Zou Mingchen, Wu Haotian, Yao Shuangquan, Ren Dong, Liu Song, Liu Yueju, Song Zhaohui
Department of Orthopedic Surgery, The 3rd Hospital of Hebei Medical University, Shijiazhuang, People's Republic of China.
Key Laboratory of Biomechanics of Hebei Province, Shijiazhuang, People's Republic of China.
J Orthop Surg Res. 2021 Feb 25;16(1):158. doi: 10.1186/s13018-021-02289-6.
This study was done to observe the incidence of Osteo-line on the femur neck and to explore the clinical application of Osteo-line in osteotomy.
Eighty-nine adult femur specimens were selected to observe the incidence of Osteo-line on the femur neck. From August 2015 to January 2019, a total of 278 patients who completed unilateral hip arthroplasty at the Third Hospital of Hebei Medical University were retrospectively included. Patients who accepted osteotomy via Osteo-line on the femur neck were defined as the experimental group (n = 139), and patients who accepted osteotomy via traditional method (The femoral distance 1.5 cm above the trochanter was retained for osteotomy by visual inspection.) were defined as the control group (n = 139). According to the postoperative pelvic X-ray, Photoshop was used to evaluate the leg length discrepancy (LLD) by the CFR-T-LT method.
Among the 89 specimens, the incidence of anterior Osteo-line was 75.28%, and the incidence of posterior Osteo-line was 100%. According to the clinical application results, the incidence of anterior Osteo-line on the femur neck was 80%, and the incidence of posterior Osteo-line was 100%. The Osteo-line was clearer than those on the femoral specimens. Twenty-six cases had LLD greater than 1 cm (9.29%), including 2 cases in the experimental group and 24 cases in the control group. The average postoperative LLD in the experimental group (0.19 ± 0.38 mm) was significantly shorter than in the control group (0.54 ± 0.51 mm)(P = 0.005).
The incidence of Osteo-line on the femur neck was high, and patients who accepted osteotomy via Osteo-line on the femur neck can achieve shorter postoperative LLD than the control group.
本研究旨在观察股骨颈骨线的发生率，并探讨骨线在截骨术中的临床应用。
选取89例成人股骨标本观察股骨颈骨线的发生率。回顾性纳入2015年8月至2019年1月在河北医科大学第三医院完成单侧髋关节置换术的278例患者。将采用股骨颈骨线截骨的患者定义为试验组（n = 139），将采用传统方法（通过肉眼观察在转子上方1.5 cm处保留股骨长度进行截骨）截骨的患者定义为对照组（n = 139）。根据术后骨盆X线片，使用Photoshop通过CFR-T-LT方法评估下肢长度差异（LLD）。
在89个标本中，前骨线的发生率为75.28%，后骨线的发生率为100%。根据临床应用结果，股骨颈上前骨线的发生率为80%，后骨线的发生率为100%。骨线比股骨标本上的更清晰。26例患者的LLD大于1 cm（9.29%），其中试验组2例，对照组24例。试验组术后平均LLD（0.19±0.38 mm）明显短于对照组（0.54±0.51 mm）（P = 0.005）。
股骨颈骨线的发生率较高，采用股骨颈骨线截骨的患者术后LLD比对照组短。
