Unusual proximal tibiofibular synostosis

Abstract

Proximal tibiofibular synostosis without multiple hereditary exostosis is extremely rare and only 7 cases have been reported in the literature. All of the previously reported cases accompanied deformities such as distal positioning of the proximal tibiofibular joint, leg length discrepancy, bowing of the fibula, and valgus deformity of the knee. The present case of a 24-year-old man had neither a history of trauma nor deformity around the knee. Therefore, it was suggested that this type of synostosis occurred after epiphyseal plate closure.Résumé Une synostose tibio-fibulaire proximale sans une maladie exostosante héréditaire multiple est extréme-ment rare et seulement sept cas ont été mentionnés dans la bibliographie. Tous les cas précédemment rapportés s'accompagnaient de déformations telles qu'un positionnement distal de l'articulation tibio-fibulaire proximale, une anomalie dans la longueur de la jambe, une courbure de la fibula avec une distance interosseuse augmentée, et/ou une déformation en valgus du genou. Le cas présent concerne un homme âgé de 24 ans ne présentant pas l'antécédent d'un trauma ni d'un déformation du genou. Par conséquent, il est suggéré que ce type de synostose s'est produit aprés une obturation de la plaque épiphysaire.

Bilateral congenital dislocation of the patella associated with synostosis of proximal tibiofibular and proximal radioulnar joints: A case report

“…[7] This case report, on the other hand, is related to synostosis of the proximal tibiofibular joint which has been described in only a few reports. [8][9][10] Careful physical examination of the patella, which is small, relatively fixed, and lies laterally on the lateral condyle, is required. Ultrasonographic examination helps to locate the patella and verify the diagnosis.…”

“…Isolated synostosis of the proximal tibiofibular joint is uncommon and is usually presented in multiple hereditary exostosis, especially kissing osteochondromata, [8][9][10]15] or it may be related to other general syndromes and knee valgus. [16] O'Dwyer [16] reported three distinct patterns of proximal tibiofibular synostosis.…”

Proximal tibiofibular synostosis

“…[8,9] However, symptomatic idiopathic proximal tibiofibular synostosis has been rarely reported in the literature. [2,3] Sferopoulos [4] investigated proximal tibiofibular joint synostosis among 1,029 patients ÖZ Yirmi iki yaşında bir erkek hasta sol dizde hafif ağrı ile kliniğimize başvurdu. Ağrı 10 yıl önce başlamıştı ve travma öyküsü yoktu.…”

“…Proximal tibiofibular synostosis without multiple hereditary exostosis is extremely rare. [2][3][4] In this article, we reported a case of proximal tibiofibular joint synostosis with mild knee pain. [5] …”

Proximal Tibiofibular Synostosis, an Unexpected Complication of a Proximal Tibial Osteotomy

“…Synostosis at this site may be congenital [13], idiopathic [14], secondary to osteochondroma [15], secondary to multiple hereditary exostosis [16] or caused by trauma [17]. To our knowledge, no proximal tibiofibular synostosis due to proximal tibial medial open wedge osteotomy has been reported.…”