全髋关节置换术后，当受影响的腿被感知比另一条腿更长时，遗忘的关节评分会更差。
Forgotten joint score is worse when the affected leg perceived longer than shorter after total hip arthroplasty.
机构信息
Department of Orthopedic Surgery, Yamaguchi University Graduate School of Medicine, 1-1-1 Minami-Kogushi Ube, Yamaguchi Prefecture, Ube, 755-8505, Japan.
出版信息
BMC Musculoskelet Disord. 2023 May 31;24(1):440. doi: 10.1186/s12891-023-06573-w.
BACKGROUND
One of the causes of patient dissatisfaction after total hip arthroplasty (THA) is leg length discrepancy (LLD). Even when radiographic LLD (R-LLD) is within 5 mm, some people perceive the affected side to be longer, while others perceive it is shorter. The purpose of this study was to investigate the relationship between perceived LLD (P-LLD), R-LLD, and Forgotten Joint Score (FJS-12) after THA.
METHODS
A retrospective study of 164 patients with unilateral hip disease was conducted. Based on P-LLD after THA, they were classified into three categories: perceived short (PS 21 patients), no LLD (PN 121 patients), and perceived long (PL 22 patients). On the other hand, based on R-LLD after THA, they were divided into < - 5 mm (RS 36 patients), - 5 mm ≤ x < 5 mm (RN 99 patients), and 5 mm ≥ (RL 29 patients), respectively. The proportion of P-LLD in the RN group was also evaluated. In each group, the relationship between P-LLD, R-LLD and FJS-12 was investigated.
RESULTS
After THA, the PL group had significantly worse FJS-12 (PS: 68.3 ± 26.2, PN: 75.0 ± 20.9, PL: 47.3 ± 25.2, P < .0001). In the R-LLD evaluation, there was no difference in FJS-12 among the three groups (RS: 73.7 ± 21.1, RN: 70.0 ± 24.5, RL: 67.7 ± 25.4, P < .53). The RN group perceived leg length to be longer (RN-PL) in 12.1% of cases, and the RN-PL groups had significantly worse FJS-12 (RN-PS: 65.4 ± 24.8, RN-PN: 73.8 ± 23.1, RN-PL: 41.8 ± 27.6, P < .0001).
CONCLUSION
One year after THA, patients with longer P-LLD had worse FJS-12, even if the R-LLD was less than 5 mm.
背景
全髋关节置换术后（THA）患者不满意的原因之一是下肢长度差异（LLD）。即使放射学 LLD（R-LLD）在 5 毫米以内，有些人也会感觉到患侧较长，而另一些人则会感觉到患侧较短。本研究旨在探讨 THA 后感知 LLD（P-LLD）、R-LLD 和遗忘关节评分（FJS-12）之间的关系。
方法
对 164 例单侧髋关节疾病患者进行回顾性研究。根据 THA 后 P-LLD，将其分为三组：感知短（PS 21 例）、无 LLD（PN 121 例）和感知长（PL 22 例）。另一方面，根据 THA 后 R-LLD，将其分为 < -5 毫米（RS 36 例）、-5 毫米≤x<5 毫米（RN 99 例）和 5 毫米（RL 29 例）。还评估了 RN 组中 P-LLD 的比例。在每组中，研究了 P-LLD、R-LLD 和 FJS-12 之间的关系。
结果
THA 后，PL 组的 FJS-12 明显较差（PS：68.3±26.2，PN：75.0±20.9，PL：47.3±25.2，P<0.0001）。在 R-LLD 评估中，三组之间的 FJS-12 无差异（RS：73.7±21.1，RN：70.0±24.5，RL：67.7±25.4，P<0.53）。RN 组有 12.1%的患者感知到腿长较长（RN-PL），RN-PL 组的 FJS-12 明显较差（RN-PS：65.4±24.8，RN-PN：73.8±23.1，RN-PL：41.8±27.6，P<0.0001）。
结论
THA 后 1 年，即使 R-LLD 小于 5 毫米，P-LLD 较长的患者的 FJS-12 也较差。
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