debridement

Epidemiology

Usually after 50-60 years of age

Aetiology

Primary 90% of cases

Secondary

- AVN

- trauma

- instability

Pathology

Incidence

Knee > Hip

- superficial position

- limited cover of well vascularised muscle 

- watershed area of skin blood supply anterior to the skin incision 

- much increased in fully constrained prosthesis 

Ideal < 1%

Risk Factors

Increased with

- revision

- prior infection

- RA / Psoriatic arthropathy

- DM

Epidemiology

Adolescents & young adults

Usually between 12 - 21 years 

Throwing athletes / gymnasts

Little Leaguer's Elbow

- combination of capitellar OCD and MCL injury

- a repetitive throwing injury / seen in pitchers

Aetiology

1.  Trauma & Overuse

Common throwing sports / gymnastics