Volumetric Assessment of Fusion Mass and Its Clinical Correlations in Posterior Lumbar Interbody Fusion Depending on the Type of Bone Graft (후방 요추체간 유합술 후 골이식재에 따른 유합체의 체적 평가와 그 임상적 상관관계)

Jae Won Lee (이재원); Quan You Li (이권우); Kyoung-Tak Kang (강경택); Bong-Soon Chang (장봉순); Choon-Ki Lee (이춘기); Jin S. Yeom (염진섭); Ho-Joong Kim (김호중)

Volumetric Assessment of Fusion Mass and Its Clinical Correlations in Posterior Lumbar Interbody Fusion Depending on the Type of Bone Graft

Journal of Korean Society of Spine Surgery
Abbr : J Kor Spine Sur
2020, 27(2), pp.39-47
Publisher : Korean Society Of Spine Surgery
Research Area : Medicine and Pharmacy > Orthopedic Surgery
Received : June 30, 2020
Accepted : June 30, 2020
Published : June 30, 2020

Jae Won Lee ¹, Quan You Li ¹, Kyoung-Tak Kang ², Bong-Soon Chang ³, Choon-Ki Lee ³, Jin S. Yeom ⁴, Ho-Joong Kim ¹

¹분당서울대학교병원 정형외과학교실
²연세대학교 기계공학교실
³서울대학교병원 정형외과학교실
⁴서울대학교 의과대학 분당서울대학교병원 정형외과학교실

Accredited

ABSTRACT

Study Design: A prospective observational cohort study. Objectives: This study was conducted to analyze associations between the volume of the fusion mass and clinical outcomes 1 year after posterior lumbar interbody fusion (PLIF). Summary of Literature Review: No study has investigated associations between the size of the fusion mass and clinical outcomes after PLIF. Materials and Methods: The volume of the fusion mass and its clinical correlations after PLIF were analyzed in all patients and in subgroups. When a sufficient amount of local bone was available for grafting, only local bone without a graft extender was used (LbG group, n=20). If an inadequate amount of local bone was present for grafting, a local bone graft with porous hydroxyapatite bone chips was used (LbHa group, n=20). The same amount of demineralized bone matrix was used in both groups. The primary outcome was the relationship between the size of the fusion mass and clinical outcomes in all patients 1 year after surgery. The secondary outcome was a comparison of the size of the fusion mass and clinical outcomes by group. Results: The volume of the fusion mass was not correlated with any clinical outcomes 1 year after surgery, either in the overall group of patients or in the subgroup analysis. Conclusions: The volume of the interbody fusion mass was not related to any clinical outcomes 1 year after surgery. Furthermore, in cases with an insufficient amount of local bone for grafting, porous hydroxyapatite could be a relatively good alternative as a graft extender.

KEYWORDS

Lumbar spinal stenosis, Fusion mass, Hydroxyapatite, Posterior lumbar interbody fusion

Citation status

* References for papers published after 2023 are currently being built.

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This paper was written with support from the National Research Foundation of Korea.

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