Global trends of hand and wrist trauma: a systematic analysis of fracture and digit amputation using the Global Burden of Disease 2017 Study

Semi-occlusive dressings for the management of fingertip amputations: A systematic review

Background

Fingertip amputations can be managed using a number of surgical and nonsurgical techniques including semi-occlusive dressings.

Aim

The aim of this systematic review is to assess the efficacy and safety of semi-occlusive dressings for fingertip amputations.

Methods

A systematic review was conducted according to the Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) guidelines. The following databases were searched: Medline, Embase and CINAHL. The primary outcomes included healing rate and time to epithelialization. Secondary outcomes included patient satisfaction, finger range of motion (ROM), patient reported outcome measures (PROMs), fingertip sensitivity, need for surgical intervention and complications.

Results

A total of 15 studies met the inclusion criteria with a total of 611 fingertip amputations. The mean overall healing rate was 97.4 % and the mean time to complete epithelialization was 30 days. Ninety three percent of patients achieved full ROM. A 96.5 % of patients reported being either satisfied or very satisfied with their outcome. Mean time to return to work was 22.3 days. Complications were reported in 31 % of patients, most of which were considered minor. Only 1.5 % of patients required surgical intervention.

Conclusion

Semi-occlusive dressing therapy is a safe and effective treatment modality for patients with fingertip amputations without bone exposure. Further comparative studies are needed to outline the role and protocols of semi-occlusive dressings in fingertip amputations.

Development of International Quality Measures Targeting Low-Value Care in Hand Surgery

PURPOSE

Low-value care, defined as care in which there is no evidence of benefit, increases the risk of harm, or adds unnecessary costs, persists in hand and upper extremity care globally. To date, there are no quality measures to measure low-value care for a global setting. We aimed to develop international quality measures that are important, feasible, usable, and scientifically acceptable for reducing low-value care in hand surgery.

METHODS

We performed a literature review to identify areas of potential low-value care for hand surgery. A consortium of 11 United States-based surgeons with experience in hand and upper-extremity surgery and/or quality measure development completed a modified Research and Development (RAND)/ University of California, Los Angeles (UCLA) Delphi Appropriateness process to evaluate the importance, feasibility, usability, and scientific acceptability of 10 candidate quality measures to reduce low-value hand surgical care. A modified RAND/UCLA Delphi Appropriateness process was subsequently conducted that included a panel of 20 international hand surgeons who voted on the same 10 measures using the same voting criteria. Panelist agreement or disagreement was assessed using predetermined criteria.

RESULTS

United States and international panelists achieved agreement on the four criteria for five of the 10 measures; thus, these five measures were deemed valid. These measures include minimizing the unnecessary use of immobilization for fifth metacarpal neck fractures, postinjury imaging of distal radius fractures, perioperative antibiotics for soft tissue hand surgery, pre-operative testing, and opioid use after hand surgery. Two measures were deemed valid by the US panelists only, and two measures were deemed valid by the international panel only.

CONCLUSIONS

United States- and international-based hand and upper-extremity surgeons achieved consensus on an international quality measure portfolio to reduce low-value care in hand surgery, which may vary in practices settings globally.

CLINICAL RELEVANCE

These quality measures may be used to reduce low-value care in many types of health systems globally.

Effectiveness of a scapular exercise program on functional outcomes in patients with hand, wrist or elbow disorders: A comprehensive systematic review with meta-analysis

BACKGROUND

Usually, patients with hand, wrist/forearm disorders report musculoskeletal complaints in the shoulder. Although, role of scapula is fundamental for movement and functional stability across the upper limb kinetic chain; however, there are no systematic reviews and meta-analyses that have analyzed the effect of scapular exercises in these patients.

PURPOSE

This study aimed to determine the effectiveness of a scapular exercise program on functional outcomes in patients with hand, wrist or elbow disorders.

STUDY DESIGN

Systematic review with meta-analysis.

METHODS

An electronic search was performed of the MEDLINE, EMBASE, Web of Science, Scopus, CENTRAL, Epistemonikos, CINAHL, SPORTDiscus, PEDro, and LILACS databases. The eligibility criteria included randomized clinical trials that investigated the effects of scapular exercises added to a conventional physiotherapy program on functional outcomes in patients with hand, wrist or elbow injuries or pathologies. Two authors independently performed the search, study selection, data extraction, and risk of bias assessment.

RESULTS

Six trials met the eligibility criteria and were included in the quantitative synthesis. For the comparison of scapular exercises plus conventional physiotherapy versus conventional physiotherapy alone, the mean difference for elbow and wrist function was 7.6 points (p = 0.04), upper limb function was 16.1 points (p < 0.01), grip strength was 15.4% (p = 0.01), pain free grip strength was 19.1 N (p = 0.13) and pain intensity at rest was -1.1 cm (p < 0.01). Additionally, there was a significant increase in muscle strength of serratus anterior 46.2 N (p < 0.01), middle trapezius 29.9 N (p = 0.01) and lower trapezius 45.9 N (p < 0.01).

CONCLUSIONS

In the short term, adding scapular exercises to conventional physiotherapy showed statistically significant differences in functional outcomes in patients with lateral elbow tendinopathy and distal radius fracture. However, most of these differences did not reach the minimum threshold to be considered clinically important. The evidence strength was high to low according to the GRADE approach. More quantity and quality of clinical trials is needed to confirm our findings.

PROSPERO REGISTRATION

CRD42022364829.

Regional Anesthesia for Wrist Fractures and Dislocations: Are We Really Blocking Opioid Prescribing?

BACKGROUND

The aim of this study was to evaluate the impact of regional anesthesia for the treatment of wrist fractures or dislocation on opioid prescription-filling patterns.

METHODS

Patients undergoing surgery for hand and wrist fractures or dislocations from 2010 to 2018 were identified by using a national insurance claims database. Patients were stratified by procedures conducted with and without regional anesthesia. Preoperative opioids were defined by a filled opioid prescription within 1 month prior to surgery, postoperative within 1 month following the surgery, and prolonged postoperative 3 to 6 months following surgery. Patients' demographic data, comorbidities, additional medications, 30-day emergency department (ED) visits, and hospital readmissions were analyzed.

RESULTS

A total of 24 598 patients treated with and 115 199 patients treated without a regional nerve block for wrist fractures and dislocations were identified. Regional anesthesia was associated with greater postoperative opioid prescription but fewer prolonged postoperative prescriptions. There was an increased odds of all-cause 30-day ED visits but a decreased odds of 30-day hospital readmissions when patients received a regional nerve block prior to surgery.

CONCLUSIONS

In this study, receiving regional anesthesia prior to surgical intervention for wrist fractures or dislocations was associated with increased filling of postoperative opioid prescriptions, but not prolonged postoperative opioid prescriptions. Additional investigation is needed to identify and implement nonnarcotic multimodal analgesia regimens that may help decrease usage of narcotic medications surrounding these procedures.

LEVEL OF EVIDENCE

Level III, retrospective cohort study.

Reevaluating the Need for Antibiotic Prophylaxis in Adult Upper Extremity Surgery With Hardware

BACKGROUND

Although it is well established that antibiotic prophylaxis is not needed in soft tissue upper extremity cases, there is still no definitive consensus when hardware implantation is involved. We hypothesize that antibiotic prophylaxis is not necessary and there is no difference in postoperative surgical site infection rates regardless of preoperative antibiotic administration.

METHODS

A retrospective cohort analysis was performed on upper extremity surgical cases with hardware implantation performed at a single institution amongst 5 hand surgeons between November 2021 and November 2023. Implants included plates, screws, Kirschner wires, and suture anchors. Primary outcome measures were diagnosis of surgical site infection by 14 and 30 days postoperatively. Secondary outcomes included the type of management used to treat infection. Categorical variables were compared using Fisher exact test, and continuous variables were compared using Wilcoxon rank-sum test.

RESULTS

A total of 232 patients were included for analysis-152 received antibiotic prophylaxis and 80 did not. There were no differences between the 2 groups in terms of demographic factors, comorbidities, or smoking status. There was no difference in infection rates between the group who received antibiotic prophylaxis and the group who did not. Infection rate in the antibiotic prophylaxis group was 4.6% and in the sans antibiotics group was 2.5%. All infections were treated with antibiotics, and there were no differences in the rates of operative washout and hardware removal between the 2 groups.

CONCLUSIONS

Antibiotic prophylaxis is not necessary in upper extremity surgical cases even when implantation of hardware is involved.

Large Language Models in the Diagnosis of Hand and Peripheral Nerve Injuries: An Evaluation of ChatGPT and the Isabel Differential Diagnosis Generator

Purpose

Tools using artificial intelligence may help reduce missed or delayed diagnoses and improve patient care in hand surgery. This study aimed to compare and evaluate the performance of two natural language processing programs, Isabel and ChatGPT-4, in diagnosing hand and peripheral nerve injuries from a set of clinical vignettes.

Methods

Cases from a virtual library of hand surgery case reports with no history of trauma or previous surgery were included in this study. The clinical details (age, sex, symptoms, signs, and medical history) of 16 hand cases were entered into Isabel and ChatGPT-4 to generate top 10 differential diagnosis lists. Isabel and ChatGPT-4's inclusion and median rank of the correct diagnosis within each list were compared. Two hand surgeons were then provided each list and asked to independently evaluate the performance of the two systems.

Results

Isabel correctly identified 7/16 (44%) cases with a median rank of two (interquartile range = 3). ChatGPT-4 correctly identified 14/16 (88%) of cases with a median rank of one (interquartile range = 1). Physicians one and two, respectively, preferred the lists generated by ChatGPT-4 in 12/16 (75%) and 13/16 (81%) of cases and had no preference in 2/16 (13%) cases.

Conclusions

ChatGPT-4 had significantly greater diagnostic accuracy within our sample (P < .05) and generated higher quality differential diagnoses than Isabel. Isabel produced several inappropriate and imprecise differential diagnoses.

Clinical relevance

Despite large language models' potential utility in generating medical diagnoses, physicians must continue to exercise high caution and use their clinical judgment when making diagnostic decisions.

Digital Replantation In Hours Versus Out of Hours: A Retrospective Review of Outcomes

INTRODUCTION

The British Society for Surgery of the Hand's (BSSH) Getting It Right First Time (GIRFT) guidelines recommend that surgery for traumatic amputations of the digits is ideally performed during normal working hours even if this results in a delay of up to 24 hours.

OBJECTIVE

To compare current practice against the BSSH GIRFT guideline regarding the timing of digital replantation and to compare the success rate of replantation performed within working hours (same or next day) and outside of working hours.

MATERIALS AND METHODS

A single-centre retrospective analysis of two years of digital replantation was performed. A comparison was made between success rate of those operated within and outside of normal working hours. Secondary outcomes included operating time, rate of revision surgery, rate of interposition vein grafting, and the effect of the mechanism of injury on success rate.

RESULTS

A total of 32 digital replantation attempts were included in 21 patients. 71.9% of cases (n=23) were performed within normal working hours, demonstrating good compliance with GIRFT guidelines. The success rate of digital replantation attempts was 68.8% overall (n=22). The success rate of same day in hours replantation was 66.7% (n=6), 78.6% (n=11) for next day in hours replantation, and 55.6% (n=5) for digital replantation attempts made out of hours. Revision surgery was required in 28.13% of all replant attempts (n=9). 55.56% (n=5) of cases requiring revision were ultimately successful. The rate of vein graft use was highest in cases taking place same day in hours (75%; n=3) and lowest in cases same day out of hours (22% n=2). The average operating time per digit was 5.5 hours for same day in hours cases, 4.8 hours for next day in hours cases, and 7.1 hours for out of hours cases.

CONCLUSION

Digital replantation during normal working hours was associated with higher success rate although no statistically significant difference was observed between timing groups. Replantation during normal working hours was associated with shorter operating time per digit, and lower revision rate, although statistical testing was not performed.

Outcomes following replantation surgery

The ability to perform surgical replantation of individual digits and limbs can provide substantial functional improvement for patients who sustain devastating upper extremity injuries. Defining success in replantation surgery extends beyond the acute period and the binary metrics of survival or loss of the replanted part to include the long-term overall functional outcomes. Functional outcomes include both objective clinical evaluation and patient-reported outcomes. There has been significant variation in the way outcomes following replantation are measured, which inherently leads to heterogeneity in the reported outcome data. Given the variability among outcome measures, we aim to explore the outcomes of replantation surgery, particularly clinical evaluation and patient-reported functional outcomes following replantation.

Epidemiology of work-related hand and wrist injuries in a referral center: A descriptive study

BACKGROUND

Occupational hand and wrist injuries (OHWIs) account for 25% of work-related accidents in low- and middle-income countries. In Colombia, more than 500000 occupational accidents occurred in 2021, and although the rate declined to less than 5% in 2020 and 2021, at least one in four accidents involved a hand or wrist injury.

AIM

To describe the OHWIs in workers seen at the emergency room at a second-level hospital in Colombia.

METHODS

An observational study was performed using data from workers who experienced OHWIs and attended a second-level hospital, between June, 2020 and May, 2021. The overall frequency of OHWIs, as well as their distribution by sociodemographic, clinical, and occupational variables, are described. Furthermore, association patterns between sex, anatomical area (fingers, hand, wrist), and type of job were analyzed by correspondence analysis (CA).

RESULTS

There were 2.101 workers treated for occupational accidents, 423 (20.3%) were cases of OHWIs, which mainly affected men (93.9%) with a median age of 31 years and who worked mainly in mining (75.9%). OHWIs were more common in the right upper extremity (55.3%) and comprised different types of injuries, such as contusion (42.1%), laceration (27.9%), fracture (18.7%), and crush injury (15.6%). They primarily affected the phalanges (95.2%), especially those of the first finger (25.7%). The CAs showed associations between the injured anatomical area and the worker's job that differed in men and women (explained variance > 90%).

CONCLUSION

One out of five workers who suffered occupational accidents in Cundinamarca, Columbia had an OHWI, affecting mainly males employed in mining. This occupational profile is likely to lead to prolonged rehabilitation, and permanent functional limitations. Our results might be useful for adjusting preventive measures in cluster risk groups.

Kinematics of Single-Plane and Multiplanar Tasks in Adults with Asymptomatic and Symptomatic Wrists

Wrist symptoms are common in 10% of the population. The presence of symptoms, such as prior injury, instability, or pain, may lead to altered wrist mechanics, negatively affecting wrist function, mobility, and quality of life. Healthy wrist kinematics during daily tasks have been investigated, but few studies have compared asymptomatic and symptomatic wrist kinematics during multiplanar functional tasks and activities of daily living (ADLs). The purpose of this study was to quantify wrist kinematics during single-plane tasks, multiplanar functional tasks, and ADLs and compare them between two groups of adults with asymptomatic (ASYM) and symptomatic (SYM) wrists. Established motion capture techniques were applied to determine the wrist joint angles during each of the tasks. The Permutational Multivariate Analysis of Variation was used to compare the distribution among the wrist joint angle metrics between groups, and post-hoc Wilcoxon rank sum tests were used for further analyses. Several significant kinematic differences were found between the asymptomatic and symptomatic including maximal sagittal and coronal plane ROM, dart throwing motion, and eating tasks. We observed that the symptomatic group performed these tasks with a decreased range of motion compared to the asymptomatic group. An intriguing compensatory mechanism was observed during the dart throwing motion task where the SYM group showed increased coronal motion with reduced sagittal motion. This compensation has not yet been previously reported. These results identified significant differences in wrist biomechanics between groups with and without a history of wrist injury. This work suggests foundational motions and functional tasks necessary for daily life activities may be targeted for designing personalized rehabilitation approaches.

Demographic shifts reshaping the landscape of hand trauma: a comprehensive single-center analysis of changing trends in hand injuries from 2007 to 2022

INTRODUCTION

Hand injuries constitute up to 30% of the total cases treated in emergency departments. Over time, demographic changes, especially an aging population, and shifts in workplace safety regulations and healthcare policies have significantly impacted the landscape of hand trauma. This study aims to identify and analyze these evolving trends over nearly two decades.

METHODS

In this retrospective, cross-sectional study, we investigated patients who were admitted to the high-volume regional hand trauma center of a university hospital between January 2007 and December 2022. We analyzed trends in patients' demographics and annual alterations of injuries. For the comparative analysis, patients were divided into two groups based on the time of presentation: the early cohort (2007-2014) and the current cohort (2015-2022).

RESULTS

A total of 14,414 patients were admitted to our emergency department within the study period. A significant annual increase in patient age was identified (R2 = 0.254, p = 0.047). The number of presentations increased annually by an average of 2% (p < 0.001). The incidence of the following hand injuries significantly increased: sprains/strains (+ 70.51%, p = 0.004), superficial lacerations (+ 53.99%, p < 0.001), joint dislocations (+ 51.28%, p < 0.001), fractures (carpal: + 49.25%, p = 0.003; noncarpal: + 39.18%, p < 0.001), deep lacerations (+ 37.16%, p < 0.001) and burns and corrosions (+ 29.45%, p < 0.001). However, rates of amputations decreased significantly (- 22.09%, p = 0.04).

CONCLUSIONS

A consistent and significant annual increase in both the total number of injuries and the average age of patients was identified. An aging population may increase injury rates and comorbidities, stressing healthcare resources. Our study underscores the need to adapt healthcare structures and reimbursement policies, especially for outpatient hand injury care.

Enhancing Vascularized Composite Allograft Supercooling Preservation: A Multifaceted Approach with CPA Optimization, Thermal Tracking, and Stepwise Loading Techniques

Vascularized composite allografts (VCAs) present unique challenges in transplant medicine, owing to their complex structure and vulnerability to ischemic injury. Innovative preservation techniques are crucial for extending the viability of these grafts, from procurement to transplantation. This study addresses these challenges by integrating cryoprotectant agent (CPA) optimization, advanced thermal tracking, and stepwise CPA loading strategies within an ex vivo rodent model. CPA optimization focused on various combinations, identifying those that effectively suppress ice nucleation while mitigating cytotoxicity. Thermal dynamics were monitored using invasive thermocouples and non-invasive FLIR imaging, yielding detailed temperature profiles crucial for managing warm ischemia time and optimizing cooling rates. The efficacy of stepwise CPA loading versus conventional flush protocols demonstrated that stepwise (un)loading significantly improved arterial resistance and weight change outcomes. In summary, this study presents comprehensive advancements in VCA preservation strategies, combining CPA optimization, precise thermal monitoring, and stepwise loading techniques. These findings hold potential implications for refining transplantation protocols and improving graft viability in VCA transplantation.

What Patients Say About Their Orthopaedic Hand and Wrist Surgeons: A Qualitative Analysis of Negative Reviews on Yelp

Background  Patients often turn to online reviews as a source of information to inform their decisions regarding care. Existing literature has analyzed factors associated with positive online patient ratings among hand and wrist surgeons. However, there is limited in-depth analysis of factors associated with low patient satisfaction for hand and wrist surgeons. The focus of this study is to examine and characterize extremely negative reviews of hand and wrist surgeons on Yelp.com. Methods  A search was performed using the keywords "hand surgery" on Yelp.com for eight major metropolitan areas including Washington DC, Dallas, New York, Phoenix, Los Angeles, San Francisco, Boston, and Seattle. Only single-star reviews (out of a possible 5 stars) of hand and wrist surgeons were included. The complaints in the 1-star reviews were then categorized into clinical and nonclinical categories. Result  A total of 233 single-star reviews were included for analysis, which resulted in 468 total complaints. Of these complaints, 81 (18.8%) were clinically related and 351 (81.3%) were nonclinical in nature. The most common clinical complaints were for complication (24 complaints, 6%), misdiagnosis (16 complaints, 4%), unclear treatment plan (16 complaints, 4%), and uncontrolled pain (15 complaints, 3%). The most common nonclinical complaints were for physician bedside manner (93 complaints, 22%), financially related (80 complaints, 19%), unprofessional nonclinical staff (61 complaints, 14%), and wait time (46 complaints, 11%). The difference in the number of complaints for surgical and nonsurgical patients was statistically significant ( p  < 0.05) for complication and uncontrolled pain. Clinical Relevance  Patient satisfaction is dependent on a multitude of clinical and nonclinical factors. An awareness of online physician ratings is essential for hand and wrist surgeons to maintain and improve patient care and patient satisfaction. We believe the results of our study could be used to further improve the quality of care provided by hand and wrist surgeons.

The reliability and applicability of the Ten Test in hand injuries: A systematic review

Introduction

The Ten Test (TT) is a touch threshold test that quantifies sensory discrimination by comparing an injured area with a contralateral uninjured area. It's quick, simple, equipment-free and repeatable. However, as a subjective measure, the TT's reliability and applicability need further investigation. This review aimed to investigate if the TT has superior inter- and intra-examiner reliability compared to the widely accepted Weinstein Enhanced Sensory Test (WEST) in a human population of all ages.

Methods

A systematic search was conducted on major databases from January 1997 to September 2023 and adhered to the Preferred Reporting Items for Systematic Review and Meta-Analysis Protocol. Outcomes were assessed with a narrative approach. The included articles were critically appraised according to the Quality Assessment of Diagnostic Accuracy Studies two tool.

Results

This review included five articles. High inter-examiner reliability was demonstrated with intraclass correlation coefficient (ICC) values of 0.91 and 0.95, alongside a kappa statistic of 1, as reported by three distinct studies. Intra-examiner reliability displayed some variance, with one study reporting a significant ICC value in four out of six instances. Two studies corroborated that the TT results corresponded with the findings of WEST, each presenting a Spearman rank coefficient of -0.71.

Conclusion

Our findings underscore the TT's high inter-examiner reliability, though its intra-examiner reliability exhibited some inconsistencies. Interestingly, certain studies claimed its superiority over the WEST. To validate the TT's use in the clinical setting, more rigorous studies, particularly those comparing pre-operative TT outcomes with intraoperative nerve damage evaluations, are essential.

Global, regional, national trends of femur fracture and machine learning prediction: Comprehensive findings and questions from global burden of disease 1990-2019

Background

Femur fracture is a type of fracture with high disability and mortality. There is no comprehensive analysis and prediction of the global distribution of femur fractures, so we conducted this study.

Methods

Age-standardized incidence rate (ASIR), age-standardized prevalence rate (ASPR), and years living with disability (YLDs) of femur fractures (excluding femoral neck) were downloaded from the Global burden of disease database. Trend analysis was performed, and 6 time-series machine learning algorithms were applied to predict the global ASIR, ASPR, and YLDs.

Results

ASPR for femur fracture had been increasing in most countries worldwide from 1990 to 2019, with the highest in East Asia (AAPC = 1.25 95%Confidence Interval (1.2, 1.3)) and lowest in Central Latin America (AAPC = -0.74 95%CI (-0.81, -0.67)). However, ASIR showed a significant downward trend worldwide, with East Saharan Africa decreasing the most (AAPC = -4.04 95%CI (-5.56, -2.47)), and East Asia elevating the most (AAPC = 1.11 95%CI (0.87, 1.42)). YLDs were increasing over the world, with East Asia still elevating the most AAPC= (3.9 95%CI (3.85, 3.95)), with the only region of decrease being Eastern Europe (AAPC = -0.28 95%CI (-0.3, -0.26)). Both ASPR and ASIR were higher in women than in men in the >75 year group, whereas YLDs was lower in women than in men in the >60 year group. Globally, the ARIMA model was optimal in the prediction of ASPR, the PROPHET model effected in the prediction of ASIR, and the PROPHET WITH XGBOOST model was the best in the prediction of YLDs. The projections showed increase in both ASPR and YLDs, except for ASIR decreasing by 2030.

Conclusions

Our study found a rise in femur fracture ASPR and ASIR from 1990 to 2019 in war conflict areas and East Asia, meanwhile, the YLDs of femur fracture increased in populous countries. In both 1990 and 2019, both ASPR and ASIR were higher in women over 75 years than that in men, but YLDs was higher in men over 60 years than that in women. In 2020-2030, while global femur fracture ASIR might decline, both ASPR and YLDs might rise.

The Translational Potential of this article

Femur fracture is a high-energy injury due to direct violence, and in war, conflicting and underdeveloped regions such as East Asia. Accidental injuries may occur due to the rapid development of industry and the frequent traffic accidents. This study suggests that we should focus on elderly women (≥75 years) in the above regions in the future. For older men (>60 years old), more attention should be paid to post-fracture functional rehabilitation and early reintegration into society to reduce the disability rate and lower the socio-economic burden.

Development and external validation of a prediction model for digit replantation failure after traumatic amputations based on a prospective multicenter cohort

BACKGROUND

Failure of digit replantation after traumatic amputation is difficult to predict. The authors aimed to develop a prognostic model to better identify factors that better predict replantation failure following traumatic digit amputation.

MATERIALS AND METHODS

In this multicenter prospective cohort, the authors identified patients who had received digit replantation between 1 January 2015 and 1 January 2019. Univariable and multivariable analyses were performed successively to identify independently predictive factors for failure of replanted digit. To reduce overfitting, the Bayesian information criterion was used to reduce variables in the original model. Nomograms were created with the reduced model after model selection. This model was then internally validated with bootstrap resampling and further externally validated in validation cohort.

RESULTS

Digit replantation was failed in 101 of 1062 (9.5%) digits and 146 of 1156 digits (12.6%) in the training and validation cohorts, respectively. The authors found that six independent prognostic variables were associated with digit replantation failure: age, mechanism of injury, ischemia duration, smoking status, amputation pattern (complete or incomplete), and surgeon's experience. The prediction model achieved good discrimination, with concordance indexes of 0.81 (95% CI: 0.76-0.85) and 0.70 (95% CI: 0.65-0.74) in predicting digit failure in the training and validation cohorts, respectively. Calibration curves were well-fitted for both training and validation cohorts.

CONCLUSIONS

The proposed prediction model effectively predicted the failure rate of digit replantation for individual digits of all patients. It could assist in selecting the most suitable surgical plan for the patient.

Hand and Wrist trauma: Antimicrobials and Infection Audit of Clinical Practice (HAWAII ACP) protocol

Aims

Hand trauma, consisting of injuries to both the hand and the wrist, are a common injury seen worldwide. The global age-standardized incidence of hand trauma exceeds 179 per 100,000. Hand trauma may require surgical management and therefore result in significant costs to both healthcare systems and society. Surgical site infections (SSIs) are common following all surgical interventions, and within hand surgery the risk of SSI is at least 5%. SSI following hand trauma surgery results in significant costs to healthcare systems with estimations of over £450 per patient. The World Health Organization (WHO) have produced international guidelines to help prevent SSIs. However, it is unclear what variability exists in the adherence to these guidelines within hand trauma. The aim is to assess compliance to the WHO global guidelines in prevention of SSI in hand trauma.

Methods

This will be an international, multicentre audit comparing antimicrobial practices in hand trauma to the standards outlined by WHO. Through the Reconstructive Surgery Trials Network (RSTN), hand surgeons across the globe will be invited to participate in the study. Consultant surgeons/associate specialists managing hand trauma and members of the multidisciplinary team will be identified at participating sites. Teams will be asked to collect data prospectively on a minimum of 20 consecutive patients. The audit will run for eight months. Data collected will include injury details, initial management, hand trauma team management, operation details, postoperative care, and antimicrobial techniques used throughout. Adherence to WHO global guidelines for SSI will be summarized using descriptive statistics across each criteria.

Discussion

The Hand and Wrist trauma: Antimicrobials and Infection Audit of Clinical Practice (HAWAII ACP) will provide an understanding of the current antimicrobial practice in hand trauma surgery. This will then provide a basis to guide further research in the field. The findings of this study will be disseminated via conference presentations and a peer-reviewed publication.

Functional and clinical outcomes in the Krukenberg amputation

We evaluated the outcomes of the Krukenberg procedure conducted for the loss of a hand secondary to an electrical burn injury in six patients (10 hands). Patient demographics, indications for surgery, surgical strategy, complications, clinical measurements and Disabilities of the Arm, Shoulder and Hand (DASH) score were recorded, in addition to subjective outcome measures, including self-perception of social acceptance and employment status. The median DASH score at follow-up was 22 (range 4-50, interquartile range 25). Patients reported recovery of useful function in operated limbs. We recommend this procedure in low-resource settings when other reconstruction is impossible.Level evidence: IV.

A systematic analysis on global epidemiology and burden of foot fracture over three decades

PURPOSE

To comprehensively analyze the geographic and temporal trends of foot fracture, understand its health burden by age, sex, and sociodemographic index (SDI), and explore its leading causes from 1990 to 2019.

METHODS

The datasets in the present study were generated from the Global Burden of Diseases Study 2019, which included foot fracture data from 1990 to 2019. We extracted estimates along with the 95% uncertainty interval (UI) for the incidence and years lived with disability (YLDs) of foot fracture by location, age, gender, and cause. The epidemiology and burden of foot fracture at the global, regional, and national level was exhibited. Next, we presented the age and sex patterns of foot fracture. The leading cause of foot fracture was another focus of this study from the viewpoint of age, sex, and location. Then, Pearson's correlations between age-standardized rate (ASR), SDI, and estimated annual percentage change were calculated.

RESULTS

The age-standardized incidence rate was 138.68 (95% UI: 104.88 - 182.53) per 100,000 persons for both sexes, 174.24 (95% UI: 134.35 - 222.49) per 100,000 persons for males, and 102.19 (95% UI: 73.28 - 138.00) per 100,000 persons for females in 2019. The age-standardized YLDs rate was 5.91 (95% UI: 3.58 - 9.25) per 100,000 persons for both genders, 7.35 (95% UI: 4.45 - 11.50) per 100,000 persons for males, and 4.51 (95% UI: 2.75 - 7.03) per 100,000 persons for females in 2019. The global incidence and YLDs of foot fracture increased in number and decreased in ASR from 1990 to 2019. The global geographical distribution of foot fracture is uneven. The incidence rate for males peaked at the age group of 20 - 24 years, while that for females increased with advancing age. The incidence rate of older people was rising, as younger age incidence rate declined from 1990 to 2019. Falls, exposure to mechanical forces, and road traffic injuries were the 3 leading causes of foot fracture. Correlations were observed between ASR, estimated annual percentage change, and SDI.

CONCLUSIONS

The burden of foot fracture remains high globally, and it poses an enormous public health challenge, with population ageing. It is necessary to allocate more resources to the high-risk populations. Targeted realistic intervention policies and strategies are warranted.

HOW TO PREVENT HAND INJURIES - REVIEW OF EPIDEMIOLOGICAL DATA IS THE FIRST STEP IN HEALTH CARE MANAGEMENT

BACKGROUND

Hand injuries are common affecting all ages, genders, and geographic regions. They can result in long term disability and mortality, while they place a significant financial burden in society. Although, hand injuries can be prevented. Preventive strategies can be designed, but knowledge of injuries' epidemiological characteristics is required beforehand.

METHODS

We performed a review of the current literature related to hand injuries to identify their incidence, patients' demographics, type, mode, and time of the injury.

RESULTS

Hand injuries constitute 6.6% to 28.6% of all injuries presenting to the Emergency Department and 28% of injuries to the musculoskeletal system. They mainly affect young male labourers. Occupational and home accidents are the commonest injury modalities, while traffic road accidents constitute a significant reason for hand injuries as well. Lacerations account for most hand injuries, followed by crush injuries, fractures and amputations. Most occupational injuries occur in the beginning of the week and especially during the morning shift, while there has been identified an increase in the number of hand injuries during the summer months.

CONCLUSIONS

Hand injuries are an important health problem with impact on patient's life and on the society. Although they can be prevented. Preventive strategies need to be addressed towards many directions and people's activities, since prevention will have an important impact on people's quality of life and society's well-being.

Automated computation of radiographic parameters of distal radial metaphyseal fractures in forearm X-rays

PURPOSE

Radiographic parameters (RPs) provide objective support for effective decision making in determining clinical treatment of distal radius fractures (DRFs). This paper presents a novel automatic RP computation pipeline for computing the six anatomical RPs associated with DRFs in anteroposterior (AP) and lateral (LAT) forearm radiographs.

METHODS

The pipeline consists of: (1) segmentation of the distal radius and ulna bones with six 2D Dynamic U-Net deep learning models; (2) landmark points detection and distal radius axis computation from the segmentations with geometric methods; (3) RP computation and generation of a quantitative DRF report and composite AP and LAT radiograph images. This hybrid approach combines the advantages of deep learning and model-based methods.

RESULTS

The pipeline was evaluated on 90 AP and 93 LAT radiographs for which ground truth distal radius and ulna segmentations and RP landmarks were manually obtained by expert clinicians. It achieves an accuracy of 94 and 86% on the AP and LAT RPs, within the observer variability, and an RP measurement difference of 1.4 ± 1.2° for the radial angle, 0.5 ± 0.6 mm for the radial length, 0.9 ± 0.7 mm for the radial shift, 0.7 ± 0.5 mm for the ulnar variance, 2.9 ± 3.3° for the palmar tilt and 1.2 ± 1.0 mm for the dorsal shift.

CONCLUSION

Our pipeline is the first fully automatic method that accurately and robustly computes the RPs for a wide variety of clinical forearm radiographs from different sources, hand orientations, with and without cast. The computed accurate and reliable RF measurements may support fracture severity assessment and clinical management.

Upper Extremity Trauma in Costa Rica - Evaluating Epidemiology and Identifying Opportunities

Background

Traffic accidents and musculoskeletal injuries represent a major cause of morbidity and mortality in Costa Rica. To inform capacity building efforts, we conducted a survey study of hand and upper extremity (UE) fellowship-trained surgeons in Costa Rica to evaluate the epidemiology, complications, and challenges in care of UE trauma.

Methods

Aiming to capture all hand and UE trained surgeons in Costa Rica, we compiled a list of nine surgeons and sent a survey in Spanish using Qualtrics. Assessment questions were developed to understand the burden, complications, practice patterns, challenges, and capacity associated with care of UE trauma. Questions were designed to focus on opportunities for future investigation. Questions were translated and adapted by two bilingual speakers. Data were reported descriptively and open-ended responses were analyzed using content analysis.

Results

Nine (100%) surgeons completed the survey. Distal radius fractures, hand and finger fractures, and tendon injuries are the most frequently noted conditions. Stiffness and infection are the most common complications. About 29% of patients are unable to get necessary therapy and 13% do not return for follow-up care with monetary, distance, and transportation limitations being the greatest challenges.

Conclusions

The burden of UE trauma in Costa Rica is high. Identifying common conditions, complications, challenges, and capacity allows for a tailored approach to partnership and capacity building (e.g. directing capacity building and/or research infrastructure toward distal radius fractures). These insights represent opportunities to inform community-driven care improvement and research initiatives, such as Delphi consensus approaches to identify priorities or the development of outcome measurement systems.

Exploring the Prevalence of PTSD in Hand Trauma: A Comprehensive Study

Hand trauma is a common and debilitating condition that can have significant physical, functional, and psychological effects on individuals. This study used a case-control design to investigate the frequency and factors associated with symptoms of post-traumatic stress disorder (PTSD) in a sample of individuals with complex hand and forearm injuries. Our hypothesis suggests that demographic data, among other factors, influences the intensity of PTSD symptoms measured by the PCL-5 scale three months post-surgery. This study included 166 individuals, 142 males and 24 females, with an average age of 42.14 years (SD = 12.71). Our study found significant associations between symptoms of PTSD and various demographic and clinical factors. PTSD symptoms were observed in females, individuals from specific regions, and certain socio-professional groups. Furthermore, educational attainment and personal background have been identified as significant factors in the development of PTSD. The role of trauma type was crucial, amputees and fractures were more prone to developing PTSD. A strong link was found between increased symptoms of PTSD and negative postoperative outcomes, including amputation of necessity and the need for additional surgery. The absence of family support exacerbates the psychological distress of trauma survivors. The findings highlight the intricate nature of PTSD development and underscore the significance of a comprehensive postoperative treatment strategy encompassing psychological assessment and support.

RSTN COVID Hand: Hand trauma in the United Kingdom and Europe during the COVID-19 pandemic

The COVID-19 pandemic rapidly impacted the delivery of hand surgery services throughout the UK and Europe; from triage to treatment. Our aim was to assess the impact on management of common hand trauma injuries to inform future service delivery and research. The Reconstructive Surgery Trials Network led a service evaluation during the first wave of COVID-19 in 2020. Data was collected on hand injury management during the COVID-19 pandemic and was compared to the management clinicians would have delivered prior. Across 35 hand surgery units, 2540 patients with hand trauma were included. There was an increase of between 3% and 7% in non-operative management of injuries, apart from flexor tendon injuries where management remained unchanged. Cases triaged by a consultant doubled, with a 22% increase in the see-and-treat model. There was a move to operating in low-resource settings; a 13% increase in the use of minor operating theatres and 10% in clinic rooms. Use of WALANT, absorbable sutures, and remote follow-up also increased by 16%, 24%, and between 11% and 25%, respectively. The reported 30-day complication rate was 3.2%, with a surgical site infection rate of 1.8%. The pandemic led to rapid change in many aspects of hand trauma care. It was the impetus for increased out-of-theatre operating, use of local anaesthetic, and more non-operative management of injuries, without an increase in complication rate. Further research needs to assess the clinical and cost-effectiveness of these changes to ensure that COVID-19 is a catalyst for a modern, evidence-based, and environmentally sustainable delivery of hand trauma services.

Development of the Biomech-Wrist: A 3-DOF Exoskeleton for Rehabilitation and Training of Human Wrist

This work describes a three-degrees-of-freedom rehabilitation exoskeleton robot for wrist articulation movement: the Biomech-Wrist. The proposed development includes the design requirements based on the biomechanics and anthropometric features of the upper limb, the mechanical design, electronic instrumentation, software design, manufacturing, control algorithm implementation, and the experimental setup to validate the functionality of the system. The design requirements were set to achieve human wrist-like movements: ulnar-radial deviation, flexion-extension, and pronation-supination. Then, the mechanical design considers the human range of motion with proper torques, velocities, and geometry. The manufacturing consists of 3D-printed elements and tubular aluminum sections resulting in lightweight components with modifiable distances. The central aspect of the instrumentation is the actuation system consisting of three brushless motors and a microcontroller for the control implementation. The proposed device was evaluated by considering two control schemes to regulate the trajectory tracking on each joint. The first scheme was the conventional proportional-derivative controller, whereas the second was proposed as a first-order sliding mode. The results show that the Biomech-Wrist exoskeleton can perform trajectory tracking with high precision ( RMSEmax = 0.0556 rad) when implementing the sliding mode controller.

The causal relationship between autoimmune diseases and osteoporosis: a study based on Mendelian randomization

Objective

The relationship between different autoimmune diseases and bone mineral density (BMD) and fractures has been reported in epidemiological studies. This study aimed to explore the causal relationship between autoimmune diseases and BMD, falls, and fractures using Mendelian randomization (MR).

Methods

The instrumental variables were selected from the aggregated statistical data of these diseases from the largest genome-wide association study in Europe. Specifically, 12 common autoimmune diseases were selected as exposure. Outcome variables included BMD, falls, and fractures. Multiple analysis methods were utilized to comprehensively evaluate the causal relationship between autoimmune diseases and BMD, falls, and fractures. Additionally, sensitivity analyses, including Cochran's Q test, MR-Egger intercept test, and one analysis, were conducted to verify the result's reliability.

Results

Strong evidence was provided in the results of the negatively association of ulcerative colitis (UC) with forearm BMD. UC also had a negatively association with the total body BMD, while inflammatory bowel disease (IBD) depicted a negatively association with the total body BMD at the age of 45-60 years. Horizontal pleiotropy or heterogeneity was not detected through sensitivity analysis, indicating that the causal estimation was reliable.

Conclusion

This study shows a negative causal relationship between UC and forearm and total body BMD, and between IBD and total body BMD at the age of 45-60 years. These results should be considered in future research and when public health measures and osteoporosis prevention strategies are formulated.

The Effectiveness of Three-Dimensional Osteosynthesis Plates versus Conventional Plates for the Treatment of Skeletal Fractures: A Systematic Review and Meta-Analysis

PURPOSE

To assess the difference between preformed anatomically shaped osteosynthesis plates and patient-specific implants versus conventional flat plates for the treatment of skeletal fractures in terms of anatomical reduction, operation time, approach, patient outcomes, and complications.

MATERIAL AND METHODS

MEDLINE (1950 to February 2023), EMBASE (1966 to February 2023), and the Cochrane Central Register of Controlled Trials (inception to February 2023) databases were searched. Eligible studies were randomised clinical trials, prospective controlled clinical trials, and prospective and retrospective cohort studies (n ≥ 10). Inclusion criteria were studies reporting the outcomes of preformed anatomically shaped osteosynthesis plates and patient-specific implants versus conventional flat plates after treating skeletal fractures. Outcome measures included anatomical reduction, stability, operation time, hospitalisation days, patients' outcomes, and complications. Two independent reviewers assessed the abstracts and analysed the complete texts and methodologies of the included studies.

RESULTS

In total, 21 out of the 5181 primarily selected articles matched the inclusion criteria. A meta-analysis revealed a significant difference in operation time in favour of the preformed anatomical plates and patient-specific implants versus conventional plates. Significant differences in operation time were found for the orbital (95% CI: -50.70-7.49, p = 0.008), upper limb (95% CI: -17.91-6.13, p < 0.0001), and lower limb extremity groups (95% CI: -20.40-15.11, p < 0.00001). The mean difference in the rate of anatomical reduction in the lower limb extremity group (95% CI: 1.04-7.62, p = 0.04) was also in favour of using preformed anatomical plates and patient-specific implants versus conventional plates.

CONCLUSIONS

This systematic review showed a significant mean difference in surgery time favouring the use of preformed anatomical plates and patient-specific implants for orbital, upper, and lower limb extremity fractures. Additionally, preformed anatomical plates and patient-specific implants in the lower limb group result in a significantly higher rate of anatomical reduction versus conventional flat plates.

Temporal Trend and Research Focus of Injury Burden from 1998 to 2022: A Bibliometric Analysis

Background

Injury is one of the leading causes of mortality and disability worldwide. It is a major contributor to the overall burden of disease. This study aimed to analyze the temporal trend, research focus and future direction of research related to injury burden.

Methods

Publications on injury burden published between January 1998 and September 2022 were extracted from the Web of Science Core Collection (WoSCC) through topic advanced search strategy. Microsoft Excel, RStudio, VOSviewer, and CiteSpace were used to extract, integrate, and visualize bibliometric information.

Results

A total of 2916 articles and 783 reviews were identified. The number of publications on injury burden showed a steady upward trend. The United States of America (USA) (n=1628) and the University of Washington (n=1036) were the most productive country and institution. High-income countries started research in this domain earlier, while research in low- and middle-income countries began in recent years. Lancet was the most influential journal. Public, environmental occupational health, general medicine and neurology were the predominant research domains. Based on keyword co-occurrence analysis, the research focus was divided into five clusters: injury epidemiology and prevention, studies related to the global burden of disease (GBD), risk factors for injury, clinical management of injury, and injury outcome assessment and economic burden.

Conclusion

The burden of injury has drawn increasing attention from various perspectives over the years. The research field on injury burden is also becoming more and more extensive. However, there are some gaps among different countries or regions, and more attention needs to be paid to low and middle-income countries.

Cost Analysis of Intramedullary Screw versus Plate Osteosynthesis for Phalangeal and Metacarpal Fractures: An Observational Study

Background: To compare the observed healthcare and societal costs of intramedullary screw (IMS) and plate fixation of extra-articular metacarpal and phalangeal fractures in a contemporary Australian context. Methods: A retrospective analysis, based on previously published data, was performed utilising information from Australian public and private hospitals, the Medicare Benefits Schedule (MBS) and the Australian Bureau of Statistics. Results: Plate fixation demonstrated longer surgical lengths (32 minutes, compared to 25 minutes), greater hardware costs (AUD 1,088 vs. AUD 355), more extended follow-up requirements (6.3 months, compared to 5 months) and higher rates of subsequent hardware removal (24% compared to 4.6%), resulting in an increased healthcare expenditure of AUD 1,519.41 in the public system, and AUD 1,698.59 in the private sector. Wage losses were estimated at AUD 15,515.78 when the fracture cohort is fixed by a plate, and AUD 13,542.43 when using an IMS - a differential of AUD 1,973.35. Conclusions: There is a substantial saving to both the health system and the patient when using IMS fixation over dorsal plating for the fixation of extra-articular metacarpal and phalangeal fractures. Level of Evidence: Level III (Cost Utility).

Clinical Validation of an Artificial Intelligence Model for Detecting Distal Radius, Ulnar Styloid, and Scaphoid Fractures on Conventional Wrist Radiographs

This study aimed to assess the feasibility and performance of an artificial intelligence (AI) model for detecting three common wrist fractures: distal radius, ulnar styloid process, and scaphoid. The AI model was trained with a dataset of 4432 images containing both fractured and non-fractured wrist images. In total, 593 subjects were included in the clinical test. Two human experts independently diagnosed and labeled the fracture sites using bounding boxes to build the ground truth. Two novice radiologists also performed the same task, both with and without model assistance. The sensitivity, specificity, accuracy, and area under the curve (AUC) were calculated for each wrist location. The AUC for detecting distal radius, ulnar styloid, and scaphoid fractures per wrist were 0.903 (95% C.I. 0.887-0.918), 0.925 (95% C.I. 0.911-0.939), and 0.808 (95% C.I. 0.748-0.967), respectively. When assisted by the AI model, the scaphoid fracture AUC of the two novice radiologists significantly increased from 0.75 (95% C.I. 0.66-0.83) to 0.85 (95% C.I. 0.77-0.93) and from 0.71 (95% C.I. 0.62-0.80) to 0.80 (95% C.I. 0.71-0.88), respectively. Overall, the developed AI model was found to be reliable for detecting wrist fractures, particularly for scaphoid fractures, which are commonly missed.

The Role of Intravenous Heparin Following Digital Replantation: A Retrospective Cohort Study on 1,155 Digits

PURPOSE

The purpose of this study was to determine if the use of postoperative therapeutic dose intravenous heparin (POTDIVH) was indicated in digital replantation and revascularization by assessing digit survival and complications associated with heparin.

METHODS

All patients with amputation distal to the carpal tunnel treated at our center from 2004 to 2020 were included for chart review. Digit survival and complication rates were compared between patients who received POTDIVH (group A) and those who did not (group B). Logistic regression analysis and subgroup analysis were conducted.

RESULTS

A total of 795 patients (1,155 digits) were included in this study (248 patients/374 digits in group A and 547 patients/781 digits in group B). The overall revascularization and replantation success rate was 79.9% in the POTDIVH group and 92.8% in the non-POTDIVH group. In our retrospective regression and subgroup analyses, group A demonstrated increased odds of failure compared with group B and was associated with increased bleeding-related complications. Subgroup analyses stratified by the mechanism of injury and vein grafting also showed a significantly decreased survival in the POTDIVH group.

CONCLUSIONS

Our retrospective data seem to indicate that heparin in digit replantation and revascularization appears to have no benefit on digit survival across all subgroups, including crush and avulsion injuries, and is associated with a significantly increased rate of complications.

TYPE OF STUDY/LEVEL OF EVIDENCE

Therapeutic IV.

Longitudinal Association Among Illness Perceptions, Coping, and Quality of Life After Extremity Injury

This longitudinal cohort study examined changes in illness perceptions, coping strategies, and quality of life in hospitalized participants who had sustained extremity injuries, and examined the associations among these changes. A sample of 138 patients with extremity injuries was recruited between August 2019 and April 2020 from the trauma units of two similar referral medical centers, each with a capacity of over 200 beds in Surabaya City, Indonesia. Outcome measures were assessed prior to hospital discharge and 3 months post-discharge, including the Brief Illness Perception Questionnaire, the Brief Coping Orientation to Problems Experienced, and the World Health Organization Quality of Life. Hierarchical multiple regression analyses were conducted. We found that lower scores for illness perceptions (i.e., how a participant appraised and understood their medical condition and its possible consequences) and maladaptive coping strategies were significantly associated with lower quality of life scores. In addition, scores for adaptive coping strategies moderated the association between illness perceptions and quality of life. Our findings suggest that clinicians should endeavor to improve patients' illness perceptions and adaptive coping strategies during the first 3 months post-injury to promote improvement in quality of life following extremity injury.

A Systematic Review and Meta-Analysis of the Relationship between Receiving the Flu Vaccine with Acute Cerebrovascular Accident and Its Hospitalization in the Elderly

Background and Aims

In recent years, various studies have been conducted worldwide to investigate the relationship between receiving the flu vaccine with acute cerebrovascular accident or stroke and its hospitalization in the elderly; however, the results of these studies are contradictory. Therefore, this study was aimed at investigating the relationship between receiving the flu vaccine with stroke and its hospitalization in the elderly.

Methods

This study is a systematic review and meta-analysis of studies examining the relationship between receiving the flu vaccine with stroke and its hospitalization in the elderly during the years 1980 to 2021 which have been published in ISI Web of Science, Scopus PubMed, Cochrane, Science Direct, Google Scholar, and Embase. All analyses were performed by Stata 15, and the significance level in this study was considered <0.05.

Results

In the systematic search, 3088 articles were retrieved, considering the study criteria; finally, 14 studies were included in the meta-analysis. Based on the results of the meta-analysis, the odds ratio (OR) of occurrence and hospitalization of stroke compared to the nonvaccinated group in vaccine recipients is equal to 0.84 (95% confidence interval (CI): 0.78-0.90, P value ≤ 0.001). Publication bias was not observed in this study (P value = 0.101).

Conclusion

Getting the flu vaccine can reduce the risk of occurrence and hospitalization of stroke in the elderly by 16% (10%-22%). Therefore, receiving this vaccine as a preventive intervention for stroke in the elderly may be promising.

Digit Replantation Practice: A Comparison of Three Rat Models

Digit replantation is a complex surgery that nearly always needs to be done as an emergency. As such it is often difficult to teach. Several models have been developed to train surgeons in this procedure. We compare three rat models of replantation with the aim of ascertaining which most simulates the digit replantation. Inbred albino rats were selected and divided into three groups of 13 each, tail, penile, and hind replant groups. Three rats in each group were anesthetized, the specific amputation injury is created and is replanted for the anatomic component of the study. For the comparative section, 10 animals were anesthesized and the amputated parts were replanted under standard conditions. The parameters measured included weight, vessels and nerve diameters, method of fixation, total ischemia and replant times, the patency rates (after operation and at one week post surgery), as well as postoperative complications. All rats survived in the procedure. There was patency in all groups immediately. Rat tail group had 90%, penile group 100%, and hind limb group 90% survival 1 week after the replantation. There was one mortality in the hind limb group. The penile replant group was the shortest ( p  < 0.001), and all vessel sizes were comparable except the central artery of the tail which was significantly smaller ( p  < 0.001). The processes of the hind limb group most simulated the human digit replant procedure, though the ischemia and total replant times are significantly longer ( p  < 0.005). Though the immediate and 1 week patency rates were similar in all three groups, the hind limb replantation model involved steps most similar to human digit replant surgery and is recommended as the preferred teaching model.

Patient-centered management strategy for concurrent musculoskeletal complaints in elbows, shoulders, and neck after an isolated hand/forearm complaint: A prospective interventional study

The aim was to evaluate patient-reported outcomes before and after a patient-centered management strategy targeting concurrent proximal musculoskeletal complaints (MSCs) in patients with an isolated hand/forearm complaint. A prospective interventional study included 66 patients. Intervention targeting concurrent MSCs was implemented as a patient-centered add-on to standard treatment for primary hand/forearm complaints. The patient-centered management strategy included patient education, individualized exercises, and manual therapy. Patient-reported outcome measures and pain questionnaires regarding the location, frequency, and intensity of pain in hands, elbows, shoulders, and neck were collected at baseline, after the last session of the patient-centered management strategy, and at 3-month follow-up. There were significant improvements in all patient-reported outcomes between baseline and follow-up. DASH scores improved significantly, by 17-29 points on the 3 subscales. There was a significant improvement of 6 points in PCS, 2 points in HADS, and 0.051 points in EQ-5D index. Median pain intensity on NRS decreased from 6 (4-8) to 5 (2.5-7) in hands, 3 (0-6) to 0 (0-3) in elbows, 5 (2-7) to 2.5 (0-5) in shoulders, and 3 (0-6) to 2 (0-3) in the neck, between baseline and discharge. Patients reporting concurrent MSCs in the elbow, shoulder, and neck after an isolated hand/forearm complaint may benefit from patient-centered management comprising patient education, individualized exercises, and manual therapy targeting pain and functional deficits in the upper-limb and neck. LEVEL OF EVIDENCE: IV.

A novel sensor-embedded holding device for monitoring upper extremity functions

There are several causes that can lead to functional weakness in the hands or upper extremities (UE), such as stroke, trauma, or aging. Therefore, evaluation and monitoring of UE rehabilitation have become essential. However, most traditional evaluation tools (TETs) and assessments require clinicians to assist or are limited to specific clinical settings. Several novel assessments might apply to wearable devices, yet those devices will still need clinicians or caretakers to help with further tests. Thus, a novel UE assessment device that is user-friendly and requires minimal assistance would be needed. The cylindrical grasp is one of the common UE movements performed in daily life. Therefore, a cylindrical sensor-embedded holding device (SEHD) for training and monitoring was developed for a usability test within this research. The SEHD has 14 force sensors with an array designed to fit holding positions and a six-axis inertial measurement unit (IMU) to monitor grip strength, hand dexterity, acceleration, and angular velocity. Six young adults, six healthy elderly participants, and three stroke survivors had participated in this study to see if the SEHD could be used as a reference to TETs. During result analyses, where the correlation coefficient analyses were applied, forearm rotation smoothness and the Purdue Pegboard Test (PPT) showed a moderate negative correlation [r (16) = −0.724, p < 0.01], and the finger independence showed a moderate negative correlation with the PPT [r (10) = −0.615, p < 0.05]. There was also a highly positive correlation between the maximum pressing task and Jamar dynamometer in maximum grip strength [r (16) = 0.821, p < 0.01]. These outcomes suggest that the SEHD with simple movements could be applied as a reference for users to monitor their UE ability.

Distal radius fractures and risk of incident neurocognitive disorders in older adults: a retrospective cohort study

INTRODUCTION

Distal radius fractures (DRF) are associated with increased risk of subsequent fractures and physical decline in older adults. This study aims to evaluate the risk cognitive decline following DRF and potential for timely screening and intervention.

METHODS

A cohort of 1046 individuals 50-75 years of age with DRF were identified between 1995 and 2015 (81.5% female; mean age 62.5 [± 7.1] years). A control group (N = 1044) without history of DRF was matched by age, sex, and fracture date (i.e., index). The incidence of neurocognitive disorders (NCD) in relation to DRF/index was determined. Group comparisons were adjusted by age and comorbidity measured by the Elixhauser index.

RESULTS

The DRF group had a greater incidence of NCD compared to the control group (11.3% vs. 8.2%) with a 56% greater relative risk (HR = 1.56, 95% Cl: 1.18, 2.07; p = 0.002) after adjusting for age and comorbidity. For every 10-year age increase, the DRF group was over three times more likely to develop a NCD (HR = 3.23, 95% Cl: 2.57, 4.04; p < 0.001).

CONCLUSION

DRF in adults ages 50 to 75 are associated with increased risk of developing neurocognitive disorders. DRF may represent a sentinel opportunity for cognitive screening and early intervention. Distal radius fractures (DRF) have been associated with greater risk of future fractures and physical decline. This study reports that DRF are also associated with greater risk of developing neurocognitive disorders in older adults. Timely intervention may improve early recognition and long-term outcomes for older adults at risk of cognitive decline.

Great Toe Transplantation

Despite being relatively uncommon in the general population, thumb amputations cause severe disability. More than 3,300 thumb amputations occurred in the United States. The thumb makes up around 40% of the function of the hand. Therefore, losing it would result in significant medical, hospital, and societal costs. Thumb reconstruction surgery's primary goal is to restore grip strength, including the range of motion, fine and tripod pinch, power grasp, strength, and sensibility, while secondary goals include restoring hand aesthetics. In cases of thumb replantation, like-for-like replacement is possible; however, when thumb replantation is not possible, great toe-to-hand transplantation is the best available reconstruction. When compared with other reconstructive options such as osteoplastic thumb reconstruction, pollicization, second toe transplantation, and the use of a thumb prosthesis, great toe transplantation provides superior function and aesthetics. For restoring pinch, sensitivity, strength, and aesthetics of the hand with well-tolerated donor site morbidity, toe to thumb transplantation is regarded as the gold standard.

Biophysical Stimulation in Delayed Fracture Healing of Hand Phalanx: A Radiographic Evaluation

Phalangeal fractures are common events among the upper limbs accounting for 10% of all human body fractures. Fracture complete healing process may persevere several months or years. Most phalangeal fractures present favorable union within 3 to 6 weeks. In the literature, biophysical stimulation has yielded favorable outcomes in the treatment of hand fractures. A survey involving hospitals in the US reported the use of biophysical stimulation (72%) in relation to nonhealing fractures at three months after trauma. A noninvasive procedure such as biophysical stimulation may be preferential prior to consideration of invasive procedures. In this retrospective study, we analyzed 80 phalangeal fractures, 43 of which did not show any radiographic sign of healing 30 days after surgery; on radiograms, we calculated radiographic data and the total active motion (TAM) for clinical comparison. All radiographic images were evaluated using Adobe Photoshop CS3 (version 10.0, Adobe Systems Inc., San Jose, CA, USA). We calculated the index of relative bone healing each month after surgery starting from 30 days, which was considered as T1, and followed up for a total of 6 months after stimulation (T6) with better results in stimulated groups. We concluded that prompt administration of biophysical stimulation supports fracture healing and yields an important improvement in the union rate compared with nontreatment. Above all, our patients experienced less injury-related distress between the fracture and repair period, which consequently reduced immobilization time, envisaging an early rehabilitation interval, with a better patient hand outcome.

Hand Surgery Outreach-From Short-Term "Missions" to Capacity Building

Although great advancements have been made in global health over the past decades, progress has not been equivalent across the world. For example, the surgical burden (number of surgical cases per capita) remains highest in low- and middle-income countries (LMICs-a term used by The World Bank to classify countries on the basis of their gross national income), where there are frequently fewer surgeons per capita. Surgical outreach is on the rise, with the United States sponsoring more than 2,000 trips annually to LMICs to help address the mismatch in per capita surgical cases to per capita surgeons. These trips, however, are typically short-term in nature and effect and can have unintended consequences. In contrast, capacity building focuses on bidirectional partnerships to educate and empower individuals and organizations such that their care for the local community is enhanced. Capacity building is a priority of leading organizations (including the World Health Organization) but has often been absent in orthopedic and hand surgery outreach. We detail the evidence supporting the transition from short-term mission-based trips to that of capacity building, what we can learn from other specialties about capacity building, and how we can measure and build capacity to improve health in LMICs using our partnership with Costa Rican hand and upper-extremity surgeons as an example.

Methodological considerations in injury burden of disease studies across Europe: a systematic literature review

Background

Calculating the disease burden due to injury is complex, as it requires many methodological choices. Until now, an overview of the methodological design choices that have been made in burden of disease (BoD) studies in injury populations is not available. The aim of this systematic literature review was to identify existing injury BoD studies undertaken across Europe and to comprehensively review the methodological design choices and assumption parameters that have been made to calculate years of life lost (YLL) and years lived with disability (YLD) in these studies.

Methods

We searched EMBASE, MEDLINE, Cochrane Central, Google Scholar, and Web of Science, and the grey literature supplemented by handsearching, for BoD studies. We included injury BoD studies that quantified the BoD expressed in YLL, YLD, and disability-adjusted life years (DALY) in countries within the European Region between early-1990 and mid-2021.

Results

We retrieved 2,914 results of which 48 performed an injury-specific BoD assessment. Single-country independent and Global Burden of Disease (GBD)-linked injury BoD studies were performed in 11 European countries. Approximately 79% of injury BoD studies reported the BoD by external cause-of-injury. Most independent studies used the incidence-based approach to calculate YLDs. About half of the injury disease burden studies applied disability weights (DWs) developed by the GBD study. Almost all independent injury studies have determined YLL using national life tables.

Conclusions

Considerable methodological variation across independent injury BoD assessments was observed; differences were mainly apparent in the design choices and assumption parameters towards injury YLD calculations, implementation of DWs, and the choice of life table for YLL calculations. Development and use of guidelines for performing and reporting of injury BoD studies is crucial to enhance transparency and comparability of injury BoD estimates across Europe and beyond.

Supplementary Information

The online version contains supplementary material available at 10.1186/s12889-022-13925-z.

Osseointegrated Metallic Implants for Finger Amputees: A Review of the Literature

Digital trauma amputations and digital agenesis strongly affect the functionality and aesthetic appearance of the hand. Autologous reconstruction is the gold standard of treatment. Unfortunately, microsurgical options and transplantation procedures are not possible for patients who present contraindications or refuse to undergo transplantation from the toe (e.g. toe‐to‐thumb transplantation). To address these issues, osseointegrated finger prostheses are a promising alternative. The functional assessments registered during follow‐up confirmed the promising outcomes of osseointegrated prostheses in the treatment of hand finger amputees. This review outlines (a) a detailed analysis of osseointegrated finger metallic components of the implants, (b) the surgical procedures suggested in the literature, and (c) the functional assessments and promising outcomes that demonstrate the potential of these medical osseointegrated devices in the treatment of finger amputees.

Effects of Mirror Neurons-Based Rehabilitation Techniques in Hand Injuries: A Systematic Review and Meta-Analysis

Background: Hand trauma requires specific rehabilitation protocol depending on the different structures involved. According to type of surgical intervention, and for monitoring pain and edema, post-operative rehabilitation of a hand that has experienced trauma involves different timings for immobilization. Several protocols have been used to reduce immobilization time, and various techniques and methods are adopted, depending on the structures involved. Objective: To measure the effects of mirror neurons-based rehabilitation techniques in hand injuries throughout a systematic review and meta-analysis. Methods: The protocol was accepted in PROSPERO database. A literature search was conducted in Cinahl, Scopus, Medline, PEDro, OTseeker. Two authors independently identified eligible studies, based on predefined inclusion criteria, and extracted the data. RCT quality was assessed using the JADAD scale. Results: Seventy-nine suitable studies were screened, and only eleven were included for qualitative synthesis, while four studies were selected for quantitative analysis. Four studies were case reports/series, and seven were RCTs. Nine investigate the effect of Mirror Therapy and two the effect of Motor Imagery. Quantitative analyses revealed Mirror Therapy as effective for hand function recovery (mean difference = −14.80 95% Confidence Interval (CI) = −17.22, −12.38) (p < 0.00001) in the short term, as well as in long follow-up groups (mean difference = −13.11 95% Confidence Interval (CI) = −17.53, −8.69) (p < 0.00001). Clinical, but not statistical, efficacy was found for manual dexterity (p = 0.15), while no benefit was reported for range of motion. Conclusions: Mirror neurons-based rehabilitation techniques, combined with conventional occupational and physical therapy, can be a useful approach in hand trauma. Mirror therapy seems to be effective for hand function recovery, but, for motor imagery and action observation, there is not sufficient evidence to recommend its use. Further research on the efficacy of the mirror neurons-based technique in hand injury is recommended.

A Grip Strength Estimation Method Using a Novel Flexible Sensor under Different Wrist Angles

It is a considerable challenge to realize the accurate, continuous detection of handgrip strength due to its complexity and uncertainty. To address this issue, a novel grip strength estimation method oriented toward the multi-wrist angle based on the development of a flexible deformation sensor is proposed. The flexible deformation sensor consists of a foaming sponge, a Hall sensor, an LED, and photoresistors (PRs), which can measure the deformation of muscles with grip strength. When the external deformation squeezes the foaming sponge, its density and light intensity change, which is detected by a light-sensitive resistor. The light-sensitive resistor extended to the internal foaming sponge with illuminance complies with the extrusion of muscle deformation to enable relative muscle deformation measurement. Furthermore, to achieve the speed, accuracy, and continuous detection of grip strength with different wrist angles, a new grip strength-arm muscle model is adopted and a one-dimensional convolutional neural network based on the dynamic window is proposed to recognize wrist joints. Finally, all the experimental results demonstrate that our proposed flexible deformation sensor can accurately detect the muscle deformation of the arm, and the designed muscle model and convolutional neural network can continuously predict hand grip at different wrist angles in real-time.

Medico-legal risks associated to hand and wrist trauma

BACKGROUND

Acute hand and wrist injuries are common and may lead to long-term disability if not managed adequately. Claims for negligence have been increasing in medical practice over the past few decades, with hand and wrist injuries and their treatment representing a significant percentage of orthopedic surgery lawsuits. There is no available literature regarding medical malpractice claims in hand and wrist injuries and surgery in Greece.

AIM

To identify claims related to hand and wrist trauma and surgery and to define the reasons of successful litigations.

METHODS

We performed a retrospective study of all legal claims of negligence for hand and upper extremity surgery that went to a trial, attributed to all surgical specialties, in Greece for a 20-year period. Data was further analyzed to identify claims related to hand and wrist trauma and surgery.

RESULTS

There were six malpractice claims related to hand and wrist trauma that ended in a trial. A missed diagnosis, which resulted in failure of initial management of the injury, was the main reason for a claim. Three of the six cases resulted in complete or partial loss of a finger. Two cases are still open, requiring an expert witness's report, two cases were closed in favor of the defendant, and two cases were closed in favor of the plaintiff with a mean compensation of €2000 (€1000-€3000).

CONCLUSION

Missed diagnosis was the main reason for a malpractice claim. Better understanding of factors leading to successful claims will help surgeons improve their practice to minimize legal implications and litigation.

Chlorhexidine versus povidone-iodine skin antisepsis before upper limb surgery (CIPHUR): an international multicentre prospective cohort study

Introduction

Surgical site infection (SSI) is the most common and costly complication of surgery. International guidelines recommend topical alcoholic chlorhexidine (CHX) before surgery. However, upper limb surgeons continue to use other antiseptics, citing a lack of applicable evidence, and concerns related to open wounds and tourniquets. This study aimed to evaluate the safety and effectiveness of different topical antiseptics before upper limb surgery.

Methods

This international multicentre prospective cohort study recruited consecutive adults and children who underwent surgery distal to the shoulder joint. The intervention was use of CHX or povidone–iodine (PVI) antiseptics in either aqueous or alcoholic form. The primary outcome was SSI within 90 days. Mixed-effects time-to-event models were used to estimate the risk (hazard ratio (HR)) of SSI for patients undergoing elective and emergency upper limb surgery.

Results

A total of 2454 patients were included. The overall risk of SSI was 3.5 per cent. For elective upper limb surgery (1018 patients), alcoholic CHX appeared to be the most effective antiseptic, reducing the risk of SSI by 70 per cent (adjusted HR 0.30, 95 per cent c.i. 0.11 to 0.84), when compared with aqueous PVI. Concerning emergency upper limb surgery (1436 patients), aqueous PVI appeared to be the least effective antiseptic for preventing SSI; however, there was uncertainty in the estimates. No adverse events were reported.

Conclusion

The findings align with the global evidence base and international guidance, suggesting that alcoholic CHX should be used for skin antisepsis before clean (elective upper limb) surgery. For emergency (contaminated or dirty) upper limb surgery, the findings of this study were unclear and contradict the available evidence, concluding that further research is necessary.

Randomised controlled prospective study of the use of adhesive elastic tape for the control of hand oedema in patients with a wrist fracture treated in a cast: a study protocol

BACKGROUND

Wrist fractures are a common occurrence, affecting patients of all ages. Wrist fracture patients often develop oedema and the presence of a cast increases the risk. The use of adhesive elastic tape is indicated for oedema control, but there is no definitive evidence of its effectiveness. This study aims to evaluate the effectiveness of the tape in control of hand oedema in wrist fracture patients with a forearm cast.

METHODS

We present a study protocol for a randomised controlled trial with blinded data processing. We will apply the tape to the intervention group after cast application, while the control group will receive the standard treatment. We will evaluate the circumference difference between baseline (T0) and the 7-day follow-up (T1) of both the thumb and of the other 4 fingers merged together. We will collect data regarding re-attendance to the Orthopedic Emergency Room due to "intolerance to the plaster cast". Sample size calculations resulted in a required total of 220 participants (110 per group). Ethical approval for the study has been obtained.

DISCUSSION

We aim to demonstrate that the use of tape improves the tolerability of the cast by reducing the oedema formation, the feeling of constriction and pain.

TRIAL REGISTRATION

ClinicalTrial.gov Identifier: NCT04683887.