Table 2.
Lesion Characteristics and Prior and Concomitant Surgeries for Studies Identified in Systematic Review.
| Study No. | First Author, Year of Publication | Intervention | n (Patients) | Single or Multiple Lesions | No. with Prior Surgeries in Index Knee | No. with Concomitant Procedures in Index Knee |
|---|---|---|---|---|---|---|
| 1 | Cvetanovich, 2017 | ACI | 37 | Not reported | 37/37 patients | 22 |
| 2 | Gudas, 2009 | OATS | 25 | Single lesions | 0/25 patients | 0 |
| 2 | Gudas, 2009 | MFX | 22 | Single lesions | 0/22 patients | 0 |
| 3 | Lee, 2012 | MFX | 5 | Single lesions | 0/5 patients | 2 |
| 4 | Macmull, 2011 | ACI | 31 | 30/31 with single lesions; 1/31 with multiple lesions | Mean 1.4 ± 0.6 surgeries per knee | Not reported |
| 5 | Micheli, 2006 | ACI | 37 | 35/37 with single lesions; 2/37 with multiple lesions | 26/37 patients | Not reported |
| 6 | Mithöfer, 2005 | ACI | 20 | Mean 1.3 ± 0.3 per knee | Mean 2.5 ± 0.3 surgeries per knee | Not reported |
| 7 | Murphy, 2014 | OCA | 39 | 35/39 with single lesions; 4/39 with multiple lesions | Mean 1.5 surgeries per knee | 15 |
| 8 | Niethammer, 2016 | ACI | 40 | 37/40 with single lesions; 3/40 with multiple lesions | Not reported | Not reported |
| 9 | Ogura, 2017 | ACI | 27 | Mean 1.5 ± 1.0 per knee | 22/27 patients | 22 |
| 10 | Salzmann, 2012 | MFX | 10 | Single lesions | 4/10 patients | Not reported |
| 11 | Sasaki, 2012 | OATS | 11 | Single lesions | 0/10 patients | Not reported |
| 12 | Steadman, 2015 | MFX | 26 | Single and multiple lesions | Not reported | Not reported |
ACI = autologous chondrocyte implantation; MFX = microfracture; OATS = osteochondral autograft transplantation system; OCA = osteochondral allograft transplantation.