fixation

Conformity Materials Fixation Gender

Conformity

 

Definition

 

Geometric measure of the closeness of the fit of the knee articulation

 

Concepts

 

The ideal TKA maximises articular conformity while minimising axial constraint

 

Highly conforming / Fully congruent

- constant sagittal femoral radius

- large contact areas

- theoretical limitation of flexion to 120o due to posterior impingement of the tibial component

Capitellar OCD

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