{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,26]],"date-time":"2026-08-26T14:50:47Z","timestamp":1787755847023,"version":"build-2784847793"},"reference-count":43,"publisher":"Ovid Technologies (Wolters Kluwer Health)","issue":"5","license":[{"start":{"date-parts":[[2025,11,26]],"date-time":"2025-11-26T00:00:00Z","timestamp":1764115200000},"content-version":"unspecified","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"content-domain":{"domain":["lww.com","ovid.com"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2026,3,4]]},"abstract":"<jats:sec>\n                    <jats:title>Background:<\/jats:title>\n                    <jats:p>Total hip arthroplasty (THA) is a well-established procedure for hip osteoarthritis (OA); however, its clinical outcomes are variable, and the optimal timing for surgery remains unclear. Identifying the preoperative predictors that influence midterm patient-reported outcome measures (PROMs) could improve patient outcomes.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods:<\/jats:title>\n                    <jats:p>This retrospective cohort study included 274 Asian patients who underwent primary THA for OA between 2012 and 2018, who completed preoperative physical assessments, and who responded to a postoperative mail survey. Preoperative variables included symptom duration, pain intensity, hip range of motion, lower-limb muscle strength, and 10-m free gait speed. PROMs were assessed using the Oxford Hip Score (OHS) and the Forgotten Joint Score-12 (FJS-12). Clinically meaningful outcomes were assessed using the Patient Acceptable Symptom State (PASS), defined as a score of \u226542 for the OHS and a score of \u226550 for the FJS-12. Additionally, K-means clustering was applied to categorize patients into an excellent outcome group and a control group on the basis of their PROMs.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results:<\/jats:title>\n                    <jats:p>Multivariable regression analysis revealed that preoperative gait speed significantly predicted both the OHS and FJS-12 outcomes (p &lt; 0.01). Furthermore, hip flexion range of motion and hip flexion strength were significantly associated with preoperative gait speed (p &lt; 0.01). A receiver operating characteristic (ROC) curve analysis identified a gait speed cutoff value of 0.7 m\/s for achieving the PASS for the OHS (area under the curve [AUC]: 0.69; p &lt; 0.01) and a cutoff value of 1.0 m\/s for achieving the PASS for the FJS-12 (AUC: 0.60; p = 0.01). K-means clustering identified preoperative gait speed as the sole significant predictor of classification into the excellent outcome group (odds ratio, 5.85; p &lt; 0.01). The ROC curve analysis revealed a gait speed cutoff value of 1.0 m\/s for classification into the excellent group (AUC: 0.64; p &lt; 0.01).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions:<\/jats:title>\n                    <jats:p>Preoperative gait speed, which reflects decreased mobility due to hip joint dysfunction, was a significant predictor of midterm PROMs after THA. Maintaining a preoperative gait speed of 1.0 m\/s could serve as a critical threshold for achieving favorable postoperative outcomes, regardless of patient age.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Level of Evidence:<\/jats:title>\n                    <jats:p>\n                      Prognostic\n                      <jats:underline>Level III<\/jats:underline>\n                      . See Instructions for Authors for a complete description of levels of evidence.\n                    <\/jats:p>\n                  <\/jats:sec>","DOI":"10.2106\/jbjs.25.00542","type":"journal-article","created":{"date-parts":[[2025,11,26]],"date-time":"2025-11-26T19:00:15Z","timestamp":1764183615000},"page":"384-391","update-policy":"https:\/\/doi.org\/10.1097\/lww.0000000000001000","source":"Crossref","is-referenced-by-count":7,"title":["Preoperative Gait Speed as a Predictor of Patient-Reported Outcomes After Total Hip Arthroplasty"],"prefix":"10.2106","volume":"108","author":[{"ORCID":"https:\/\/orcid.org\/0009-0007-3852-2604","authenticated-orcid":false,"given":"Yuki","family":"Nakao","sequence":"first","affiliation":[{"name":"Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6302-2539","authenticated-orcid":false,"given":"Satoshi","family":"Hamai","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan"},{"name":"Department of Artificial Joints and Biomaterials, Faculty of Medical Sciences, Kyushu University, Fukuoka, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2378-1917","authenticated-orcid":false,"given":"Satoshi","family":"Yamate","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6990-5276","authenticated-orcid":false,"given":"Toshiki","family":"Konishi","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9229-6205","authenticated-orcid":false,"given":"Shinya","family":"Kawahara","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7470-8202","authenticated-orcid":false,"given":"Goro","family":"Motomura","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9770-9803","authenticated-orcid":false,"given":"Takeshi","family":"Utsunomiya","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6692-982X","authenticated-orcid":false,"given":"Yasuharu","family":"Nakashima","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"276","published-online":{"date-parts":[[2025,11,26]]},"reference":[{"issue":"10158","key":"bib1-20260304","doi-asserted-by":"crossref","first-page":"1662","DOI":"10.1016\/S0140-6736(18)31777-X","article-title":"Hip replacement","volume":"392","author":"Ferguson","year":"2018","journal-title":"Lancet."},{"issue":"13","key":"bib2-20260304","doi-asserted-by":"crossref","first-page":"1166","DOI":"10.2106\/JBJS.20.01679","article-title":"Changes in 24-Hour Physical Activity Patterns and Walking Gait Biomechanics After Primary Total Hip Arthroplasty: A 2-Year Follow-up Study","volume":"103","author":"Bahl","year":"2021","journal-title":"J Bone Joint Surg Am."},{"issue":"7","key":"bib3-20260304","doi-asserted-by":"crossref","first-page":"868","DOI":"10.1302\/0301-620X.89B7.18482","article-title":"Quality of life and functional outcome after primary total hip replacement. 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