Avascular Necrosis of the Metacarpal Head: A Review of 4 Cases.

PURPOSE: To report on 4 cases of avascular necrosis of the metacarpal head. METHODS: We retrospectively reviewed 4 patients who received a diagnosis of avascular necrosis of the metacarpal head and were treated from 2000 to 2016. RESULTS: All patients were males with involvement of the dominant hand. Three patients had a history of trauma and/or fractures in another finger and one had a history of fracture in the same finger. The diagnosis was confirmed on regular x-rays and magnetic resonance imaging. Nonsurgical management was offered to all patients (rest, placement of an orthosis, and nonsteroidal anti-inflammatory drugs) for 3 to 6 months. Two patients responded well to nonsurgical management and improved in their symptoms. One patient refused surgical intervention and continued to have persistent pain. The other patient was treated with curettage and bone graft and had total resolution of pain symptoms with full active range of motion. CONCLUSIONS: A high index of suspicion is required to diagnose and treat avascular necrosis of the metacarpal head correctly. Treatment options are numerous and require further studies to investigate their effectiveness in the treatment of this rare disease. TYPE OF STUDY/LEVEL OF EVIDENCE: Therapeutic V.

Prevalence of and Factors Associated With Major Depression in Patients With Upper Extremity Conditions.

PURPOSE: To determine the prevalence of an estimated diagnosis of major depression in patients with upper extremity conditions and factors that help identify patients who might benefit from psychological treatment. METHODS: In this observational cross-sectional study, 190 patients completed questionnaires measuring symptoms of depression with the Patient Health Questionnaire, upper extremity disability with the Patient-Reported Outcomes Measurement Information System Upper Extremity, pain interference with the Patient-Reported Outcomes Measurement Information System Pain Interference, and health anxiety with the Short Health Anxiety Inventory. RESULTS: The estimated prevalence of an estimated diagnosis of major depression (Patient Health Questionnaire 9 ≥ 10) among this group of patients was 12%. Having multiple pain conditions, a history of depression, and greater limitation from pain for daily activities were independently associated with an estimated diagnosis of major depression. CONCLUSIONS: The finding that 1 in 8 patients presenting to a hand surgeon have untreated or undertreated symptoms of depression sufficient to qualify for an estimated diagnosis of major depression emphasizes the importance of assessing for depression at all levels of care.

Patient Satisfaction and its Relation to Perceived Visit Duration With a Hand Surgeon.

PURPOSE: To determine whether patient perception of time spent with a hand surgeon relates to patient satisfaction after a single new-patient office visit. METHODS: Prior to each visit, 112 consecutive new patients predicted how much time they expected to spend with the surgeon. Following the visit, patients were asked to estimate the time spent with the surgeon, indicate whether the surgeon appeared rushed, and rate their overall satisfaction with the surgeon. Wait time and actual visit duration were measured. Patients also completed a sociodemographic survey, the Consultation and Relational Empathy Measure, the Newest Vital Sign Health Literacy test, and 3 Patient-Reported Outcomes Measurement Information System-based questionnaires: Upper Extremity Function, Pain Interference, and Depression. Multivariable logistic and linear regression models were used to determine predictors of patient satisfaction, patient-perceived surgeon rush, and high previsit expectations of visit duration. RESULTS: Patient satisfaction was not associated with perceived visit duration but did correlate strongly with patient-rated surgeon empathy and symptoms of depression. Neither visit duration nor previsit expectations of visit length were determinants of patient-perceived surgeon rush. Only surgeon empathy was associated. Less-educated patients anticipated needing more time with the surgeon. CONCLUSIONS: Patient satisfaction with the surgeon and with the time spent during the office visit was primarily linked to surgeon empathy rather than to visit duration or previsit expectation of visit length. Efforts to make hand surgery office visits more patient-centered should focus on improving dialogue quality, and not necessarily on making visits longer.

Computed Tomography Angiography Allows the Classification of the First Dorsal Metatarsal Arteries.

Background Conventional angiography is an invasive technique. Submillimeter computed tomography angiography (CTA) has been shown to be an effective alternative for peripheral artery branches. This study aimed to assess the use of CTA to guide the choice and design of foot donor area for finger or thumb reconstruction. Methods This was a retrospective study of 79 patients who underwent finger or thumb reconstruction between January, 2011 and March, 2014. All these patients underwent preoperative CTA to determine the exact blood supply at the donor site. Preoperative imaging and intraoperative findings at the donor site were compared. Results Among the 79 patients (158 feet), 474 artery segments (dorsalis pedis artery [DPA], first dorsal metatarsal artery [FDMA], and toe web artery [TWA]) were evaluated using CTA. Image satisfaction rates of the vessels were 100.0 ± 0.0%, 89.2 ± 3.2%, and 60.1 ± 5.0% for DPA, FDMA, and TWA, respectively. Among the 158 feet, 90 were Gilbert type I (57.0%), 52 were Gilbert type II (32.9%), 13 were Gilbert type III (8.2%), and 3 were with poor visibility and could not be classified (1.9%). In all 79 patients, the CTA image of the FDMA was consistent with the intraoperative observations. All reconstructed fingers survived. Follow-up was available for 69 patients. After a 6- to 18-month follow-up, the reconstructed fingers and donor area recovered well, and the reconstructed fingers had strong holding power, without pain. Conclusion CTA can produce three-dimensional images for extremity arteries, allowing the preoperative assessment of blood supply and planning of donor site.

Health literacy in hand surgery patients: a cross-sectional survey.

PURPOSE: To determine the prevalence of and factors associated with limited health literacy among outpatients presenting to an urban academic hospital-based hand surgeon. METHODS: A cohort of 200 English- and Spanish-speaking patients completed the Newest Vital Sign (NVS) health literacy assessment tool, a sociodemographic survey, and 2 Patient-Reported Outcomes Measurement Information System-based computerized adaptive testing questionnaires: Patient-Reported Outcomes Measurement Information System Pain Interference and Upper-Extremity Function. The NVS scores were divided into limited (0-3) and adequate (4-6) health literacy. Multivariable regression modeling was used to identify independent predictors of limited health literacy. RESULTS: A total of 86 patients (43%) had limited health literacy (English-speaking: 33%; Spanish-speaking: 100%). Factors associated with limited health literacy were advanced age, lower income, and being publicly insured or uninsured. Increasing years of education was a protective factor. Primary language was not included in the logistic regression model because all Spanish-speaking patients had limited health literacy. When evaluating health literacy on a continuum, primary language was the factor that most influenced the NVS scores, accounting for 14% of the variability. CONCLUSIONS: Limited health literacy was commonplace among patients seeing a hand surgeon, more so in elderly and disadvantaged individuals. We hope our study raises awareness of this issue among hand surgeons and encourages providers to simplify messages and improve communication strategies. TYPE OF STUDY/LEVEL OF EVIDENCE: Prognostic II.

Physician Empathy as a Driver of Hand Surgery Patient Satisfaction.

PURPOSE: To examine the relationship between patient-rated physician empathy and patient satisfaction after a single new hand surgery office visit. METHODS: Directly after the office visit, 112 consecutive new patients rated their overall satisfaction with the provider and completed the Consultation and Relational Empathy Measure, the Newest Vital Sign health literacy test, a sociodemographic survey, and 3 Patient-Reported Outcomes Measurement Information System-based questionnaires: Pain Interference, Upper-Extremity Function, and Depression. We also measured the waiting time in the office to see the physician, the duration of the visit, and the time from booking until appointment. Multivariable logistic and linear regression models were used to identify factors independently associated with patient satisfaction. RESULTS: Patient-rated physician empathy correlated strongly with the degree of overall satisfaction with the provider. After controlling for confounding effects, greater empathy was independently associated with patient satisfaction, and it alone accounted for 65% of the variation in satisfaction scores. Older patient age was also associated with satisfaction. There were no differences between satisfied and dissatisfied patients with regard to waiting time in the office, duration of the appointment, time from booking until appointment, and health literacy. CONCLUSIONS: Physician empathy was the strongest driver of patient satisfaction in the hand surgery office setting. As patient satisfaction plays a growing role in reimbursement, targeted educational programs to enhance empathic communication skills in hand surgeons merit consideration. TYPE OF STUDY/LEVEL OF EVIDENCE: Prognostic II.

Determinants of disability after proximal interphalangeal joint sprain or dislocation.

BACKGROUND: Sprain or dislocation of the proximal interphalangeal joint may be a useful example of the counterintuitive aspects of recovery as the prognosis is excellent, but protectiveness in response to discomfort often hinders the stretching exercises that are a key component of the recovery process. OBJECTIVE: The aim of this study was to investigate the relationship between disability and pain self-efficacy in this context. METHODS: A total of 82 patients (54 men and 28 women) were enrolled in this prospective study. Finger motion was measured, and the patients completed measures of upper limb-specific disability (the shortened version of the Disabilities of the Arm, Shoulder and Hand questionnaire), symptoms of depression (Patient Health Questionnaire-9), effective coping strategies in response to pain (the Pain Self-Efficacy Questionnaire), and a pain scale at enrollment. RESULTS: Patients were enrolled a mean of 48 days after injury. The final multivariable model accounting for greater disability included lower self-efficacy, greater symptoms of depression, and gender (women have more disability). Lower self-efficacy was also the strongest predictor of pain intensity and finger stiffness. CONCLUSIONS: Effective coping strategies such as self-efficacy facilitate recovery (less disability, pain, and stiffness) after proximal interphalangeal joint sprain/dislocation. LEVEL OF EVIDENCE: Prognostic level I.

Determinants of disability after fingertip injuries.

BACKGROUND: Psychological factors, such as depression, catastrophic thinking, and self-efficacy, account for more of the variation in upper extremity disability than motion and other impairments, but their influence in the setting of hand trauma is less well studied. OBJECTIVE: The aim of this study was to determine which factors account for variation in disability 1 month after fingertip injuries. METHODS: We enrolled 82 patients with finger injuries distal to the proximal interphalangeal joint, and 70 patients completed the study. Questionnaires and measurements were taken at the initial visit and approximately 1 month later. Patients completed the short version of the Disabilities of the Arm Shoulder and Hand questionnaire, the pain self-efficacy questionnaire, and the Patient Health Questionnaire to assess depressive symptoms. Bivariate and multivariable analyses determined factors associated with QuickDASH scores. RESULTS: The mean disabilities of the arm shoulder and hand questionnaire score was 35 at the initial visit (the U.S. norm is 10) and 17 approximately 1 month later. The best model explained 54% of the variation in disabilities of the arm shoulder and hand questionnaire 1 month after injury and included symptoms of depression (Patient Health Questionnaire; partial R2 0.43) and injury mechanism (saw injury compared with sport injury; partial R2 0.14). The criterion symptoms of depression was also the factor most strongly associated with both pain intensity and time off work. CONCLUSIONS: In patients with fingertip injury, symptoms of depression account for most of the variability in hand and arm-specific disability, pain intensity, and days to return to work. Identification and treatment of symptoms of depression might facilitate recovery from fingertip injuries.

The pain self-efficacy questionnaire: validation of an abbreviated two-item questionnaire.

BACKGROUND: The Pain Self-Efficacy Questionnaire (PSEQ) is a validated tool to assess pain self-efficacy and is strongly correlated with disability. Reducing the number of questions of the original PSEQ to screen for self-efficacy will result in more efficient screening and less burden for the patient. OBJECTIVE: The aim of this study was to prospectively validate the shortened version of the PSEQ. METHOD: Overall, 249 new and follow-up patients visiting our outpatient orthopedic hand surgery clinic were prospectively enrolled and asked to complete the PSEQ, short version of the Disabilities of the Arm Shoulder and Hand, and 2-question version of the Patient Health Questionnaire (PHQ-2) depression questionnaires. The patients completed the questionnaires in the office and online 2 weeks after their visit. At the follow-up visit, the PSEQ was substituted with the 2-question version of the Pain Self-Efficacy Questionnaire (PSEQ-2). The factors associated with higher short forms of the Disabilities of the Arm, Shoulder and Hand scores were investigated in a bivariate and multivariable analysis. Paired t-test was used to compare the mean values of the short and long questionnaires at enrollment. RESULTS: There was a large correlation (r = 0.90; p < 0.001) between the original PSEQ and the PSEQ-2 at enrollment. The Cronbach α were comparable for the PSEQ and the PSEQ-2 (α = 0.95 compared with α = 0.91). There was a small but statistically significant difference between the average scores of the PSEQ and PSEQ-2 (4.4 vs 4.8; p < 0.001). For the shortened PSEQ, a smaller-but still large-correlation was found with the short forms of the Disabilities of the Arm, Shoulder and Hand (r = 0.71 vs r = 0.61). Both the PSEQ-2 and the PSEQ were the most important predictors of the short forms of the Disabilities of the Arm, Shoulder and Hand scores. A substantial test-retest reliability was found for the PSEQ-2 (0.66). CONCLUSION: The PSEQ-2 can be used to quickly assess patients׳ pain self-efficacy.

Outcomes of closed reduction and periarticular pinning of base and shaft fractures of the proximal phalanx.

PURPOSE: To review the results of periarticular pinning of extra-articular fractures of the proximal phalanx base and shaft. METHODS: A retrospective review was performed of the senior author's practice (C.S.M.) from 2006 to 2012. The inclusion criteria were patients older than 18 years of age who underwent periarticular pinning of base or shaft fractures of the proximal phalanx. Age, sex, fracture location, fracture pattern, and time to surgery were recorded. Outcome measures were range of motion, time to healing, and complication rate. RESULTS: A total of 43 patients with 50 fractures were identified. There were 19 men and 24 women with 16 shaft and 34 base fractures. Five fractures were open. The little finger was involved in 62%, the ring finger in 30%, and the index and middle fingers in 4% each. Most fractures were transverse or oblique, and just over half had comminution and/or impaction. Average follow-up was 17 weeks, and average time to clinical union was 35 days. Nine patients (18%) were lost to follow-up. Twenty-six fingers had excellent results (63%), lacking less than 10° of total motion. Seven patients (17%) had good results, lacking less than 20° of motion; 7 patients had fair results (17%); and 1 patient had a poor result. Three patients (7%) developed stiffness requiring tenolysis. There were 2 pin-site infections, 1 of which resulted in a loss of reduction. Results for shaft and base fractures were not significantly different. CONCLUSIONS: Percutaneous periarticular pinning is an acceptable option for unstable base and shaft fractures of the proximal phalanx. Most fractures healed within 4 weeks. The majority of patients had excellent or good results. TYPE OF STUDY/LEVEL OF EVIDENCE: Therapeutic IV.

Carpal tunnel syndrome: assessment of surgeon and patient preferences and priorities for decision-making.

PURPOSE: This study tested the null hypothesis that there are no differences between the preferences of hand surgeons and those patients with carpal tunnel syndrome (CTS) facing decisions about management of CTS (ie, the preferred content of a decision aid). METHODS: One hundred three hand surgeons of the Science of Variation Group and 79 patients with CTS completed a survey about their priorities and preferences in decision making regarding the management of CTS. The questionnaire was structured according the Ottawa Decision Support Framework for the development of a decision aid. RESULTS: Important areas on which patient and hand surgeon interests differed included a preference for nonpainful, nonoperative treatment and confirmation of the diagnosis with electrodiagnostic testing. For patients, the main disadvantage of nonoperative treatment was that it was likely to be only palliative and temporary. Patients preferred, on average, to take the lead in decision making, whereas physicians preferred shared decision making. Patients and physicians agreed on the value of support from family and other physicians in the decision-making process. CONCLUSIONS: There were some differences between patient and surgeon priorities and preferences regarding decision making for CTS, particularly the risks and benefits of diagnostic and therapeutic procedures. CLINICAL RELEVANCE: Information that helps inform patients of their options based on current best evidence might help patients understand their own preferences and values, reduce decisional conflict, limit surgeon-to-surgeon variations, and improve health.

Patient activation and disability in upper extremity illness.

PURPOSE: To determine if higher patient activation (active involvement in one's health care) correlates with fewer symptoms and less disability in patients with hand and upper extremity illness. METHODS: We enrolled 112 patients presenting to our department for the first time. Before meeting with the surgeon, subjects completed a demographics questionnaire, the short form Patient Activation Measure; Quick Disabilities of the Arm, Shoulder, and Hand; Patient Health Questionnaire-2; Pain Self-Efficacy Questionnaire; and an 11-point ordinal rating of pain intensity. We contacted patients 1 to 2 months after enrollment. Seventy-five subjects completed the second evaluation over the telephone, on a secure data-collection web site, or in an office visit, which included the Patient Activation Measure; Quick Disabilities of the Arm, Shoulder, and Hand; numerical rating scale for pain; and ordinal rating of treatment satisfaction. RESULTS: Patient activation at enrollment correlated with disability, pain intensity, and satisfaction with treatment but was only retained in the multivariable model for pain intensity. Pain self-efficacy at enrollment was the factor that best accounted for variation in disability, pain, and satisfaction with treatment. CONCLUSIONS: Given the consistent relationship between effective coping strategies (eg, pain self-efficacy) and symptoms and disability and the independent influence of patient activation on pain intensity in this study, future research should address the ability of interventions that improve self-efficacy and patient activation to improve upper extremity health. TYPE OF STUDY/LEVEL OF EVIDENCE: Prognostic II.

Relationships between pain misconceptions, disability, patients' goals and interpretation of information from hand therapists.

INTRODUCTION: Patient interpretation of advice from hand therapists may be related to nonadaptive pain thoughts (automatic, overprotective, unduly pessimistic statements triggered by nociception and exacerbated by psychological distress). PURPOSE OF THE STUDY: This study aimed to determine whether there were correlations between participants' hand therapy goals, interpretation of advice from hand therapists, nonadaptive pain thoughts, and upper extremity-specific disability. METHODS: One hundred and five participants completed questionnaires assessing nonadaptive pain thoughts, upper extremity-specific disability, lessons from hand therapists, and hand therapy goals. RESULTS: Nonadaptive pain thoughts correlated with disability and were bi-directionally related to participant goals and interpretation of advice from hand therapists. DISCUSSION: Patients' nonadapative pain thoughts and the words/concepts used by hand therapists are both important in recovery from upper extremity illness. CONCLUSIONS: Hand therapists should be mindful that nonadaptive pain thoughts are an important determinant of disability and that such thoughts can affect and be affected by their recommendations. LEVEL OF EVIDENCE: n/a.

Management of isolated volar lunate facet fractures of the distal radius.

Distal radius fractures are among the most common fractures treated globally. Consideration of the mechanism of injury and careful radiographic assessment contributes to appropriate management of these injuries in isolation or jointly with other fractures or injuries affecting the wrist joint. Treatment options can range from non-operative management to a variety of fixation techniques. Interest in the distal radius fractures was renewed as open reduction and monoblock volar locking plate fixation became the preferred contemporary treatment in the last few decades. Isolated volar lunate facet (VLF) fractures are uncommon. However, the stability of the entire carpus may be compromised with fractures of the volar marginal rim. Inadequately or improperly treated fractures of the VLF can lead to significant long-term complications. A critical approach to this unique fracture pattern's evaluation, management, and surgical fixation is paramount for successful and reproducible outcomes in stability and durability.

The "Bag of Bones" Treatment of Comminuted Intra-articular Distal Humerus Fractures in the Elderly.

BACKGROUND: Extensively comminuted intra-articular distal humerus fractures in the elderly present a challenging therapeutic dilemma. The purpose of this study was to investigate the results of nonoperative treatment of these fractures in a select subset of patients. METHODS: Patients treated with nonoperative management for a comminuted intra-articular distal humerus fracture between 2007 and 2018 were reviewed. Patients were administered 3 elbow-specific functional outcomes instruments. RESULTS: A total of 8 patients (2 men, 6 women) were treated with brief immobilization followed by early range of motion. All had fractures with extensive comminution of the articular surface such that open reduction and internal fixation was not feasible. Average age was 70 years. At an average of 33 months postinjury, average flexion was 124°, and extension was -27°, with full forearm rotation. No patients required pain medications at the latest follow-up. At 33 months of follow-up, the average Mayo Elbow Performance Score was 92/100 (100 optimal), Oxford Elbow Score was 43/48 (48 optimal), and Quick Disabilities of the Arm, Shoulder, and Hand Score was 10/100 (0 optimal). All patients were satisfied with the nonsurgical treatment that they received. CONCLUSIONS: Nonoperative treatment for comminuted intra-articular distal humerus fractures results in acceptable functional outcome in elderly patients and should be considered when the fracture is not amenable to internal fixation and in lower-demand patients with higher surgical risk.

Radiographic alignment of unstable distal radius fractures fixed with 1 or 2 rows of screws in volar locking plates.

PURPOSE: We tested the null hypothesis that there is no difference in the change in volar tilt of the articular surface of the distal radius on lateral radiographs obtained before suture removal and 3 months or more after surgical fracture fixation when 1 or 2 rows of screws are used in the distal part of a volar locked plate. METHODS: We retrospectively identified 364 consecutive patients with a distal radius fracture treated by 2 surgeons with open reduction and volar locked plate fixation between 2007 and 2011 at our institution. A manually case-matched design with one-to-one matching of 2 different strategies for screws in the distal part of the plate (1 row versus 2 rows) on the basis of sex, AO type, presence of dorsal comminution, ulna fracture, mechanism of injury, and age (± 8 y) resulted in a group of 34 pairs, 68 total fractures. Radiographic alignment was measured before suture removal and 3 months or more after surgery. RESULTS: The change in volar tilt of the articular surface was -1.2° in the 1-row group and -0.9° in the 2-row group, which was not significantly different. The secondary displacement of radial inclination and ulnar variance were likewise small and not statistically significant. CONCLUSIONS: We found no advantage of 2 rows of distal screws over a single row of screws with respect to maintenance of achieved restoration of volar angulation after volar locked plate fixation of AO type A and C fractures of the distal radius. TYPE OF STUDY/LEVEL OF EVIDENCE: Therapeutic III.

Quantitative 3-dimensional CT analyses of intramedullary headless screw fixation for metacarpal neck fractures.

PURPOSE: Fixation countersunk beneath the articular surface is well accepted for periarticular fractures. Limited open intramedullary headless compression screw (HCS) fixation offers clinical advantages over Kirschner wire and open techniques. We used quantitative 3-dimensional computed tomography to assess the articular starting point, surface area, and subchondral volumes used during HCS fixation of metacarpal neck fractures. METHODS: We simulated retrograde intramedullary insertion of 2.4- and 3.0-mm HCS and 1.1-mm Kirschner wires for metacarpal neck fracture fixation in 3-dimensional models from 16 adults. We used metacarpal head articular surface area (mm(2)) and subchondral volumes (mm(3)) and coronal and sagittal plane arcs of motion, during which we analyzed the center and rim of the articular base of the proximal phalanx engaging the countersunk entry site. RESULTS: Mean metacarpal head surface area mated to the proximal phalangeal base in neutral position was 93 mm(2); through the coronal plane arc (45°) was 129 mm(2), and through the sagittal plane arc (120°) was 265 mm(2). The mean articular surface area used by countersunk HCS threads was 12%, 8%, and 4%, respectively, in each of these arcs. The 1.1-mm Kirschner wire occupied 1.2%, 0.9%, and 0.4%, respectively. Mean metacarpal head volume was 927 mm(3). Mean subchondral volume occupied by the countersunk portion was 4%. The phalangeal base did not overlap the dorsally located countersunk entry site through most of the sagittal plane arc. During coronal plane motion in neutral extension, the center of the base never engaged the dorsally located countersunk entry site. CONCLUSIONS: Metacarpal head surface area and subchondral head volume occupied by HCS were minimal. Articular surface area violation was least during the more clinically relevant sagittal plane arc of motion. CLINICAL RELEVANCE: The dorsal articular starting point was in line with the medullary canal and avoided engaging the center of the articular base through most of the sagittal plane arc. Three-dimensional computed tomography data support the use of an articular starting point for these extra-articular fractures.

Manifestations and treatment of the hand in adult congenital erythropoietic porphyria.

Congenital erythropoietic porphyria (CEP) is a rare enzymatic disorder of heme metabolism, leading to the accumulation of porphyrins in the skin and subdermal structures. We present the case of a 34-year-old, right-hand-dominant, male patient with CEP. The patient had developed a chronic open subluxation of the left index finger proximal interphalangeal joint due to skin necrosis. We successfully treated the patient with proximal interphalangeal arthrodesis. This case demonstrates that childhood-onset CEP can also manifest in the adult hand. Considering the patient's age, the destructive nature of the disease, and the poor quality of function in older patients with childhood CEP, surgical intervention was necessary to avoid further digital length loss. Although the treatment described in this case report is not uncommon, we found it essential to present this case because the clinical presentation of CEP is rare.

Osteonecrosis of Trapezium Occurring in Patient with History of Recurrent Carpometacarpal Corticosteroid Injection.

Osteonecrosis affecting the carpal bones is rare and is mostly seen in the lunate (Kienböck's disease). Osteonecrosis of the scaphoid (Preiser disease) is even rarer. There are only four individual case reports published on patients presenting with trapezium necrosis, none with previous history of corticosteroid injection. This case report is the first presentation of isolated trapezial necrosis in the setting of prior corticosteroid injection for thumb basilar arthritis. Level of Evidence: Level V (Therapeutic).

Muscle Belly Repair: Biomechanical Assessment of the Anchor Suture and the Modified Kessler Techniques.

Background: Treatment of muscle belly lacerations remains a problem for surgeons. Inadequate repair of lacerations can cause functional disability. To date, there is no consensus on the method of repair for these injuries. We have previously described a technique of repairing mid-substance muscle belly lacerations. The aim of this study was to determine the ultimate strength of an intact muscle belly and to compare the anchor suture (AS) technique with the modified Kessler (MK) technique. Methods: Fifteen fresh frozen hind-legs from adolescent pigs were divided into three groups and used for the testing. Each group consisted of five specimens. Group one was the intact control group, group two was repaired with the MK technique and group three was repaired with the AS technique. Following repair, the muscles were secured in a custom-made fixation apparatus and underwent linear tensioning at a rate of 25 mm/min, generating a load-displacement curve for each specimen. The data regarding ultimate strength, modes of failure and number of intact suture/anchor constructs (for groups 2 and 3) was calculated. Results: The ultimate strength of the intact muscle group of was found to be 608.1 ± 107.9  N. This was significantly (p < 0.05) higher than the pull-out strength of the MK and AS groups. The pull-out strength of the AS group was 143.1 ± 36.7 N, nearly twice that of the MK group 69.8 ± 16.4 N (p = 0.11). Suture pull-out was the most common mode of failure. Conclusions: The AS technique was found to have both higher strain and nearly twice the ultimate pull-out strength compared to the MK repair group. We suggest the AS technique as a viable technique for mid-substance muscle belly repairs.