Bone Health

- indications for HTO:
- associated conditions:
- posterolateral corner deficiency
- osteoarthritis of the knee:
- motivation for procedure:
- narrowed medial cartilaginous space may regenerate (and associated degenerative features may reverse) if weight bearing stresses are partially shifted from the medial to the lateral side of the knee (shifting the mechanical axis from relative varus to valgus);
- results of osteotomy about the knee are most dependent on the limb alignment and joint line inclination after surgery;
Wheeless' Textbook of Orthopaedics

Definition Knee osteotomy is surgery that removes a part of the bone of the joint of either the bottom of the femur (upper leg bone) or the top of the tibia (lower leg bone) to increase the stability of the knee. Osteotomy redistributes the weight-bearing force on the knee by cutting a wedge of bone away to reposition the knee. The angle of deformity in the knee dictates whether the surgery is to correct a knee that angles inward, known as a varus procedure, or one that angles outward, called a valgus procedure. Varus osteotomy involves the medial (inner) section of the knee at the top of the tibia. Valgus osteotomy involves the lateral (outer) compartment of the knee by shaping the bottom of the femur. Encyclopedia of Surgery: A Guide for Patients and Caregivers

High Tibial Osteotomy For Arthritis In The Knee In Young Patients

Archive Copy 2003: Joe's Hemicallotasis Page

AAOS Online Service Fact SheetOsteotomy and unicompartmental knee arthroplasty