Efficacy of Calcium Sulfate Pellets as Bone Graft Substitute in Lumbar Posterolateral Fusion.
- Author:
Seung Ku LEE
1
;
Choong Hyun KIM
;
Jin Hwan CHEONG
;
Koang Hum BAK
;
Jae Min KIM
;
Suck Jun OH
Author Information
1. Department of Neurosurgery, School of Medicine, Hanyang University, Seoul, Korea.
- Publication Type:Original Article
- Keywords:
Calcium sulfate;
Lumbar posterolateral fusion;
Substitute;
Modified Lenke scale
- MeSH:
Arthrodesis;
Autografts;
Bone Transplantation;
Calcium Sulfate*;
Calcium*;
Humans;
Spinal Diseases;
Spinal Fusion;
Transplants*
- From:Journal of Korean Neurosurgical Society
2001;30(5):605-610
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
OBJECTIVE: The authors investigated the efficacy of the calcium sulfate(OsteoSet(r) pellets) as an autograft extender when used to perform posterolateral lumbar fusions. PATIENTS AND METHODS: Twenty patients who underwent lumbar posterolateral arthrodesis for various spinal diseases between October 1999 and March 2000 were evaluated. Arthrodesis was performed by transpedicular screw fixation and bone grafting with a mixture of autograft + calcium sulfate in a 1:1 ratio. At time intervals of 1, 2, 3, and 6 months, postoperative radiographs were obtained to review the resorption of calcium sulfate and the evidence of fusion. A modified Lenke scale was used to assess the status of the fusion. RESULTS: At 2 months after operation, the average modified Lenke scale score for the OsteoSet(r) pellets group was 3.8. However at 6 months after operation, the average modified Lenke scale score for the OsteoSet(r) pellets group was 1.8. Resorption of calcium sulfate pellets was revealed in all cases at 6 months after surgery. CONCLUSION: It is presumed that a combination of calcium sulfate and autograft can play a role as an effective autograft extender in the posterolateral spinal fusion.
