Clinical application of CT measurement in primary total hip arthroplasty of DDH patients
10.3760/cma.j.issn.1008-1372.2020.01.020
- VernacularTitle: CT测量在髋关节发育不良患者初次全髋关节置换中的临床应用
- Author:
Huagui MO
1
;
Yuanqiao HUANG
1
;
Gunshao MA
1
;
Qin XU
1
;
Liping WU
1
;
Lilan FANG
2
Author Information
1. Department of Orthopedics, Jiangmen Central Hospital, Jiangmen 529030, China
2. Department of Oncology, Jiangmen Central Hospital, Jiangmen 529030, China
- Publication Type:Journal Article
- Keywords:
Tomography, X-ray computed;
Acetabulum;
Femur neck;
Hip dysplasia;
Arthroplasty, replacement, hip
- From:
Journal of Chinese Physician
2020;22(1):80-83
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To investigate the clinical effect of preoperative computed tomography (CT) measurement of acetabulum femoral neck combined anteversion in primary total hip arthroplasty (THA).
Methods:From March 2016 to may 2018, 48 patients (90 hips) with developmental dysplasia of the hip (DDH) who were treated with THA in the orthopaedic department of Jiangmen Central Hospital were measured by X-ray and spiral CT three-dimensional reconstruction technology before operation, and the best combined anteversion angle of acetabulum was determined before implementing THA, which was CT group; the remaining 42 patients were not measured by CT before operation, which was X-ray group. The difference of acetabulum cup anteversion angle, acetabulum femoral neck combined anteversion angle and preoperation angle were evaluated by three-dimensional computed tomography (3D-CT) in CT group.
Results:There was no significant difference in operative time, intraoperative blood loss, time of getting out of bed and length of lower limbs between the two groups (P>0.05). In CT group, the acetabulum cup anteversion and acetabulum femoral neck anteversion were close to the pre-operative angle at 2 and 3 months postoperatively (P>0.05). The Harris hip score of CT group was significantly higher than that of X-ray group at 2 and 3 months after operation, and the incidence of deep vein thrombosis was 6.25%, significantly lower than that of X-ray group (21.43%) (P<0.05). The incidence of dislocation, infection and periprosthetic fracture was slightly lower than that of X-ray group, but the difference was not statistically significant (P>0.05).
Conclusions:For DDH patients who received THA for the first time, preoperative CT measurement of acetabulum femoral neck combined with anteversion is conducive to the formulation of the best combined anteversion adjustment scheme, which can obtain the maximum initial stability, improve the surgical effect and reduce the occurrence of dislocation of prosthesis.
