Table 1.

Summary of relevant publications.

Author	Type of study	N of patients	Stage	Follow up	Volume	Technique
Stefan Bohr (2015)9	Case report	1	Stage II according to Burton, Eaton and Littler; Stage I-II according to Dell.	12 months	1 mL	Coleman
Holger Erne12 (2018)	Case-control study	21 patients 12 (control – Lundborg resection arthroplasty) 9 (fat grafting)	Stages III and IV as classified by Eaton and Littler	23.6 months (ResectGroup) 18.1 months (FG)	1.3 mL
Elisabeth M. Haas11 (2019)	Case series	99 patients	Stages from I to III as classified by Eaton and Littler	12 months	1-2 mL
Christian Herold10 (2017)	Case series	50	Stages II-IV as classified by Eaton and Littler	12 months	1 mL	Coleman
Robert Kemper13 (2018)	Case series	12	I-II Eaton-Littler	12-24 months	2 mL	Arthroscopic debridment and fat grafting (sedimentation)