Resected bone surface anatomy measurement in KBD population for total knee arthroplasty based on three-dimensional computed tomography
- VernacularTitle:基于三维CT的大骨节病全膝置换术截骨面解剖参数测量
- Author:
Bo YANG
1
;
Ming CHEN
;
Shizhang LIU
;
Yanhai CHANG
;
Hui QIANG
;
Ming LING
;
Jian TAO
;
Pengzhen LEI
Author Information
- Publication Type:Journal Article
- Keywords: Kashin-Beck disease(KBD); total knee arthroplasty; distal femur; proximal tibia; three-dimensional reconstruction
- From: Journal of Xi'an Jiaotong University(Medical Sciences) 2025;46(4):650-655
- CountryChina
- Language:Chinese
- Abstract: Objective To measure and analyze anatomic parameters of resected distal femurs and proximal tibias in Kaschin-Beck disease(KBD)and osteoarthritic(OA)knees which fit for total knee arthroplasty(TKA),so as to provide basis for designing suitable knee prosthesis for KBD patients.Methods A total of 154 knees(75 KBD and 79 OA)fitting for TKA underwent three-dimensional reconstruction;resection of distal femurs and proximal tibias was simulated during TKA.We measured the distal femoral mediolateral(fML),lateral anteroposterior(fLAP),medial anteroposterior(fMAP),medial condylar width(fMCW),lateral condylar width(fLCW)and fML/fLAP aspect ratio,proximal tibial mediolateral(tML),middle anteroposterior(tAP),medial anteroposterior(tMAP),lateral anteroposterior(tLAP)dimension,and tML/tAP aspect ratio to compare the morphometric differences between KBD and OA knees.Results The measured anatomic parameters of resected distal femurs and proximal tibias in both male and female patients of KBD group were smaller than those of OA knees(P＜0.01).We also found that KBD group had larger distal femur fML/fLAP and proximal tibia tML/tAP aspect ratios than those of OA knees(P＜0.01).This indicated that under a given AP dimension,KBD knees need an oval-shaped prosthesis with a wider ML length and more spherical-shaped prosthesis with relatively narrow ML dimensions in OA knees.Conclusion The anatomy of distal femurs and proximal tibias shows significant differences in size and shape between KBD and OA knees,which provides theoretical basis for designing proper knee prosthesis for KBD patients.
