The matching analysis of the tibial osteotomy and the imported prosthesis components of the Han and Uygur populations
10.3760/cma.j.issn.0253-2352.2018.07.008
- VernacularTitle:汉族与维吾尔族人群胫骨截骨面与进口假体组件的匹配性分析
- Author:
Bo ZHANG
1
;
Kemin LIU
;
Tiebing QU
;
Jiang PAN
;
Yuan LIN
;
Zhiwei WANG
;
Shixiang REN
;
Liang WEN
;
Tong CHEN
;
Jun LI
;
Lei ZHOU
;
Desi MA
Author Information
1. 100020,首都医科大学附属北京朝阳医院骨科
- Keywords:
Tibia;
Imaging,three-dimensional;
Arthroplasty,replacement,knee;
Prosthesis design
- From:
Chinese Journal of Orthopaedics
2018;38(7):433-441
- CountryChina
- Language:Chinese
-
Abstract:
Objective To compare the anatomical differences of tibia osteotomy between Han and Uygur populations and to analysis their compatibility with imported prosthesis component.Methods Two hundred patients (400 knees) were selected from the outpatients and healthy volunteers of the non-knee joint disease from September 1,2012 to December 1,2014,with 86 men (172 knees) and 114 women (228 knees).The average age is 44.64-10.8 years (range 21-68 years old).According to the populations,the subjects were divided into Han group and Uygur group.Furthermore,each group was divided into male subgroup and female subgroup.A full-length CT scan of the lower limb was conducted to reconstruct the knee joint in the workstation.The tibial osteotomy was simulated in total knee arthroplasty.The transverse diameter of the tibial cross section,the longitudinal depth of the medial platform and the depth of the lateral platform were measured.The front and back diameter and aspect ratio of the osteotomy were calculated.There parameters were compared between the Han and Uygur groups.Five mm tolerance range method was used to analysis the cover rate of the following three kinds of commercially imported prosthesis,namely Depuy,Link and Zimmer.Results The mean value of the tibial cross section were 72.3±4.3 mm,50.7±3.1 mm,47.8±3.0 mm,49.3±2.9 mm and 0.682±0.021 in Han group,while those were 74.5±4.8 mm,51.4±3.0 mm,48.6±2.8 mm,50.0±2.9 mm and 0.672±0.020 in Uygur group,respectively.Except the aspect ratio,the average value of each parameter in Uygur group was greater than that in the Han group with statistically significant differences between the two populations.The cover rate of the three kinds of prosthesis tibial component were 53.0％,37.0％ and 40.0％ for Han group,but 61.0％,43.0％ and 42.5％ for Uygur group.Depuy prosthesis was fit for the Uygur population better.Conclusion The geometry and anatomy of proximal tibia in Chinese showed significant difference between Han and Uygur populations.The mean covering rates of the imported tibial components were low in the dimensions of the resected surface.We can improve the prosthesis and the matching degree by adjusting the parameters or increasing the model set.
