Outcomes of Hip Arthroscopic Surgery in Patients With Tönnis Grade 1 Osteoarthritis With a Minimum 2-Year Follow-up
Authors: Chandrasekaran S, Gui C, Darwish N, Lodhia P, Suarez-Ahedo C, Domb BG
Am J Sports Med. 2016 Jul;44(7):1781-8.
DOI: 10.1177/0363546516638087
Purpose
To compare clinical outcomes of hip arthroscopy in patients with mild OA (Tönnis 1) versus those without OA (Tönnis 0).
Methods
Matched-pair cohort study with minimum 2-year follow-up; matching for age, sex, BMI, labral and capsular treatment.
Key Findings
- Both Tönnis 0 and 1 groups had significant improvements in PROs and pain scores.
- No significant difference in outcome magnitude between groups.
- Similar revision and THA conversion rates.
Conclusions
Patients with mild osteoarthritis can expect comparable benefits from hip arthroscopy as those without OA.
What this means for providers
- Mild OA should not be considered an absolute contraindication to hip arthroscopy.
- Careful patient selection remains critical; outcomes are favorable with appropriate indications.
- Counseling patients with Tönnis 1 OA should emphasize realistic expectations but also potential for substantial improvement.