Overview
Screws or staples are used to hold the bone in place. The result is a slightly "knock kneed" appearance which allows the healthier outer knee to bear most of the weight.
Review Date 7/28/2021
Updated by: C. Benjamin Ma, MD, Professor, Chief, Sports Medicine and Shoulder Service, UCSF Department of Orthopaedic Surgery, San Francisco, CA. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.