Chuckpaiwong B.Reingrittha P.Harnroongroj T.Mawhinney C.Tharmviboonsri T.Mahidol University2023-06-202023-06-202023-04-01Foot and Ankle Orthopaedics Vol.8 No.2 (2023)https://repository.li.mahidol.ac.th/handle/123456789/87143Background: Ankle arthrodesis, a recognized operative treatment for advanced-stage ankle osteoarthritis (OA), is recommended when conservative treatment proves unsuccessful. This single-center retrospective analysis examined the change in functional outcomes and the type of sport/exercise activity performed by advanced-stage ankle OA patients after ankle arthrodesis treatment. Methods: A total of 61 advanced-stage ankle OA patients (age, 63.1 ± 12.6 years) who had undergone ankle arthrodesis were included in this single-center retrospective study. The patients had functional outcomes evaluated via American Orthopaedic Foot & Ankle Society Score (AOFAS), Foot Function Index (FFI), Tegner Activity Level Scale (TAS), and High-Activity Arthroplasty Score (HAAS) questionnaires. Clinical status was compared across prearthritic, arthritic, and postarthrodesis periods, and satisfaction with return to sport/exercise activity was recorded. Results: Patients’ tarsal sagittal ROM (mean [95% CI]: 22.7 degrees [21.4-24.0]); time to union (15.7 weeks [11.8-19.6]); time to walk without gait aid (14.4 weeks [11.0-17.7]); time to return to work (17.9 weeks [15.1-20.8]); and time to exercise activity (20.6 weeks [17.9-23.4]) were recorded postarthrodesis. Hindfoot alignment angle toward a neutral position (difference: 11.4 degrees [9.2-13.6], P <.001) and functional outcomes (P <.001) significantly improved after arthrodesis surgery; however, only the TAS questionnaire indicated patients returned to their prearthritic activity level (P >.99). Patients generally reported “good” satisfaction with their recovery from ankle arthrodesis surgery, with 64% of patients returning to high-impact-type activity. Conclusion: Advanced-stage ankle OA patients had improved functional outcomes at ~1 year postarthrodesis surgery, enabling the majority of patients to return to high-impact-type activity. Level of Evidence: Level III, retrospective cohort study.MedicineArticleSCOPUS10.1177/247301142311773102-s2.0-8516162069224730114