PMID- 33049918 OWN - NLM STAT- MEDLINE DCOM- 20210702 LR - 20211204 IS - 2073-4409 (Electronic) IS - 2073-4409 (Linking) VI - 9 IP - 10 DP - 2020 Oct 8 TI - Safety and Tolerability of Stromal Vascular Fraction Combined with beta-Tricalcium Phosphate in Posterior Lumbar Interbody Fusion: Phase I Clinical Trial. LID - 10.3390/cells9102250 [doi] LID - 2250 AB - The rates of pseudarthrosis remain high despite recent advances in bone graft substitutes for spinal fusion surgery. The aim of this single center, non-randomized, open-label clinical trial was to determine the feasibility of combined use of stromal vascular fraction (SVF) and beta-tricalcium phosphate (beta-TCP) for patients who require posterior lumbar interbody fusion (PLIF) and pedicle screw fixation. Two polyetheretherketone (PEEK) cages were inserted into the intervertebral space following complete removal of the intervertebral disc. The PEEK cage (SVF group) on the right side of the patient was filled with beta-TCP in combination with SVF, and the cage on the left side (control group) was filled with beta-TCP alone. Fusion rate and cage subsidence were assessed by lumbar spine X-ray and CT at 6 and 12 months postoperatively. At the 6-month follow-up, 54.5% of the SVF group (right-sided cages) and 18.2% of the control group (left-sided cages) had radiologic evidence of bone fusion (p = 0.151). The 12-month fusion rate of the right-sided cages was 100%, while that of the left-sided cages was 91.6% (p = 0.755). Cage subsidence was not observed. Perioperative combined use of SVF with beta-TCP is feasible and safe in patients who require spinal fusion surgery, and it has the potential to increase the early bone fusion rate following spinal fusion surgery. FAU - Choi, Un Yong AU - Choi UY AUID- ORCID: 0000-0001-9331-1112 AD - Department of Neurosurgery, CHA Bundang Medical Center, CHA University, Seongnam-si 13496, Korea. FAU - Kim, Kyoung-Tae AU - Kim KT AUID- ORCID: 0000-0003-4867-6854 AD - Department of Neurosurgery, School of Medicine, Kyungpook National University, Daegu 41944, Korea. AD - Department of Neurosurgery, Kyungpook National University Hospital, Daegu 41566, Korea. FAU - Kim, Kwang Gi AU - Kim KG AUID- ORCID: 0000-0001-9714-6038 AD - Department of Biomedical Engineering, College of Medicine, Gachon University, Seongnam-si 13120, Korea. AD - Department of Health Sciences and Technology, Gachon Advanced Institute for Health Sciences and Technology (GAIHST), Gachon University, Seongnam-si 13120, Korea. FAU - Lim, Sang Heon AU - Lim SH AUID- ORCID: 0000-0002-1298-5180 AD - Department of Biomedical Engineering, College of Medicine, Gachon University, Seongnam-si 13120, Korea. AD - Department of Health Sciences and Technology, Gachon Advanced Institute for Health Sciences and Technology (GAIHST), Gachon University, Seongnam-si 13120, Korea. FAU - Kim, Young Jae AU - Kim YJ AUID- ORCID: 0000-0003-0443-0051 AD - Department of Biomedical Engineering, College of Medicine, Gachon University, Seongnam-si 13120, Korea. FAU - Sohn, Seil AU - Sohn S AD - Department of Neurosurgery, CHA Bundang Medical Center, CHA University, Seongnam-si 13496, Korea. FAU - Sheen, Seung Hun AU - Sheen SH AUID- ORCID: 0000-0002-0454-8810 AD - Department of Neurosurgery, CHA Bundang Medical Center, CHA University, Seongnam-si 13496, Korea. FAU - Heo, Chan Yeong AU - Heo CY AUID- ORCID: 0000-0001-9003-7365 AD - Department of Plastic and Reconstructive Surgery, Seoul National University Bundang Hospital, Seongnam-si 13620, Korea. FAU - Han, Inbo AU - Han I AUID- ORCID: 0000-0002-0834-9325 AD - Department of Neurosurgery, CHA Bundang Medical Center, CHA University, Seongnam-si 13496, Korea. LA - eng PT - Clinical Trial, Phase I PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20201008 PL - Switzerland TA - Cells JT - Cells JID - 101600052 RN - 0 (Benzophenones) RN - 0 (Calcium Phosphates) RN - 0 (Ketones) RN - 0 (Polymers) RN - 0 (beta-tricalcium phosphate) RN - 31694-16-3 (polyetheretherketone) RN - 3WJQ0SDW1A (Polyethylene Glycols) SB - IM MH - Adipose Tissue/metabolism MH - Aged MH - Benzophenones MH - Calcium Phosphates/metabolism/*pharmacology MH - Female MH - Humans MH - Ketones/pharmacology MH - Male MH - Mesenchymal Stem Cell Transplantation/methods MH - Mesenchymal Stem Cells/*metabolism MH - Middle Aged MH - Polyethylene Glycols/pharmacology MH - Polymers MH - Pseudarthrosis/surgery/*therapy MH - Spinal Fusion/methods MH - Treatment Outcome PMC - PMC7600447 OTO - NOTNLM OT - bone graft substitute OT - posterior lumbar interbody fusion OT - spinal stenosis OT - stromal vascular fraction COIS- The authors declare no conflict of interest. EDAT- 2020/10/15 06:00 MHDA- 2021/07/03 06:00 PMCR- 2020/10/01 CRDT- 2020/10/14 01:02 PHST- 2020/09/09 00:00 [received] PHST- 2020/10/03 00:00 [revised] PHST- 2020/10/06 00:00 [accepted] PHST- 2020/10/14 01:02 [entrez] PHST- 2020/10/15 06:00 [pubmed] PHST- 2021/07/03 06:00 [medline] PHST- 2020/10/01 00:00 [pmc-release] AID - cells9102250 [pii] AID - cells-09-02250 [pii] AID - 10.3390/cells9102250 [doi] PST - epublish SO - Cells. 2020 Oct 8;9(10):2250. doi: 10.3390/cells9102250.