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最終更新日：2026/05/20
宇佐美 真太郎
ウサミ シンタロウ
(Shintaro Usami)
論文
- タイトル
- タイトル（英）
- Impact of Lower Extremity Torsion on Clinical Outcomes Following Medial Patellofemoral Ligament Reconstruction.
- 参照URL
- https://researchmap.jp/shintaro.usami/published_papers/53350944
- 著者
- 著者（英）
- Kyota Ishibashi,Eiji Sasaki,Takahiro Tsushima,Shintaro Usami,Hikaru Kristi Ishibashi,Yukiko Sakamoto,Yuka Kimura,Yasuyuki Ishibashi
- 担当区分
- 概要
- 概要（英）
- BACKGROUND: The impact of lower extremity torsion on the clinical outcomes in patients who have undergone isolated medial patellofemoral ligament reconstruction (MPFLR) with artificial tape and suture anchors remains unclear. PURPOSE: To evaluate the association between lower extremity torsion and clinical outcomes following MPFLR using FiberTape and knotless SwiveLock anchors in patients with recurrent patellar instability. STUDY DESIGN: Cohort study; Level of evidence, 3. METHODS: This study included 96 knees (65 patients) that underwent MPFLR between 2016 and 2023 with femoral torsion (FT) and tibial torsion (TT) as potential predictors of postoperative outcomes. Preoperative and postoperative assessments included radiographic and computed tomography measurements and clinical evaluations using the Knee injury and Osteoarthritis Outcome Score (KOOS). RESULTS: Significant improvements were observed in the KOOS subscale scores (pain, symptoms, quality of life, sports, and activities of daily living) 1 year postoperatively. Knees with FT ≤30° showed superior outcomes in symptoms and sports activities compared with those with FT >30°. Multivariate analysis identified increased FT as negatively associated with patients' scores on the sports subscale of the KOOS questionnaire (β = -0.251, P = .009), whereas higher TT was positively associated with sports scores (β = 0.335, P < .001). Receiver operating characteristic analysis identified an FT threshold of 27° as a predictor of postoperative apprehension and symptoms. CONCLUSION: These findings underscore the detrimental impact of increased FT on MPFLR outcomes, highlighting the necessity for a comprehensive preoperative assessment of lower extremity torsion. Future research should explore the long-term effects and refine surgical protocols to enhance treatment efficacy.
- 出版者・発行元
- 出版者・発行元（英）
- 誌名
- 誌名（英）
- Orthopaedic journal of sports medicine
- 巻
- 14
- 号
- 3
- 開始ページ
- 23259671251404061
- 終了ページ
- 23259671251404061
- 出版年月
- 2026年3月
- 査読の有無
- 招待の有無
- 掲載種別
- 研究論文（学術雑誌）
- ISSN
- DOI URL
- https://doi.org/10.1177/23259671251404061
- 共同研究・競争的資金等の研究課題