Anterior reduction and C1-ring osteosynthesis with Jefferson-fracture reduction plate (JeRP) via transoral approach for unstable atlas fractures

BMC Musculoskeletal Disorders

Xiangyang Ma¹  Hu Chen¹  Changrong Zhu¹  Qiang Tu¹  Qingshui Yin¹  Yuyue Chen¹  Jianhua Wang¹  Kai Zhang¹  Hong Xia¹  Xianhua Huang¹  Aihong Xu¹  Jianzhong Xu²  Zhan Li³ 

[1] Department of Orthopaedics, PLA General Hospital of Southern Theatre Command: People’s Liberation Army General Hospital of Southern Theatre Command;Department of Orthopaedics, Southwest Hospital, Third Military Medical University;Guangzhou University of Chinese Medicine;

关键词: Atlas;    Fractures;    Transoral approach;    Surgery;    Osteosynthesis;   

DOI  :  10.1186/s12891-021-04628-4

来源: DOAJ

【 摘 要 】

Abstract Background To introduce a novel transoral instrumentation in the treatment of unstable fractures of the atlas. Methods From January 2008 to May 2018, 22 patients with unstable C1 fractures who received Jefferson-fracture reduction plate (JeRP) via transoral approach were retrospectively analyzed. The case history and the radiographs before and after surgery were noted. The type of fracture, the reduction of the fracture, and position of the internal fixation were assessed through preoperative and postoperative CT scans. Results All 22 patients successfully underwent anterior C1-ring osteosynthesis using the JeRP system, with a follow-up of 26.84 ± 9.23 months. Among them, 9 patients had transverse atlantal ligament (TAL) injury, including 3 in Dickman type I and 6 in type II. The preoperative lateral mass displacement (LMD) decreased from 7.13 ± 1.46 mm to 1.02 ± 0.65 mm after the operation. Bone union was achieved in all patients without implant failure or loss of reduction. There were no surgery-related complications, such as wound infection, neurological deficit, or vertebral artery injury. However, atlantoaxial dislocation occurred in 3 patients with Dickman type I TAL injury 3 months postoperatively without any neurological symptoms or neck pain. Conclusions Transoral C1-ring osteosynthesis with JeRP is an effective surgical strategy to treat unstable atlas fractures with a safe, direct, and satisfactory reduction. The primary indication for the JeRP system is an unstable fracture (Gehweiler type I/III) or/ and TAL injury (Dickman type II).

【 授权许可】

Unknown