Please login to view this media
- Talk
- 15/09/2021
- Canada
Short External Rotator Tendon Integrity During Anterior Approach Total Hip Arthroplasty – A Prospective Cohort MRI Study
Description
The speech presented by Rajrishi Sharma discusses a prospective MRI study on the integrity of short external rotator tendons during anterior approach total hip arthroplasty. Acknowledging the ongoing COVID-19 pandemic, Sharma thanks the Canadian Orthopaedic Association (COA) for the opportunity to present findings. The introduction highlights the anterior approach's advantages, including rapid recovery and minimal dislocation risk, while it emphasizes the importance of the short external rotators, particularly the piriformis, obturator internus, and externus tendons.
The study aims to determine the incidence of unintentional tendon releases by comparing intra-operative observations with post-operative MRI results for patients who underwent this procedure. With a sample size of 25 patients, baseline demographics were collected, and MRIs were utilized both preoperatively and postoperatively to evaluate tendon conditions. The methodologies were meticulously outlined, detailing specimen assessments, surgical techniques, and criteria for post-operative MRI evaluations by trained radiologists.
Results from the study indicated an absence of pre-operative tendon ruptures but revealed a significant number of tendon releases post-surgery, particularly in the obturator internus and piriformis. The findings suggest that these injuries often go unnoticed during surgery, attributed to anatomical challenges and surgical maneuvers, including lateralization which can inadvertently damage these tendons during femoral broaching. The conclusion posits that the favorable outcomes associated with the anterior approach may not solely be due to the state of the short external rotators, indicating that other structural components, like the IT band and gluteal musculature, also play critical roles in recovery and overall function post-operative.