Sato Ena, Yamaji Takehiko, Sato Takahisa, Saida Kosuke, Watanabe Hideomi
Department of Rehabilitation Sciences, Graduate School of Health Sciences, Gunma University, Maebashi, Japan.
Artificial Joint Center, Zenshukai Hospital, Maebashi, Japan.
Prog Rehabil Med. 2022 Oct 21;7:20220055. doi: 10.2490/prm.20220055. eCollection 2022.
The WISH-type S-form hip brace (WISH brace) has significantly improved hip function and functional mobility in patients with hip osteoarthritis (OA). However, most patients later undergo surgery. The main purpose of this study was to evaluate how long the orthosis can be effectively used by patients with hip OA, and to reveal the associated prognostic factors.
This prospective study examined the survival curve of the equipment by using surgery as an endpoint and investigated how the duration of use affects patients. Harris Hip Score, muscle strength, and the Timed Up and Go test (TUG) were evaluated as prognostic factors.
By drawing the survival curves of 26 patients, approximately one third were expected to be still using the brace after 7 years. A rapid decrease in use was observed at around 1 year. A significant difference between patients with and without bracing at 1 year was found for the TUG result with the unaffected leg inside (ULI) at the start of bracing. A cut-off value of 9.5 s for the TUG with ULI significantly differentiated patients with and without bracing at 1 year, suggesting a possible predictor of brace survivorship in the early phase.
The TUG with ULI with a cut-off value of 9.5 s, or at most 10 s, may be a possible predictor of persistence of brace use in the early phase.
WISH型S形髋部支具（WISH支具）显著改善了髋骨关节炎（OA）患者的髋关节功能和功能活动度。然而，大多数患者后来还是接受了手术。本研究的主要目的是评估髋OA患者能有效使用该矫形器多长时间，并揭示相关的预后因素。
这项前瞻性研究以手术作为终点来检查该设备的生存曲线，并研究使用时长如何影响患者。将Harris髋关节评分、肌肉力量和计时起立行走测试（TUG）作为预后因素进行评估。
通过绘制26例患者的生存曲线，预计约三分之一的患者在7年后仍在使用该支具。在1年左右观察到使用量迅速下降。在支具佩戴开始时，未受影响腿在内（ULI）的TUG结果显示，佩戴支具和未佩戴支具的患者在1年时有显著差异。ULI的TUG值为9.5秒时可显著区分1年时佩戴支具和未佩戴支具的患者，提示这可能是早期支具留存率的一个预测指标。
ULI的TUG值为9.5秒或最多10秒时，可能是早期支具持续使用情况的一个预测指标。
