Faculty Bibliography

OBJECTIVES/OBJECTIVE:Double fascicular transfer is argued to result in improved elbow flexion compared to the traditional ulnar fascicular transfer because it reinnervates both the biceps and the brachialis. This study seeks to determine if double fascicular transfer should be preferred over ulnar fascicular transfer to restore elbow flexion in patients with upper trunk brachial plexus injuries (BPI) by analyzing the current database of literature on the topic. METHODS:A systematic review was conducted according to PRISMA guidelines. Inclusion criteria were studies reporting Medical Research Council (MRC) scores on individual patients undergoing ulnar fascicular transfer and double fascicular transfer (ulnar and median nerve fascicle donors). Patients were excluded if: age < 18 years old and follow-up <12 months. Demographics obtained include age, sex, extent of injury (C5-C6/C5-C7), preoperative interval, procedure type, and follow-up time. Outcomes included absolute MRC score and ability to achieve MRC score ≥3 and ≥4. Univariate and multivariate regression analyses were completed to evaluate predictors of postoperative outcomes. RESULTS:Eighteen studies (176 patients) were included for pooled analysis. Patients that underwent double fascicular transfer had a higher percentage of patients attain a MRC score ≥ 4 compared to ulnar fascicular transfer subjects (83.0% vs. 63.3%, p = .013). Double fascicular transfer was a predictor of achieving high MRC scores (OR = 2.829, p = .015). Multivariate analysis showed that procedure type was the only near significant predictor of ability to obtain MRC ≥4 (OR: 2.338, p = .054). CONCLUSIONS:This analysis demonstrates that double fascicular transfer is associated with superior postoperative outcomes and should be performed for restoring elbow flexion.

Background  Length of immobilization after operative fixation of unstable distal radius fractures and management in elderly patients is an area of debate. Purpose  The purpose of this study is to delineate common practices of fellowship-trained hand surgeons and how they compare with current evidence-based protocols. Methods  Surveys were distributed to American Society for Surgery of the Hand members on preferred methods of fixation, postoperative immobilization, and variations in treatment of elderly patients with unstable distal radius fractures. Responses were analyzed in comparison to a literature review. Subgroups were compared with regard to training, practice type, and years in practice. Results  Four-hundred eighty-five surveys were analyzed. Volar fixed-angle plating was the most common choice of fixation (84.7%). Patients are most often immobilized for 1 to 2 weeks (40.0%) with range of motion (ROM) therapy begun most commonly between 1 and 4 weeks (47.2%). The majority of surgeons do not treat fractures differently in patients more than 65 years old. Physicians with more than 20 years of experience were significantly more likely to begin wrist ROM sooner with volar plating versus other fixation techniques compared with physicians with less than 20 years of experience (40.7% vs. 34.2%, respectively). Also, physicians in academic-only practices were more likely to immobilize patients for a shorter time after volar plating compared with those in privademics. Conclusion  Volar fixed-angle plating is the dominant fixation method for unstable distal radius fractures among fellowship-trained hand surgeons. Elderly patients are not treated more conservatively and rigid immobilization after operative fixation remains the treatment of choice despite current evidence-based protocols.

Objective: The purpose of this study was to assess the association between extent of brachial plexus injury and shoulder abduction/external rotation outcomes after spinal accessory nerve (SAN) to suprascapular nerve (SSN) transfer. Methods: A systematic review of the literature was conducted according to PRISMA guidelines. Inclusion criteria were studies reporting outcomes on patients undergoing SAN to SSN nerve transfer. Patients were excluded for the following reasons: age under 18, nerve transfer for reanimation of the shoulder other than SAN to SSN, and less than 12 months of follow-up postoperatively. Pooled analysis was performed, and primary outcomes were Medical Research Council (MRC) score and range of motion (ROM) for shoulder abduction and external rotation. Univariate logistic regression analysis was used to assess the association between extent of brachial plexus injury and shoulder abduction/external rotation outcomes after SAN to SSN transfer. A multivariate logistic regression analysis model including age, injury to surgery interval, and extent of injury as factors was also created. Results: Univariate logistic regression analysis showed greater extent of injury to be a predictor of poorer shoulder abduction outcomes (OR: 0.502; 95% CI: 0.260-0.971, p = 0.040). Multivariate logistic regression analysis confirmed this association (OR: 0.55; 95% CI: 0.236-0.877, p = 0.019). Extent of injury was not significantly associated with external rotation outcomes on univariate analysis (OR: 0.435; 95% CI: 0.095-1.995, p = 0.284) or multivariate analysis (OR: 0.445; 95% CI: 0.097-2.046, p = 0.298). Age and injury to surgery interval were not significantly associated with postoperative outcomes. Conclusions: More extensive brachial plexus injuries are associated with inferior outcomes after SAN to SSN transfer. A potential explanation for this finding includes lost contribution of muscles from the shoulder girdle that receive innervation from outside of the upper brachial plexus. The relationship between extent of injury and postoperative outcomes is important to recognize when determining and discussing operative intervention with patients.

BACKGROUND:Two mainstay surgical options for salvage in scapholunate advanced collapse and scaphoid nonunion advanced collapse are proximal row carpectomy and four-corner arthrodesis. This study evaluates the cost-utility of proximal row carpectomy versus three methods of four-corner arthrodesis for the treatment of scapholunate advanced collapse/scaphoid nonunion advanced collapse wrist. METHODS:A cost-utility analysis was performed in accordance with the Second Panel on Cost-Effectiveness in Health and Medicine. A comprehensive literature review was performed to obtain the probability of potential complications. Costs were derived using both societal and health care sector perspectives. A visual analogue scale survey of expert hand surgeons estimated utilities. Overall cost, probabilities, and quality-adjusted life-years were used to complete a decision tree analysis. Both deterministic and probabilistic sensitivity analyses were performed. RESULTS:Forty studies yielding 1730 scapholunate advanced collapse/scaphoid nonunion advanced collapse wrists were identified. Decision tree analysis determined that both four-corner arthrodesis with screw fixation and proximal row carpectomy were cost-effective options, but four-corner arthrodesis with screw was the optimal treatment strategy. Four-corner arthrodesis with Kirschner-wire fixation and four-corner arthrodesis with plate fixation were dominated (inferior) strategies and therefore not cost-effective. One-way sensitivity analysis demonstrated that when the quality-adjusted life-years for a successful four-corner arthrodesis with screw fixation are lower than 26.36, proximal row carpectomy becomes the optimal strategy. However, multivariate probabilistic sensitivity analysis confirmed the results of our model. CONCLUSIONS:Four-corner arthrodesis with screw fixation and proximal row carpectomy are both cost-effective treatment options for scapholunate advanced collapse/scaphoid nonunion advanced collapse wrist because of their lower complication profile and high efficacy, with four-corner arthrodesis with screw as the most cost-effective treatment. Four-corner arthrodesis with plate and Kirschner-wire fixation should be avoided from a cost-effectiveness standpoint.

INTRODUCTION/BACKGROUND:Interpositional grafts (IG) can be used to reconstruct the digital artery during revascularization and replantation when primary repair is not possible. The purpose of this study is to determine the effect of using interpositional graft on rates of digit survival. METHODS:A retrospective review of all patients from 2007 to 2016 that required revascularization and/or replantation of one or more digits was performed. RESULTS:127 patients were identified with 171 affected digits (118 digital revascularizations, 53 digital replantation). A graft was used to repair the digital artery in 50% (59 of 118) of revascularizations and in 49% (26 of 53) of replantations. There was no difference in digit survival with use of an IG for arterial repair vs. primary repair in revascularization (91.5% in both groups) or replantation (48.1% vs. 46.2%, p = 0.88). Regression analysis demonstrated no association between use of IG and digit survival. The source of IG did not have any effect on digit survival (p=0.97). IG was more likely to be used in crush (62.5%) and avulsion injuries (72.2%) compared to sharp laceration injuries (11.1 %) with RR = 5.6 (p=0.01) and RR = 6.5 (p=0.006) respectively. CONCLUSION/CONCLUSIONS:There was no difference in the survival rate of amputated digits that required IG for arterial repair. The need for an IG in a large zone of injury should not be considered a contraindication to performing revascularization or replantation. Furthermore, hand surgeons should have a low threshold for using IG especially in crush or avulsion injuries.

BACKGROUND:No study exists on preparatory time-from patient's entrance into the operating room to skin incision-and its role in hand surgery operating room inefficiency. The purpose of this study was to investigate the length and variability of preparatory time and assess the relationship between several variables and preparatory time. METHODS:Consecutive upper extremity cases performed for a period of 1 month by hand surgeons were reviewed at 3 surgical sites. Preparatory time was compared across locations. Cases at one location were further analyzed to assess the relationship between preparatory time and several variables. Both traditional statistical methods and Shewhart control charts, a quality control tool, were used for data analysis. RESULTS:A total of 288 cases were performed. The mean preparatory times at the 3 sites were 25.1, 25.7, and 20.7 minutes, respectivley. Aggregated preparatory time averaged 24.4 (range 7-61) minutes, was 75% the length of the surgical time, and accounted for 34% of total operating room time. Control charts confirmed substantial variability at all locations, signifying a poorly defined process. At a single site, where 189 cases were performed by 14 different surgeons, there was no difference in preparatory time by case type, American Society of Anesthesiologists status, or case start time. Preparatory time varied by surgeon and anesthesia type. CONCLUSIONS:Preparatory time was found to be a source of inefficiency, independent of the surgical site. Control charts reinforced large variations, signifying a poorly designed process. Surgeon seemingly plays an important, albeit likely indirect, role. Efforts to improve operating room workflow should include preparatory time.

BACKGROUND:The general teaching is that increased number of vein repairs in digit replantation leads to improved venous outflow, resulting in lower need for iatrogenic bleeding, lower postoperative transfusion requirements, and better survival rates. The purpose of this study was to determine whether the traditional teaching that emphasizes the repair of multiple veins per arterial anastomosis results in superior survival rates. METHODS:A retrospective review of a single urban replant center's single-digit replants distal to the mid-metacarpal level in adult patients from 2007 to 2017 was performed. Data on patient demographics, mechanism and level of injury, veins repaired, iatrogenic bleeding, postoperative transfusions, and replant survival were obtained. RESULTS:There were a total of 54 single-digit replants. The most common mechanism was lacerations (N = 38), and the most common injury level was at the proximal phalanx (N = 21). All digits were replanted with a single arterial anastomosis-44% via grafting. In all, 0 to 3 veins were repaired per digit (mean = 1.5 veins). The mean transfusion requirement was 1.7 units. The survival rate was 50%. Digits with 1 or 2 veins repaired had lower transfusion requirements (1.1-1.3 units) and higher survival rates (56%-61%) compared with those replanted with 0 or 3 veins repaired (2.9-3.5 transfused units, 25%-29% survival). There were no differences between those digits replanted with either 1 or 2 veins repaired for transfusion requirements or survival. CONCLUSIONS:More veins repaired do not necessarily improve survival or possibly venous outflow, calling into question the traditional teaching that 2 veins should be repaired for every arterial anastomosis.

We retrospectively reviewed 201 digit replantations or revascularizations that were performed between August 2007 and June 2015. Leeching therapy was used in 48 digits and was more commonly required in replanted digits. In revascularized digits, leeching was used significantly more frequently in avulsion injuries and injuries associated with fractures. Digits that were leeched for more than 4.5 days had significantly higher rates of survival of digits after replantation or revascularization. Leeching was associated with higher incidence of transfusion, higher mean number of transfusions, and longer length of stay. We conclude from this study that leeching is used more frequently after digital replantation than revascularizaion, and in revascularized digits, leeching is used more often in avulsion injury and in patients with fractures. In patients requiring leeching therapy, leaching for more than 4.5 days leads to higher rate of digital survival. Level of evidence: IV.

BACKGROUND:but with complication rates of 20% to 57%. We believe the pedicled latissimus dorsi flap is an effective and safe technique that provides reliable and durable coverage of considerably larger soft tissue defects around the elbow and proximal forearm. METHODS:A retrospective review was performed including all patients from Harborview Medical Center between 1998 and 2012 who underwent coverage with pedicled latissimus dorsi flap for defects around the elbow. Demographic information, injury mechanism, soft tissue defect size, complications (minor vs major), and time to surgery were collected. The size of the soft tissue defect, complications, and successful soft tissue coverage were the primary outcome measures. RESULTS:. Three patients had partial necrosis of the distal most aspect of the flap, which was treated conservatively. One patient required a secondary fasciocutaneous flap, and another required conversion to a free latissimus flap secondary to venous congestion. Two were lost to follow-up after discharge from the hospital. In all, 88% (14 of 16) of the patients had documented (>3-month follow-up) successful soft tissue coverage with single-stage pedicled latissimus dorsi flap. CONCLUSIONS:The pedicled latissimus dorsi flap is a reliable option for large and complex soft tissue injuries around the elbow significantly larger than previous reports. However, coverage of the proximal forearm remains challenging.

BACKGROUND:It is common teaching that treatment of index finger alone is a relative contraindication for arthroplasty of the proximal interphalangeal joint (PIPJ). However, limited data exist reporting the digit-specific complication of PIPJ arthroplasty for the treatment of osteoarthritis or posttraumatic arthritis. The purpose of this article is to perform a systematic review and meta-analysis of the literature to assess whether the 3 ulnar digits may bear a similar instability and complication profile. METHODS:Systematic searches of the MEDLINE, EMBASE, and Cochrane computerized literature databases were performed for PIPJ arthroplasty specifying by digit. We reviewed both descriptive and quantitative data to: (1) report aggregate instability and instability-related complications after non-index digit PIPJ arthroplasty; and (2) perform statistical testing to assess relative rates by digit and compared with index digits. RESULTS:Computerized search generated 385 original articles. Five studies reporting digit-specific instability-related outcomes of silicone, pyrocarbon, or metal surface arthroplasty on 177 digits were included in the review. Meta-analysis demonstrated a 29% instability rate for long digits (n = 65), 6% for ring digits (n = 53), and 6% for small digits (n = 17), compared with 33% for index digits (n = 42). There was no difference in the overall deformity, instability, and complication rates of long versus index fingers ( P = .65). CONCLUSIONS:Instability-related deformity and complication rates of long finger PIPJ arthroplasty may not be different from that of the index finger. Treatment of the long finger may be a relative contraindication to PIPJ arthroplasty. Future biomechanical and clinical studies are needed.