Therapeutic effect of posterior pedicle screw system combined with interbody fusion cage on lumbar spondylolisthesis

• Published in: Zhongguo xiu fu chong jian wai ke za zhi Vol. 21; no. 5; p. 449
• Main Authors: Zheng, Zhihe, Dong, Junfeng, Lu, Guoqiang
• Format: Journal Article
• Language: Chinese
• Published: China 01.05.2007
• Subjects: Adult; Aged; Bone Screws; Bone Transplantation; Female; Follow-Up Studies; Fracture Fixation, Internal - instrumentation; Fracture Fixation, Internal - methods; Humans; Internal Fixators; Lumbar Vertebrae - surgery; Male; Middle Aged; Spinal Fusion - instrumentation; Spinal Fusion - methods; Spondylolisthesis - surgery; Treatment Outcome
• ISSN: 1002-1892

To analyze the therapeutic effect of the posterior pedicle screw system combined with interbody fusion cage on lumbar spondylolisthesis. From February 2003 to March 2006, 37 lumbar spondylolisthesis patients were treated with this operation, including 21 males and 16 females and aging 39-69 years. The affected lumbars were L3 (3 cases), L4 (23 cases), and L1 (11 cases). According to the Meyerding-evaluating system, 12 cases were classified as degree I, 20 cases as degree II, and 5 cases as degree III. Taillard index, Boxall index, slipping angle, lumbar lordosis angle and intervertebral height index were measured before operation, and 2 weeks and 3 months after operation. All patients were followed up 3-36 months. There were statistically significant differences in Taillard index, Boxall index, slipping angle, lumbar lordosis angle and intervertebral height index between before operation and 2 weeks after operation (P < 0.05), and no statistically significant differences between 2 weeks and 3 months after ope