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Unformatted text preview: with hypertrophic nonunion
2. Fixation with bone graft is needed in case of atrophic non union Mal-union
• Fragments join in an unsatisfactory position ( unacceptable angulation, rotation or shortening) • Causes: Failure to reduce a fracture adequately
Failure to hold reduction while healing proceeds
Gradual collapse of osteoporotic bone Mal-union
• Clinical features: • Deformity usually obvious , but sometimes the • true extent of malunion is apparent only on xray
Rotational deformity can be missed in the femur, tibia, humerus or forearm unless is compared with it’s opposite fellow Xray are essential to check the position of the fracture while uniting during the first 3 weeks so it can be easily corrected • • Treatement: – – In adults
• fracture should be reduced as near to the anatomical position as possible, apposition is important for healing wherease alignment and rotation it’s important for function
• Angulation more than 10 15 degrees in long bone or apparent rotational deformity may need correction by re
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This note was uploaded on 12/24/2011 for the course STEP 1 taught by Professor Dr.aslam during the Fall '11 term at Montgomery College.
- Fall '11