Asian Spine J.  2014 Apr;8(2):129-137. 10.4184/asj.2014.8.2.129.

Demineralized Bone Matrix, as a Graft Enhancer of Auto-Local Bone in Posterior Lumbar Interbody Fusion

Affiliations
  • 1Department of Orthopedic Surgery, Seoul Sacred Heart General Hospital, Seoul, Korea. adkajs@hanmail.net

Abstract

STUDY DESIGN: A case controlled study with prospective data collection. PURPOSE: To evaluate the early influence and the final consequence of demineralized bone matrix (DBM) on auto-local bone as a graft enhancer in posterior lumbar interbody fusion (PLIF). OVERVIEW OF LITERATURE: DBM is known as an osteoinductive material; however, it has not been clearly recognized to enhance auto-local bone with a small amount.
METHODS
Patients who had a PLIF were allocated into two groups. Group I (70 cases) used auto-local bone chips and group II (44 cases) used DBM as an additive to auto-local bone, 1 mL per a segment. Group selection was alternated. Early assessment was performed by computed tomography at 6 months and final assessment was done by simple radiography after 24 months at least. The degree of bone formation was assessed by 4 grade scale.
RESULTS
The subjects of both groups were homogenous and had similar Oswestry Disability Index at final assessment. The ratio of auto-local bone chips and DBM was 6:1. The degree of bone formation at 6 months after surgery was superior in group II. However, there was no significant difference between the two groups at the final assessment.
CONCLUSIONS
DBM was not recognized to enhance auto-local bone with small amount.

Keyword

Demineralized bone matrix; Graft enhancer; Posterior lumbar interbody fusion

MeSH Terms

Bone Matrix*
Case-Control Studies
Data Collection
Humans
Osteogenesis
Prospective Studies
Radiography
Transplants*
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