Wang Y, Ye Q, Qiu G, Lin J, Zhang J
Department of Orthopedic Surgery, PUMC Hospital, CAMS & PUMC, Beijing 100730.
Chin Med Sci J. 2001 Jun;16(2):93-7.
An internal fixation apparatus--distraction reduction fixation system (DRFS) was designed to satisfy the clinical needs for spondylolisthesis.
Since 1996, 53 patients were treated with DRFS. Among them, 35 had spondylolisthesis, 12 had lumbar canal stenosis accompanied with instability, 2 had vertebral tumors and 4 suffered from spinal fracture. The average age was 53.6 years old (ranged 24 approximately 72 yrs). The mean time for follow-up was 30.6 months (16 approximately 44 months).
The slip rate was 0.15 +/- 0.10 before operation, and decreased to 0.09 +/- 0.07 after operation. Entire slip reposition was achieved in 19 cases (54.3%). The change in height of the intervertebral space within the fixation segments was 0.7 +/- 0.17.
DRFS achieved better results for spondylolisthesis less II degree and no other adverse effects were found. Compared with other foreign and domestic techniques, it had advantages in less implants, less operation gears required and ease to utilize in operation. It was proved to be an ideal internal fixation apparatus.
设计一种内固定装置——撑开复位固定系统（DRFS），以满足腰椎滑脱症的临床需求。
自1996年以来，53例患者接受了DRFS治疗。其中，35例患有腰椎滑脱症，12例患有腰椎管狭窄症伴不稳定，2例患有椎体肿瘤，4例患有脊柱骨折。平均年龄为53.6岁（24岁至72岁）。平均随访时间为30.6个月（16个月至44个月）。
术前滑脱率为0.15±0.10，术后降至0.09±0.07。19例（54.3%）实现了完全滑脱复位。固定节段内椎间隙高度变化为0.7±0.17。
DRFS对Ⅱ度以下腰椎滑脱症取得了较好的治疗效果，未发现其他不良反应。与国内外其他技术相比，它具有植入物少、所需手术器械少、术中易于使用等优点。被证明是一种理想的内固定装置。
