Abstract
BackgroundThis 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.MethodsEighty-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.ResultsAmong 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).ConclusionThe 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.
Highlights
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
Osteo-line on femur neck After the observation of the 89 specimens, we found that the Osteo-line was more obvious on the greater trochanter side
The second is at the level of the center of the lesser trochanter to give measurement S, which corresponds to inequality (SA-SN) due to the position of the stem
Summary
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. The plane between 1.25 ± 0.25 cm above the tip of the lesser trochanter and the line to the base of the femoral neck on the greater trochanter side are usually used as the femoral neck osteotomy position in THA [4]. Preoperative templating was carefully performed, an intraoperative pelvis X-ray was obtained to assess accuracy, and appropriate adjustments were made. It is still necessary to repeat the measurement during the operation to ensure that it matches the preoperative template, which increases the operation time and blood loss. The integrity of the femoral neck must be ensured, and it is not suitable for femoral neck fractures and other femoral neck diseases in which the length of the femoral neck has changed
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