Intertrochanteric (IT) hip fractures are defined as extracapsular hip fractures. The fracture line involves the trochanter and frequently extends into the subtrochanteric region. Another term used is a peritrochanteric hip fracture. Intertrochanteric hip fractures are common and will increase in frequency with an aging population. Patients are usually elderly, osteoporotic, and frail and with a low-energy fall mechanism or infrequently young with a high-energy mechanism. Numerous factors such as structurally weak bone, lack of subcutaneous padding, and slowed protective reflexes lead to an increased risk in the elderly. Secondary to strong muscular pull, fracture displacement is common. The majority of fractures require operative reduction and stabilization to allow for mobilization and to avoid shortening. Despite a high healing rate, return to function and ambulation is unpredictable in the elderly. Subtrochanteric (ST) fractures are defined as fractures below the trochanters and usually extending into the diaphyseal region. The fracture pattern is varied based upon mechanism. Subtrochanteric fractures are uncommon and usually occur in younger patients with high-energy mechanisms. Secondary to the higher energy mechanism, associated polytrauma injuries are common. Fracture displacement mandates urgent reduction and stabilization. Malreduction is common and healing is less predictable than intertrochanteric fractures.

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Intertrochanteric, Peritrochanteric, and Subtrochanteric Hip Fractures

  • Clifford B. Jones

摘要

Intertrochanteric (IT) hip fractures are defined as extracapsular hip fractures. The fracture line involves the trochanter and frequently extends into the subtrochanteric region. Another term used is a peritrochanteric hip fracture. Intertrochanteric hip fractures are common and will increase in frequency with an aging population. Patients are usually elderly, osteoporotic, and frail and with a low-energy fall mechanism or infrequently young with a high-energy mechanism. Numerous factors such as structurally weak bone, lack of subcutaneous padding, and slowed protective reflexes lead to an increased risk in the elderly. Secondary to strong muscular pull, fracture displacement is common. The majority of fractures require operative reduction and stabilization to allow for mobilization and to avoid shortening. Despite a high healing rate, return to function and ambulation is unpredictable in the elderly. Subtrochanteric (ST) fractures are defined as fractures below the trochanters and usually extending into the diaphyseal region. The fracture pattern is varied based upon mechanism. Subtrochanteric fractures are uncommon and usually occur in younger patients with high-energy mechanisms. Secondary to the higher energy mechanism, associated polytrauma injuries are common. Fracture displacement mandates urgent reduction and stabilization. Malreduction is common and healing is less predictable than intertrochanteric fractures.