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Methods

A number of 3 patients with chronic knee pain and unsuccessful treatments were submitted to US-guided PRF of the superior medial, superior lateral, and inferior medial genicular nerves. The landmarks used where an adaptation of those described by Fonkoue L, et al. 1 in their anatomic study. The Brief Pain Inventory (BPI) and Western Ontario and McMaster Universities Osteoarthritis (WOMAC) scores were assessed before treatment, and at 30 days following the procedure.

Results

All patients had a similar severity pain baseline–mean WOMAC score of 78.6 (range 75–81) and mean VAS score of 69 (range 65–72). All patients had a reduction of perceived pain and functionality with improvement of 35% in WOMAC score (mean 51.3) and 50.7% in BPI score (mean 35). No adverse outcomes reported.