Contraindications of high tibial osteotomy (HTO) are numerous. One needs to be aware of them before planning the procedure.
To define, high tibial osteotomy is a very rewarding procedure for uni-compartmental osteoarthritis of the knee joint.

Contraindications of High Tibial Osteotomy are
- Narrowing of lateral compartment cartilage space
- Lateral tibial subluxation more than 1cm
- Medial compartment bone loss more than 2 or 3mm
- Flexion contracture more than 15 degrees
- Knee flexion less than 90 degrees
- More than 20 degrees correction needed
- Inflammatory arthritis
- Significant peripheral vascular disease
- Patellofemoral arthritis
- Ligament instability
- Varus thurst during gait
- BMI >35
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