Valgus extension overload syndrome and stress injury of the olecranon.
Basic science studies have improved our understanding of the pathomechanics for valgus extension overload and olecranon stress fractures. These disorders result from repetitive abutment of the olecranon into the olecranon fossa combined with valgus torques, resulting in impaction and shear along the posteromedial olecranon. The patient history and physical examination are similar for each disorder. Imaging studies including plain radiographs, computed tomography, MRI or bone scan may be necessary for accurate diagnosis. Clinical and basic science support mandatory and careful assessment of the medial collateral ligament when valgus extension overload is identified and limited debridement of the olecranon when surgery is indicated. For stress fractures that fail nonoperative management, treatment with internal fixation provides good results.
Department of Orthopaedic Surgery, College of Physicians and Surgeons of Columbia University, 622 West 168th Street, PH 1132, 11th Floor, New York, NY 10032, USA. CSA4@columbia.edu
Christopher S
CS
Ahmad
Neal S
NS
ElAttrache
D001265:Athletic Injuries / Q000175:diagnosis* / Q000503:physiopathology / Q000628:therapy*; D004550:Elbow / Q000000981:diagnostic imaging / Q000503:physiopathology; D015775:Fractures, Stress / Q000175:diagnosis* / Q000628:therapy*; D006801:Humans; D019637:Orthopedic Procedures / Q000295:instrumentation / Q000379:methods; D010808:Physical Examination / Q000379:methods; D011859:Radiography; D013178:Sports Medicine / Q000379:methods; D013314:Stress, Mechanical; D014458:Ulna Fractures / Q000175:diagnosis* / Q000503:physiopathology / Q000628:therapy*; D000092464:Elbow Injuries