[Surgical strategy and relevant problems about degenerative spinal deformity].

As the complicated and three-dimensional deformity, degenerative spinal deformity is common in middle-aged and elderly patients, which often accompanies with severe lumbar spinal stenosis and corresponding symptoms, high surgical difficulties and risks in perioperative periods. The aims of the surgery are removing decompression of spinal cord and nerve root, ending the process of deformity and rebuilding spinal balance. Recently, relevant problems of sagittal balance in degenerative spinal deformity have attracted more and more attention. Proper use of orthopedic technique and correct choice of upper and lower instrumented vertebra play a key role in deformity correction and improvement of postoperative symptoms.