EP8.80 Patients with Tönnis Grade 0 and 1 Demonstrate Durable Outcomes at 15-year Follow Up

Clicks: 9
ID: 330942
2026
Free PDF
Article Quality & Performance Metrics
Overall Quality
Not rated
Combines reader engagement with the AI quality analysis. This article has not been analysed, so there is no overall score — reader engagement is measured and shown alongside.
AI Quality Assessment
Not analyzed
Readership in this journal
Popular

Ranked #242 of 444 articles by views in Journal of hip preservation surgery

Most read Least read

Bar heights use a square-root scale. Only the 120 most-read articles are drawn; the journal has 444 in total.

Mint this article as an NFT
Not yet minted

Create a permanent, verifiable on-chain record of this article on the Scimatic Network. The NFT is held in your Journament account, and you can withdraw it to your own wallet at any time.

5 SUSD one-off · no wallet required
Sign in to mint
Abstract
Abstract Background Though osteoarthritis is a known risk factor of decreased outcomes following hip arthroscopy for femoroacetabular impingement syndrome (FAIS), long-term outcomes comparing those with and without mild arthritis have not been defined. Purpose The purpose of this study is to evaluate the effect of Tönnis grade on 15-year patient-reported outcomes, clinically meaningful improvement, and survivorship following hip arthroscopy. Methods Patients undergoing primary hip arthroscopy were stratified by Tönnis grade (0 vs 1). Patients with Tönnis grade 0 were propensity score matched to patients with Tönnis grade 1 arthritis controlling for age, sex, body mass index (BMI), smoking status, labral debridement, capsular closure, lateral center-edge angle (LCEA), and alpha angle (45° view). Outcomes included modified Harris Hip Score (mHHS) and Non-Arthritic Hip Score (NAHS) at baseline and 15 years, as well as change (Δ) scores. Achievement of minimal clinically important difference (MCID; MHHS ≥6.685, NAHS ≥6.08) and patient acceptable symptomatic state (PASS) were calculated. Revision surgery and conversion to total hip arthroplasty (THA) were assessed and compared between groups. Continuous variables were compared using Welch t-tests, and categorical variables with Fisher’s exact tests. Results A total of 55 matched patients were included, 21 with Tönnis grade 1 and 34 with Tönnis grade 0. There were no significant differences in baseline demographics and 15-year PROs between cohorts (mHHS: 88.3 vs 89.2, p = 0.863; NAHS: 86.6 vs 88.0, p = 0.825). Similarly, improvements from baseline were comparable (ΔMHHS: 38.1 vs 36.4, p = 0.847; ΔNAHS: 44.6 vs 41.6, p = 0.643). Rates of patient-acceptable symptom state (PASS) achievement were high among the cohorts (mHHS, p = 0.754; NAHS, p = 0.754). Though the Tönnis grade 1 cohort demonstrated similar achievement of minimally clinically important difference (MCID) for mHHS (p = 0.369), they approached significantly lower rates of achievement for NAHS (p = 0.053). There were no differences in survivorship outcomes, including revision surgery (p = 1.00), conversion to THA (p = 0.300), time to revision (p = 0.780), or time to THA (p = 0.503). Conclusion Patients with Tönnis grade 1 osteoarthritis achieved comparably durable 15-year total outcomes, improvement, and survivorship to those with Tönnis grade 0 following hip arthroscopy for FAIS. While a trend toward lower NAHS MCID achievement was observed in Tönnis 1 patients, this did not reach statistical significance. These findings suggest that mild radiographic osteoarthritis should not be considered a contraindication to hip arthroscopy in appropriately selected patients.
Reference Key
openalex_W7220365422 Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Jessica Kurtz, Kobe Rodney, Rushani Cameron, Ariana Lott, Thomas J. Youm
Are you one of these authors? Claim your profile
Journal Journal of hip preservation surgery
Year 2026
DOI
10.1093/jhps/hnag043.459
URL
https://doi.org/10.1093/jhps/hnag043.459
Keywords Keywords not found

Citations

No citations found. To add a citation, contact the admin at info@scimatic.org

Comments

No comments yet. Be the first to comment on this article.