Type II: nonweight-bearing immobilization vs. Type I: nonweight-bearing immobilization for six to eight weeks (may require up to 20 weeks) Stress fracture of the proximal metatarsal within 1.5 cm of tuberosity In an avulsion fracture, a small piece of bone is pulled off the main portion of the bone by. Two types of fractures that often occur in the fifth metatarsal are: Avulsion fracture. The fifth metatarsal is the long bone on the outside of the foot that connects to the little toe. Types II, III: variable healing potential Fifth metatarsal fractures (breaks) are common foot foot injuries. surgical fixation for active athletes or patients preferring surgical therapy Type I: nonweight-bearing immobilization for six to eight weeks As one of the most common fractures of the foot, the blood supply characteristics and unique anatomy of proximal fifth metatarsal fracture makes a high risk of delayed union or non-union of fractures occurring at the junction of the diaphyseal-metaphyseal. Laterally directed force on forefoot with ankle in plantar flexion Although most fractures of the proximal portion of the fifth metatarsal respond well to appropriate management, delayed union, muscle atrophy and chronic pain may be long-term complications.Īcute fracture of the proximal metatarsal within 1.5 cm of tuberosity (Jones fracture) A metaphysis fracture is also called a Jones fracture. All displaced fractures and type III fractures should be managed surgically. A proximal diaphysis fracture is typically a stress fracture, commonly among athletes. Type II fractures may also be treated conservatively or may be managed surgically, depending on patient preference and other factors. Type I fractures are generally treated conservatively with a nonweight-bearing short leg cast for six to eight weeks. Management and prognosis of both acute (Jones fracture) and stress fracture of the fifth metatarsal within 1.5 cm of the tuberosity depend on the type of fracture, based on Torg's classification. Nondisplaced tuberosity fractures are usually treated conservatively, but orthopedic referral is indicated for fractures that are comminuted or displaced, fractures that involve more than 30 percent of the cubo-metatarsal articulation surface and fractures with delayed union. Local bruising, swelling and other injuries may be present. Tuberosity avulsion fractures cause pain and tenderness at the base of the fifth metatarsal and follow forced inversion during plantar flexion of the foot and ankle. Care should be taken in differentiating an avulsion. Fractures of the proximal portion of the fifth metatarsal may be classified as avulsions of the tuberosity or fractures of the shaft within 1.5 cm of the tuberosity. Metatarsal fractures are common in the paediatric population and rarely require operative management.
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