Upload
majed
View
73
Download
0
Tags:
Embed Size (px)
DESCRIPTION
Elbow Dislocation. 3-6% of all elbow injuries Peak: 13-14 yrs after closure of physes High association with the following fractures Medial epicondyle Coronoid Radial head and neck. Modified hinge joint Very stable Joint congruity Opposing tension of triceps and flexors Ligaments - PowerPoint PPT Presentation
Citation preview
Elbow Dislocation
• 3-6% of all elbow injuries• Peak: 13-14 yrs after closure of physes• High association with the following fractures– Medial epicondyle– Coronoid– Radial head and neck
• Modified hinge joint• Very stable– Joint congruity– Opposing tension of triceps and flexors– Ligaments• Most important: Medial Collateral Ligament
Mechanism of Injury
• Fall on an outstretched hand o elbow– Causes unlocking of the olceranon from the
trochlea + translation of the articular surfaces• 2 types of dislocation– Posterior– Anterior
Malunion Discussion
Malunion
• Described to be a fractured bone that did not heal in an anatomic position
• Bone may have: – Angulated– Rotated out of position– Overlapped with another bone
• Caused by: – Inadequate immobilization– Misalignment– Premature removal of an immobilizer
Non-union
• A fracture that did not heal after a span of several months
• Caused by:– Overdistraction– Excessive motion – Inadequate immobilization
Risk factors for poor fracture healing
• Smoking• Excessive alcohol intake• Malnutrion• Diabetes• NSAID, corticosteroids• Anticonvulsants and Thyroid Hormone
Replacement
Presentation
• History– A fracture that was not brought to a physician– Deformity– Pain, edema– Instability
• PE– Deformity and tenderness