Deformity of proximal femur with neck-shaft angle <125°
Characterised by
- coxa vara
- decreased femoral anteversion
- limp / trendelenberg
- stress fractures
- early OA
"ACDDC"
Acquired
2° to underlying disorder
- rickets
Acquired Adult Flatfoot Deformity (AAFD)
- collapse of medial longitudinal arch
- secondary to ligament / tendon / joint or bony pathology
Flexible / Physiological
Ligamentous Laxity (DIAL HOME)
Rigid
- Congenital Vertical Talus
- Tarsal Coalition
Reduction of space available for neural elements in spinal canal or intervertebral foramina
- due to degenerative changes, congenital abnormalities or both
- involves compression of the thecal sac or nerve roots
Onset 50 - 60's
- M = F
- associated with onset OA spine