Introduction Congenital failure of fusion of the medial and lateral ossification centers of the clavicle Epidemiology incidence rare location right side most common situs inversus is the exception bilateral in <10% Pathophysiology postulated to be due to extrinsic compression by the subclavian artery Genetics no clear genetic involvement Prognosis usually is asymptomatic and does not require treament if symptomatic, successful union predicted with surgical treatment Presentation Symptoms usually asymptomatic Physical exam inspection painless, nontender mass on clavicle may be associated with winging of scapula Imaging Radiographs recommended views AP of clavicle findings show rounded sclerotic bone at pseudoarthrosis site Treatment Nonoperative observation indications minimal symptoms and cosmetic deformity Operative - very uncommmon ORIF with iliac crest bone grafting at age 3-6 years indications pain functional impairment cosmesis outcomes successful union is usually obtained avoid bone graft substitute, higher rates of non-union
QUESTIONS 1 of 1 1 Previous Next You have 100% on this question. Just skip this one for now. Take This Question Anyway (OBQ04.179) Congenital pseudoarthrosis of the clavicle almost always presents on: Review Topic | Tested Concept QID: 1284 Type & Select Correct Answer 1 the right side, middle 1/3 57% (422/738) 2 the right side, lateral 1/3 16% (118/738) 3 the left side, middle 1/3 13% (95/738) 4 the left side, lateral 1/3 8% (56/738) 5 both sides equally 6% (44/738) L 3 Question Complexity D Question Importance Select Answer to see Preferred Response SUBMIT RESPONSE 1