Conclusion
There was a sexual dimorphism of the posterior condylar offset of the femur and the medial posterior slope of the tibia in non-arthritic knees of Egyptian adults. This would indicate most of the commonly used knee implants, even those sex specific, may not provide a perfect fit unless sex and ethnic variations in both the offset and the slope were previously assessed. We believe future designs of knee implants should consider these differences in order to improve postoperative ROM and patients’ satisfaction after TKA.