Outcomes of the use of cement-augmented cannulated pedicle screws in lumbar spinal fusion

被引:17
|
作者
Son, Hee Jung [1 ]
Choi, Sung Hoon [1 ]
Heo, Dong Ryul [1 ]
Kook, Incheol [1 ]
Lee, Myoung Keun [1 ]
Ahn, Hyung Seob [1 ]
Kang, Chang-Nam [1 ]
机构
[1] Hanyang Univ, Dept Orthopaed Surg, Coll Med, 222 Wangsimni Ro, Seoul 04763, South Korea
来源
SPINE JOURNAL | 2021年 / 21卷 / 11期
关键词
Cement-augment cannulated screw; Loss of correction; Clear zone; Screw breakage; Screw migration; Screw pull-out; OSTEOPOROTIC SPINE; FIXATION; RISK; COMPLICATIONS; STRENGTH;
D O I
10.1016/j.spinee.2021.05.005
中图分类号
R74 [神经病学与精神病学];
学科分类号
摘要
BACKGROUND CONTEXT: There are few studies of the radio-clinical outcomes of cement-augmented cannulated pedicle screw (CPS) fixation in osteoporotic patients. PURPOSE: To compare the radiological and clinical outcomes between groups receiving cement-augmented CPS and solid pedicle screws (SPS) in lumbar fusion surgery. STUDY DESIGN/SETTING: Retrospective comparative study PATIENT SAMPLE: A total of 187 patients who underwent lumbar fusion surgery for degenerative spinal stenosis or spondylolisthesis from 2014 to 2019. OUTCOME MEASURES: Radiological evaluation included screw failure, cage failure, rod breakage, and fusion grade at postoperative 6 months and 1 year. Pre- and postoperative visual analog scales for back pain (VAS-BP), leg pain (VAS-LP), Korean Oswestry disability index (K-ODI), and postoperative complications were also compared. METHODS: Outcomes of patients with high risk factors for implant failure [old age, osteoporosis, autoimmune disease or chronic kidney disease (CKD)] who underwent open transforaminal lumbar interbody fusion with cement-augmented CPS fixation (Group C, n=55) or SPS fixation (Group S, n=132) were compared. RESULTS: 324 pedicle screws in Group C and 775 pedicle screws in Group S were analyzed. Group C had a significantly higher average age and lower T-score, and included more patients with autoimmune disease and CKD than group S (all p<.05). Clear zones, screw migration and loss of correction were significantly less frequent in Group C (all p<.05). Thirteen screw breakages were observed; they were only in Group C (4.0%) and all were in the proximal of the two holes. Inter-body and posterolateral fusion rates were not significantly different. At last follow-up, all clinical parameters including VAS-BP, VAS-LP, and K-ODI scores had improved significantly in both groups. Postoperative complications were not significantly different in the two groups. CONCLUSION: In lumbar fusion surgery, using cement-augmented CPS in high-risk groups for implant failure could be a useful technical option for reducing acute radiological complications and obtaining clinical results comparable to those obtained using SPS in patients with low risk of implant failure. (C) 2021 Elsevier Inc. All rights reserved.
引用
收藏
页码:1857 / 1865
页数:9
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