releases

Goal

- head that translates 50% in all directions

- allows 30^o ER with arm at side

- stable posteriorly

Pre-Op 

- antibiotics

- consider specific Propionobacterium cover

Pathology

ITB rubbing on LFC

- long distance runners (slow running more at risk than fast)

- cyclists (seat too high, improper technique)

ITB becomes tight, especially posterior portion

Develop inflammed tissue under ITB

- synovium

- bursa

Aetiology

Overuse 

- sudden increase in distance

- hill running

- genu varum 

- improper shoe wear

Two groups of dislocated hips

1.  Late presenters

2.  Failures of splint in those < age 6/12

Options

1.  Adductor tenotomy + closed reduction

- most surgeons will attempt this initially

- risk of AVN wilth forceful reduction / excessive abduction

2.  Open Reduction

- for failure of closed reduction

Definition

A valgus knee has a tibiofemoral angle of > 10^o

Causes

Inflammatory

- RA