McGuire R A, Amundson G M
Department of Orthopaedics, University of Mississippi Medical Center, Jackson.
Spine (Phila Pa 1976). 1993 Sep 15;18(12):1662-72. doi: 10.1097/00007632-199309000-00015.
A prospective randomized study was designed to examine differences in the primary fusion rate between two surgically treated groups of patients with spondylolisthesis. Twenty-seven patients underwent L5 laminectomy (Gill procedure) and L5 nerve root decompression. Fourteen patients (group I) underwent in-situ posterolateral fusion, thirteen patients (group II) received internal stabilization with the Steffee plate and screw system. All patients were followed for a minimum of two years. Ten of fourteen (72%) patients treated with non-instrumented fusion went on to union. Ten of thirteen (78%) patients treated with internal fixation achieved union. No statistically significant increase in the primary fusion rate occurred with addition of internal fixation compared to non-instrumented posterolateral grafting alone.
一项前瞻性随机研究旨在检验两组接受手术治疗的腰椎滑脱患者的初次融合率差异。27例患者接受了L5椎板切除术（吉尔手术）和L5神经根减压术。14例患者（I组）接受了原位后外侧融合术，13例患者（II组）接受了Steffee钢板螺钉系统内固定术。所有患者至少随访两年。接受非器械融合治疗的14例患者中有10例（72%）实现了融合。接受内固定治疗的13例患者中有10例（78%）实现了融合。与单纯非器械后外侧植骨相比，增加内固定后初次融合率没有统计学上的显著提高。
