PMID- 33649891 OWN - NLM STAT- MEDLINE DCOM- 20210602 LR - 20210915 IS - 1432-5195 (Electronic) IS - 0341-2695 (Linking) VI - 45 IP - 5 DP - 2021 May TI - Two-year clinical outcomes of autologous microfragmented adipose tissue in elderly patients with knee osteoarthritis: a multi-centric, international study. PG - 1179-1188 LID - 10.1007/s00264-021-04947-0 [doi] AB - PURPOSE: The aim of this study is to evaluate the outcomes of autologous microfragmented adipose tissue (MFAT) injection in elderly patients with knee osteoarthritis (OA). We hypothesized that MFAT knee infiltration for the treatment of knee OA would yield good clinical results out to two years follow-up. METHODS: Multi-centric, international, open-label study conducted by orthopedic surgery, and/or regenerative medicine facilities utilizing patient registries. Subjects recruited for eligibility. The primary outcome measure was Knee Injury and Osteoarthritis Outcome Score (KOOS). Outcomes and patient factors were compared to baseline, at six, 12, and 24 months. Statistical models were used to assess KOOS subscores and probability of exceeding the Minimally Clinically Important Difference (MCID) or Patient Acceptable Symptom State (PASS), and to assess the effect of the treatment variables on KOOS - Pain. RESULTS: Seventy-five patients, 120 primary treatments, mean age 69.6 years, (95%CI 68.3-70.9), BMI 28.4 (95%CI 27.3-29.6), with KL grade 2 to 4 knee OA treated with a single MFAT injection. KL grades 2 (15.1%), 3 (56.3%), and 4 (28.6%), with 20.8% of knees having previously undergone surgery. Patients with KL grade 2 disease had the best results in KOOS - Pain (P = 0.001), at six, 12, and 24 months. Including advanced KL grade 3 and 4 osteoarthritis patients, significant functional and quality of life success was seen in 106/120 treatments (88.3%, 66 patients) at all follow-up time points. Fourteen treatments (11.7%, 9 patients) failed prior to the study endpoint. CONCLUSION: This study shows that a single-dose MFAT injection leads to clinical, functional, and quality of life improvement at two years in elderly patients, in KL grades 2 to 4 of knee osteoarthritis. These findings provide evidence that this treatment modality could be a safe and effective option to other commonly available treatments in carefully selected patients. FAU - Gobbi, Alberto AU - Gobbi A AUID- ORCID: 0000-0002-4868-0119 AD - O.A.S.I Bioresearch Foundation Gobbi Onlus, Milan, Italy. FAU - Dallo, Ignacio AU - Dallo I AUID- ORCID: 0000-0003-2744-8342 AD - O.A.S.I Bioresearch Foundation Gobbi Onlus, Milan, Italy. FAU - Rogers, Christopher AU - Rogers C AD - San Diego Orthobiologics Medical Group, San Diego, CA, USA. FAU - Striano, Richard D AU - Striano RD AUID- ORCID: 0000-0001-6380-4178 AD - Optimum Joint, Suffern, NY, USA. FAU - Mautner, K AU - Mautner K AUID- ORCID: 0000-0001-8458-0126 AD - Emory Sports Medicine Center, Atlanta, GA, USA. FAU - Bowers, Robert AU - Bowers R AUID- ORCID: 0000-0001-6549-090X AD - Emory Sports Medicine Center, Atlanta, GA, USA. FAU - Rozak, Michael AU - Rozak M AUID- ORCID: 0000-0003-0728-7393 AD - Emory Sports Medicine Center, Atlanta, GA, USA. FAU - Bilbool, Norma AU - Bilbool N AD - Optimum Joint, Suffern, NY, USA. FAU - Murrell, William D AU - Murrell WD AUID- ORCID: 0000-0001-8835-1806 AD - Abu Dhabi Knee and Sports Medicine, Healthpoint Hospital, Zayed Sports City, Abu Dhabi, United Arab Emirates. doctormurrell@gmail.com. AD - Department of Orthopaedic Surgery, Division of Surgery, Ft. Bliss, William Beaumont Army Medical Center, El Paso, TX, USA. doctormurrell@gmail.com. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20210302 PL - Germany TA - Int Orthop JT - International orthopaedics JID - 7705431 SB - IM CIN - Int Orthop. 2021 May;45(5):1189-1190. PMID: 33822274 CIN - Int Orthop. 2021 Aug;45(8):2165-2166. PMID: 34255099 MH - Adipose Tissue MH - Aged MH - Humans MH - Knee Joint/surgery MH - *Osteoarthritis, Knee/surgery MH - Quality of Life MH - Treatment Outcome OTO - NOTNLM OT - Adipose-derived cell therapy OT - Autologous microfragmented adipose tissue OT - Bio-orthopaedics OT - Knee osteoarthritis OT - MFAT OT - OA OT - Orthobiologics EDAT- 2021/03/03 06:00 MHDA- 2021/06/03 06:00 CRDT- 2021/03/02 06:21 PHST- 2020/09/11 00:00 [received] PHST- 2021/01/12 00:00 [accepted] PHST- 2021/03/03 06:00 [pubmed] PHST- 2021/06/03 06:00 [medline] PHST- 2021/03/02 06:21 [entrez] AID - 10.1007/s00264-021-04947-0 [pii] AID - 10.1007/s00264-021-04947-0 [doi] PST - ppublish SO - Int Orthop. 2021 May;45(5):1179-1188. doi: 10.1007/s00264-021-04947-0. Epub 2021 Mar 2.