クワシマ　ウミト   Kuwashima Umito   桑島　海人    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	Comparison of torsional changes in the tibia following a lateral closed or medial open wedge high tibial osteotomy.
掲載誌名	正式名：The Knee 略　 称：Knee ISSNコード：18735800/09680160
掲載区分	国外
巻・号・頁	26(2),pp.374-381
著者・共著者	Kuwashima Umito, Takeuchi Ryohei, Ishikawa Hiroyuki, Shioda Mikio, Nakashima Yasuharu, Schröter Steffen
担当区分	筆頭著者
発行年月	2019/03
概要	OBJECTIVE:The aim of this study is to evaluate, by computed tomography (CT), whether different torsional changes occur in the tibia following a lateral closed wedge high tibial osteotomy (CWHTO) versus a medial open wedge high tibial osteotomy (OWHTO) procedure. It was hypothesized that the distal fragment of the tibia would show greater internal rotation after CWHTO.METHODS:Thirty knees from 25 patients who underwent HTO were enrolled. Fifteen knees of 14 patients who underwent CWHTO and 15 knees of 11 patients who received OWHTO were match-paired. CT scans were taken before and three weeks after surgery. Rotational changes in the distal fragment of the tibia were assessed by measuring the tibial torsion angle (TTA).RESULTS:The mean TTA in the CWHTO group pre-operatively and postoperatively was +23.9° ± 7.8° and + 18.2° ± 7.0°, respectively. Internal rotation of the distal fragment of the tibia after CWHTO was -5.7 ± 3.3° (P < 0.001). In the OWHTO group, the mean TTA pre-operatively and postoperatively was +27.9° ± 6.9° and + 26.8 ± 7.7°, respectively, with no significant change in torsion observed (P > 0.05).CONCLUSIONS:The distal fragment of the tibia rotated internally after CWHTO but not after OWHTO.LEVEL OF EVIDENCE:Level III: case-control study.
DOI	10.1016/j.knee.2019.01.009
PMID	30772185