60
Participants
Start Date
November 4, 2024
Primary Completion Date
June 30, 2025
Study Completion Date
June 30, 2026
minimal invasive surgery-posterior atlantoaxial lateral mass joint fusion
Make a 4.5 cm incision along the median line and then dissect the trapezius, splenius capitis, and semispinalis capitis muscle laterally 1.5 cm off the median line. Retract the obliquus capitis inferior muscle to expose the C1-C2 intra-articular space. Remove the articular cartilage, insert allogenic granular bone and 3D-printed cage. Place the screws and rod in the same positions as conventional surgery, and the operation is completed.
Open atlantoaxial fixation and fusion
The Goel-Harms procedure will be used in the control group. Screws and rods are placed in the same position as in the experimental group, and a negative-pressure drain was placed until daily drainage was \<50 mL.
Peking University Third Hospital, Beijing
Hebei Medical University Third Hospital
OTHER
Shanxi Bethune Hospital
OTHER
Second Affiliated Hospital, School of Medicine, Zhejiang University
OTHER
Second Affiliated Hospital of Wenzhou Medical University
OTHER
Tianjin People's Hospital
OTHER
First Affiliated Hospital of Kunming Medical University
OTHER
Daping Hospital of Army Medical University
OTHER
Shengjing Hospital
OTHER
Third Bethune Hospital of Jilin University
UNKNOWN
Peking University Third Hospital
OTHER