<prompt> Jones fracture is fracture of -MetatarsalMetacarpalProximal phalynxDistal phalynx  <response>: Ans. is a i.e., Metatarsal Fracture of the base of 5th metatarsal Jones fracture This is a fracture at the base of the 5th metatarsal, caused by the pull exerted by the tendon of the peroneus brevis muscle inserted on it. Clinically, there is pain, swelling and tenderness at the outer border of the foot, most marked at the base of the 5th metatarsal. Diagnosis is easily confirmed on X-ray. Treatment is by a below-knee walking plaster cast for 3 weeks. 