Comparison Between TOMOFIX and BodyCAD Fine Osteotomy

Inclusion Criteria: * aged 18-70 years old * have medial compartment osteoarthritis, with varus alignment, deemed suitable for a MOWHTO * able to speak, read and understand English Exclusion Criteria: * found to have a cruciate ligament deficiency * require multiplanar or rotational alignment correction * have greater than 5 degrees fixed flexion deformity * unable to have CT scans for follow up * evidence of tricompartmental osteoarthritis * evidence of lateral compartment osteoarthritis on arthroscopy * received injection therapy within 3 months of surgery on the operative knee * have a medical history of inflammatory arthropathy, diabetes * actively smoke