Keremu A, Mijiti N, Mijiti S, Tuxun A, Abudurexiti A. Evaluation of the application value of a three-dimensional digital model of the knee in clinical practice.
J Int Med Res 2020;
48:300060519889742. [PMID:
32459119 PMCID:
PMC7278312 DOI:
10.1177/0300060519889742]
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Abstract
Objective
To compare the knee shape and bone parameters between knee prosthesis
products from overseas companies and a Chinese patient’s knee, and to apply
the anatomical basis for Chinese knee prosthesis design.
Methods
Three-dimensional digital models were built, including prosthesis products
for a normal adult. The relevant anatomy index was measured, and physical
parameter, radiographic, geometric, knee kinematic, and distal geometry data
were collected on the femur and tibia.
Results
The width of the femoral condyle (WFC), width of the medial femoral condyle
(WMFC), width of the lateral femoral condyle (WLFC), depth of the
intercondylar fossa (DICF), sagittal length of the medial femoral condyle
(SLMFC), sagittal length of the lateral femoral condyle (SLLFC), angle of
the medial femoral condyle (AMFC), and angle of the lateral femoral condyle
(ALFC) in the femur and the transverse diameter (ML) and anteroposterior
diameter (AP) of the tibial bone were measured. These parameters were
significantly lower in the normal group compared with the prosthesis product
model group.
Conclusion
When using an imported knee prosthesis, the osteotomy angle may not fit
perfectly. Use of an imported prosthesis may be an important factor in the
increasing failure of knee arthroplasty in China.
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