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Bone-Graft Resorption Reduced by the Induced Membrane Technique and Factors Affecting Volumetric Changes: An Analysis of 120 Serial Computed Tomographic Scans in 40 Patients

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Author(s)
Jae-Woo ChoWilliam T. KentChang-Wug OhBeom-Soo KimWon-Tae ChoJong-Keon Oh
Keimyung Author(s)
Kim, Beom Soo
Department
Dept. of Orthopedic Surgery (정형외과학)
Journal Title
Journal of Bone & Joint Surgery - American Volume
Issued Date
2020
Volume
102
Issue
14
Abstract
Background:
Little is known about the volumetric changes of grafted bone over time when using the induced membrane technique. This study investigates the volumetric changes of bone graft using serial computed tomographic (CT) scans following the induced membrane technique.

Methods:
Patients with critical-sized bone defects had serial CT scans after undergoing bone-grafting using the induced membrane technique. CT scans to evaluate the volume of bone graft were obtained immediately postoperatively and at 6 and 12 months. The change in the volume of bone graft was determined at 6 and 12 months postoperatively. Patient demographic characteristics, the location and composition of the bone graft, and the type of fixation construct were analyzed.

Results:
Forty patients met inclusion criteria. There were 27 tibiae and 13 femora with a mean size defect of 8.6 cm (range, 2.5 to 20.6 cm). Of these patients, 21 received autograft with cancellous bone graft and 19 received mixed autogenous bone with demineralized bone matrix (DBM) at a mean time of 17 weeks after the membrane formation. For the first 6 months, there was an overall osseous resorption of -9.9%. The overall graft volume from 6 to 12 months demonstrated an increase of osseous volume by +1.6%. For the entire 12-month period, there was a mean graft volume resorption of -8.3%. A correlation was found between the early volumetric changes of grafted bone and the percentage of DBM in the graft mixture. A correlation was also found between the late volumetric changes and the location of defect or the type of fixation.

Conclusions:
At 1 year after use of the induced membrane technique for the treatment of a critical-sized bone defect, resorption of the grafted bone averaged -8.3%. The volumetric changes were influenced by the property of the grafted bone, the fixation construct, and the location of the defect.

Level of evidence:
Therapeutic Level IV. See Instructions for Authors for a complete description of levels of evidence.
Keimyung Author(s)(Kor)
김범수
Publisher
School of Medicine (의과대학)
Citation
Jae-Woo Cho et al. (2020). Bone-Graft Resorption Reduced by the Induced Membrane Technique and Factors Affecting Volumetric Changes: An Analysis of 120 Serial Computed Tomographic Scans in 40 Patients. Journal of Bone & Joint Surgery - American Volume, 102(14), 1269–1278. doi: 10.2106/JBJS.19.00804
Type
Article
ISSN
1535-1386
Source
https://journals.lww.com/jbjsjournal/Fulltext/2020/07150/Bone_Graft_Resorption_Reduced_by_the_Induced.17.aspx
DOI
10.2106/JBJS.19.00804
URI
https://kumel.medlib.dsmc.or.kr/handle/2015.oak/43134
Appears in Collections:
1. School of Medicine (의과대학) > Dept. of Orthopedic Surgery (정형외과학)
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