Surgical Management of Achilles Tendon Ruptures in the United States 2006-2020, an ABOS Part II Oral Examination Case List Database Study.

Background: In correlation with a growing body of evidence regarding nonoperative management for Achilles tendon rupture (ATR), studies from Europe and Canada have displayed a decreasing incidence in surgical management, which has not been noted in the United States. The primary objective of this study is to evaluate the US trend in ATR repair volume. Methods: The American Board of Orthopaedic Surgery (ABOS) Part II Oral Examination Case List Database was used. All cases using Current Procedural Terminology codes for primary ATR repair were requested from the years 2006-2020. Total submitted Achilles repair volume, the number of candidates submitting an Achilles repair case, and the overall submitted case volume per examination year was analyzed. Poisson and linear regressions were used to determine statistically significant trends. Results: The total number of Achilles repair cases submitted for the ABOS Part II Oral Examination significantly increased from 2006 to 2011 and then decreased until 2020. Taking Achilles repair cases as a proportion of total orthopaedic cases submitted, the same trend was seen. The number of candidates submitting an Achilles repair case increased from 2006 to 2009 and then decreased until 2020. Foot and Ankle fellowship-trained candidates submitted an increasing number of ATR repair cases per candidate during the time period studied. Conclusion: This is the first study to demonstrate a decline in the volume of ATR repair in the United States. The decline in ATR repair volume seen in the ABOS Part II Case Lists does not match previously published US surgeon practice patterns but is not necessarily generalizable to beyond this period. Although the overall ATR repair volume in the ABOS Part II Case Lists is decreasing, we found Foot and Ankle fellowship-trained surgeons are operating on an increasing number of ATRs during their board collection period. Level of Evidence: Level III, retrospective cohort study.

Readability of Online Foot and Ankle Surgery Patient Education Materials.

Background. Online health education resources are frequently accessed by patients seeking information on orthopaedic conditions and procedures. The objectives of this study were to assess the readability of information provided by the American Orthopaedic Foot and Ankle Society (AOFAS) and compare current levels of readability with previous online material. Methods. This study examined 115 articles classified as "Conditions" or "Treatments" on FootCareMD.org. Readability was assessed using the 6 readability assessment tools: Flesch Reading Ease, Flesch-Kincaid Grade Level (FKGL), Gunning Fog Score, Simple Measure of Gobbledygook (SMOG) Index, Coleman-Liau Index, and the Automated Readability Index. Results. The mean readability score across all metrics ranged from 9.1 to 12.1, corresponding to a 9th- to 12th-grade reading level, with a mean FKGL of 9.2 ± SD 1.1 (range: 6.3-15.0). No articles were written below the recommended US sixth-grade reading level, with only 3 articles at or below an eighth-grade level. Treatment articles had higher mean readability grade levels than condition articles (P = .03). Conclusion. Although the volume and quality of the AOFAS resource Web site has increased, readability of information has worsened since 2008 and remains higher than the recommended reading level for optimal comprehension by the general population.Levels of Evidence: Level IV:Retrospective quantitative analysis.

High-Volume and Privately Owned Ambulatory Surgical Centers Reduce Costs in Achilles Tendon Repair.

BACKGROUND: While Achilles tendon repairs are common, little data exist characterizing the cost drivers of this surgery. PURPOSE: To examine cases of primary Achilles tendon repair, primary repair with graft, and secondary repair to find patient characteristics and surgical variables that significantly drive costs. STUDY DESIGN: Economic and decision analysis; Level of evidence, 3. METHODS: A total of 5955 repairs from 6 states were pulled from the 2014 State Ambulatory Surgery and Services Database under the Current Procedural Terminology codes 27650, 27652, and 27654. Cases were analyzed under univariate analysis to select the key variables driving cost. Variables deemed close to significance (P < .10) were then examined under generalized linear models (GLMs) and evaluated for statistical significance (P < .05). RESULTS: The average cost was $14,951 for primary repair, $23,861 for primary repair with graft, and $20,115 for secondary repair (P < .001). In the GLMs, high-volume ambulatory surgical centers (ASCs) showed a cost savings of $16,987 and $2854 in both the primary with graft and secondary repair groups, respectively (both P < .001). However, for primary repairs, high-volume ASCs had $2264 more in costs than low-volume ASCs (P < .001). In addition, privately owned ASCs showed cost savings compared with hospital-owned ASCs for both primary Achilles repair ($2450; P < .001) and primary repair with graft ($11,072; P = .019). Time in the operating room was also a significant cost, with each minute adding $36 of cost in primary repair and $31 in secondary repair (both P < .001). CONCLUSION: Private ASCs are associated with lower costs for patients undergoing primary Achilles repair, both with and without a graft. Patients undergoing the more complex secondary and primary with graft Achilles repairs had lower costs in facilities with greater caseload.

Variability in Foot and Ankle Case Volume in Orthopaedic Residency Training.

Surgical case volume during orthopaedic surgical residency is a concern among trainees and program directors alike. With an ongoing trend toward further subspecialization and the rapid development of new techniques and devices, the breadth of procedures that residents are exposed to continues to increase. Accreditation Council for Graduate Medical Education surgical case logs from 2009 to 2013 for graduating orthopaedic surgery residents were examined to assess the national averages of orthopaedic procedures logged by graduating orthopaedic surgery residents in the leg/ankle and foot/toes categories. This investigation revealed that there was an 8% increase in the total number of leg/ankle cases and 12% increase in foot/toes cases performed by graduating orthopaedic surgery residents, which has not significantly increased from 2009 to 2013. Across years examined in this study, significant variability existed between the 10th and 90th percentiles for total foot and ankle resident case exposure (P < .05), particularly within ankle arthroscopy, where there was a 15-fold difference in the number of arthroscopy cases performed by residents in the 90th percentile compared with the 10th percentile. The overall volume of foot and ankle cases performed by graduating orthopaedic surgery residents has increased despite not being statistically significantly from 2009 to 2013. LEVELS OF EVIDENCE: Level III: Cohort study.

Arthroscopic Talar Dome Access Using a Standard Versus Wire-Based Traction Method for Ankle Joint Distraction.

PURPOSE: To evaluate the accessibility of the talar dome through anterior and posterior portals for ankle arthroscopy with the standard noninvasive distraction versus wire-based longitudinal distraction using a tensioned wire placed transversely through the calcaneal tuberosity. METHODS: Seven matched pairs of thigh-to-foot specimens underwent ankle arthroscopy with 1 of 2 methods of distraction: a standard noninvasive strapping technique or a calcaneal tuberosity wire-based technique. The order of the arthroscopic approach and use of a distraction method was randomly determined. The areas accessed from both 2-portal anterior and 2-portal posterior approaches were determined by using a molded translucent grid. RESULTS: The mean talar surface accessible by anterior ankle arthroscopy was comparable with noninvasive versus calcaneal wire distraction with 57.8% ± 17.2% (range, 32.9% to 75.7%) versus 61.5% ± 15.2% (range, 38.5% to 79.1%) of the talar dome, respectively (P = .590). The use of calcaneal wire distraction significantly improved posterior talar dome accessibility compared with noninvasive distraction, with 56.4% ± 20.0% (range, 14.4% to 78.0%) versus 39.8% ± 14.9% (range, 20.0% to 57.6%) of the talar dome, respectively (P = .031). CONCLUSIONS: Under the conditions studied, our cadaveric model showed equivalent talar dome access with 2-portal anterior arthroscopy of calcaneal wire-based distraction versus noninvasive strap distraction, but improved access for 2-portal posterior arthroscopy with calcaneal wire-based distraction versus noninvasive strap distraction. CLINICAL RELEVANCE: The posterior 40% of the talar dome is difficult to access via anterior ankle arthroscopy. Posterior calcaneal tuberosity wire-based longitudinal distraction improved arthroscopic access to the centro-posterior talar dome with a posterior arthroscopic approach.

Evaluation of saline load test for simulated traumatic arthrotomies of the ankle.

INTRODUCTION: A tool frequently used for evaluation of a traumatic arthrotomy is the saline load test. No information exists in the current literature guiding what baseline fluid infusion is required to reliably detect or diagnose a traumatic ankle arthrotomy. The purpose of this study was to provide a reliable benchmark when employing the saline load test for complex ankle soft-tissue wounds with suspected intra-articular involvement. MATERIALS AND METHODS: Twenty-one consecutive patients presenting for elective ankle arthroscopy underwent simulated saline load tests. After placement of an approximately 4-mm standard lateral portal, an 18-gauge needle was inserted into the anteromedial ankle joint and normal saline was injected until frank extravasation from the lateral arthrotomy was observed. The amount of saline required to diagnose a simulated traumatic arthrotomy was recorded. RESULTS: The average amount of normal saline that resulted in extravasation was 10.3 cm(3). In order to identify 90% and 95% of simulated ankle arthrotomies, 23 and 30 cm(3) of saline were required, respectively. The average preoperative range of motion did not correlate with saline infusion requirements (r(2)=0.013368). CONCLUSIONS: Based on these results, a minimum infusion of 30 cm(3) is recommended to identify 95% of traumatic arthrotomies approximately 4mm in size. This value needs to be interpreted with the understanding that this study is limited by its inherently simulated nature. An infusion of 30 cm(3) represents a relatively safe and reasonable standard to apply to any potential ankle injury in which joint violation remains in question.

Carpal kinematics after proximal row carpectomy.

PURPOSE: Proximal row carpectomy (PRC) is a clinically useful motion-sparing procedure for the treatment of certain degenerative conditions of the wrist. Clinical outcome studies after PRC have shown that wrist flexion-extension averages approximately 60% of that of the contralateral wrist. The purpose of this study was to determine how the kinematics of the wrist are altered after PRC. METHODS: Eight fresh-frozen cadaver forearms were scanned with computed tomography before and after PRC. Forearms were scanned in 5 different wrist positions (neutral, extension, flexion, radial deviations, and ulnar deviation). Wrists were positioned dynamically and then held statically in a custom fixture through forces applied to the 4 wrist flexor/extensor tendon groups. Three-dimensional computer models of the radius, lunate, and capitate were generated from the computed tomographic images, and the kinematics of the capitate and lunate were calculated relative to the neutral position. For the intact wrist, the motion of the capitate was calculated relative to both the lunate (midcarpal motion) and the radius (overall wrist motion) and the motion of the lunate was calculated relative to the radius (radiocarpal motion). After PRC, only the movement of the capitate relative to the radius was calculated, which represents radiocapitate and overall wrist motion. All motions were plotted in 3 dimensions for purposes of qualitative visualization. RESULTS: After PRC, the capitate articulated with the lunate fossa of the radius for all positions in all samples. Overall wrist motion decreased 28%, 30%, 40%, and 12% in flexion, extension, radial deviation, and ulnar deviation, respectively. Motion at the radiocarpal joint after PRC, however, was greater compared with motion at the radiocarpal and midcarpal joints of the intact wrist during flexion and extension. This was not the case in radial deviation because of impingement of the trapezoid on the radial styloid. In radial and ulnar deviation, motion of the capitate head changed from predominantly rotational in the intact wrist (midcarpal joint) to a combination of rotation and translation after PRC (radiocarpal joint). CONCLUSIONS: Removal of the proximal carpal row decreased normal wrist flexion and extension. Although ulnar deviation was preserved, radial deviation was limited by impingement of the trapezoid on the radial styloid. Radiocapitate range of motion after PRC was greater than capitolunate range of motion in the intact wrists. Compared with previously published requirements, wrist range of motion observed after PRC was sufficient for activities of daily living.

Kinematics of the midcarpal and radiocarpal joint in flexion and extension: an in vitro study.

PURPOSE: To apply carpal kinematic analysis using noninvasive medical imaging to investigate the midcarpal and radiocarpal contributions to wrist flexion and extension in a quasidynamic in vitro model. METHODS: Eight fresh-frozen cadaver wrists were scanned with computed tomography in neutral, full flexion, and full extension. Body-mass-based local coordinate systems were used to track motion of the capitate, lunate, and scaphoid with the radius as a fixed reference. Helical axis motion parameters and Euler angles were calculated for flexion and extension. RESULTS: Minimal out-of-plane carpal motion was noted with the exception of small amounts of ulnar deviation and supination in flexion. Overall wrist flexion was 68 degrees +/- 12 degrees and extension was 50 degrees +/- 12 degrees. In flexion, 75% of wrist motion occurred at the radioscaphoid joint, and 50% occurred at the radiolunate joint. In extension, 92% of wrist motion occurred at the radioscaphoid joint, and 52% occurred at the radiolunate joint. Midcarpal flexion/extension between the capitate and scaphoid was 0 degrees +/- 5 degrees in extension and 10 degrees +/- 13 degrees in flexion. Midcarpal flexion/extension between the capitate and lunate was larger, with 15 degrees +/- 11 degrees in extension and 22 degrees +/- 19 degrees in flexion. CONCLUSIONS: The capitate and scaphoid tend to move together. This results in greater flexion/extension for the scaphoid than the lunate at the radiocarpal joint. The lunate has greater midcarpal motion between it and the capitate than the scaphoid does with the capitate. The engagement between the scaphoid and capitate is particularly evident during wrist extension. Out-of-plane motion was primarily ulnar deviation at the radiocarpal joint during flexion. These results are clinically useful in understanding the consequences of isolated fusions in the treatment of wrist instability.