 1.26; 1.02-1.56; p = 0.031), an increased rate of reoperations in the 120-day course (OR 1.45; 1.06-2.02; p = 0.024) and inpatient readmissions (OR 1.42, 1.02-2.00; p = 0.043) for centers with dual certification.
Conclusion: In Germany an institutional treatment variation for geriatric displaced femoral neck fractures exists. In certified geriatric trauma centers without certified arthroplasty center there is a significantly increased rate of joint-preserving treatment with differences in terms of morbidity and mortality in the acute phase.
背景:在德国有一个几乎独特的认证结构,诊所可以被认证为创伤中心DGU®(创伤中心DGU®),老年创伤中心DGU®(AltrsTraumaZentrum DGU®)或关节成形术中心(endoCert)等。老年患者移位股骨颈骨折是一个高度相关的实体。结构和工艺质量在AltersTraumaZentrum DGU®(ATZ)和关节成形术中心(EPZ)的认证框架内得到验证,这代表了一种方法上具有挑战性的方法来分析治疗现实。目的:老年创伤中心(ATZ)和双重认证的老年和关节置换中心(ATZ+EPZ)对于老年移位性股骨颈骨折和短期并发症的关节保留或关节置换手术治疗是否存在差异?材料和方法:对来自德国创伤学会老年创伤登记处(ATR-DGU)的46家ATZ诊所和52家ATZ + EPZ诊所的数据进行分析。随访期间包括住院时间和120天的随访间隔。主要终点是死亡率,次要终点包括活动能力、再手术和健康状况。进行单因素和多因素分析,计算年龄、性别、ASA评分和伴随损伤校正后的优势比(OR)。结果:患者的中位年龄(n = 7389)为84岁,其中男性占29.6%,男性占29.8%。两种中心的中位手术时间分别为20.9 h (ATZ)和20.5 h (ATZ + EPZ),两种中心的中位住院时间均为15.1天。与双重认证的诊所相比,ATZ的关节保护干预措施数量显著增加(ATZ: 8.6% vs. ATZ + EPZ: 2.6%; OR = 3.63)。初次住院期间的再手术率相当(3.7% vs. 3.9%),但在120天的疗程中,双认证诊所的再手术率显著增加(4.1% vs. 6.0%; p = 0.022)。在没有EPZ的ATZ患者中,假体周围骨折的翻修发生率更高(8.2% vs. 3.5%)。多因素分析显示,在具有双重认证的中心,急性期死亡率增加(OR 1.26; 1.02-1.56; p = 0.031),120天内再手术率增加(OR 1.45; 1.06-2.02; p = 0.024),住院再入院率增加(OR 1.42, 1.02-2.00; p = 0.043)。结论:在德国,老年性股骨颈移位骨折的机构治疗存在差异。在没有关节成形术中心的老年性创伤中心,关节保留治疗在急性期的发病率和死亡率方面显著增加。
{"title":"[Surgical treatment variation of displaced femoral neck fractures in certified centers for geriatric trauma DGU® and arthroplasty centers in Germany].","authors":"Yasmin Hartmann, Katherine Rascher, Miguel Pishnamaz, Filippo Migliorini, Klemens Horst, Matthias Knobe, Frank Hildebrand, Christian David Weber","doi":"10.1007/s00113-025-01619-1","DOIUrl":"10.1007/s00113-025-01619-1","url":null,"abstract":"<p><strong>Background: </strong>There is an almost unique certification structure in Germany in which clinics can be certified either as trauma center DGU® (TraumaZentrum DGU®), geriatric trauma center DGU® (AltrsTraumaZentrum DGU®) or arthroplasty center (endoCert), among others. Geriatric patients with displaced femoral neck fractures represent a highly relevant entity. The structural and process quality are validated within the framework of certification as both an AltersTraumaZentrum DGU® (ATZ) and arthroplasty center (EPZ), which represents a methodologically challenging approach to the analysis of treatment reality.</p><p><strong>Objective: </strong>Is there a treatment variation between certified geriatric trauma centers (ATZ) and dual certified geriatric and arthroplasty centers (ATZ+EPZ) with respect to joint-preserving or joint replacement surgical procedures for geriatric displaced femoral neck fractures and short-term complications?</p><p><strong>Material and methods: </strong>Data from the Registry for Geriatric Trauma of the German Trauma Society (ATR-DGU) from 46 clinics with ATZ and 52 clinics with ATZ + EPZ were analyzed. The follow-up period included both the in-hospital stay and a 120-day follow-up interval. The primary outcome was mortality, secondary endpoints included mobility, reoperations and health status. Univariate and multivariate analyses were performed to calculate odds ratios (OR) after adjustment for age, gender, ASA score and concomitant injuries.</p><p><strong>Results: </strong>The median age of the collective (n = 7389) was 84 years, 29.6% and 29.8% respectively were male, the median time until surgery was 20.9 h (ATZ) vs. 20.5 h (ATZ + EPZ) and the median length of stay was 15.1 days for both types of center. The number of joint-preserving interventions was significantly increased in ATZ compared to clinics with dual certification (ATZ: 8.6% vs. ATZ + EPZ: 2.6%; OR = 3.63). The reoperation rate was comparable in the primary stay (3.7% vs. 3.9%) but was significantly increased over the 120-day course in clinics with dual certification (4.1% vs. 6.0%; p = 0.022). Revisions due to periprosthetic fractures occurred more frequently in ATZ without EPZ (8.2% vs. 3.5%). The multivariate analysis showed an increased mortality in the acute phase (OR 1.26; 1.02-1.56; p = 0.031), an increased rate of reoperations in the 120-day course (OR 1.45; 1.06-2.02; p = 0.024) and inpatient readmissions (OR 1.42, 1.02-2.00; p = 0.043) for centers with dual certification.</p><p><strong>Conclusion: </strong>In Germany an institutional treatment variation for geriatric displaced femoral neck fractures exists. In certified geriatric trauma centers without certified arthroplasty center there is a significantly increased rate of joint-preserving treatment with differences in terms of morbidity and mortality in the acute phase.</p>","PeriodicalId":75280,"journal":{"name":"Unfallchirurgie (Heidelberg, Germany)","volume":" ","pages":"926-936"},"PeriodicalIF":0.0,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12644125/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144981969","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-12-01Epub Date: 2025-09-22DOI: 10.1007/s00113-025-01633-3
Guido Schröder, Steffi S I Falk
Background: Necrotizing fasciitis is a life-threatening soft tissue infection characterized by rapid spread along fascial planes that can lead to systemic toxicity and death if left untreated.
Case: In the present case a 57-year-old male patient developed fulminant necrotizing fasciitis following a motorcycle accident with severe abrasion injuries to the left lower leg. Despite aggressive surgical intervention and antimicrobial treatment, the patient had a complicated course of intensive care. The case underlines the importance of early diagnosis and immediate interdisciplinary treatment in this surgical emergency.
{"title":"[Necrotizing fasciitis following a motorcycle accident : Case report of gas gangrene and a practical algorithm for clinical management].","authors":"Guido Schröder, Steffi S I Falk","doi":"10.1007/s00113-025-01633-3","DOIUrl":"10.1007/s00113-025-01633-3","url":null,"abstract":"<p><strong>Background: </strong>Necrotizing fasciitis is a life-threatening soft tissue infection characterized by rapid spread along fascial planes that can lead to systemic toxicity and death if left untreated.</p><p><strong>Case: </strong>In the present case a 57-year-old male patient developed fulminant necrotizing fasciitis following a motorcycle accident with severe abrasion injuries to the left lower leg. Despite aggressive surgical intervention and antimicrobial treatment, the patient had a complicated course of intensive care. The case underlines the importance of early diagnosis and immediate interdisciplinary treatment in this surgical emergency.</p>","PeriodicalId":75280,"journal":{"name":"Unfallchirurgie (Heidelberg, Germany)","volume":" ","pages":"959-966"},"PeriodicalIF":0.0,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145115409","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-12-01Epub Date: 2025-08-26DOI: 10.1007/s00113-025-01624-4
Mikolaj Bartosik, David Kern, Anne Sofie Vogelsang, Loretta Rother, Eckart Mayr, Ulf Culemann
Acetabular fractures with displaced fragments represent a complex intraoperative challenge. This case report describes the successful treatment of an acetabular fracture with native hip dislocation in a 56-year-old man following high-energy trauma. Open reduction and internal fixation using the Kocher-Langenbeck approach was initially unsuccessful due to a posterior wall fragment, necessitating a trochanteric flip osteotomy. The patient developed an avascular necrosis of the femoral head, which is a frequent complication of acetabular fractures associated with hip dislocation. This emphasizes the importance of regular control follow-up. Despite the high-energy mechanism of injury, the patient showed excellent results based on the Harris hip score (HHS).
{"title":"[High-energy trauma with complex acetabular fracture and incarcerated fragment].","authors":"Mikolaj Bartosik, David Kern, Anne Sofie Vogelsang, Loretta Rother, Eckart Mayr, Ulf Culemann","doi":"10.1007/s00113-025-01624-4","DOIUrl":"10.1007/s00113-025-01624-4","url":null,"abstract":"<p><p>Acetabular fractures with displaced fragments represent a complex intraoperative challenge. This case report describes the successful treatment of an acetabular fracture with native hip dislocation in a 56-year-old man following high-energy trauma. Open reduction and internal fixation using the Kocher-Langenbeck approach was initially unsuccessful due to a posterior wall fragment, necessitating a trochanteric flip osteotomy. The patient developed an avascular necrosis of the femoral head, which is a frequent complication of acetabular fractures associated with hip dislocation. This emphasizes the importance of regular control follow-up. Despite the high-energy mechanism of injury, the patient showed excellent results based on the Harris hip score (HHS).</p>","PeriodicalId":75280,"journal":{"name":"Unfallchirurgie (Heidelberg, Germany)","volume":" ","pages":"952-958"},"PeriodicalIF":0.0,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144982012","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-12-01Epub Date: 2025-09-03DOI: 10.1007/s00113-025-01628-0
Mark Lenz, Mirko Rocci, Martin Altmann, Boyko Gueorguiev
Polyaxial screw systems are the state of the art in the field of fracture fixation. In contrast to conventional monoaxial systems, the polyaxial constructs enable variable screw angulation, enhancing the adaptability of plate-screw configurations in different surgical scenarios and different anatomical circumstances. This article provides a comprehensive overview of the functional principles, clinical applications and inherent limitations of polyaxial stability. The conventional monaxial technology restricts screw positioning, potentially compromising fixation in some fracture situations or anatomical regions. In contrast, polyaxial systems enable adapted screw placement, addressing specific requirements arising during surgery. Various locking mechanisms based on friction, deformation, thread forms and engagement techniques, play crucial roles in achieving stability. The article discusses the key currently used technologies, their mechanical characteristics and comparative behavior as the biomechanical interaction between screws and plates is crucial for achieving maximum stability and preventing failure modes that could compromise fracture healing. This article emphasizes that while polyaxial systems offer enhanced fragment-specific screw positioning, their successful application relies on careful surgical technique and an understanding of the mechanics involved. By integrating insights from clinical experiences, biomechanics, and the literature, we aim to raise awareness and support decision-making in fracture management using polyaxial systems. Ultimately, the article advocates a balanced understanding of both the benefits and challenges associated with polyaxial fracture fixation in modern orthopedic trauma surgery.
{"title":"[Polyaxial angle stability].","authors":"Mark Lenz, Mirko Rocci, Martin Altmann, Boyko Gueorguiev","doi":"10.1007/s00113-025-01628-0","DOIUrl":"10.1007/s00113-025-01628-0","url":null,"abstract":"<p><p>Polyaxial screw systems are the state of the art in the field of fracture fixation. In contrast to conventional monoaxial systems, the polyaxial constructs enable variable screw angulation, enhancing the adaptability of plate-screw configurations in different surgical scenarios and different anatomical circumstances. This article provides a comprehensive overview of the functional principles, clinical applications and inherent limitations of polyaxial stability. The conventional monaxial technology restricts screw positioning, potentially compromising fixation in some fracture situations or anatomical regions. In contrast, polyaxial systems enable adapted screw placement, addressing specific requirements arising during surgery. Various locking mechanisms based on friction, deformation, thread forms and engagement techniques, play crucial roles in achieving stability. The article discusses the key currently used technologies, their mechanical characteristics and comparative behavior as the biomechanical interaction between screws and plates is crucial for achieving maximum stability and preventing failure modes that could compromise fracture healing. This article emphasizes that while polyaxial systems offer enhanced fragment-specific screw positioning, their successful application relies on careful surgical technique and an understanding of the mechanics involved. By integrating insights from clinical experiences, biomechanics, and the literature, we aim to raise awareness and support decision-making in fracture management using polyaxial systems. Ultimately, the article advocates a balanced understanding of both the benefits and challenges associated with polyaxial fracture fixation in modern orthopedic trauma surgery.</p>","PeriodicalId":75280,"journal":{"name":"Unfallchirurgie (Heidelberg, Germany)","volume":" ","pages":"900-906"},"PeriodicalIF":0.0,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144981950","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}