The Effects of Radial Longitudinal Deficiency on Long-Term Use of the Thumb in Pediatric Patients Following Index Pollicization

PURPOSE

To assess the effect of radial longitudinal deficiency on the function of pollicized digits as determined by the Thumb Grasp and Pinch (T-GAP) assessment.

METHODS

We retrospectively evaluated 25 hands with thumb hypoplasia that underwent index finger pollicization. Patients were followed for an average of 10.4 years. Hands were divided by severity into two groups: no or mild radial longitudinal deficiency (RLD) (Group 1 = 16) and moderate to severe RLD (Group 2 = 9). We collected demographic information and completed physical examination measures, including hand strength, elbow, wrist, and hand range of motion, the Kapandji opposition score, active grasp span, and T-GAP total score.

RESULTS

Patients with moderate to severe forms of RLD had stiffer long fingers, lower Kapandji opposition scores, and limited active and passive range of motion for elbow flexion, wrist ulnar deviation, and pollicized thumb interphalangeal flexion. They had shorter forearms, decreased active grasp span, and fewer thumb creases at the interphalangeal thumb joint. In addition, the T-GAP total score was significantly lower when comparing the two groups. Children with mild dysplasia were able to achieve 32% of age-matched normal grasp strength. Patients with more severe radial dysplasia averaged 17% less grasp strength compared with children with mild dysplasia. Patients with moderate to severe RLD also had lower T-GAP total scores and strength measurements if they had limited wrist ulnar deviation.

CONCLUSIONS

Individuals with moderate to severe RLD have unique anatomical factors that affect outcomes after pollicization. These individuals use their thumbs for fewer activities, have weaker grasp, and retain more primitive grasp patterns compared with those who have milder forms of RLD.

TYPE OF STUDY/LEVEL OF EVIDENCE

Prognostic IV.

Syndromic Involvement of Patients Presenting With Congenital Upper Limb Anomalies: An Analysis of 4,317 Cases

PURPOSE

This study investigated the patterns of syndromic involvement for patients with congenital upper limb anomalies (CULAs). We hypothesize that patients with CULAs will present with predictable syndromic patterns.

METHODS

This retrospective study queried the multicenter Congenital Upper Limb Differences (CoULD) Registry. Of the 4,317 patients enrolled, 578 (13%) reported one or more syndromes. Syndromes were confirmed to be recognized by the Online Mendelian Inheritance in Man. Demographics were reviewed and compared with the full CoULD registry group. Syndromes reported by five or more patients were examined to determine the type of CULA according to Oberg/Manske/Tonkin classifications.

RESULTS

Of the 578 children with one or more reported syndromes, 517 had Online Mendelian Inheritance in Man recognized syndromes (cohort A), In cohort A, 58 syndromes were each represented by a single patient within the registry. Forty-eight syndromes in cohort A were reported by two or more patients, which accounted for 461 of the total patients with reported syndromes. However, VACTERL and Poland syndromes were the most commonly reported syndromes. Patients with CULAs and syndromes frequently exhibited bilateral involvement (61%), compared with the entire CoULD group (47%) and other orthopedic (50%) and medical conditions (61%) compared with the entire CoULD group (24% and 27%, respectively). Additionally, they exhibited a lower frequency of family history of a congenital orthopedic condition (21%) or a family member with the same CULA (9%) compared with the entire CoULD group (26% and 14%, respectively).

CONCLUSIONS

Associated syndromes were recorded in 578 patients (13%) in the CoULD registry as follows: 58 syndromes represented by a single patient, 48 by 2 or more patients, and 23 syndromes by 5 or more patients. Rare syndromes that are only represented by a single patient are more likely to be unknown by a pediatric hand surgeon, and consultation with a geneticist is advised.

TYPE OF STUDY/LEVEL OF EVIDENCE

Differential Diagnosis/Symptom Prevalence Study IV.

Congenital Upper-Limb Differences: A 6-Year Literature Review

➤ The Oberg-Manske-Tonkin (OMT) classification of congenital hand and upper-limb anomalies continues to be refined as our understanding of the genetic and embryonic etiology of limb anomalies improves.➤ We have conducted an evaluation of graft and graftless techniques for syndactyly reconstruction; strengths and drawbacks exist for each technique.➤ Treatment for radial longitudinal deficiency remains controversial; however, radialization has shown promise in early follow-up for severe deformities.➤ Recent emphasis on psychosocial aspects of care has demonstrated that children with congenital upper-limb differences demonstrate good peer relationships and marked adaptability.

Do Nails and Nubbins Matter? A Comparison of Symbrachydactyly and Transverse Deficiency Phenotypes

PURPOSE

Transverse deficiency (TD) and symbrachydactyly may be difficult to distinguish due to shared phenotypes and a lack of pathognomonic features. The 2020 Oberg-Manske-Tonkin classification update modified these anomalies to include "with ectodermal elements" for symbrachydactyly and "without ectodermal elements" for TD as a defining differentiating characteristic. The purpose of this investigation was to characterize ectodermal elements and the level of deficiency and to examine whether ectodermal elements versus the level of deficiency was a greater determining factor for Congenital Upper Limb Differences (CoULD) surgeons making the diagnosis.

METHODS

This was a retrospective review of 254 extremities from the CoULD registry with a diagnosis of symbrachydactyly or TD by pediatric hand surgeons. Ectodermal elements and the level of deficiency were characterized. A review of the registry radiographs and photographs was used to classify the diagnosis and compare it with the diagnosis given by the pediatric hand surgeons. The presence/absence of nubbins versus the level of deficiency as the determining factor to differentiate the pediatric hand surgeons' diagnosis of symbrachydactyly (with nubbins) versus TD (without nubbins) was analyzed.

RESULTS

Based on radiographs and photographs of the 254 extremities, 66% had nubbins on the distal end of the limb; of the limbs with nubbins, nails were present on 51%. The level of deficiency was amelia/humeral (n = 9), <1/3 transverse forearm (n = 23), 1/3 to 2/3 transverse forearm (n = 27), 2/3 to full forearm TD (n = 38), and metacarpal/phalangeal (n = 103). The presence of nubbins was associated with a four times higher likelihood of a pediatric hand surgeon's diagnosis of symbrachydactyly. However, a distal deficiency is associated with a 20-times higher likelihood of a diagnosis of symbrachydactyly than a proximal deficiency.

CONCLUSIONS

Although both the level of deficiency and ectodermal elements are important, the level of deficiency was a greater determining factor for a diagnosis of symbrachydactyly versus TD. Our results suggest that the level of deficiency and nubbins should both be described to help provide greater clarity in the diagnosis of symbrachydactyly versus TD.

TYPE OF STUDY/LEVEL OF EVIDENCE

Diagnostic IV.

Complications in the 2-Year Postoperative Period Following Pediatric Syndactyly Release

PURPOSE

Syndactyly surgical release is one of the most common congenital hand surgeries performed by pediatric hand surgeons. The purpose of our study was to evaluate the complications associated with syndactyly release and determine factors that correlate with higher complication rates within the 2-year postoperative period.

METHODS

A retrospective chart review was completed for patients who underwent syndactyly release at a single pediatric center between 2005 and 2018. Patients were included if they had a diagnosis of syndactyly and underwent surgical release, and excluded for a diagnosis of cleft hand, incomplete surgical documentation, surgery performed at an outside institution, or follow-up care that did not extend beyond the first postoperative visit. Complications were classified using the Clavien-Dindo (CD) system.

RESULTS

Fifty-nine patients met the inclusion criteria, which included 143 webs released in 85 surgeries. A total of 27 complications occurred for the 85 surgeries performed. The severity of complications was CD grade I or II in 23% of surgeries, most commonly unplanned cast changes, and CD grade III in 8% of surgeries. No CD grade IV or V complications occurred. The CD grade III complications included 6 reoperations. The complication rate was higher when performing >1 syndactyly release per surgery. It also was higher for patients undergoing >1 surgical event. Rates of complication per surgery were similar between patients with multiple surgeries compared with those with a single surgery. Concomitant diagnoses and complexity of syndactyly was not associated with a higher complication rate.

CONCLUSIONS

Syndactyly release was associated with a complication rate of 31% per surgical event with 44% of these complications related to unplanned cast changes and 8% of complications that required admission or reoperation. Risk factors for complications following syndactyly release include >1web operated on per surgery and undergoing >1 surgical event.

TYPE OF STUDY/LEVEL OF EVIDENCE

Prognosis IV.

American Board of Orthopaedic Surgery’s Initiatives Toward Competency-Based Education

The American Board of Orthopaedic Surgery (ABOS) is the national organization charged with defining education standards for graduate medical education in orthopaedic surgery. The purpose of this article is to describe initiatives taken by the ABOS to develop assessments of competency of residents to document their progress toward the independent practice of orthopaedic surgery and provide feedback for improved performance during training. These initiatives are called the ABOS Knowledge, Skills, and Behavior Program. Web-based assessment tools have been developed and validated to measure competence. These assessments guide resident progress through residency education and better define the competency level by the end of training. The background and rationale for these initiatives and how they serve as steps toward competency-based education in orthopaedic residency education in the United States will be reviewed with a vision of a hybrid of time and competency-based orthopaedic residency education that will remain 5 years in length, with residents assessed using standardized tools.

A 15-Year Report on the Uneven Distribution of Women in Orthopaedic Surgery Residency Training Programs in the United States

This study was undertaken to update reports from 2004 to 2005 through 2008 to 2009, and 2009 to 2010 through 2013 to 2014, including 5 additional years of GME Track data. Our hypothesis is there have been no significant changes during the past 5 years in the distribution of Accreditation Council for Graduate Medical Education (ACGME)-accredited orthopaedics residency programs that train female residents, compared with the previous 10 years.

Methods

Data for ACGME-accredited orthopaedics residency training programs in the United States were analyzed for 5 consecutive academic years (2014-2015 through 2018-2019). Programs were classified as having no women, 1 woman, 2 women, or greater than 2 women in training. Programs were analyzed for percentage of female residents and classified as having above the national average (>20%), similar to the national average (between 10 and 20%), or below the national average (<10%).

Results

Analysis of the original 5 years (2004-2009) compared with the most recent data (2014-2019) demonstrated a statistically significant improvement in the number of programs training women (p < 0.001). From 2004 to 2009 to 2014 to 2019, the absolute number and percent of female trainees have increased (p < 0.001). Similar analysis of the middle 5 years (2009-2014) compared with the most recent 5 years (2014-2019) did not demonstrate a statistically significant change (p = 0.12). From 2014 to 2019, residency programs in the United States continue to train women at unequal rates: 37 programs had no female trainees, while 53 programs had >20% female trainees during at least one of these 5 years.

Conclusions

Female medical students continue to pursue orthopaedics at rates lagging behind all other surgical specialties. Not all residency programs train women at equal rates. If the rate of training of female residents over the past 15 years were projected over time, we would not achieve 30% women within orthopaedics residency training programs until approximately 2060.

Level of Evidence

III.

Cost Comparison of Botulinum Toxin Injections Versus Surgical Treatment in Pediatric Patients With Cerebral Palsy: A Markov Model

PURPOSE

The purpose of this study was to compare the cost-effectiveness of surgical release to botulinum toxin injections in the treatment of upper-extremity (UE) cerebral palsy (CP).

METHODS

A Markov transition-state model was developed to assess the direct and indirect costs as well as accumulated quality-adjusted life-years associated with surgery (surgery group) and continuous botulinum toxin injections (botulinum group) for the treatment of UE CP in children aged 7 to 12 years. Direct medical costs were obtained from institutional billing departments. The number of parental missed workdays associated with each treatment was estimated and previously published regressions were used to calculate indirect costs associated with missed work. Total costs, cost-effectiveness, and incremental cost-effectiveness ratios were calculated. Incremental cost-effectiveness ratios and willingness to pay thresholds were used to make decisions regarding society's willingness to pay for the incremental cost of each treatment given the incremental benefit.

RESULTS

The surgery group demonstrated lower direct, indirect, and total costs compared with the botulinum group. Direct costs were $29,250.50 for the surgery group and $50,596.00 for the botulinum group. Indirect costs were $9,467.46 for the surgery group and $44,428.60 for the botulinum group. Total costs were $38,717.96 for the surgery group and $95,024.60 for the botulinum group, a difference of $56,306.64. The incremental cost-effectiveness ratio was -$42,019.88, indicating that surgery is a less costly and more effective treatment and that botulinum injections fall outside the societal willingness to pay threshold. Excluding indirect costs associated with parental missed work during home occupational therapy did not have a significant impact on the model.

CONCLUSIONS

Surgery is associated with lower direct, indirect, and total costs, as well as a greater number of accumulated quality-adjusted life-years. Surgery provides a greater benefit at a lower cost, which suggests that botulinum injections should be used sparingly in this population. Treatment with surgery could represent savings of $5.6 to $11.3 billion annually in the United States.

TYPE OF STUDY/LEVEL OF EVIDENCE

Economic/Decision Analysis II.

A Comparative Analysis of 150 Thumb Polydactyly Cases from the CoULD Registry Using the Wassel-Flatt, Rotterdam, and Chung Classifications

PURPOSE

Three commonly used classifications for thumb polydactyly are the Wassel-Flatt, Rotterdam, and Chung. The ideal classification system would have high validity and reliability and be descriptive of the thumb anomaly. The purposes of this investigation were to (1) compare the inter- and intrarater reliability of these 3 classifications when applied to a large sample of patients enrolled in the Congenital Upper Limb Differences (CoULD) Registry and (2) determine the prevalence of radial polydactyly types when using the various classifications in a North American population.

METHODS

Inter- and intrarater reliability were determined using 150 cases of radial polydactyly presented in a Web-based format to 7 raters in 3 rounds, a preliminary training round and 2 observation rounds. Raters classified each case according to the Wassel-Flatt, Rotterdam, and Chung classifications. Inter- and intrarater reliability were evaluated with the intraclass correlation coefficient (ICC) calculated using 2-way random measures with perfect agreement.

RESULTS

For Wassel-Flatt, both the interrater (ICC, 0.93) and the intrarater reliability (ICC, 0.91) were excellent. The Rotterdam classification had excellent reliability for both interrater reliability (ICC, 0.98) and intrarater reliability (ICC, 0.94), when considering type alone. Interrater analysis of the additional subtypes demonstrated a wide range of reliabilities. The Chung classification had good interrater (ICC, 0.88) and intrarater reliability (ICC, 0.77). Within the Wassel-Flatt classification, the most frequent unclassifiable thumb was a type IV hypoplastic thumb as classified by the Rotterdam classification.

CONCLUSIONS

The Wassel-Flatt and Rotterdam classifications for radial polydactyly have excellent inter- and intrarater reliability. Despite its simplicity, the Chung classification was less reliable in comparison. The Chung and Rotterdam classification systems capture the hypoplastic subtypes that are unclassifiable in the Wassel-Flatt system. Addition of the hypoplastic subtype to the Wassel-Flatt classification (eg, Wassel-Flatt type IVh) would maintain the highest reliability and classify over 90% of thumbs deemed unclassifiable in the Wassel-Flatt system.

CLINICAL RELEVANCE

The Wassel-Flatt and Rotterdam classifications have excellent inter-and intrarater reliability for the hand surgeon treating thumb polydactyly. Addition of a hypoplastic subtype to the Wassel-Flatt (Type 4h) allows classification of most previously unclassifiable thumbs.

Use of the Behavior Assessment Tool in 18 Pilot Residency Programs

Background

The purpose of this study was to determine the feasibility and evaluate the effectiveness of the American Board of Orthopaedic Surgery Behavior Tool (ABOSBT) for measuring professionalism.

Methods

Through collaboration between the American Board of Orthopaedic Surgery and American Orthopaedic Association's Council of Residency Directors, 18 residency programs piloted the use of the ABOSBT. Residents requested assessments from faculty at the end of their clinical rotations, and a 360° request was performed near the end of the academic year. Program Directors (PDs) rated individual resident professionalism (based on historical observation) at the outset of the study, for comparison to the ABOSBT results.

Results

Nine thousand eight hundred ninety-two evaluations were completed using the ABOSBT for 449 different residents by 1,012 evaluators. 97.6% of all evaluations were scored level 4 or 5 (high levels of professional behavior) across all of the 5 domains. In total, 2.4% of all evaluations scored level 3 or below reflecting poorer performance. Of 431 residents, the ABOSBT identified 26 of 32 residents who were low performers (2 or more < level 3 scores in a domain) and who also scored "below expectations" by the PD at the start of the pilot project (81% sensitivity and 57% specificity), including 13 of these residents scoring poorly in all 5 domains. Evaluators found the ABOSBT was easy to use (96%) and that it was an effective tool to assess resident professional behavior (81%).

Conclusions

The ABOSBT was able to identify 2.4% low score evaluations (<level 3) for all residents. The tool was concordant with the PD for 81% of the residents considered low performers or "outliers" for professional behavior. The 5-domain construct makes it an effective actionable tool that can be used to help develop performance improvement plans for residents.

Level of Evidence

Level II.

The American Board of Orthopaedic Surgery Response to COVID-19

The COVID-19 pandemic has disrupted every aspect of society in a way never previously experienced by our nation's orthopaedic surgeons. In response to the challenges the American Board of Orthopaedic Surgery has taken steps to adapt our Board Certification and Continuous Certification processes. These changes were made to provide flexibility for as many Candidates and Diplomates as possible to participate while maintaining our high standards. The American Board of Orthopaedic Surgery is first and foremost committed to the safety and well-being of our patients, physicians, and families while striving to remain responsive to the changing circumstances affecting our Candidates and Diplomates.

Posterior Elbow Capsulotomy and Triceps Lengthening for Elbow Extension Contracture in Children with Arthrogryposis Multiplex Congenita

Posterior elbow capsulotomy plus triceps lengthening facilitates passive elbow flexion in children with arthrogryposis multiplex congenita, allowing independent function for activities of daily living, such as feeding and self-care of the face and hair.

Description

The posterior aspect of the distal end of the humerus and the olecranon are identified by palpation and exposed via a curvilinear incision over the posterior aspect of the elbow. Identifying the osseous landmarks can be challenging in some patients. The ulnar nerve is identified and protected. The triceps tendon is isolated, and z-lengthening is performed. Next, the posterior elbow capsule is incised proximal to the tip of the olecranon to expose the joint surface, and the arthrotomy is continued incrementally along the medial and lateral capsule until elbow flexion increases by ≥40°, or past 90° (maximum, 120°), with contact between the lengthened ends of the triceps tendon for repair. The triceps tendon is then repaired in the elongated position. After the wound is closed, the elbow is placed in flexion and immobilized in a cast.

Alternatives

Alternative treatments include passive stretching exercises to increase elbow flexion.

Rationale

Elbow extension contractures result in substantial limitations in the activities of daily living for children with arthrogryposis multiplex congenita. Those who fail to attain at least 90° of elbow flexion with passive stretching in the first year of life benefit from posterior elbow release and triceps lengthening. In addition, children with <30° of passive elbow flexion are at risk of developing valgus instability of the elbow from passive flexion exercises because the axis of rotation of the elbow is difficult to detect. Once passive elbow flexion is attained, such children may be candidates for tendon transfers allowing active elbow flexion.

Women in Orthopaedics: How Understanding Implicit Bias Can Help Your Practice

Women comprise approximately 50% of medical students; however, only 14% of current orthopaedic residents are women. There are many factors that contribute to the reluctance of female medical students to enter the field including limited exposure to musculoskeletal medicine during medical school, negative perception of the field, lack of female mentors, barriers to promotion, and acceptance by senior faculty. Diversity in orthopaedics is critical to provide culturally competent care. Two pipeline programs, the Perry Initiative and Nth Dimensions, have successful track records in increasing female and underrepresented minorities in orthopaedic surgery residency training. Recognizing and combating implicit bias in orthopaedics will improve recruitment, retention, promotion, and compensation of female orthopaedic surgeons. The purpose of this chapter is to provide an overview of the current status of women in orthopaedics, describe ways to improve diversity in the field, and make surgeons aware of how implicit bias can contribute to discrepancies seen in orthopaedic surgery, including pay scale inequities and women in leadership positions.

Perceptions of the Recommended Resident Experience with Common Orthopaedic Procedures: A Survey of Program Directors and Early Practice Surgeons

BACKGROUND

U.S. orthopaedic residency training is anchored by the Accreditation Council for Graduate Medical Education (ACGME) requirements, which include minimum numbers for 15 categories of procedures. The face validity of these recommendations and expectations for exposure to other common procedures has not been rigorously investigated. The main goals of this investigation were to understand the perceptions of program directors and early practice surgeons regarding the number of cases needed in residency training and to report which of the most commonly performed procedures residents should be able to perform independently upon graduation.

METHODS

We sent surveys to 157 current program directors of ACMGE-approved orthopaedic surgery residency programs and to all examinees sitting for the American Board of Orthopaedic Surgery (ABOS) Part II Oral Examination in 2017, requesting that they estimate the minimum number of exposures for the 22 adult and 24 pediatric procedures that are most commonly performed during residency and the first 2 years in practice. Where applicable, we compared these with the ACGME "Minimum Numbers" and the average ACGME resident experience data from 2010 to 2012 for resident graduates. For each of the 46 procedures, participants were asked if every orthopaedic resident should be able to independently perform the procedure upon graduation. We compared the percent for independence between the early practice surgeons and the program directors.

RESULTS

For the majority of adult and pediatric procedures, the early practitioners reported significantly higher numbers of cases needing to be performed during residency than the program directors. ACGME Minimum Numbers were always lower than the case numbers that were recommended by the early practice surgeons and the program directors. Overall we found good-to-excellent agreement for independence at graduation between program directors and early practitioners for adult cases (intraclass correlation coefficient [ICC], 0.98; 95% confidence interval [CI], 0.82 to 0.99) and moderate-to-good agreement for pediatric cases (ICC, 0.96; 95% CI, 0.74, 0.99).

CONCLUSIONS

The program directors frequently perceived the need for resident operative case exposure to common orthopaedic procedures to be lower than that estimated by the early practice surgeons. Both program directors and early practice surgeons generally agreed on which common cases residents should be able to perform independently by graduation.

Did a Minimum Case Requirement Improve Resident Surgical Volume for Closed Wrist and Forearm Fracture Treatment in Orthopedic Surgery?

OBJECTIVE

The purpose of this study is to determine whether the 2013 implementation of ACGME minimum case requirements was associated with increased documented case volume of closed manipulation of forearm and wrist fractures (CMFWF) for graduating orthopedic surgery residents.

DESIGN

We reviewed ACGME case log data for CMFWF among graduating orthopedic surgery residents from 2007 to 2016. Annual national mean, and median number of CMFWF performed by residents in the 10th, 30th, 50th, and 90th case volume percentile were evaluated. Preminimum (2007-2010) data was compared to postminimum (2013-2016) values to assess the impact of ACGME minimum requirements on resident case volume.

SETTING

Review of publically available ACMGE Orthopedic Surgery Residency Program case log data.

PARTICIPANTS

ACGME case log data for orthopedic surgery residents graduating between 2007 and 2016.

RESULTS

National mean number of CMFWF increased significantly pre- to postminimum requirement (30.0 ± 2.84 to 45.0 ± 3.36, p < 0.001). Between 2010 and 2016 there was a 1100%, 300%, 83%, and 9% increase in the median number of CMFWF within the 10th, 30th, 50th, and 90th percentiles, respectively.

CONCLUSIONS

ACGME's 2013 case minimum requirement corresponded to an increase in case counts for CMFWF; the greatest increase occurred in residents below the 50th percentile of case volume. Implementation of case minimum requirements may allow for more accurate depiction of resident experience and program strengths with regards to procedural exposure. However, the current case log system measures only case quantity, which may inaccurately depict mastery of given procedures. Future work should focus not only on improving case counts in underperforming residents and training sites, but also on refining metrics that ensure accurate assessment of resident skill for essential orthopedic procedures prior to graduation.

Resident Surgical Skills Web-Based Evaluation: A Comparison of 2 Assessment Tools

BACKGROUND

Evaluation of surgical skill competency is necessary as graduate medical education moves toward a competency-based curriculum. This study by the American Board of Orthopaedic Surgery (ABOS) and the Council of Orthopaedic Residency Directors (CORD) compares 2 web-based evaluation tools that assess the level of autonomy that is demonstrated by residents during surgical procedures in the operating room as measured by faculty.

METHODS

Two hundred and ninety-four residents from 16 orthopaedic surgery residency programs were evaluated by 370 faculty using 2 web-based evaluation tools in a crossover design in which residents requested faculty review of their surgical skills before starting a case. One thousand, one hundred and fifty Ottawa Surgical Competency Operating Room Evaluation (O-Score) assessments, which included a 9-question evaluation of 8 steps of the surgical procedure, were compared with 1,186 P-score evaluations, which included a single-question summative evaluation. Twenty-five different surgical procedures were evaluated.

RESULTS

There were no significant differences in rates of resident requests or faculty completion of the 2 scores. The most common surgical procedures that were assessed were total knee arthroplasty (n = 254, 11%), carpal tunnel release (n = 191, 8%), open reduction and internal fixation (ORIF) of stable hip fractures (n = 170, 7%), ORIF of simple ankle fractures (n = 169, 7%), and total hip arthroplasty (n = 166, 7%). Both instruments disclosed significant differences in competency among entry, intermediate, and advanced-level residents. The findings support the construct validity of the evaluation method. The survey results indicated that >70% of the faculty were confident that use of either the P-score or the O-score allowed them to distinguish a resident who can perform the surgery independently from one who needs additional training.

CONCLUSIONS

This research has led to the modification of the O-score and the P-score into a combined OP-score instrument. The ABOS envisions that the OP-score instrument can be used with an expanded number of surgical procedures as a required element of residency training in the near future.

CLINICAL RELEVANCE

This study allows the profession of orthopaedic surgery education to take a leadership role in the measurement of competence for surgical skills for orthopaedic surgeons in residency training, an important clinically relevant topic to the practice of orthopaedic surgery.

A New, Direct Measure of Thumb Use in Children After Index Pollicization for Congenital Thumb Hypoplasia

PURPOSE

After index pollicization for congenital thumb hypoplasia, time-based hand dexterity tests do not indicate whether the new thumb is being used by a child. The Thumb Grasp and Pinch assessment (T-GAP) is a new outcome measure that classifies grasp and pinch styles to quantify use of the new thumb. The goal of this study was to establish concurrent validity and construct validity in the T-GAP.

METHODS

Data from children treated with index finger pollicization for congenital thumb hypoplasia were retrospectively reviewed. Measures of strength, range of motion, and scores on the Box and Blocks Test (BBT), 9-Hole Peg Test (NHPT), Functional Dexterity Test (FDT), and Task 7 (Heavy Objects) from the Jebsen-Taylor Test (JTT7) were recorded. Patients also completed the T-GAP consisting of 9 age-appropriate tasks, during which grasp patterns were classified. Spearman correlation coefficients were calculated comparing the T-GAP score with scores on the BBT, NHPT, FDT, and JTT7.

RESULTS

We evaluated 21 thumbs in 21 children an average of 71.7 months after pollicization surgery (range, 9-175 months). The T-GAP score was significantly correlated with BBT, NHPT, FDT, and JTT7 (R = 0.69, -0.60,-0.59, and -0.60, respectively). The T-GAP score was significantly correlated with tripod pinch, key pinch, and grip strength (R = 0.77, 0.75, and 0.71, respectively) and with opposition and grasp span (R = 0.50 and 0.52, respectively). The T-GAP was the only functional measure correlated with parent and patient satisfaction with thumb function.

CONCLUSIONS

Concurrent validity was supported by significant correlations between T-GAP score for all 4 dexterity measures. Construct validity was supported by significant correlations between strength and range of motion of the thumb and T-GAP score.

CLINICAL RELEVANCE

This evaluation may help surgeons and therapists better understand results after pollicization and determine whether the new thumb is being incorporated into daily activities.

Outcomes After Surgical Treatment of Spastic Upper Extremity Conditions

Surgical interventions for the spastic upper extremity aim to correct the common deformities of elbow flexion, forearm pronation, wrist flexion and ulnar deviation, and thumb-in-palm deformity. One goal is achieving optimal function and improved limb positioning. Aesthetics of the limb have a profound impact on self-esteem and satisfaction. Surgical deformity correction has not reliably been shown to improve sensory function such as stereognosis. Validated outcome measures are used to present outcomes after surgical treatment of the spastic upper extremity as it relates to motor function and limb positioning, sensory function, and self-esteem.

Orthopaedic Surgery Residency Rotations and Correlation With Orthopaedic In-Training Examination Performance

OBJECTIVE

The Orthopaedic In-Training Examination (OITE) is administered annually and is used to assess medical knowledge of orthopedic surgery residents. Beginning in the 2013 to 2014 academic year, the ACGME expanded the postgraduate year (PGY)-1 curriculum from 3 to 6 months of orthopedic surgery rotations. The purpose of this study is to evaluate the effect of increased PGY-1 orthopedic surgery exposure on medical knowledge as measured by the OITE.

DESIGN

From 2011 to 2013, 24 PGY-2 residents completed 3 months of PGY-1 orthopedic training (Group 1). From 2014 to 2016, 24 PGY-2 residents completed 6 months of PGY-1 orthopedic training (Group 2). The effect of an initial PGY-2 pediatrics rotation (Sub-group A), compared to a trauma rotation (Sub-group B) was also analyzed. The hypothesis of this study is that Group 2 scores higher on the OITE than Group 1. Raw percentage and overall percentile scores for all PGY-2 residents from 2011 to 2016 for the pediatrics subsection, the trauma subsection, and for the overall OITE test in our program were recorded. Group 1 versus Group 2, and Sub-group A versus Sub-group B were compared (Student's t-test).

SETTING

University of Minnesota (Institutional, Tertiary); Gillette Children's Hospital (Institutional, Tertiary); Regions Hospital (Institutional, Tertiary).

PARTICIPANTS

48 PGY-2 residents from 2011 to 2016 were included in the study.

RESULTS

Group 2 achieved higher raw and percentile scores on the OITE during their PGY-2 year than Group 1. Sub-group B scored higher than Sub-group A on all OITE subsections and overall.

CONCLUSIONS

This study suggests that raw percentage and percentile OITE scores improve with an additional 3 months of orthopedic training in the PGY-1 year. Clinical exposure, specifically in orthopedic trauma, correlates with higher OITE performance in our residency program.

Examination of Skill Acquisition and Grader Bias in a Distal Radius Fracture Fixation Model

OBJECTIVES

Primary: Assess the ability of faculty graders to predict the objectively measured strength of distal radius fracture fixation. Secondary: Compare resident skill variation and retention related to other knowable training data.

DESIGN

Residents were allowed 60 minutes to stabilize a standardized distal radius fracture using an assigned fixed-angle volar plate. Faculty observed and subjectively graded the residents without providing real-time feedback. Objective biomechanical evaluation (construct strength and stiffness) was compared to subjective grades. Resident-specific characteristics (sex, PGY, and ACGME case log) were also used to compare the objective data.

SETTING

A simulated operating room in our laboratory.

PARTICIPANTS

Post-graduate year 2, 3, 4, and 5 orthopedic residents.

RESULTS

Primary: Faculty were not successful at predicting objectively measured fixation, and their subjective scoring suggests confirmation bias as PGY increased. Secondary: Resident year-in-training alone did not predict objective measures (p = 0.53), but was predictive of subjective scores (p < 0.001). Skills learned were not always retained, as 29% of residents objectively failed subsequent to passing. Notably, resident-reported case-specific experience alone was inversely correlated with objective fixation strength.

CONCLUSIONS

This testing model enabled the collection of objective and subjective resident skill scores. Faculty graders did not routinely predict objective measures, and their subjective assessment appears biased related to PGY. Also, in vivo case volume alone does not predict objective results. Familiar faculty teaching consistency, and resident grading by external faculty unfamiliar with tested residents, might alter these results.

Protected Time for Research During Orthopaedic Residency Correlates with an Increased Number of Resident Publications

BACKGROUND

The Accreditation Council for Graduate Medical Education (ACGME) requires orthopaedic residency programs to promote scholarship and research, which manifest differently among programs. We assess the impact of protected research time during orthopaedic residency on the number of resident publications.

METHODS

Rotation schedules and resident names were collected from 125 ACGME-accredited U.S. orthopaedic residency programs. Protected research time was classified as 1 of 3 types: (1) block time, (2) longitudinal time, or (3) no dedicated time. In April 2016, we searched residents in postgraduate year (PGY)-3 to PGY-5 on pubmed.gov to generate all orthopaedic publications with a PubMed identifier published during residency. Each publication's 2015 Thomson Reuters Journal Citation Reports 5-Year Journal Impact Factor and resident first authorship were noted. The number of PubMed identifiers for each program was summed and was divided by the number of residents in PGY-3 to PGY-5, giving a mean number of publications per resident. The relationship between output and program research time was compared using t tests and analysis of variance (ANOVA).

RESULTS

A total of 1,690 residents were included, with an overall mean number (and standard deviation) of 1.2 ± 2.4 publications per resident. Eighty-seven programs reported block time, 14 programs reported longitudinal time, and 24 programs reported no time. There was a significant difference (p = 0.02) in the mean number of publications per resident when compared between programs with protected time (1.1 ± 1.2 publications) and programs with no protected time (0.6 ± 0.5 publication). One-way ANOVA demonstrated a significant mean difference across the 3 groups (p < 0.001), with longitudinal time correlating with significantly greater output at 1.9 ± 1.8 publications than block time at 1.0 ± 1.0 publication or no time at 0.6 ± 0.5 publication, a difference that persisted when adjusted to include only impact factors of >0 and exclude case reports (p = 0.0015).

CONCLUSIONS

Both the presence of and the type of dedicated research time correlate with residents' research productivity; further consideration of protected research time during residency is warranted.

CLINICAL RELEVANCE

This article provides objective data with regard to research strategies in training orthopaedic surgeons.

The Frequency of Carpal Tunnel Syndrome in Hurler Syndrome After Peritransplant Enzyme Replacement Therapy: A Retrospective Comparison

PURPOSE

Children with Hurler syndrome (HS) develop carpal tunnel syndrome (CTS) owing to glycosaminoglycan deposition secondary to enzyme deficiency. Advancement in the treatment of the underlying enzyme deficiency now commonly includes peritransplant intravenous enzyme replacement therapy (ERT). The primary objective of this study was to determine if the use of limited ERT in addition to hematopoietic stem cell transplantation (HCT) for the treatment of children with HS reduces the incidence of surgical intervention for CTS compared with a cohort of historical controls treated with HCT alone. The secondary objectives were to evaluate the impact of demographic and transplant-related characteristics on the incidence of CTS. Lastly, the results of surgical treatment of CTS in HS are reported.

METHODS

Medical records for a historical group of 43 HS patients who underwent HCT alone (group 1) were compared with 31 HS patients who underwent HCT + ERT (group 2). Both groups were compared for genotype, age at transplant, sex, transplant graft source, median/ulnar nerve conduction study parameters as well as the incidence and treatment of CTS. Pre- and postoperative nerve conduction studies were compared for children treated surgically for CTS.

RESULTS

The cumulative incidence of CTS at 5 years for HS children treated with HCT + ERT was 51% compared with 47% for HS children treated with HCT alone. The incidence of CTS did not depend upon graft source, age at transplant, or sex. Median nerve conduction velocity for both sensory and motor potentials demonstrated significant improvement after carpal tunnel release.

CONCLUSIONS

Although the administration of ERT prior to and for several months after HCT has become routine in our institution, our findings do not suggest this combined therapy is sufficient to decrease the development of CTS. Surgical intervention for median nerve compression remains the treatment of choice for CTS in HS children.

TYPE OF STUDY/LEVEL OF EVIDENCE

Therapeutic IV.

Acquired Upper Extremity Growth Arrest

This study reviewed the clinical history and management of acquired growth arrest in the upper extremity in pediatric patients. The records of all patients presenting from 1996 to 2012 with radiographically proven acquired growth arrest were reviewed. Records were examined to determine the etiology and site of growth arrest, management, and complications. Patients with tumors or hereditary etiology were excluded. A total of 44 patients (24 boys and 20 girls) with 51 physeal arrests who presented at a mean age of 10.6 years (range, 0.8-18.2 years) were included in the study. The distal radius was the most common site (n=24), followed by the distal humerus (n=8), metacarpal (n=6), distal ulna (n=5), proximal humerus (n=4), radial head (n=3), and olecranon (n=1). Growth arrest was secondary to trauma (n=22), infection (n=11), idiopathy (n=6), inflammation (n=2), compartment syndrome (n=2), and avascular necrosis (n=1). Twenty-six patients (59%) underwent surgical intervention to address deformity caused by the physeal arrest. Operative procedures included ipsilateral unaffected bone epiphysiodesis (n=21), shortening osteotomy (n=10), lengthening osteotomy (n=8), excision of physeal bar or bone fragment (n=2), angular correction osteotomy (n=1), and creation of single bone forearm (n=1). Four complications occurred; 3 of these required additional procedures. Acquired upper extremity growth arrest usually is caused by trauma or infection, and the most frequent site is the distal radius. Growth disturbances due to premature arrest can be treated effectively with epiphysiodesis or osteotomy. In this series, the specific site of anatomic growth arrest was the primary factor in determining treatment. [Orthopedics. 2017; 40(1):e95-e103.].

Idiopathic Fenestrated Complex Syndactyly in a Unique Crisscross Fashion

This case presents surgical treatment of a unique form of syndactyly: an isolated fenestrated, complex, crisscross syndactyly of the right middle and ring fingers. A 2-year-old boy presented with the ring finger lying dorsal and the middle finger lying volar, with the middle phalanges syndactylized. A surgical release was performed with a subsequent z-plasty, 2 years later, for scar elongation. At the age of 4, he has essentially full function of his hand with minimal limitations. This case demonstrates that 2 digits that were syndactylized in a coronal plane (ring finger dorsal and middle finger volar) can be successfully surgically separated.

A 5-Year Update on the Uneven Distribution of Women in Orthopaedic Surgery Residency Training Programs in the United States

BACKGROUND

This study was undertaken to update our report from academic years 2004-2005 through 2008-2009, to include 5 additional years of the Association of American Medical Colleges GME Track data. This study will test the hypothesis that, when compared with the data from 2004-2005 through 2008-2009, there were no substantial changes from 2009-2010 through 2013-2014 in the distribution of orthopaedic surgery residency programs that train female residents and have been accredited by the Accreditation Council for Graduate Medical Education (ACGME).

METHODS

Data for all ACGME-accredited orthopaedic surgery residency training programs in the United States were analyzed for 2009-2010 through 2013-2014, in the same manner as our previous report analyzed data for 2004-2005 through 2008-2009. Programs were classified as having 0, 1, 2, or >2 women in training (i.e., for postgraduate year [PGY]-1 through PGY-5) for each of the 5 academic years. Programs were also analyzed for the percentage of female residents in training and were classified as being above the national average (>20%), similar to the national average (between 10% and 20%), or below the national average (<10%) for each of the 5 academic years.

RESULTS

During the time period of 2004 to 2009, the mean percentage of female trainees in U.S. orthopaedic surgery residency programs was 11.6%, and during the time period of 2009 to 2014, this mean percentage increased to 12.6%. Residency programs in the United States do not train women at an equal rate. In the 5 years examined (2009 to 2014), 30 programs had no female trainees and 49 programs had >20% women enrolled in at least 1 of the 5 years, 8 programs had no female trainees enrolled in any of the 5 years, and 9 programs had >20% women enrolled in each of the 5 years.

CONCLUSIONS

Female medical students continue to pursue orthopaedic surgery as a career at rates lagging behind all other surgical specialties. Not all residency programs train women at equal rates. The period of 2009-2010 through 2013-2014 showed a greater percentage of programs (68%) training ≥2 women than the period of 2004-2005 through 2008-2009 (61%). Obstacles to attracting women to orthopaedic surgery should continue to be identified and to be addressed.

Orthopedic Residency: Are Duty Hours Predictive of Performance?

OBJECTIVE

This study examines the relationship between self-recorded resident work hours and Orthopedic In-training Examination (OITE) scores, resident clinical performance, and American Board of Orthopedic Surgery pass rates. The hypothesis of this study is that increasing duty hours would have a positive correlation with clinical and OITE performance.

DESIGN

Total duty hours and recorded operating room hours from a single orthopedic residency program were extracted from 2006 to 2012. During the same time span, OITE scores, resident clinical scores from the E-Valuation system, and American Board of Orthopedic Surgery pass rates were collected. The correlation between the variables was assessed using the Pearson correlation coefficient's precision statistic.

SETTING

A large public tertiary academic center in the upper Midwestern United States.

PARTICIPANTS

A total of 82 orthopedic surgery residents over 7 years.

RESULTS

A total of 82 residents were matriculated between 2006 and 2012. The average weekly recorded duty hours were as follows: postgraduate year 2 (PGY2) = 60 hours/week (Standard Deviation (SD) ± 4), PGY3 = 59 hours/week (SD ± 5), PGY4 = 51 hours/week (SD ± 4), PGY5 = 49 hours/week (SD ± 3). There was significant variability in the average number of hours worked among residents (range: 2128-3753h/y) for the full academic year. The OITE scores and the work hours were found to be independent of each other (ρ = 0.017, p = 0.825), and no correlation was found between OITE scores and the resident E-value scores (ρ = 0.071, p = 0.34). Residents spent 36% to 48% of their time in the operating room. Second year residents logging more hours scored higher on faculty evaluation of overall competency (ρ = 0.31, p = 0.035). Faculty assessment of technical skills had a positive correlation with operating room duty hours for PGY5 class (ρ = 0.346, p = 0.025).

CONCLUSIONS

A large variation in duty hours exists between resident-logged duty hours. No correlation exists between in-training scores and duty hours. There is a positive correlation between senior resident operating room hours and technical skill scores.

Surgical Coaching from Head-Mounted Video in the Training of Fluoroscopically Guided Articular Fracture Surgery

BACKGROUND

The evolving surgical skills education paradigm in orthopaedics has generated a strong demand for validated educational tools and methodologies. This study aimed to confirm that a one-on-one faculty coaching review of the head-mounted video recording of a resident's surgical performance on a validated articular fracture simulation trainer would substantially improve subsequent performance.

METHODS

Fifteen first-year or second-year orthopaedic surgery residents reduced and fixed a standardized intra-articular tibial plafond fracture model under fluoroscopic guidance. Their performances were recorded by a head-mounted video camera. Prior to repeating the procedure six weeks later, eight subjects (the intervention group) reviewed the video of their performance with an orthopaedic traumatologist, and seven subjects (the control group) did not. Cohort performance was compared with respect to task duration, number of fluoroscopic images, and scores on the Objective Structured Assessment of Technical Skills (OSATS) as evaluated by fellowship-trained orthopaedic traumatologists blinded to the residents' year in training and prior surgical experience.

RESULTS

The initial performance OSATS scores were not significantly different (p ≥ 0.05) between the control and intervention groups. Assessments of their repeat performance showed a significant net interval improvement (p < 0.05) in OSATS scores in the intervention group (mean [and standard deviation], 21 ± 8 points) compared with the control group (6 ± 3 points). The mean fluoroscopy utilization had a significant net decrease (p < 0.05) in the intervention group (-5.4 ± 11.7 points) compared with the control group (5.3 ± 7.0 points). Task duration in the repeat performance was similar between both groups.

CONCLUSIONS

Personalized video-based feedback improved performance on a standardized articular fracture trainer for first-year and second-year residents. The described technique may further enhance resident surgical skills education.

On orthopedic surgical skill prediction--the limited value of traditional testing

OBJECTIVES

Primary: to assess the utility of our distal radius fracture repair model as a tool for examining residents' surgical skills. Secondary: to compare the residents' ability to achieve specific biomechanically measured fracture stability with traditional test scores.

DESIGN

Our laboratory pioneered a model that measures biomechanical qualities of a repaired distal radius fracture. Before participation, all residents to be tested completed specified knowledge examinations. During the laboratory exercise, proctors observed each resident and completed Objective Structured Assessment of Technical Skills forms. At the completion of the laboratory, each specimen was tested biomechanically. Written examinations were completed in a proctored setting and computer examinations at home following the honor system. The laboratory exercise had adequate space and materials and allowed 60 minutes to complete the procedure. Residents had equal access to x-ray imaging.

SETTING

The examination environment of the study resembled an operating room.

PARTICIPANTS

Postgraduate years 3 and 4 orthopedic residents in our program were asked to participate. The institutional review board reviewed and approved the study as exempt.

RESULTS

Fracture repair constructs capable of resisting loads expected during rehabilitation were created by approximately half the residents tested. However, traditional written and computer-based testing methods failed to predict which resident's fracture construct would pass the biomechanical testing. Prior in vivo similar case experience was not predictive.

CONCLUSIONS

The idea that "book smart does not equal street smart" applies to the tested model. To measure surgical skill acquisition and increase public safety related to surgery, it will be necessary to employ new and specific examination methods that identify the skill to be acquired and test the acquisition of this skill as precisely as possible.

Affected and contralateral hand strength and dexterity measures in children with hemiplegic cerebral palsy

PURPOSE

To determine how the affected hemiplegic hand and contralateral dominant hand in children with hemiplegic cerebral palsy compare with age-matched norms for grip strength, pinch strength, and dexterity.

METHODS

We enrolled 37 children with hemiplegic cerebral palsy (26 boys; average age, 9.8 y). Grip and pinch strength and Box and Blocks Test for dexterity were measured in both hands. Affected and contralateral hands results were analyzed and compared with each other and with norms for age and sex.

RESULTS

Affected hands had significantly less grip and pinch strength than the contralateral hands. Subjects transported significantly fewer blocks in one minute with the Box and Blocks Test (mean, 10.8 blocks) with the affected hand than the contralateral hand. Compared with normative values, affected-side grip and pinch strengths were significantly less, whereas contralateral hand grip and pinch strengths were similar. Dexterity in both affected and contralateral hands was significantly less than normative values. Decreased dexterity in the contralateral hand was correlated with decreased nonverbal intelligence quotient.

CONCLUSIONS

Dexterity of the contralateral hand is diminished in children with hemiplegia. Assessment of the contralateral hand may reveal opportunities for therapeutic intervention that improve fine motor function.

TYPE OF STUDY/LEVEL OF EVIDENCE

Therapeutic IV.

Hand function with touch screen technology in children with normal hand formation, congenital differences, and neuromuscular disease

PURPOSE

To measure and compare hand function for children with normal hand development, congenital hand differences (CHD), and neuromuscular disease (NMD) using a function test with touch screen technology designed as an iPhone application.

METHODS

We measured touch screen hand function in 201 children including 113 with normal hand formation, 43 with CHD, and 45 with NMD. The touch screen test was developed on the iOS platform using an Apple iPhone 4. We measured 4 tasks: touching dots on a 3 × 4 grid, dragging shapes, use of the touch screen camera, and typing a line of text. The test takes 60 to 120 seconds and includes a pretest to familiarize the subject with the format. Each task is timed independently and the overall time is recorded.

RESULTS

Children with normal hand development took less time to complete all 4 subtests with increasing age. When comparing children with normal hand development with those with CHD or NMD, in children aged less than 5 years we saw minimal differences; those aged 5 to 6 years with CHD took significantly longer total time; those aged 7 to 8 years with NMD took significantly longer total time; those aged 9 to 11 years with CHD took significantly longer total time; and those aged 12 years and older with NMD took significantly longer total time.

CONCLUSIONS

Touch screen technology has becoming increasingly relevant to hand function in modern society. This study provides standardized age norms and shows that our test discriminates between normal hand development and that in children with CHD or NMD.

TYPE OF STUDY/LEVEL OF EVIDENCE

Diagnostic III.

Tendon transfer surgery in upper-extremity cerebral palsy is more effective than botulinum toxin injections or regular, ongoing therapy

BACKGROUND

For children with upper-extremity cerebral palsy (CP) who meet standard indications for tendon transfer surgery, we hypothesized that surgical treatment would result in greater functional improvement than treatment with botulinum toxin injections or regular, ongoing therapy.

METHODS

Thirty-nine children with upper-extremity CP, who were four to sixteen years of age and surgical candidates for the transfer of the flexor carpi ulnaris to the extensor carpi radialis brevis, pronator teres release, and extensor pollicis longus rerouting with adductor pollicis release, were prospectively assigned, either randomly (twenty-nine patients) or by patient/family preference (ten patients), to one of three treatment groups: surgical treatment (Group 1); botulinum toxin injections (Group 2); or regular, ongoing therapy (Group 3). Seven centers participated. Assessment measurements included active range of motion, pinch and grip strength, stereognosis, and scores as measured with eight additional functional or patient-oriented outcome instruments. Thirty-four patients (twenty-five randomized and nine from the patient-preference arm) were evaluated twelve months post-treatment as the study cohort.

RESULTS

For the primary outcome of the Shriners Hospital Upper Extremity Evaluation (SHUEE) dynamic positional analysis (DPA), significantly greater improvement was seen in Group 1 than in the other two groups (p < 0.001). Improvements in SHUEE DPA reflected improved supination and wrist extension during functional activities after surgical treatment. Group 1 showed more improvement in the Pediatric Quality of Life Inventory (PedsQL) CP module domain of movement and in the Canadian Occupational Performance Measure (COPM) score for satisfaction than Groups 2 and 3. Both Groups 1 and 3 showed more improvement in pinch strength than did Group 2.

CONCLUSIONS

For children with upper-extremity CP who were candidates for standard tendon transfer, surgical treatment was demonstrated to provide greater improvement, of modest magnitude, than botulinum toxin injections or regular, ongoing therapy at twelve months of follow-up for the SHUEE DPA, the PedsQL CP module domain of movement, and COPM satisfaction.

Long-Term Results of Carpal Tunnel and Trigger Finger Releases in a Patient with Hurler Syndrome

CASE

Prior to the emergence of bone marrow transplantation as a treatment for Hurler syndrome, most individuals with this syndrome did not survive into their teenage years. We describe a twenty-three-year-old patient with Hurler syndrome who had been treated with bone marrow transplantation; we focus on the presentation and treatment of the associated carpal tunnel syndrome and trigger digits. After initial trigger digit release and revision bilateral carpal tunnel release with a tenosynovectomy, he maintained symptom-free hand function.

CONCLUSION

Surgical treatment of median nerve compression and trigger digits due to Hurler syndrome is effective in the long term.

Development and validation of a basic arthroscopy skills simulator

PURPOSE

The purpose of our study was to develop a low-fidelity surgical simulator for basic arthroscopic skills training, with the goal of creating a pretrained novice ready with the basic skills necessary for all joint arthroscopic procedures.

METHODS

A panel of education, arthroscopy, and simulation experts designed and evaluated a basic arthroscopic skills training and testing box. Task deconstruction was used to create 2 modules, which incorporate core skills common to all arthroscopic procedures. Core metrics measured were time to completion, number of trials to steady state, and number of errors. Face validity was evaluated using a questionnaire. Construct validity was examined by comparing 8 medical students with 8 expert orthopaedic surgeons.

RESULTS

Surgeons were faster than students on both module 1 (P = .0013), simulating triangulation skills, and module 2 (P = .0190) simulating object manipulation skills. Surgeons demonstrated fewer errors (6.9 errors versus 28.1; P = .0073). All surgeons were able to demonstrate steady state (i.e., perform 2 trials that were within 10% of each other for time to completion and errors) on both modules within 3 trials on each module. Only 2 novices were able to demonstrate steady state on either module, and both did so within 3 trials. Furthermore, face validity of the skills trainer was shown by the expert arthroscopists.

CONCLUSIONS

We describe a basic arthroscopy skills simulator that has face and construct validity. Our expert panel was able to design a simulator that differentiated between experienced arthroscopists and novices.

CLINICAL RELEVANCE

Surgical simulation is an important part of efficient surgical education. This simulator shows good construct and face validity and provides a low-fidelity option for teaching the entry-level arthroscopist.

Epidemiology of congenital upper limb anomalies in a midwest United States population: an assessment using the Oberg, Manske, and Tonkin classification

PURPOSE

To examine the relative presentation frequency of children with upper limb congenital anomalies at 3 Midwestern referral centers using the Oberg, Manske, and Tonkin (OMT) classification and to assess the utility of this new classification system.

METHODS

641 individuals with 653 congenital upper extremity anomalies were identified at 3 hospitals in 2 large metropolitan areas during a 1-year interval. Patients were identified prospectively and the specific upper extremity anomaly and any associated syndromes were confirmed using medical records and radiographs. We applied the OMT classification that categorizes anomalies using a dysmorphology outline as malformations, dysplasias, deformations, and syndromes, and assessed its utility and ease of use.

RESULTS

There were 480 extremities (74%) with a limb malformation including 184 involving the entire limb. Arthrogryposis was the most common of these (53 extremities). Anomalies affecting only the hand plate accounted for 62% (296) of the malformations. Of these, radial polydactyly (15%) was the most common specific anomaly, followed by symbrachydactyly (13%) and cleft hand (11%). Dysplasias were noted in 86 extremities; 55 of these were multiple hereditary exostoses. There were 87 extremities with deformations and 58 of these were trigger digits. A total of 109 children had a syndrome or association. Constriction ring sequence was most common. The OMT was straightforward to use and most anomalies could be easily assigned. There were a few conditions, such as Madelung deformity and symbrachydactyly, that would benefit from clarification on how to best classify them.

CONCLUSIONS

Malformations were the most common congenital anomalies in the 653 upper extremities evaluated over a 1-year period at 3 institutions. We were able to classify all individuals using the OMT classification system.

Neurolysis alone as the treatment for neuroma-in-continuity with more than 50% conduction in infants with upper trunk brachial plexus birth palsy

OBJECT

The debate addressed in this article is that of surgical treatment methods for a neuroma-in-continuity. The authors of this study chose to test the hypothesis that more severe nerve injuries, as distinguished by < 50% conduction across a neuroma-in-continuity, could be treated with neuroma resection and grafting, whereas less severe nerve injuries, with > 50% conduction across the neuroma, could be treated with neurolysis alone.

METHODS

The goal of this study was to compare preoperative and postoperative Active Movement Scale (AMS) scores in children with upper trunk brachial plexus birth injuries treated with neurolysis alone if the neuroma's conductivity was > 50% on intraoperative nerve testing. Seventeen patients (7 male, 10 female) met the criteria for inclusion in this study. Surgery was done when the patients were an average of 10 months old (range 6-19 months). The authors analyzed AMS scores from the preoperative assessment, 1-year postoperative follow-up visit, and subsequent follow-up assessment as close to 3 years after surgery as possible (referred to in this paper as > 2-year postoperative scores).

RESULTS

Comparison of preoperative and 1-year follow-up data showed significant improvement in shoulder abduction, flexion, external rotation, and internal rotation; elbow flexion and supination; and wrist extension. Comparison of preoperative findings and results of assessment at > 2-year follow-up showed significant improvement in shoulder abduction, flexion, external rotation; and elbow flexion and supination. At final follow-up, useful function (AMS score of 6 or 7) was achieved for elbow flexion in 14 of 16 patients, shoulder flexion in 11 of 15 patients, shoulder abduction in 11 of 16 patients, and shoulder external rotation in 5 of 15 patients.

CONCLUSIONS

This report indicates that there is a subgroup of patients who can benefit clinically, with functional improvement of shoulder and elbow function, from treatment with neurolysis alone for upper trunk lesions demonstrating more than 50% conduction across the neuroma on intraoperative nerve testing. Patients with less than 50% conduction, indicating more severe disease, are treated with nerve resection and grafting in the authors' treatment algorithm.

Why do medical students choose orthopaedics as a career?

BACKGROUND

The primary influence on medical students' career choice is their third-year clerkship. However, orthopaedics is not a required rotation in the curriculum of most medical schools. Our goals were to identify factors that motivate students to choose an orthopaedic career and to compare these with the factors that influence students to choose nonorthopaedic disciplines.

METHODS

Fourth-year medical students and orthopaedic residents at the postgraduate year (PGY)-1 level at eight orthopaedic training programs in the United States were surveyed to determine the reasons that they chose orthopaedics instead of other medical or surgical fields.

RESULTS

Of the 622 individuals who responded to our survey, 125 were entering orthopaedics and 497 were not. Although career choice in both groups was most heavily influenced by third and fourth-year clinical rotations and faculty contacts, orthopaedics-bound respondents were more likely than non-orthopaedics-bound respondents to be strongly influenced by experiences and people prior to medical school. Orthopaedics-bound respondents were less likely to report a faculty member as the most important person influencing career choice. Fifty-one percent (sixty-three) of 124 students who selected orthopaedics had already decided to pursue this field prior to their third-year rotation. Patient care was chosen by 71% (347) of 490 non-orthopaedics-bound respondents and 75% (ninety-four) of 125 orthopaedics-bound respondents as the most important factor for pursuing a particular field. Income was not selected as the deciding factor by respondents in either group.

CONCLUSIONS

Although faculty contacts and third-year clinical rotations played an important role in student selection of specialty training, they were less influential for those choosing an orthopaedic career than for those choosing other disciplines. Many students choosing orthopaedics made this decision prior to medical school. We believe that increased exposure to positive clinical role models and experiences during medical school would enhance medical students' options for choosing orthopaedic surgery as a career. Anticipated income did not play a deciding role in career selection.

The uneven distribution of women in orthopaedic surgery resident training programs in the United States

BACKGROUND

Although women represented 58% of undergraduate students and 48% of medical students in the U.S. in the 2008-2009 academic year, only 13% of orthopaedic residents and only 4% of American Academy of Orthopaedic Surgeons (AAOS) Fellows in 2009 were women. Are all orthopaedic surgery programs in the U.S. equal in their ability to attract female medical students and train female orthopaedic surgeons? This study was undertaken to test the hypothesis that all Accreditation Council for Graduate Medical Education (ACGME)-accredited orthopaedic surgery residency programs in the U.S. train a similar number of female residents.

METHODS

Data for all ACGME-accredited orthopaedic surgery residency training programs in the U.S. for five academic years (2004-2005 through 2008-2009) were collected with use of the Graduate Medical Education (GME) Track database.

RESULTS

Orthopaedic residency programs in the U.S. do not train women at an equal frequency. In the academic years from 2004-2005 through 2008-2009, forty-five programs had no female residents during at least one of the five academic years reviewed, and nine programs had no female residents during any of the years. More than fifty orthopaedic residency programs in the U.S. had an average of &lt;10% female trainees over the five-year period, and more than ten programs had an average of &gt;20%. There was no significant change in the distribution among these categories over the five years examined (p = 0.234).

CONCLUSIONS

Significant differences in the representation of women exist among orthopaedic residency training programs in the U.S. Further examination of the characteristics of orthopaedic residency programs that are successful in attracting female residents, particularly the composition of their faculty as role models, will be important in furthering our understanding of how orthopaedic surgery can continue to attract the best and the brightest individuals. Changes in the cultural experiences in programs that have not trained female orthopaedic surgeons, such as an increased number of female faculty, and policies that emphasize diversity may provide a greater opportunity for our orthopaedic profession to attract female medical students.

Surgical technique for thumb-in-palm deformity in cerebral palsy

The most common surgical procedure performed by hand surgeons in cerebral palsy for thumb-in-palm deformity is release of the adductor pollicis muscle from the middle metacarpal origin, with additional release of the thenar muscles or flexor pollicis longus, as indicated, to decrease the flexion adduction forces across the first ray. Tendon transfer to augment extension and abduction of the thumb metacarpal will help avoid recurrence, and it commonly includes rerouting of the extensor pollicis longus. Stabilization of the metacarpophalangeal joint might be necessary if hyperextension deformity exists. The assessment of the patient should occur over several visits to determine the correct combination of procedures that will best help the patient achieve a more functional upper extremity or improve hygiene. With appropriate planned procedure, meticulous surgical technique, and adherence to a postoperative rehabilitation regimen, patients can obtain substantial improvement with thumb-in-palm surgical re-positioning.

Tendon transfers and releases for the forearm, wrist, and hand in spastic hemiplegic cerebral palsy

Cerebral Palsy (CP) is a static disorder of movement and posture secondary to an insult to the developing central nervous system. The peripheral manifestations and functional impairments of this condition vary in severity from mild-to-profound. In hemiplegic CP, 1 side of the body is affected more than the other. Spastic hemiplegia is the most common type and that for which upper extremity surgery is most indicated. Treatment options range from physical therapy and splinting to botulinum toxin A injections (Botox) to tendon transfers to arthrodeses. This article will discuss the indications, preoperative evaluation, our preferred surgical technique, and postoperative protocol for the most commonly used tendon transfers in the upper extremity in spastic hemiplegia.

Wrist arthrodesis in cerebral palsy

PURPOSE

Cerebral palsy patients with spastic wrist deformities can be treated with wrist arthrodesis to improve appearance, hygiene, and function. This study evaluates dorsal plating technique and need for bone grafting as measured by fusion rate, complications, and clinical outcomes.

METHODS

Thirty-four patients (41 wrists) with severe spastic wrist flexion deformities were treated by wrist arthrodesis using a dorsal plating technique. A comprehensive review of charts and radiographs was performed. Twenty-three patients were subjectively evaluated using the Disability Assessment Scale and a visual analog scale assessing appearance, function, hygiene, ease of daily care, pain, and overall satisfaction.

RESULTS

The union rate following dorsal plating was 98% (40/41 wrists). Eighteen patients developed plate irritation requiring hardware removal after union. Five major complications included 4 fractures (1 metacarpal and 3 radius) through screw holes and 1 nonunion. Patient outcome assessment showed that Disability Assessment Scale scores (10, worst-0, best) improved significantly (p = .01), from a preoperative mean of 9.6 to a postoperative mean of 5.5. Visual analog scale scores (0, much worse-10, much better) demonstrated substantial improvements in appearance (7.9), function (6.0), ease of daily care (7.0), and hygiene (6.2). Ninety-four percent of patients were satisfied, with an average satisfaction visual analog scale score of 8.3.

CONCLUSIONS

Wrist arthrodesis using a dorsal plating technique had a high union rate (98%) and a high rate of satisfaction (94%). Hardware complications were common, and consequently, we now routinely recommend hardware removal.

TYPE OF STUDY/LEVEL OF EVIDENCE

Therapeutic IV.

Surgical management of wrist and finger deformity

The surgical results of upper extremity intervention have been shown to improve hand function from paperweight/passive assist function to active assist function. Although children with cerebral palsy commonly have a sensibility deficiency in conjunction with their motor deficiency, several recent studies have disproved the previous doctrine that hand surgery should not be performed on children with sensibility deficiencies. The author's report of 134 children treated surgically showed that preoperatively 50% had impaired two-point discrimination and 75% had impaired stereognosis: impaired sensibility had no adverse effect on surgical results. Eliasson et al reported on 32 children treated surgically with tendon transfers and muscle releases. Impaired sensibility before the surgery did not influence the outcome. In fact, Dahlin et al reported 36 patients treated operatively and followed for 18 months, finding an improvement in stereognosis function associated with the improvement in their motor function, presumably because of improved functional use. Children with cerebral palsy can improve their motor function and perhaps also their sensibility function with appropriately planned and executed tendon release and transfer surgery. Balance of the wrist and fingers is the key clement in improvement of upper limb function.

Functional assessment aided by motion laboratory studies

The physician needs to integrate the results of the assessment of overall patterns of functional use (Table 1), static contractures, dynamic deformities of motor imbalance for multiple levels of involvement (shoulder, elbow, wrist, and hand), and sensory deficiencies. This information is combined with a general assessment of the child's mentation, motivation, and generalized medical condition. Certain patients benefit most from surgical intervention in cerebral palsy. Patients with spastic deformities or flaccid control of specific movements can be helped significantly. In patients with flaccid control of certain movements, such as absent ability to extend the wrist or abduct the thumb, surgery is centered on tendon transfers to augment the patient's ability to perform that movement. In patients with excessive spasticity or musculotendinous contracture, surgery is centered on muscle lengthening. In general, patients with athetosis are not treated surgically; the only surgical treatment considered for the athetotic patient is fusion, as this helps preposition the limb in a desired position and "simplifies" the system for the patient to control. Sensibility deficiencies do not preclude effective tendon transfer but do limit the overall use of the limb; patients with sensibility deficiencies need to be coached to use visual input as their afferent information. Motor deficiencies can be assessed by observation, examination, functional testing, and motion laboratory analysis. Combining an assessment of shoulder, elbow, forearm, wrist, thumb, and finger abilities and disabilities helps provide the physician with an overall plan of upper limb reconstruction using soft tissue releases, tendon transfers, and joint stabilization procedures to address the upper limb functional deficiencies. The ideal candidate for tendon transfer surgery is 7 years of age or older so they can be cooperative with postoperative rehabilitation and motivated to improve the use of their limb. Children with passive use of their limb (Functional Use Classification levels 1-3) can be improved most, on average 2.7 levels to active use of their limb (Functional Use Classification levels 4-6). An overall treatment plan is synthesized, taking into account the child's capabilities, disabilities, and potential, in the context of the child's age and expectations. The assessment techniques discussed in this article are the first step to appropriate treatment.