Low Rates of Hardware Removal and Tendon Rupture for the Acu-Loc 2 Volar Distal Radius Plate: A Minimum One-Year Follow-Up Study.

AIM: Volar locking plates designed for far distal radius fracture fixation can have a significant hardware removal rate and risk of tendon rupture. Plate design has a role in the rate of complications. This study assessed the hardware removal and tendon rupture rate of the Acu-Loc 2 volar distal radius (VDR) plate often used in the treatment of far distal radial fractures. METHOD: We searched our electronic healthcare records system for all patients who had undergone fixation with an Acu-Loc 2 VDR plate (Acumed, Hillsboro, OR, USA) at a tertiary center between January 2017 and December 2021. Patients were excluded if their follow-up time was less than one year or if they could not be contacted by telephone follow-up. Pre-operative radiographs were examined for fracture classification. Follow-up time was defined as the last contact in the clinic or by telephone. RESULTS: A total of 92 patients underwent an open reduction and internal fixation (ORIF) with an Acu-Loc 2 VDR plate. A total of 85 patients met the inclusion criteria for this study. Our cohort included 33 males (38.8%) and 52 females (61.2%). The mean age was 50 years. Twenty-seven fractures (31.0%) were extra-articular, and 60 fractures (69.0%) were intra-articular. The mean follow-up time for the patients was 593.3 days (range 369 to 1185 days). Four patients (4.7%) had their hardware removed. Three (3.5%) patients underwent removal due to tendon irritation and one patient (1.2%) due to a peri-prosthetic fracture around the plate. There were no tendon ruptures recorded. CONCLUSION: The Acu-Loc 2 VDR plate had a low medium-term hardware removal rate and no tendon ruptures. These rates are lower than would be expected when compared with other far distal plate designs.

A Face-to-Face Surgical Instrumentation Course During the COVID-19 Pandemic.

Objectives Surgical instrumentation teaching is included as an essential part of surgical training in the core surgical training syllabus. Access to formal teaching is variable, and opportunities for informal teaching have been further reduced by the COVID-19 pandemic. We aimed to design a course to fulfil these local trainees' needs. A move away from face-to-face teaching has occurred successfully during the pandemic, but little literature exists on how face-to-face courses can be best designed during this time. We aimed to describe the practicalities of running a face-to-face course with COVID restrictions. Methods Junior doctors and nurses rotated around five stations led by theatre nurses and senior doctors, each with common instruments from different surgical subspecialties. Social distancing was observed, and level 2 personal protective equipment (PPE) was worn throughout the course. Matched pre- and post-course tests allowed evaluation of learning. Results The course had 20 attendees, and the test scores improved following the course by an average of 9% (p = 0.009). All attendees (100%) found the course improved their knowledge and confidence. Feedback was overwhelmingly positive, and the significant improvement in the multiple-choice question (MCQ) scores demonstrates that this was an effective method of delivering teaching despite the COVID-19 restrictions on social distancing. Conclusion This course shows that instrumentation training is valuable to trainees and provides a good example to other educators, showing the workings of how a practical course may be run face-to-face during the pandemic.

Capitate shortening osteotomy and vascularized bone grafting for Kienböck's disease in ulnar positive or neutral wrists.

We report the short- to medium-term outcomes for patients with Kienböck's disease and ulnar positive or neutral wrists treated by capitate shortening osteotomy combined with a 4 + 5 extensor compartmental artery vascularized bone graft placed in the lunate. This is a retrospective study of seven consecutive patients with Lichtman Stage 2 to 3B. Radiological and clinical outcomes were evaluated. Six patients maintained their Lichtman stage, one progressed. Mean time to union of the capitate was 10 weeks. Five of six lunates were completely revascularized on MRI scans, with one partial revascularization. Mean follow-up for functional scores was 40 months (range 15 to 62). Mean pain score improved significantly from 7.4/10 preoperatively to 1.9/10 postoperatively, and patient satisfaction was 9.2/10. Mean postoperative Quick Disabilities of Arm, Shoulder and Hand, Patient Evaluation Measure and Patient-Rated Wrist Evaluation scores were improved. All patients returned to their previous work. We conclude that this procedure has good short- to medium-term outcomes.Level of evidence: IV.

The use of low-intensity pulsed ultrasound in hand and wrist nonunions.

The management of hand and wrist nonunions is challenging and alternatives or adjuncts to surgery to promote healing are an attractive prospect. Low-intensity pulsed ultrasound (LIPUS) is reported to improve bone healing and is supported for use in nonunions. However, evidence supporting its use for established nonunions is based largely on long bones, with little evidence guiding use in the hand and wrist. The objective of this study is to present our experience using LIPUS in established nonunions of the hand and wrist. This is a retrospective cohort study of hand and wrist nonunions managed with LIPUS in two UK tertiary referral centers. Nonunion was defined as the failure of fracture healing at a minimum of 9 months post injury. Demographic and clinical data including nonunion site, union rates, surgery and time from surgery to LIPUS application were obtained from electronic patient and LIPUS device records. Patients were subcategorized into early or delayed LIPUS applications groups. Twenty-six hand and wrist nonunions were treated with LIPUS alone or as a surgical adjunct. The overall union rate was 62%. Age, sex, fracture characteristics and previous treatment had no significant effect on union rates. There was no association between LIPUS timing and union following adjustment for co-variates. Our findings suggest previously quoted union rates using LIPUS for lower limb nonunions may not be achievable in the hand and wrist. However, LIPUS offers a safe adjunct to surgery and may offer a potential alternative when surgery is not feasible. Further prospective comparative studies are required before the efficacy of LIPUS for hand and wrist nonunions is proven.

Procedure-based assessments in trauma and orthopaedic training--The trainees' perspective.

INTRODUCTION: The study aimed to gain an understanding of the attitudes of trauma and orthopaedic (T&O) trainees regarding procedure-based assessments (PBAs) and identify factors that influence any perceived educational benefit. METHODS AND MATERIALS: A questionnaire was emailed to all T&O trainees in the UK via an established e-mail communication tool after an initial pilot exercise. The data were analysed using the online survey software. RESULTS: Of the 616 trainees included 53% found PBAs useful as a learning tool for delivery of feedback. Trainees agreed that there were barriers to the successful use of PBAs (61%). Completing the PBA at the time of the procedure (p < 0.001) and the trainer delivering quality feedback with PBAs (p < 0.001) significantly increased the number of trainees perceiving an improvement in their practice. Completing higher numbers of PBAs did not have this effect (p = 0.26). There was wide geographical variation in the use of PBAs by trainees. CONCLUSIONS: This is the first nationwide study offering a deeper insight into factors influencing T&O trainees' perceptions of the educational benefit gained from using PBAs. This study informs the debate on how to improve the effective use of PBAs in T&O training, and generally, of workplace-based assessments in surgical training.

Bilateral thumb metacarpophalangeal joint fusions for severe hyperextension deformities in conjunction with carpometacarpal joint reconstructions.

BACKGROUND: Hyperextension of the first metacarpophalangeal (MCP) joint and adduction of the first web space of the hand are features of advanced stages of carpometacarpal (CMC) joint arthrosis. Restoration of mechanical efficiency in such patients requires stabilization of both the CMC and MCP joints. This study describes a patient with bilateral secondary hyperextension of the MCP joint greater than 50° who displayed good functional outcome following staged bilateral MCP joint arthrodesis with simultaneous CMC joint reconstruction. CASE REPORT: Excision of trapezium, formation of a Weilby sling utilising flexor carpi radialis, and insertion of a Swanson's prosthesis forms the basis of CMC joint reconstruction. Fusion of the MCP joint involved placement of longitudinal K-wires and tension band wiring. The patient underwent an initial right-sided procedure in 2008 and subsequently elected for the same procedure on the contralateral side 26 months later. Good functional improvement was achieved with a pre and postoperative DASH score of 49 and 8 respectively. Follow-up and radiological imaging at 34 months from her initial surgery confirmed good positions of the prostheses and solid MCP joint fusions. The patient developed postoperative interphalangeal joint pain, which responded to steroid injection. DISCUSSION: There is currently limited evidence available addressing the management of severe hyperextension deformity greater than 50° of the MCP joint in the presence of CMC joint arthrosis. Staged bilateral fusion of the MCP joint and simultaneous CMC joint reconstruction in this case illustrates good, reproducible functional results and patient satisfaction with reduced postoperative return to function.

A radiological sign in chronic collateral ligament injuries of the thumb metacarpophalangeal joint.

BACKGROUND: Differentiating chronic from acute injuries of the collateral ligament of the metacarpophalangeal joint (MCPJ) of the thumb can be difficult in the absence of a conclusive history and examination. We aimed to establish the presence of a radiological sign in patients with a chronic injury and the reliability of the sign in differentiating chronic from acute ligament injury. METHODS: Consecutive patients undergoing surgical treatment for chronic (n = 14) or acute (n = 8) ligament injury of the MCPJ of the thumb were identified retrospectively. Six upper limb orthopedic surgeons and four musculoskeletal radiologists were recruited from three regional centers. Observers judged the presence or absence of the sign, an exostosis at the level of the neck of the thumb metacarpal, on radiographs presented on a computer program. The radiographs were then observed in a different random order. The sensitivity, specificity, positive predictive value (PPV), and negative predictive values (NPV) of the radiological sign were evaluated for each observer and the intra- and interobserver error was calculated. RESULTS: The mean observer specificity and sensitivity for the sign were 84 and 54 %, respectively. The PPV and NPV were 89 and 52 %, respectively. The kappa statistic for intraobserver error was 0.69 and interobserver error 0.34. CONCLUSIONS: A radiological sign associated with chronic collateral ligament injuries of the MCPJ of the thumb is established. The presence of the sign can increase the confidence of the clinician in differentiating chronic from acute collateral ligament injuries, when history and examination are inconclusive in this respect.