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KMID : 1377020150120030203
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Tissue Engineering and Regenerative Medicine
2015 Volume.12 No. 3 p.203 ~ p.210
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K-ROD internal fixation system ameliorates lumbar adjacent segment degeneration: Two-year clinical outcomes of 66 patients
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Yang Qu
Rongpeng Dong
Mingyang Kang
Jianwu Zhao
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Abstract
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We wanted to know whether K-ROD (KD) internal fixation system could ameliorate lumbar adjacent segment degeneration (LASD) diseases. From May 2010 to May 2012, 66 patients with lumbar LASD were repaired via KD system. The outcome for LASD was analyzed using visual analogue scale (VAS), Oswestry disability index (ODI) and the 36-Item Short Form Health Survey. Meanwhile, range of motion (ROM) of total lumbar and dynamic fixation segments were also examined. Twelve patients inquired the removal of KD system because of fatigue during the first year after surgery. For remaining patients, the mean VAS score for back pain was 45.2±28.7 before operation, and decreased to 22.3±14.2 after two-year surgery (p<0.01); meanwhile, the mean ODI score was decreased from 76.5±11.2% to 21.1±5.4% (p<0.01). SF-36 parameters were significantly improved compared with those acquired the removal of KD system (p<0.01). Total 45 patients restored flexion-extension ROM after surgery (p<0.01). More than 80% disc generation was improved by KD system. KD system is an effective therapeutic way for treating LASD patients. The dynamic stabilization system preserves the motion of fixation segment and provides an alternative for therapy of lumbar LASD.
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KEYWORD
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K-ROD fixation system, Lumbar adjacent segment degeneration, Visual analogue scale, Oswestry disability index
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