イトウ　ジユンヤ   Itou Jiyun'ya   伊藤　淳哉    所属   医学部 医学科（東京女子医科大学病院）    職種   助教
論文種別	原著
言語種別	英語
査読の有無	査読あり
表題	Lateral joint tightness in flexion following cementless mobile-bearing total knee arthroplasty decreases patient-reported outcome measures and postoperative range of motion.
掲載誌名	正式名：Journal of ISAKOS : joint disorders & orthopaedic sports medicine 略　 称：J ISAKOS ISSNコード：20597762/20597754
掲載区分	国外
巻・号・頁	pp.1
著者・共著者	Itou J, Itoh M, Kuwashima U, Okazaki K.
担当区分	筆頭著者
発行年月	2023/06
概要	PURPOSE:The purpose of this study was to clarify the association between clinical outcomes and the flexion joint gap following rotating concave-convex (Vanguard ROCC) total knee arthroplasty (TKA).METHODS:This consecutive retrospective series included 55 knees that underwent ROCC TKA. All the surgical procedures were performed using a spacer-based gap-balancing technique. To evaluate the medial and lateral flexion gaps, axial radiographs of the distal femur were obtained using the epicondylar view with a distraction force to the lower leg at 6 months postoperatively. Lateral joint tightness was defined as the lateral gap being greater than the medial gap. To evaluate clinical outcomes, patients were asked to complete patient-reported outcome measures (PROMs) questionnaires preoperatively and during at least 1 year of follow-up postoperatively.RESULTS:The median follow-up duration was 24.0 months. Overall, 16.0% of patients had postoperative lateral joint tightness in flexion. The postoperative range of motion and PROMs were lower in patients with lateral joint tightness than in those with a balanced flexion gap or lateral joint laxity. No serious complications, including bearing dislocations, occurred during the observation period.CONCLUSION:Lateral joint tightness in flexion following ROCC TKA decreases PROMs and postoperative range of motion.
DOI	10.1016/j.jisako.2023.06.003
PMID	37321294