Table 2.

Patient Activity After Cartilage Repair Intervention^a

Lead Author (Year)	Intervention	No. of Patients	Follow-up, mob	Outcome Measure	Return to Work, moc	Type of Work	Results
Lindahl17 (2001)	ACI	57	60 (24-120)	Modified Cincinnati	NRd	General	Mean days absent per year decreased from 155 to 1.5 after ACI. More than 80% of patients presented good/excellent clinical rating.
Bode1 (2015)	ACI + HTO	40	60.5 ± 2.5	Lysholm, VAS, KOOS	3.15 ± 2.58	General	Return to work depended on the workload.
Pestka24 (2016)	ACI	130	63.6 ± 27.6	Tegner	3.4 ± 2.75	General	Return to work did not appear to be influenced by patient age. Significant differences were found depending on work intensity according to the REFA score (grades 1-4).
Shaha31 (2013)	Osteochondral allograft	38	49.2 (7.2-106.8)	KOOS, SANE	12.1 ± 9	General and military	Only 11 patients were able to return to full duty.
Scully30 (2011)	Osteochondral allograft	18	40.8 ± 23.76	Descriptive data	23.2	General and military	7 of 18 patients returned to work. Only 1 patient returned to his or her previous job. The others returned to work, doing limited activity.

^aNo studies indicated the return to work outcome after other cartilage repair interventions (eg, microfracture, osteochondral autograft, stem cell therapy). ACI, autologous chondrocyte implantation; HTO, high tibial osteotomy; KOOS, Knee injury and Osteoarthritis Outcome Score; Lysholm, Lysholm-Gillquist score; NR, not reported; REFA, REFA Association; SANE, Single Assessment Numeric Evaluation; VAS, visual analog scale.

^bValues are expressed as mean ± SEM or mean (range).

^cValues are expressed as mean or mean ± SEM.

^dSee the Results section for more information.