Bone stress injury reviews, High-risk versus low-risk anatomical sites

Reviews of stress reactions and stress fractures classify sites by risk of delayed healing, non-union or completion. High-risk sites (tension-side femoral neck, anterior tibial cortex, tarsal navicular, fifth metatarsal base, medial malleolus, talus) need aggressive offloading; low-risk sites (posteromedial tibia, fibula, calcaneus, metatarsal shafts, sacrum, femoral shaft) usually heal with activity modification. Moderate to strong (consistent clinical classification).