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Flowchart of subjects in the fourth year of follow-up, 25 (22%) patients had one revision and two patients had two revisions, with a cumulative cost of $95,572 and QALY gain of 1.5. The cumulative cost for the NonOp group was $22,953 with a QALY gain of 0.3. This results in an ICER of $57,309 per QALY gained.
