Robert E. Booth Jr, MD

John Insall, MD, who recognized 15 years ago that women’s femurs had a more trapezoidal shape and greater AP dimension than their counterparts in men, generated the original impetus for a gender-sensitive total knee. A custom component, 5 mm larger in the sagittal diameter, was created to simultaneously avoid overhang and yet not over-resect the posterior femoral condyles — the same compromise that confronts surgeons today in using generic (and especially non-handed) implants.