Severe ankle sprain and overuse syndrome characterized by perennial muscle sprain achilles tendonitis. bony spur it is a degenerative condition due to repetitive movements and overloading activity. the anterior talofibular ligament (atfl) is the most common ligament torn by an ankle sprain. flamingo stirrup ankle brace gives you great relief. recommended in sprains and strains of the ankle joint and in post-operative rehabilitation. provided with pre-molded plastic shells & foam padding & velcro closure. allows normal flexion-extension movements of the ankle.