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General Orthopaedics

THREE-DIMENSIONAL CRISS-CROSS LINE LOCATE FEMORAL OSTEOTOMY IN TKA

The International Society for Technology in Arthroplasty (ISTA), 28th Annual Congress. PART 1.



Abstract

Objective

In total knee arthroplasty, three-dimensional “criss-cross” line locate femoral osteotomy and conventional osteotomy were used. By comparing the two methods osteotomy in patients before and after surgery and imaging-related information data, to evaluate the recent post operative efficacy, at the same time to find out if there has clinical evidence that three-dimensional “criss-cross” line locate femoral osteotomy can be used in total knee arthroplasty.

Methods

From July 2012 to July 2014, 64 patients who undertook the artificial total knee arthroplasty were divided into 2 groups: conventional osteotomy group(group A)and three-dimensional “criss-cross” line locate femoral osteotomy group(group B). In the X-ray of the two groups, it was measured that the hip-knee-ankle angle and the joint gap symmetry of 90°flexion degree. It was also measured that the two group joints range of motion. Those data were statistically analyzed. The KSS score of the two groups were compared.

Results

In Group B the excellent and good rate was 93.8%, and Group A was 81.3%. The postoperative results of Group A were relatively better than Group B in limb alignment and joint mobility. There were significant differences between the prosthesis placement of the two group patients.

Conclusion

The Short-term results of the three-dimensional “criss-cross” line locate femoral osteotomy group was better than the conventional osteotomy group. The reference osteotomy method of three-dimensional “criss-cross” line is very helpful to have a good result in TKA.


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