Spinal nonfusion interspinous U titanium alloy for early degenerative intervertebral disk protrusion and dynamic spinal stenosis:Mechanical properties of the lumbar vertebra
- VernacularTitle:脊柱非融合U型棘突间钛合金材料植入治疗早期腰椎间盘突出伴动态椎管狭窄的腰椎力学性能
- Author:
Haidong XU
;
Qiang FU
;
Tiesheng HOU
- Publication Type:Journal Article
- From:
Chinese Journal of Tissue Engineering Research
2007;0(13):-
- CountryChina
- Language:Chinese
-
Abstract:
BACKGROUND:The new technique of spinal nonfusion is used for intervention of early spinal diseases. It can protect the spine motion function and treat the patients either. The interspinous U titanium alloy belongs to the new technique of spinal nonfusion. And this investigation will be a hot spot in the spinal nonfusion technique. OBJECTIVE:To explore the clinical mechanical property of spinal nonfusion interspinous U titanium alloy. DESIGN,TIME AND SETTING:Comparative observation. All patients were selected from the Department of Orthopaedics of Changhai Hospital between June 2006 and December 2007. PARTICIPANTS:A total of 28 patients with degenerative intervertebral disk protrusion and dynamic spinal stenosis,including 23 male and 5 female aged 41 to 58 years old. METHODS:All patients were randomly divided into two groups:intervertebral disectomy alone (n=20):affected segments were removed; implantation group (n=8):affected segments were removed and interspinous U titanium alloy was implanted following interspinous ligament. MAIN OUTCOME MEASURES:The height of the intervertebral space and vertebral canal area of the affected segment as well as JOA scores for lumbar vertebra postoperatively and during follow-up. RESULTS:All 28 patients were included in the final analysis. The height of the intervertebral space and vertebral canal area of the affected segment in implantation group were significantly increased compared with intervertebral disectomy alone group (P
