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  • Title: Long-term results after a free vascularized adipofascial graft for congenital proximal radioulnar synostosis with an average follow-up of 10 years: a series of four cases.
    Author: Kanaya K, Iba K, Yamashita T.
    Journal: J Shoulder Elbow Surg; 2016 Aug; 25(8):1258-67. PubMed ID: 27422459.
    Abstract:
    BACKGROUND: The aim of this study was to observe the long-term and chronologic changes in clinical and radiologic findings after a free vascularized adipofascial graft interposition with radial osteotomy for congenital proximal radioulnar synostosis (PRUS). METHODS: Six forearms in 4 patients with congenital PRUS who underwent a free vascularized adipofascial graft interposition combined with radial osteotomy were followed up for an average of 10 years (8-12 years) postoperatively. Extension and flexion angles of the elbow and pronation and supination angles of the forearm as well as radiographs were evaluated preoperatively and throughout the postoperative follow-up period. RESULTS: The average extension/flexion angles of the elbow and the average pronation/supination angles of the forearm were 3°/130° and 14°/- before surgery, -4°/135° and 39°/23° at 1 year after surgery, 6°/138° and 44°/30° at 3 years after surgery, and -2°/139° and 35°/7° at the time of the final follow-up, respectively. Final radiographs showed hypertrophy of the radial head in 4 patients, dislocation of the radial head in 2 patients, and deformity of the radial head in 1 patient. CONCLUSIONS: Extension and flexion angles of the elbow in patients with congenital PRUS were constant and the average range of pronation was relatively well maintained throughout the postoperative period, but the average range of supination decreased by 16° from 1 year postoperatively to the time of the final follow-up.
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