TENDINopathy Severity assessment-Achilles (TENDINS-A): evaluation of reliability and validity in accordance with COSMIN recommendations.

OBJECTIVE: To evaluate the construct validity (structural validity and hypothesis testing), reliability (test-retest reliability, measurement error and internal consistency) and minimal important change (MIC) of the 13-item TENDINopathy Severity assessment-Achilles (TENDINS-A). METHODS: Participants with Achilles pain completed an online survey including: demographics, TENDINS-A, Foot and Ankle Outcome Score (FAOS) and Victorian Institute of Sport Assessment-Achilles (VISA-A). Exploratory factor analysis (EFA) assessed dimensionality. Confirmatory factor analysis (CFA) assessed structural validity (root mean square error of approximation (RMSEA); Comparative Fit Index (CFI); Tucker-Lewis Index (TLI); standardised root measure square (SRMS)). Correlations between TENDINS-A and the FAOS or VISA-A assessed hypothesis testing. Intraclass correlation (ICC) assessed test-retest reliability. Cronbach's alpha assessed internal consistency. SE of the measurement (SEM) assessed measurement error. A distribution-based approach assessed MIC. RESULTS: 79 participants (51% female) with a mean (SD) age=42.6 (13.0) years, height=175.0 (11.7) cm and body mass=82.0 (19.1) kg were included. EFA identified three meaningful factors, proposed as pain, symptoms and function. The best model identified using CFA for TENDINS-A had structural validity (RMSEA=0.101, CFI=0.959, TLI=0.947, SRMS=0.068), which included three factors (pain, symptoms and function), but excluded three items from the original TENDINS-A. TENDINS-A exhibited moderate positive correlation with FAOS (r=0.598, p<0.001) and a moderate negative correlation with VISA-A (r=-0.639, p<0.001). Reliability of the TENDINS-A was excellent (ICC=0.930; Cronbach's α=0.808; SEM=6.54 units), with an MIC of 12 units. CONCLUSIONS: Our evaluation of the revised 10-item TENDINS-A determined it has construct validity and excellent reliability, compared with the VISA-A and FAOS which lack content and construct validity. The TENDINS-A is recommended as the preferred patient-reported outcome measure to assess disability in people with Achilles tendinopathy.

Diagnostic Imaging for Achilles Tendinopathy: Unnecessary Scans? Valuable Insights? Multidisciplinary Clinician-Scientists Present a Nuanced View.

SYNOPSIS: Clinical practice guidelines for Achilles tendinopathy do not recommend imaging to inform diagnosis. However, there is considerable variation in how imaging is used, particularly in research and sports. Early imaging risks that people who see the images presume that what they "see" as pathology is the primary cause of pain; patients might end up receiving invasive treatments on the basis of the image when rehabilitation may suffice. On the other hand, imaging can help rule out Achilles tendinopathy and identify differential diagnoses. As more rehabilitation clinicians are direct access practitioners and take on expanded roles as primary health practitioners, ultrasound imaging might serve as a valuable point-of-care tool for diagnosis, identifying conditions that warrant referral and managing conditions like Achilles tendinopathy. We argue that the value of ultrasound imaging to diagnose tendinopathy outweighs the potential limitations. J Orthop Sports Phys Ther 2024;54(1):1-4. Epub 16 November 2023. doi:10.2519/jospt.2023.12255.

TENDINopathy Severity Assessment - Achilles (TENDINS-A): Development and Content Validity Assessment of a New Patient-Reported Outcome Measure for Achilles Tendinopathy.

OBJECTIVE: To develop a new patient-reported outcome measure (PROM) assessing TENDINopathy Severity of the Achilles (TENDINS-Achilles) and evaluate its content validity. DESIGN: Mixed-methods, modified Delphi. METHODS: We performed 1 round of semistructured one-on-one interview responses with professionals and patients, for initial item generation. This was followed by 1 round of survey responses for professionals and a final round of semistructured one-on-one interviews with patients. The work culminated in a PROM to quantify Achilles tendinopathy severity under the core health domain of disability. Participants identified 3 subdomains contributing to the severity of disability of Achilles tendinopathy: pain, symptoms, and functional capacity. RESULTS: All 8 patient participants invited to participate were enrolled. Forty professional participants (50% women, six different continents) were invited to participate and 30 were enrolled (75% response rate). Therefore, a total of 30 professionals and 8 patients were included within this study. Following 3 rounds of qualitative or quantitative feedback, this study has established the content validity of TENDINS-A (good relevance, comprehensibility, and comprehensiveness) as a new PROM to assess the severity of Achilles tendinopathy, which assesses aspects of pain, symptoms, and functional capacity. CONCLUSION: TENDINS-A has established content validity and is appropriate for use with clinical and research populations. We recommend users interpret TENDINS-A results cautiously, until further testing evaluates the most appropriate scoring scale, reliability, construct validity, criterion validity, and responsiveness of TENDINS-A. Until these psychometric properties are established, we suggest using TENDINS-A alongside existing tools. J Orthop Sports Phys Ther 2023;53(11):1-16. Epub: 24 August 2023. doi:10.2519/jospt.2023.11964.

Republication of "Evidence Versus Practice: Operative Treatment Preferences in Hallux Valgus".

Background: There is substantial variability in the operative treatment of hallux valgus despite the existence of high quality evidence to guide treatment decisions. The purpose of this study was to determine the current trends in the treatment of mild, moderate, and severe hallux valgus and if greater degrees of consensus correlate with the presence of higher-level evidence. Methods: Members of the American Orthopaedic Foot & Ankle Society completed a 14-item survey. A total of 131 (14%) of 922 members completed the survey. Three cases representing 3 stages of HV were presented, and respondents selected their preferred treatment. Preferred forms of proximal and distal metatarsal osteotomies, as well as mode of fixation for each, were inquired. Results: In the treatment of mild hallux valgus without second metatarsalgia, 80% of those surveyed chose a distal metatarsal osteotomy, while, if second metatarsalgia was present, 56% chose a distal metatarsal osteotomy with a second metatarsal-shortening osteotomy. In the treatment of moderate hallux valgus, there was generally less consensus, while, in the treatment of severe hallux valgus, a majority of those surveyed chose a Lapidus procedure, with the addition of a second metatarsal-shortening osteotomy in the presence of second metatarsalgia. The most popular distal and proximal metatarsal osteotomies, respectively, were chevron osteotomy (80%) and opening wedge osteotomy (33%). The presence of Level I evidence did not significantly correlate with higher degrees of consensus. Conclusion: Despite the existence of high-quality evidence supporting the use of certain procedures in the treatment of HV, there exists an apparent lack of consensus among surgeons about the choice of surgical procedures. Moreover, higher-level evidence was not correlated with greater consensus in hallux valgus. Level of Evidence: Level II.

Combining radiographic and CT measurements to rival MRI for the diagnosis of acute isolated syndesmotic injury.

BACKGROUND: Acute isolated syndesmotic injuries (AISIs) have a high potential to be misdiagnosed or underdiagnosed at initial presentation to the hospital. Although magnetic resonance imaging (MRI) is the gold standard in noninvasive diagnostics, it is not always available immediately and is much more expensive than other imaging modalities. This study identifies improvements in conventional radiography and computed tomography (CT) to diagnose AISI and aims to reduce the number of MRI scans needed to verify the diagnosis. METHODS: A retrospective case match control study was conducted by searching our trauma database between 2008 and 2022. A study group of patients with AISI (n = 64) and a control group of patients without AISI (n = 76) were formed to generate an equal number of images from both groups (62 radiographs and 22 CT scans). A total of 16 parameters that quantify the distal tibiofibular relation in injured and uninjured ankles were analyzed. For statistical analysis, a two-sided t-test was applied to calculate significant differences (p < 0.05). In a further step, a receiver operating characteristic curve (ROC) was used to determine cut-off values for the most significant parameters. RESULTS: The most significant measurement (p < 0.001) on axial CT scans was the syndesmotic area (SA). The ROC curve revealed an area under the curve (AUC) of 0.94 (95% CI 0.86-1.0) and a cut-off value of 71.68 mm2 that shows a sensitivity and specificity of 95.5% and 81.8%, respectively. CONCLUSION: This study suggests that radiographic imaging could represent an equally accurate alternative to MRI. These methods might generate the correct diagnosis faster due to their availability and inexpensiveness. By applying our new cut-off values in a clinical setting, the number of underdiagnosed and untreated unstable syndesmotic injuries could be reduced. LEVEL OF EVIDENCE: III, retrospective comparative study.

Defining Operative Indications in Lisfranc Injuries: A Systematic Review.

OBJECTIVE: The aim of this review was to determine operative indications for Lisfranc injuries. METHODS: A systematic review using a MEDLINE literature search was performed using the index "Lisfranc Injury" from 1980 onward using PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analysis) guidelines where applicable. Inclusion criteria were all clinical studies reporting on the management of Lisfranc injuries obtained via the search index, including case reports, review articles, cohort studies, and randomized trials. Non-English-language articles, inaccessible articles, those not relevant to the management of Lisfranc injuries (biomechanical, cadaveric, and technique articles), and those that did not explicitly state operative indications (vague or absent indications) were excluded. RESULTS: After identifying 737 studies, the full text of 391 studies was reviewed, and 58 reports providing explicit operative indications were included in the final analysis. Fifty-one (81.1%) studies provided diastasis cutoffs varying ≥2 mm (35/58; 60.4%), ≥1 mm (13; 22.4%), and ≥3 mm (3; 5.2%); the diastasis location was most commonly unspecified (31/58; 53.5%) or varied between combinations of metatarsal, tarsal, cuboid, and cuneiform bones (20/58; 27.6%). Specific imaging criteria for surgery included an avulsion fracture or fleck sign (3/58; 5.2%), arch height loss (3/58; 5.2%), and a tear on magnetic resonance imaging (5; 8.6%). The 11 (19%) studies defining operative indications in terms of classification schemes used the Nunley and Vertullo (8/58; 13.8%), Myerson (2; 3.5%), and Buehren (1; 1.7%) systems. Twenty-one (36.2%) studies provided multiple operative indications. CONCLUSION: The most common Lisfranc operative indications among the limited reporting studies varied from a 1- to 3-mm diastasis across several locations. It is imperative for operative indications to be reported with an increased frequency and in a homogenous fashion to guide the clinical management of these subtle injuries. LEVELS OF EVIDENCE: Level IV; systematic Review.

A systematic review of the patient reported outcome measures utilized in level 1 randomized controlled trials involving achilles tendon ruptures.

BACKGROUND: Patient Reported Outcome Measures (PROMs) are utilized in level 1 randomized controlled trials involving Achilles tendon ruptures. However, the characteristics of these PROMs and current practices has not yet been reported. We hypothesize that there will be heterogeneous PROM usage in this context. METHODS: A PubMed and Embase systematic review was performed including all dates up to July 27th, 2022, assessing Achilles tendon ruptures in level 1 studies using the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines where applicable. Inclusion criteria were all randomized controlled clinical studies involving Achilles tendon injuries. Studies that: (1) were not level 1 evidence (including editorial, commentary, review, or technique articles), (2) omitted outcome data or PROMs, (3) included injuries aside from Achilles tendon ruptures, (4) involved non-human or cadaveric subjects, (5) were not written in English, and (6) were duplicates were excluded. Demographics and outcome measures were assessed in the studies included for final review. RESULTS: Out of 18,980 initial results, 46 studies were included for final review. The average number of patients per study was 65.5. Mean follow up was 25 months. The most common study design involved comparing two different rehabilitation interventions (48 %). Twenty different outcome measures were reported including the Achilles tendon rupture score (ATRS) (48 %), followed by the American Orthopedic Foot and Ankle score Ankle-Hindfoot score (AOFAS-AH) (46 %), the Leppilahti score (20 %), and the RAND-36/Short Form (SF) - 36/SF-12 scores (20 %). An average of 1.4 measures were reported per study. CONCLUSION: Significant heterogeneity exists in PROM usage among level 1 studies involving Achilles tendon ruptures, which prevents meaningful interpretation of these data across multiple studies. We advocate for usage of at least the disease-specific Achilles Tendon Rupture score and a global, quality of life (QOL) survey such as the SF-36/12/RAND-36. Future literature should provide more evidence-based guidelines for PROM usage in this context. LEVEL OF EVIDENCE: Level IV; Systematic Review.

Surgical Treatment of the Flexible, Progressive Collapsing Foot: Deformities, Definitions, and Decisions.

The complex adult acquired flatfoot deformity involves progressive collapse of the foot with attenuation of medial soft tissues such as the posterior tibialis tendon and spring ligament complex. Multiple deformities at different levels can coexist in the collapsed foot, including hindfoot valgus, midfoot abduction, forefoot varus, and valgus ankle instability. Definitions of flatfoot have evolved to encapsulate the peritalar basis of the deformity, with instability around the talus as the fulcrum. The goals of treatment are to minimize pain, dysfunction, and progressive deformity. Some treatment options directly address the pathologic areas, such as tendon transfer for posterior tibialis tendon dysfunction and spring ligament reconstruction. Others such as calcaneal osteotomies secondarily counteract the primary ligamentous dysfunction and realign the foot to neutralize deforming forces. Selective fusions of the hindfoot and medial column are also viable options to correct the deformity at the joint level when appropriate. The treatment selected depends on flexibility and locations of the deformity, and ultimately patient-specific factors.

Revision Surgery and Wound Complications with Minimally Invasive Compared to Open Achilles Tendon Repair: A Retrospective Comparative Study of 116 Patients.

The current study analyzed revision surgery rate and wound complications of patients with Achilles tendon ruptures that received either minimally invasive repair or open standard repair. A retrospective chart review of patients that had Achilles tendon repair performed using either an open or minimally invasive technique was conducted. Primary outcomes were revision surgery rate and wound complication rate. Twenty-nine (25.0%) patients had the minimally invasive approach, while 87 (75.0%) had the open approach. On average there were 0.16 additional surgeries per patient in the open group versus none in the minimally invasive group (p = 0.003). There were 13 wound-related complications, all of which were in the open group (p = 0.06). Revision surgery rates are significantly higher for patients treated with open Achilles repair versus those treated with a minimally invasive technique. Patients may benefit from a minimally invasive as opposed to open technique. (Journal of Surgical Orthopaedic Advances 32(3):173-176, 2023).

Rehabilitation following operative treatment of acute Achilles tendon ruptures: a systematic review and meta-analysis.

Purpose: The aim of this systematic review and meta-analysis was to compare re-rupture rates, complication rates, functional outcomes, as well as return to work (RTW)/sport (RTS) among different rehabilitation protocols following operative treatment of acute Achilles tendon ruptures. Methods: Systematic review and meta-analysis was conducted according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. Five databases were searched for randomized controlled trials (RCTs) comparing at least two rehabilitation protocols following surgical repair of acute Achilles tendon ruptures. Rehabilitation protocols were classified as a variation of either non-weightbearing (NWB) or weightbearing (WB) and immobilization (IM) or mobilization (M). The data collection consisted of re-ruptures, complications, and RTW/RTS. Results: Out of 2760 studies screened, 20 RCTs with 1007 patients were eligible. Fourteen studies included a group consisting of WB + M (Group 1), 11 of WB + IM (Group 2), 3 of NWB + M (Group 3), and 13 of NWB + IM (Group 4). Outcome parameters available for a meta-analysis were re-ruptures, complications, RTW, and RTS. Re-ruptures overall occurred in 2.7%, with prevalences ranging between 0.04 and 0.08. Major complications occurred in 2.6%, with prevalences ranging between 0.02 and 0.03. Minor complications occurred in 11.8% with prevalances ranging between 0.04 to 0.17. Comparing the odds-ratios between the four different groups revealed no significant differences with overall favourable results for group 1 (WB+M). Conclusion: Early functional rehabilitation protocols with early ankle M and WB following surgical repair of acute Achilles tendon ruptures are safe and they apparently allow for a quicker RTW and RTS and seem to lead to favourable results.

Rotational abnormalities in dysplastic hips and how to predict acetabular torsion.

OBJECTIVES: The aim of this study was to investigate the degree to which conventional radiography can represent the acetabular and femoral rotational alignment profile between dysplastic and borderline-dysplastic hips. METHODS: A retrospective trial was conducted including 56 borderline-dysplastic and dysplastic hips at a mean age of 28.9 years (range from 18 to 46). Inclusion criteria consisted of symptomatic patients with hip dysplasia undergoing 2-dimensional radiography as well as computed tomography. On radiography, the lateral center edge angle, acetabular hip index, hip lateralization index, acetabular index angle, and the Sharp angle were measured, and the presence of a crossover sign was noted. In computed tomography, the full rotational profile of the lower limb was measured. RESULTS: Significant correlations were observed in the overall analysis between the anteversion of the acetabulum and the hip lateralization index (mean 0.56, coefficient of regression (CoR) -32.35, p = 0.011) as well as the acetabular index angle with a mean of 11.50 (CoR 0.544, p = 0.018). Similar results were found in the subgroup of dysplastic hips with an acetabular index angle of 13.9 (p = 0.013, CoR 0.74). For the borderline-dysplastic group, no significant correlations between the pelvis radiography and rotational CT were seen. CONCLUSION: Although the femoral and acetabular torsion cannot be predicted from x-rays, the anteversion of the acetabulum correlates with the acetabular index angle, the hip lateralization index, and eventually the beta angle in dysplastic hips. For borderline-dysplastic hips, such results did not show up, which strongly illustrates the need for computed tomography in these cases. KEY POINTS: • Much of the current literature focuses on rotational alignment especially with respect to the femur and tibia in healthy patients, although little is known about the acetabular, femoral, and tibial torsion in dysplastic hips. • This is the first study showing significant correlations between the anteversion of the acetabulum and the hip lateralization index as well as the acetabular inclination angle. Also, it is the first study to provide a mechanism for estimation of the torsion of the acetabulum with plain radiography in dysplastic hips. • In borderline-dysplastic hips, no significant correlation was found, which raises the question if a simple x-ray has enough validity to address the acetabular deformity with surgery.

The Fragility of Statistical Findings in Achilles Tendon Injury Research: A Systematic Review.

INTRODUCTION: Probability analysis with the reporting of P values is often used to determine the statistical significance of study findings in the Achilles literature. The purpose of this study was to determine the utility of applying a fragility analysis to comparative trials evaluating Achilles tendon injuries. METHODS: We identified all dichotomous outcome data for comparative studies of Achilles tendon injuries published in 11 orthopaedic journals from 2000 to 2020. The fragility index (FI) was determined by the number of event reversals required to change a P value from less than 0.05 to greater than 0.05, or vice-versa. The associated fragility quotient was determined by dividing the FI by the sample size. RESULTS: Of the 51,357 studies screened, 1,487 met the search criteria, with 51 comparative studies and 177 total outcome events included for analysis. The overall FI was only 4 with an associated fragility quotient of 0.048. One-half of the studies failed to report lost to follow-up data, with an additional 21.6% reporting loss to follow-up of greater than or equal to 4. CONCLUSION: Our fragility analysis suggests that Achilles tendon injury outcomes are not as statistically stable as previously thought and should be interpreted with caution.

Economic Impact of Unused Surgical Instruments in an Orthopaedic Surgery Department at an Academic Medical Center: A Prospective Cross-sectional Study.

Orthopaedic surgical trays contain unused instruments, but we do not know which specific instruments go unused nor do we know the savings from eliminating them from a given tray. This was a single-site, observational study conducted at an academic medical center. The primary outcome was type of unused instruments and percentage of instruments used in two commonly used surgical trays. The secondary outcome was cost savings in United States dollars (USD) that could be attained by eliminating these instruments. In the first tray, five instruments (10.6%) were unused in any of 37 observed cases. In the second tray, nineteen instruments (19.6%) were unused in 37 observed cases. The total annual savings from replacement cost analysis and reprocessing cost analysis was $6,597.00 USD. Unused instruments are common in surgical trays. Eliminating unused instruments can result in immediate cost savings. (Journal of Surgical Orthopaedic Advances 30(3):131-135, 2021).

Revision Lateral Ankle Reconstruction 40 Years After Chrisman-Snook Procedure: A Case Report.

CASE: A 70-year-old active woman presented with lateral ankle instability 40 years after a lateral ankle reconstruction procedure. Examination demonstrated gross instability, and advanced imaging revealed attenuation of her previous graft. She underwent anatomic reconstruction through a modified Brostrom-Gould technique and was able to return to hiking without pain. CONCLUSION: Recurrent lateral ankle instability after reconstruction represents a unique challenge for orthopaedic surgeons. Utilization of a modified Brostrom-Gould procedure with suture tape augmentation is a promising alternative to allograft or autograft reconstruction for patients with active lifestyle goals in the context of recurrent instability.

Functional Outcomes of Insertional Achilles Tendinopathy Treatment: A Systematic Review.

BACKGROUND: Achilles tendinopathy is a common clinical problem that can be either insertional or noninsertional, and effective treatment of each type can vary. We sought to investigate the current evidence on different treatment methods for insertional Achilles tendinopathy with a focus on functional outcomes. METHODS: We performed a systematic review of the available literature using the PubMed/MEDLINE and Cochrane Central Register of Controlled Trials databases. Data from included studies were categorized according to treatment method and reported with respect to functional outcomes and complications. RESULTS: A total of 1,457 abstracts were reviewed; 54 studies with 2,177 patients met the inclusion criteria. Among the 54 studies, 6 operative techniques and 6 nonoperative treatments were evaluated. CONCLUSIONS: Eccentric exercises and low-energy extracorporeal shockwave therapy (ESWT) have the greatest evidence for the initial management of insertional Achilles tendinopathy. ESWT has been increasingly studied in recent years, but more high-quality evidence is needed. Operative treatment with tenotomy, debridement, retrocalcaneal bursectomy, and calcaneal exostectomy is effective. Flexor hallucis longus tendon transfer may benefit cases of more severe disease. Minimally invasive procedures have a potential role in the treatment algorithm and require more rigorous study. LEVEL OF EVIDENCE: Therapeutic Level IV. See Instructions for Authors for a complete description of levels of evidence.

Intramedullary fixation of fibula fractures: A systematic review.

INTRODUCTION: Distal fibula fractures are common injuries that often require open reduction internal fixation. Intramedullary fixation of the fibula has been used historically, and interest has been renewed somewhat recently, although there is limited data assessing outcomes after intramedullary fibular fixation. The purpose of this study was to systematically evaluate the literature as it relates to the clinical and functional outcome after fibular fracture fixation using an intramedullary device. METHODS: A literature review on Medline/Pubmed, EMBASE, Cochrane and Google was performed. In total, 1994 abstracts were reviewed of which 30 articles in English, German and French were included, all of which evaluated the clinical and functional outcome after fibular nail osteosynthesis. RESULTS: Within the 30 studies, a total of 1116/1380 patients were treated with a fibular nail between 1986 and 2018. In total 11 different devices were investigated. Six articles compared fibular nail versus plate osteosynthesis and in five cases a prospective study was performed. The complication rate varied somewhat widely based on the implants used. The mean union rate was 99.1% with a mean follow-up of 19.0 months. In comparison to plate fixation the nail was superior in terms of complication rate in most studies. No unified assessment of functional outcome was used, and so comparison between studies was difficult. However, good and excellent results were obtained in 73%-100% of patients. CONCLUSION: Current data on intramedullary fixation of the fibula is limited and suffers significantly from inconsistency in outcome reporting. It remains to be seen whether the potential advantages of intramedullary implants can both maintain the good results of other implants and improve on some aspects of more commonly used implants. LEVEL OF EVIDENCE: III, systematic review.

Risk Factors for Anterior Tibial Tendon Pathology.

BACKGROUND: Though the tibialis anterior (TA) serves a vital role in ankle dorsiflexion, there is little information regarding risk factors and demographic information that might predispose one to tendinopathy or rupture. This study investigates the features of patients in a single institution who presented with either TA tendinopathy or rupture. The circumstances surrounding rupture were also noted. METHODS: ICD-9/10 codes were used to find patients who presented with TA pathology to 2 foot and ankle surgeons at 1 academic medical center from 2011 to 2018. Patient characteristics were noted, including age, sex, body mass index, and the presence of a gastrocnemius equinus contracture. Characteristics of patients with traumatic and atraumatic ruptures were compared. RESULTS: Ninety-four patients presented between 2011 and 2018 (79 cases of tendinopathy and 15 ruptures). The average patient age was 56 years, and the ratio of women to men was 74:20 (3.7:1). With regard to those who experienced rupture, there were 2 ruptures directly related to athletic activity (traumatic), whereas 13 ruptures were found on examination with no overt history of injury (atraumatic). The average age for patients with traumatic ruptures was 39 years compared with 73 years for those with atraumatic rupture (P < .05). CONCLUSION: This study investigates the features of patients in a single institution who presented with TA pathology. With regard to tendon ruptures, traumatic ruptures tend to occur in younger patients, whereas older patients are more likely to suffer atraumatic ruptures. Nonoperative treatment often appears to be effective for TA pathology. LEVEL OF EVIDENCE: Level III, retrospective comparative series.