Department of Orthopaedic Surgery, Surgical Science, Tokai University School of Medicine, 143 Shimokasuya, Isehara 259-1193, Japan.
Department of Orthopaedic Surgery, Tokai University School of Medicine Oiso Hospital, 21-1 Gekkyo, Oiso 259-0198, Japan.
Nutrients. 2024 Jan 29;16(3):386. doi: 10.3390/nu16030386.
Impaired muscle recovery after total hip arthroplasty (THA) may affect gait and activities of daily living. Bioelectrical impedance analysis (BIA) can assess body composition and muscle volume, and computed tomography (CT) can assess muscle volume and the fatty degeneration of muscle. This study aimed to explore the effectiveness of BIA, and the correlation between preoperative body composition and postoperative muscle volume and degeneration after THA using BIA and CT. Thirty-eight patients who underwent THA and had BIA and CT performed pre- and postoperatively were retrospectively assessed. The BIA-derived measurements of preoperative body composition (fat mass index, fat-free mass index, and phase angle) were correlated with the CT-derived measurements (pre- and postoperative muscle volume and gluteus maximus and quadriceps Hounsfield Units of the affected hip). The preoperative fat mass index negatively correlated with the postoperative muscle volume of the gluteus maximus ( = 0.02) and quadriceps ( < 0.001) and the Hounsfield Units of the gluteus maximus ( = 0.03) and quadriceps ( = 0.03). The preoperative fat-free mass index positively correlated with the postoperative muscle volume of the quadriceps ( = 0.02). The preoperative phase angle positively correlated with the postoperative muscle volume of the quadriceps ( = 0.001) and the Hounsfield Units of the gluteus maximus ( = 0.03) and quadriceps ( = 0.001). In patients who underwent THA, preoperative body composition correlated with postoperative muscle volume and the fatty degeneration of the affected lower limb. Preoperative body composition may help predict postoperative muscle volume and fatty degeneration and thus, postoperative recovery.
全髋关节置换术 (THA) 后肌肉恢复受损可能会影响步态和日常生活活动。生物电阻抗分析 (BIA) 可评估身体成分和肌肉量，计算机断层扫描 (CT) 可评估肌肉量和肌肉脂肪变性。本研究旨在探讨 BIA 的有效性，以及 BIA 和 CT 术前身体成分与术后肌肉量和 THA 后肌肉变性的相关性。回顾性评估了 38 例接受 THA 并在术前和术后进行 BIA 和 CT 检查的患者。BIA 测定的术前身体成分（脂肪质量指数、去脂体重指数和相位角）与 CT 测定的（受影响髋关节的术前和术后肌肉量以及臀大肌和股四头肌的 Hounsfield 单位）相关。术前脂肪质量指数与臀大肌（ = 0.02）和股四头肌（ < 0.001）以及臀大肌（ = 0.03）和股四头肌（ = 0.03）的术后肌肉量呈负相关。术前去脂体重指数与股四头肌的术后肌肉量呈正相关（ = 0.02）。术前相位角与股四头肌的术后肌肉量（ = 0.001）以及臀大肌（ = 0.03）和股四头肌（ = 0.001）的 Hounsfield 单位呈正相关。在接受 THA 的患者中，术前身体成分与术后肌肉量和受影响下肢的脂肪变性相关。术前身体成分可能有助于预测术后肌肉量和脂肪变性，从而预测术后恢复。
