druj

Options

Darrach's

- distal ulna excision

- best for elderly RA patient

Bower's interpositional hemiarthoplasty

Technique

Anatomy

1.  TFCC 

- central articular disc

- TFCC is major stabiliser of DRUJ

- arises ulnar aspect of lunate fossa of radius

- inserts fovea at base of ulna styloid

2.  Dorsal and Palmar Radio-Ulna ligaments 

Thick fibrous structures

- from ulna styloid

- important stabilises of DRUJ

In normal wrist

- Dorsal RU ligament tight in pronation

Types

Dorsal

- most common

Volar

Causes

1.  Acute traumatic peripheral tear TFCC with DRUJ dislocation

- usually major trauma

- dorsal or volar

2A.  Distal radial fracture