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Effect of Congenital C4?5 Synostosis on Adjacent Mobile Segments: Radiographic Assessment

Asian Spine Journal 2021년 15권 2호 p.139 ~ 142
문명상, 최원락, 임현규, Jeon Seong-Man, 유창근,
소속 상세정보
문명상 ( Moon Myung-Sang ) - Cheju Halla General Hospital Department of Orthopedic Surgery
최원락 ( Choi Won-Rak ) - Cheju Halla General Hospital Department of Orthopedic Surgery
임현규 ( Lim Hyuon-Gyu ) - Cheju Halla General Hospital Department of Orthopedic Surgery
 ( Jeon Seong-Man ) - Cheju Halla General Hospital Department of Orthopedic Surgery
유창근 ( Yu Chang-Geun ) - Cheju Halla General Hospital Department of Orthopedic Surgery

Abstract


Study Design: Prospective case series.

Purpose: To assess the corporal morphology of the fused body and adjacent segment conditions.

Overview of Literature: It is known that two fused vertebral bodies take the similar shape of the single body with inwaisting, with or without caudal flaring of the fused body, and that the fused body can cause the fusion disease at the adjacent segment that can be a risk factor for potential neurological compromise.

Methods: Radiograms of the 11 study subjects (six men and five women), aged 22?90 years who visited the outpatients’ clinic for various neck complaints without trauma history were examined. C4?5 synostosis was an incidental finding in all the subjects.

Results: All the fused bodies were inwaisted and had anterior caudal breaking but no interior corporal flaring. Adjacent segment disease was not found in eight patients aged <40 years. Disk degeneration was found at C3?4 and C5?6 in three patients each and at C6?7 in two patients. Disk degeneration was limited to the adjacent segments.

Conclusions: Degenerative disk changes are associated with the natural aging process, and the corporal morphology of the fused vertebral becomes inwaisted similar to that in the single vertebrae.

키워드

Synostosis; Cervical spine; Congenital; Spondylosis

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