ArticleArchives of orthopaedic and trauma surgery2022
Arthroscopic surgery for femoroacetabular impingement has limited effect in patients with Tönnis grade-2 at 4-year follow-up.
Article in Archives of orthopaedic and trauma surgery, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
3 citing papers in PubMed, 3 citations in OpenAlex.
- Revision hip arthroscopy: Current concepts and considerations in diagnosis, evaluation, and management.Bulletin of the Hospital for Joint Disease (2013) · 2026Review
- Mini-open Femoroacetabular Osteoplasty in Patients With Tönnis Grade 2 or Higher Osteoarthritis is Associated With a Higher Risk of Subsequent Conversion to THA.Clinical orthopaedics and related research · 2024Article
- Patient Factors Influencing Outcomes at 12-Year Follow-up of Hip Arthroscopy for Femoroacetabular Impingement.The American journal of sports medicine · 2024Article
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Authors and funding
6 authors at 1 institution in 1 country.
Funding
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Abstract
introductionThis study evaluated intraoperative findings and outcomes in Tönnis grade-2 patients after hip arthroscopy and compared these results with patients with Tönnis grade-0 and grade-1. MATERIALS AND
methodsRetrospective cohort study of patients undergoing hip arthroscopy between January 2013 and December 2017. Patients were divided into either Tönnis grade-2, grade-1, and grade-0 osteoarthritis groups. Labral and chondral status were evaluated. Radiographic analysis, modified Harris hip score (mHHS), a self-administered Hip Outcome Score (HOS) questionnaire, with activity of daily living (ADL) and sports subscale (SSS), and a self-administered short version of the International Hip Outcome Tool (IHOT-12) were assessed at 6, 12 months, and then yearly. Clinical meaningful outcomes were measured with the minimal clinical important difference (MCID), patient acceptable symptom state (PASS), and substantial clinical benefit (SCB) for mHHS, HOS-ADL and HOS-SSS, and IHOT-12.
resultsA total of 264 hip arthroscopic procedures met the inclusion criteria. There were 38 patients Tönnis grade-2, 91 patients Tönnis grade-1, and 135 patients Tönnis grade-0. Mean follow-up was 48.7 months in Tönnis grade-2 group, 48.6 months in Tönnis grade-0 group, and 48.1 months in Tönnis grade-1 group. Tönnis grade-2 patients had more extensive rim chondral damage, and a higher rate of labral debridement was performed in this group. There were no statistically significant differences in preoperative PROs among the groups. Tönnis grade-2 group had statistically significant improvement in mHHS, but not in HOS-AVD, HOS-SSS and IHOT-12. Between T1 and T2 groups there were no statistically significant differences in outcomes. Lower significant percentage values of Tönnis grade-2 patients achieved MCID, PASS, and SCB threshold.
conclusionImprovements in PROs and rates of achieving clinical meaningful outcomes were limited for patients with Tönnis grade-2 after HA at 4-year follow-up. The outcomes of the Tönnis grade-2 cohort deteriorate over mid-term follow-up. Our results could be used in orthopedic practice to inform patients about the limited role of hip arthroscopy as a joint preservation procedure in these selected patients. LEVEL OF EVIDENCE: Cohort study, level 3.
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