Open AccessUse of Nitinol Rods for Lumbosacral Spine Fixation (Prospective Randomized Clinical Study)
Author(s) -
С. В. Колесов,
В. В. Швец,
D. A. Kolobovskiy,
A. I Kaz’min,
Н. С. Морозова
Publication year - 2014
Publication title -
vestnik travmatologii i ortopedii imeni n.n. priorova
Language(s) - English
Resource type - Journals
eISSN - 2658-6738
pISSN - 0869-8678
DOI - 10.17816/vto20140219-24
Subject(s) - medicine , lumbosacral joint , pseudarthrosis , fixation (population genetics) , surgery , lordosis , lumbar , lumbar spine , radiography , population , environmental health
One hundred thirty operations were performed in patients (57 males, 73 females) with degenerative lumbar spine diseases during the period from 2010 to 2012. Mean age of patients made up 57 (45-82) years. Depending on the type of intervention all patients were divided into 2 groups: in 60patients (1st group) dynamic stabilization with nitinol rods without fusion and in 70patients (2nd group) rigid fixation of lumbar spine with titanium rods was performed. Outcomes were analyzed in 1.5 years after surgery. VAS, ODI and SF36 questionnaires showed improvement of patients’ condition in both groups. Restoration of lordosis was from 22 to 35° and from 23 to 37° in 1st and 2nd groups, respectively. No screw instability, bone tissue resorption around the screws and adjacent segment pathology was noted in group 1. Functional X-rays showed preservation of mobility (5+1.2°). In 2nd group formation of pseudarthrosis was recorded in 5patients, adjacent segment pathology - in 20 including 5 patients who required repeated surgical intervention. Transpedicular lumbosacral spine fixation using nitinol rods is an effective technique that enables to preserve movements in lumbosacral spine in combination with stable fixation