Is the Surgical Epicondylar Axis the Center of Rotation in the Osteoarthritic Knee?

Overview

Journal J Arthroplasty

Specialty Orthopedics

Date 2014 Dec 4

PMID 25466167

Citations 17

Authors

Hideo Kobayashi

Yasushi Akamatsu

Ken Kumagai

Yoshihiro Kusayama

Masato Aratake

Tomoyuki Saito

Affiliations

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Abstract

The relationship between the surgical epicondylar axis (SEA) and the rotational axis of the distal femur remains unclear. We investigated the relationship between the SEA and the distal femur and whether the SEA can be used as the rotational axis of the knee. Angular and linear measurements of 70 femora at 0°, 30°, 60°, 90°, and 120° of flexion were recorded. Results showed that the SEA was a logical and appropriate parameter as a principal axis for knee flexion at least between 0° and 60° of flexion. The study has important implications for the design and positioning of femoral components in total knee arthroplasty.

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