Distal femoral varus osteotomy (DFVO)
Aetiology
Trauma
RA
Rickets / osteomalacia
Issues
Horizontal joint line important
- < 10° tilt acceptable
> 10o joint line tilt / due to femoral valgus
- continues to overload lateral compartment
closing wedge
Lateral Closing Wedge HTO
Position
- GA, IV Abx
- supine on radiolucent table
Background
Aetiology Unicompartmental OA
Trauma
Meniscectomy
Osteonecrosis
Varus or valgus malalignment
Goals of Osteotomy
Relief of pain
Improve function
No loss of ROM
No or slight restriction of activity
Allow heavy functional demands