Stress Metatarsal

In children common areas of appendicular stress fracture are the tibia, fibula or metatarsals and... 

Metatarsal Fractures 245 Base of 5 Metatarsal Fractures 246 Stress Fractures 247... 

In a degenerative setting, intense muscle contraction or abnormal stress forces exerted on healthy tendons may lead to avulsions at their sites of insertion into bone. These tears often lead to detachment and retraction of a bony fragment which remains embedded in the tendon. Avulsion injuries typically involve the supraspinatus tendon, causing retraction of a fleck of bone from the greater tuberosity, the peroneus brevis, leading to avulsion of the base of the fifth metatarsal, the flexor and extensor digi-... 

Stress fractures result from repetitive stress forces transferred to bone they can be divided in fatigue fractures and insufficiency fractures. Fatigue fractures occur when normal bone undergoes repetitive overuse stressing distal to the fracture site. Insufficiency fractures involve weakened bones that are more vulnerable to normal stresses these fractures are observed in aged women with osteoporosis and involve, in most cases, the calcaneus and the metatarsals. On the other hand, fatigue fractures typically involve the lower extremities... 

Weinfeld SB, Haddad SL, Myerson MS (1997) Metatarsal stress fractures. Clin Sports Med 16 319-338... 

---