Tuesday, July 7, 2009

Approaches - Posterior Approach to the Elbow

-Usually requires osteotomy

Uses

-ORIF fx’s distal humerus

-Removal loose bodies

-Non-unions


Positioning

-Diving Board

-Prone

-Tourniquet

-Arm abducted 90 degrees

-Elbow flexed over side of table


Landmark - palpate olecranon process


Incision - 5cm incision over the olecranon process that is curvilinear. Start lateral and curve it medially at olecranon


Intervervous plane - None


Superficial Dissection

-ulnar nerve as it curves post to medial epicondyle (protect)

-osteotomy 2cm from tip (v-shaped)

Deep Dissection

-Elevate tricep from back humerus

-Beware of radial nerve as is passes from post to ant through the lat intermuscular septum


Dangers

-ulnar nerve - beware traction

-median nerve - ant to distal humerus

-radial nerve - if prox extension of approach

-brachial artery - with median nerve

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