An Intact Ligamentum Teres Predicts a Superior Prognosis in Patients With Borderline Dysplasia: A Matched-Pair Controlled Study With Minimum 5-Year Outcomes After Hip Arthroscopic Surgery

An Intact Ligamentum Teres Predicts a Superior Prognosis in Patients With Borderline Dysplasia: A Matched-Pair Controlled Study With Minimum 5-Year Outcomes After Hip Arthroscopic Surgery

Authors: Maldonado DR, Chen SL, Walker-Santiago R, Shapira J, Rosinsky PJ, Lall AC, Domb BG

DOI: 10.1177/0363546519898716

Background

The role of hip arthroscopy in borderline dysplasia is debated. This study examines whether the integrity of the ligamentum teres (LT) influences long-term outcomes in this population.

Methods

Matched-pair comparison of patients with borderline dysplasia undergoing hip arthroscopy, grouped by intact vs. torn LT, with minimum 5-year follow-up.

Key Findings

• Patients with intact LT had superior mental health scores and were more likely to achieve a patient acceptable symptomatic state (PASS) for hip function.
• Both groups had generally favorable outcomes, but the intact LT group showed better prognosis in key functional and mental health measures.

Conclusions

Intact ligamentum teres status is a positive prognostic indicator for long-term outcomes after hip arthroscopy in borderline dysplasia.

What Does This Mean for Providers?

Assessment of ligamentum teres integrity should be an integral part of preoperative evaluation in borderline dysplasia cases. Preservation or repair of an intact LT may contribute to improved long-term function and patient satisfaction. Providers should incorporate LT status into surgical planning and patient counseling.