Cost-effectiveness analysis of Coblation versus mechanical shaver debridement in patients following knee chondroplasty

Table 1 Revisions and clinical outcomes at 4 year follow-up

Outcomes^a	COBLATION	MSD
Overall revisions N (%)	4 (0.14)	14 (0.48)
Specific revisions N (%)
Osteotomy	2 (0.07)	4 (0.14)
Arthroscopy	1 (0.03)	2 (0.07)
Total Knee Arthroplasty	1 (0.03)	8 (0.28)
Pre-operative Outcome KOOS	15.50 (12.7)	11.30 (8.8)
Post-operative Outcome KOOS^b	71.80 (9.1)	53.20 (17.5)

KOOS Knee Injury and Osteoarthritis Outcome Score; MSD mechanical shaver debridement; TKA total knee replacement
^aOutcomes are from the randomized controlled trial [25]
^bStatistically significant difference in post-operative KOOS score between Coblation and MSD (p value < 0.001)

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