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

• Published in: Asian spine journal Vol. 8; no. 2; pp. 129 - 137
• Main Authors: Ahn, Dong Ki, Moon, Sang Ho, Kim, Tae Woo, Boo, Kyung Hwan, Hong, Sung Won
• Format: Journal Article
• Language: English
• Published: Korea (South) Korean Society of Spine Surgery 01.04.2014; Korean Spine Society; 대한척추외과학회
• Subjects: Clinical Study; Demineralized bone matrix; Graft enhancer; Posterior lumbar interbody fusion; 정형외과학; Posterior lumbar interbody fusion; Graft enhancer; Demineralized bone matrix
• ISSN: 1976-1902; 1976-7846; 1976-7846
• DOI: 10.4184/asj.2014.8.2.129

A case controlled study with prospective data collection. 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). DBM is known as an osteoinductive material; however, it has not been clearly recognized to enhance auto-local bone with a small amount. 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. 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. DBM was not recognized to enhance auto-local bone with small amount.