MUSCULOSKELETAL SURGERY最新文献

Forefoot disorders are prevalent in the general population, with an incidence between 2 and 20%. Among them, lesser toe deformities (hammer, claw, and mallet toes) are frequent disorders, and their conservative management is often not adequately considered but usually attempted before surgical indication. Among conservative treatments, shoe modifications and the application of orthoses may, in most cases, alleviate symptoms. From a careful analysis of the available literature, it emerged that treatment approaches should be individualized, and patient education has to be a central aspect of therapy. Proper footwear includes rocker and cushioned soles shoes, a wide toe box, proper length, and a lowered heel, eventually combined with the placement of a felt pad. Narrowed shoes must be avoided, limiting the impaction of the distal phalanx and toenail into the ground. A custom-made silicone orthosis applied at the second digit metatarsophalangeal (MTP) joint in a hammer or claw toe seems to reduce mean peak plantar pressure in the rigid stage of deformity but not the flexible one. A metatarsal pad placed 6.5 mm proximal to the second metatarsal head was demonstrated to diminish peak pressures by 33%, and a 12.5-mm insole further reduced peak metatarsal head pressures by 23% compared with a 2.5-mm insole. The best comfort of orthoses seems to be given by treating metatarsalgia resulting from deformities such as MTP joint instability, mallet, and claw toe. Little orthotic relevance is given to deformities such as hammer toes. Although the most significant obstacle appears to be the psychological aspect of patients, who must accept the placement of compensatory orthoses, some studies show that all these management appear to be often beneficial for the treatment of these disorders. However, none of them are permanent solutions to the deformity and they can be treatment of choice just in advanced stages, in elderly and low functional demand patients.

Medial patellofemoral ligament (MPFL) reconstruction is a widely recognized treatment for recurrent patellar dislocation. However, limited research addresses the outcomes of combining MPFL reconstruction with distal femoral varus osteotomy, particularly in patients with genu valgum. This study aims to evaluate the clinical outcomes of this combined surgical approach in individuals experiencing recurrent patellar dislocation associated with genu valgum. A systematic review followed PRISMA guidelines by searching the PubMed, Scopus, and Cochrane Library databases through July 1, 2024. Studies included patients whose MPFL reconstruction was combined with distal femoral varus osteotomy to treat recurrent patellar dislocation and genu valgum. A meta-analysis was performed to evaluate pain, clinical and functional outcomes, with data reported as mean difference (MD) and 95% confidence interval (CI). A total of three studies with 58 knees were included. Most of the patients were female 62.5%, with a mean patient age of 20.5 years and a mean follow-up of 26.4 months. The mean preoperative mechanical leg axis was 6.8° of valgus. After MPFL reconstruction with distal femoral varus osteotomy significant improvements were found in the Kujala score (MD, 33.64 [95% CI 31.3-35.99]), Lysholm score (MD, 34.89 [95% CI 23.27-46.51]), visual analog scale score for pain (MD, - 3.99 [95% CI - 5.66 to - 2.31]), and Tegner Activity Score (MD, 1.96 [95% CI 1.63-2.29]). No subluxation or redislocation occurred in any study during the follow-up period, and all reported radiological correction of genu valgum. Combined medial patellofemoral ligament reconstruction and distal femoral varus osteotomy in patients with recurrent patellar dislocation and genu valgum lead to significant improvements in clinical outcomes, such as pain relief and functional scores, as well as effective radiological correction of valgus deformity. However, further high-quality studies are needed to confirm these findings and establish stronger evidence for this combined approach. Systematic review and meta-analysis, level IV.

Purpose: Measures directed at infection prevention, particularly perioperative systemic antibiotic prophylaxis, have received widespread implementation and are considered a standard of care for patients undergoing operative management of fractures, especially with implant use. This study aimed to review the microbiology profile of patients with fracture-related infections (FRIs) in a sub-Saharan African country in order to establish the necessity or otherwise of Gram-negative cover in the selection of antibiotics for perioperative prophylaxis.

Methodology: This study retrospectively reviewed records of adult patients (aged 18 years and above) diagnosed with FRI from January 2018 to December 2022 in ten tertiary hospitals in Nigeria. Data related to demographics, fracture and FRI classification as well as pathogenic bacteria were obtained while data were analyzed with SPSS version 23.

Results: Over the study period, 137 cases met the inclusion criteria and their data were obtained for analysis. Gram-positive and Gram-negative bacteria species accounted for 70 (51%) and 67 (49%), respectively, of the entire microorganisms identified by bacteriological culture. The most common organisms isolated from culture include Staphylococcus aureus (62, 45.3%), Escherichia coli (29, 21.2%), Klebsiella pneumonia (17, 12.4%) and Pseudomonas aeruginosa (11, 8.1%). The distribution of pathogenic bacteria isolated from positive cultures of infected closed and open fractures revealed a predominance of Gram-negative bacteria in closed fractures accounting for 45(55.6%) of the 81 organisms isolated; however, Gram-negative organisms accounted for only 22 (39.3%) of the 56 organisms isolated in open fractures (P = 0.061).

Conclusion: The findings in this study suggest that Gram-negative cover may be necessary for optimal perioperative antibiotic coverage, particularly in the sub-Saharan Africa setting in patients undergoing internal fixation of fractures. We recommend that individual institutions should establish local prophylactic protocols that provide Gram-positive and Gram-negative pathogen coverage guided by local microbiological flora.

Introduction: Medial congruent (MC) systems and Posterior stabilized (PS) systems are widely utilized as implant options in total knee arthroplasties (TKAs). Nevertheless, determining which system yields superior clinical outcomes remains unresolved. This study seeks to compare these two systems by conducting a retrospective analysis of data from a single surgeon's registry encompassing both systems. Evaluation parameters consist of range of motion (ROM) and various clinical scoring systems.

Methods: A retrospective analysis of data from a single surgeon's registry compared 45 MC with PCL resected (MC-PCLR) TKAs with 44 PS TKAs. Inclusion criteria comprised primary knee osteoarthritis with a minimum 1-year follow-up, while exclusion criteria involved secondary knee osteoarthritis and revision TKAs. Range of motion, Oxford Knee Score (OKS), Knee Society Scoring System (KS) Function Score (KS-FS), and KS Knee Score (KS-KS) were assessed preoperatively, at 3 months, and at 12 months postoperatively. Statistical analysis was performed on retrieved data.

Results: Both group has similar baseline demographics in terms of gender (68% vs. 73% female, p = 0.60), BMI (26.4 ± 5.7 vs. 28.3 ± 5.1 p = 0.81) and American Society for Anaesthesiology score (75% vs. 84% score of 2, p = 0.12), with the exception of age where the PS group is significantly greater (71 ± 8 vs. 66 ± 7 years, p < 0.01). There was no significant difference in range of motion (ROM), Oxford Knee Score (OKS), Knee Society Scoring System (KS) Function Score (KS-FS) and KS Knee Score (KS-KS) for all time periods except for one time stamp where preoperatively, the preoperative KS Knee Score (KS-KS) was significantly lower in the PS group. However, when comparing the change between KS-KS of pre-operation and 3 months post operation (44 ± 18 vs. 31 ± 18,p < 0.01), and pre-operation and 1 year post operation (46 ± 16 vs. 34 ± 17,p < 0.01), it is found to be significantly higher in the PS group for both time periods. All other comparisons between the three time periods were found to have similar parameters.

Conclusions: PS and MC-PCLR demonstrates similar outcomes at the 1-year mark. However PS exhibits a faster rate of improvement from pre-operation to 3 months as compared to MC-PCLR.

Purpose: Short-stem implants offer several advantages, including the preservation of bone stock and a physiological load transfer in the subtrochanteric area. The aim of this study was to compare the radiological and functional outcomes of short stem and traditional stem during midterm follow-up.

Materials and methods: We conducted a retrospective analysis of a consecutive series of 50 patients with Fitmore and CLS stems. Clinical assessment was performed by Harris hip score; additionally, thigh pain was assessed at six months, one year, and the latest follow-up. The following radiological parameters were evaluated: stem alignment, presence of radiolucent lines and osteolysis around the stem, stem subsidence, cortical hypertrophy, femoral stress-shielding, pedestal formation at the tip of the stem, calcar resorption, heterotopic ossification, and implant loosening.

Results: The mean follow-up duration was 8.4 ± 2.1 years in the CLS group and 7.6 ± 2.2 years in the Fitmore group. The mean HHS improved from 43.0 ± 3.3 to 93.2 ± 2.5 for the CLS group and from 43.2 ± 4.4 to 93.6 ± 3.2 for the Fitmore group, without any statistical differences between the two groups. Thigh pain disappeared in all patients in the Fitmore group, while it persisted in 8% of the patients in the CLS group. There was a significant difference in the level of cortical hypertrophy between the two groups, with 28% in the Fitmore group compared to 12% in the CLS group. No statistically significant difference was observed for other radiological parameters.

Conclusions: Both short stems and standard stems demonstrated stable fixation and satisfactory clinical and radiological outcomes.

3D-printed (3DP) drill guides have demonstrated significant potential to accurately guide pedicle screw insertion in spinal surgery. However, their role in the upper cervical spine is not well established. This review aimed to compare the efficacy and safety of 3DP drill guides to the conventional fluoroscopic-guided free-hand technique for pedicle screw insertion in the upper cervical spine. A comprehensive literature search was conducted across five databases (Medline, Scopus, CENTRAL, Web of Science, and Embase). The meta-analysis compared the accuracy of pedicle screw placement, screw placement time, operative time, blood loss, fluoroscopy usage, and post-operative JOA and VAS scores between the two approaches. Seven studies were included in the review, encompassing 386 patients and 1,512 screws. The meta-analysis demonstrated that 3DP drill guides increased the rate of perfect screw insertion (OR: 4.34, P < 0.00001) and lowered the incidence of moderate (OR: 0.26, P < 0.00001) and poor (OR: 0.09, P < 0.00001) screw insertion compared to the free-hand technique. Additionally, operative time (MD: -36.07, P < 0.00001), blood loss (MD: -83.82, P < 0.00001), and fluoroscopy usage (MD: -3.47, P < 0.0001) was significantly reduced in the 3DP cohort. No significant difference was detected in screw placement time (MD: -2.65, P = 0.07), or post-operative JOA (MD: 0.17, P = 0.47), and VAS (MD: -0.09, P = 0.19) scores between the two cohorts. The review demonstrated that 3DP drill guides are a safe and effective tool to assist pedicle screw fixation in the upper cervical spine.

The aim is to identify the 50 most cited papers and thus the most influential papers pertaining to ACJ reconstruction, and specifically, analysing the level of evidence (LOE), article content, journals occurring, and countries represented within the 50 most cited. A search of the Web of Science database was carried out using the following terms: "Acromioclavicular joint" OR "AC joint" (Topic) AND Reconstruction OR Repair (Topic). The top 50 relevant articles were analysed in relation to citations, citation density, geographic origin of the article, year published, and article type. The articles were cited a total of 6053 times. The most cited article was cited 347 times. The highest citation density was 20.02, with a mean citation density of 7.71 ± 4.13. Seventy per cent of the articles involved clinical research, 74% of which involved level IV evidence. Fifty-two per cent of the articles were published in the American Journal of Sports Medicine (AJSM). Most authors originated from USA (n = 26 or 52%), followed by Germany (n = 14 or 28%). This study revealed a paucity of articles with higher LOE among the most cited. Eight of the top 10 are either theoretical or biomechanical studies, and one reports an examination technique. Only two of the top 10 reported outcomes following surgical intervention and can thus directly guide treatment. Future research in the area of ACJ reconstruction should focus on generating high-quality interventional studies capable of informing/impacting patient care. Publishing in journals such as AJSM or Arthroscopy may lead to more citations.

Purpose: Avascular necrosis (AVN) of the humeral head is a relatively frequent complication after proximal humerus fractures (PHF), often leading to poor outcomes and reoperation. This study investigates both non-modifiable (fracture type, trauma energy, age, sex, Charlson comorbidity index) and modifiable (surgical access, bone graft use, reduction quality) risk factors for post-operative AVN in Neer 3-4-part PHFs.

Methods: Patients with Neer 3-4-part PHFs treated using angular stable plates and followed for at least 6 months were included. Clinical and radiographic elements were evaluated. Statistical analysis was performed with SPSS 26, evaluating the data by both descriptive and univariate analyses.

Results: Among 121 patients (mean age 63, mean follow-up 10.1 months), 8 developed AVN (6.6% incidence). Only 50% of AVN cases occurred within the first 15 months of follow-up. AVN was significantly associated with 4-part fractures (p = 0.050), medial hinge disruption (p = 0.022), tuberosity comminution (p = 0.003), failure to restore the cervico-diaphyseal angle (p = 0.022), and residual varus/valgus deformity (p = 0.01). The presence of a bone graft suggested a fourfold-increased risk of AVN (OR = 4.219).

Conclusions: The present study confirms that the risk of necrosis is predicted by the type of fracture, as well as by the quality of fixation. Age, sex and CCI of the patient, varus/valgus fracture displacement, glenohumeral dislocation and energy of the trauma did not suggest the risk of AVN. These findings underscore the importance of meticulous surgical techniques to address these factors and potentially reduce the incidence of AVN.

Level of evidence iii: Prospective cohort study.

Purpose: Pain management after total hip arthroplasty (THA) is crucial for patient recovery and satisfaction. Various analgesic techniques exist, including the pericapsular nerve group (PENG) block and local infiltration analgesia (LIA). This study aims to compare the efficacy of PENG and LIA in postoperative pain management following THA.

Methods: A random-effects meta-analysis of randomized controlled trials (RCTs) comparing PENG and LIA in primary THA was conducted. A systematic search of MEDLINE, Embase, Cochrane Library, and SCOPUS was performed up to October 24, 2024. Pain scores, opioid consumption, and secondary outcomes such as complications and postoperative nausea and vomiting (PONV) were analysed.

Results: Four RCTs were included, with 128 patients receiving PENG and 130 receiving LIA. Demographics, including age, BMI, ASA status, and surgery duration, were comparable. Pain scores at 6, 12, 24, and 48 h were higher in the PENG group but not statistically significant. At 24 h, cumulative opioid consumption was higher in the LIA group [4.23 mg (95% CI: 0.50-7.96) vs. 3.97 mg (95% CI: 0.24-7.70)] though not statistically significant (p = 0.92). At 48 h, PENG had higher cumulative opioid consumption [6.78 mg (95% CI: 1.04-12.52) vs. 6.18 mg (95% CI: 0.91-11.45)] though not statistically significant (p  = 0.88). Secondary outcomes, including overall complication rates and PONV, showed no significant differences.

Conclusions: PENG and LIA are comparable in terms of their effectiveness post THA. LIA is non-inferior to PENG in terms of postoperative pain scores, cumulative opioid consumption, overall complication rates and rates of PONV.

Background: Short cementless femoral stems, designed for bone-preserving elective THA, are increasingly used for femoral neck fractures, yet their safety and effectiveness remain unclear.

Objective: To map current evidence on short cementless stems in fracture-related THA, focusing on complications, function, and revisions.

Methods: MedLine and Web of Science were searched to 30 April 2025. Studies reporting ≥ 5 THAs with short cementless stems for femoral neck fractures were included; data were charted and narratively synthesized.

Results: Five studies (477 short-stem, 70 standard-stem THAs; mean age 63 years; mean follow-up 65 months) met criteria. Short stems showed a 4.4% complication rate (0.6% intra-op fractures, 0.6% dislocations, 2.1% aseptic loosening) and 3.7% reoperations. Mean Harris Hip Score was 86.8-comparable to standard stems-with fewer surgical complications (4.4 vs. 15.7%).

Conclusion: Current evidence suggests short cementless stems are a safe, effective option for selected femoral neck fracture patients, but higher-quality, long-term studies are needed.