A retrospective study was conducted on the use of the instep plantar fasciotomy for the treatment of recalcitrant plantar fasciitis. A total of 83 patients (94 feet) were analyzed. The average postoperative follow-up time was 20.9 months. Surgery was deemed successful 93.6% of the time, and in 95.7% of cases, the patient would recommend the procedure to someone with the same condition. The main complications were scarring (9.6%), medial arch or heel pain (7.5%), cramping in the arch (6.4%), lateral column pain (5.3%), aching or pain across the dorsal midfoot (5.3%), and burning or tingling of the ball of the foot (5.3%).