| Introduction |
 Must differentiate from
- congenital radioulnar synostosis
- Uncommon with an incidence of 3 to 9%
- Risk factors
- use of one incision for both radius and ulna
- both bone fx at same level
- delayed surgery until > 2 weeks
- high energy
- closed head injury
- infection
- screws that penetrate interosseous membrane
- bone grafting into interosseous membrane
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| Treatment |
- Physical exam
- unable to rotate forearm
- arm fixed in supination or pronation
|
| Treatment |
- Operative
- surgical resection of synostosis
- indications
- in mature posttraumatic synostosis that impairs function
- excision indicated at 4-6 months
- results
- results of resection are poor except for midshaft synostosis
- proximal radial excision
- indications
- reserved for patients who have a proximal radioulnar synostosis that is too extensive to allow a safe resection, involves the articular surface, and is associated with an anatomic deformity.
- results
- can provide forearm rotation however associated with instability and other complication
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