Central Compartment Release Versus Lesser Trochanter Release of the Iliopsoas Tendon for the Treatment of Internal Snapping Hip: A Comparative Study
Bibliographic record
Abstract
PURPOSE: To evaluate the results of 2 different techniques of endoscopic iliopsoas tendon release in the treatment of internal snapping hip syndrome. METHODS: Between January 2008 and January 2012, a consecutive series of patients with the diagnosis of internal snapping hip syndrome were treated with endoscopic release of the iliopsoas tendon. The patients were divided into 2 groups according to the surgical technique used. Group 1 was treated with endoscopic iliopsoas tendon release at the lesser trochanter, and group 2 was treated with iliopsoas release from the central compartment. Hip arthroscopy of both the central and peripheral compartments was performed in both groups by the lateral approach. Associated injuries were identified and treated arthroscopically. The postoperative physical therapy protocol was the same for both groups. Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) scores were evaluated preoperatively and at last follow-up at a minimum of 24 months. RESULTS: Twenty patients were included in the study: 6 in group 1 (4 male and 2 female patients; mean age, 35.6 years) and 14 in group 2 (5 male and 9 female patients; mean age, 32.7 years). Associated injuries were found and treated in 4 patients in group 1 and 10 patients in group 2. Every patient in both groups had an improvement in the WOMAC score. One patient in group 2 presented with recurrence of snapping that required surgical intervention. No complications were seen. CONCLUSIONS: Both central compartment release and release at the lesser trochanter produced favorable results, based on WOMAC scores, for the treatment of internal snapping hip syndrome. LEVEL OF EVIDENCE: Level IV, therapeutic case series.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".