Trochanteric Osteotomy
Types
1. Standard trochanteric osteotomy
2. Sliding trochanteric osteotomy
3. Extended trochanteric osteotomy
Standard Trochanteric osteotomy
1. Standard trochanteric osteotomy
2. Sliding trochanteric osteotomy
3. Extended trochanteric osteotomy
1. Reduce implant loosening
- offset load sharing to diaphysis
- 30% if > 70 mm
2. Restore optimal alignment
1. Using augments or bone grafting
2. Increased constraint
- VVS / hinge
Arthroscopic
- intra-articular
- suprapectoral
Open
- suprapectoral
- subpectoral
Concept
Dominant arm of middle aged men
- between 40 and 60
Sudden dramatic event
- sporting / weightlifting injury
- resisting heavy extension load
Degenerative changes seen on histology
Complete
- retracted / rupture of lacertus fibrosis
- minimally retracted