求助翻译

1. The first 30-35° of kyphosis are corrected using the closing wedge technique with the hinge of the anterior longitudinal ligament after veretebrectomy and circumspinal decompression of the spinal cord. Then the hinge is moved posteriorly to the spinal cord and the remainder of the requisit angle of osteotomy is corrected using the opening-wedge technique
请问hinge of the anterior longitudinal ligament 怎样翻译符合原文?是"前纵韧带铰链"的意思吗?好象又不对。

2. Each correction rod is securely held with a rod holder, and correction of spinal deformity is meticulously performed using lever arm force under direct vision of the spinal cord, while loosening the connection of screws of the temporary rod
请问lever arm force 怎样翻译符合原文？是“杠杆臂力”吗？好象又不对。