Validation of transepicondylar axis as an accurate measure for femoral component rotation in total knee arthroplasty
|IJOCP | Volume – 2015| Issue – 2015| Article ID – 2015:94
Conference: Indian Orthopaedic Association Annual Conference IOACON-2013, India [Click for Full details]
Authors: Gupta S, Kumar A
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Purpose: To validate accuracy of transepicondylar axis as a reference for femoral component rotation in primary total knee arthroplasty.
Methods: Ap rospective study done from dec 2010 to dec 2011 at tertiary centre. 80 knees were included (43 females and 21 males ). All surgeries were carried out by one senior arthroplasty surgeon. All patients undergoing primary total knee replacement were included and all revision cases were excluded. Intraoperative assessment of TEA was done by palpating most prominent point on lateral epicondyle and sulcus on medial epicondyle and passing a k wire through it. Confirmation is done under image intensifier C arm with epicondylar view. Postoperative TEA was assessed by taking CT scan, measuring condylar twist angle and posterior condylar angle. Also correlation of femoral component rotation with postoperative anterior knee pain was assessed.
Results: The mean PCA was around 4° with TEA as reference and only 10% patients required an additional lateral release of which 2% patient had preop patellar maltracking. No postoperative patellar maltracking was seen. Anterior knee pain was present in 8% patients. No postop infection is noted. Alignment ranging from 3° to 9° external rotation.
Conclusion: TEA is most accurate reference for femoral component rotation even in severely deformed arthritic knees.
|How to Cite this Abstract|
|Gupta S, Kumar A. Validation of transepicondylar axis as an accurate measure for femoral component rotation in total knee arthroplasty. International Journal of Conference Proceedings 2015;(2015):94|