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Hip fracture

Background knowledge 🧠

Definition

Hip fractures are a break in the proximal end of the femur, near the hip joint.

Epidemiology

  • Common in the elderly, especially in osteoporotic individuals.
  • Increased incidence in females post-menopause due to decreased bone mineral density.

Types

  • Intracapsular: Fracture within the joint capsule (e.g., femoral neck fracture).
  • Extracapsular: Fracture outside the joint capsule (e.g., intertrochanteric, subtrochanteric fractures).

Clinical Features πŸŒ‘️

Clinical Features

  • Pain in the groin or outer upper thigh.
  • Unable to weight bear on the affected side.
  • Affected leg may appear shortened and externally rotated.

Investigations πŸ§ͺ

Tests

  • X-ray of the pelvis and hip: Anteroposterior (AP) and lateral views are standard.
  • CT scan: If x-ray is inconclusive but high clinical suspicion remains.

Management πŸ₯Ό

Management

  • Analgesia: Often required to manage pain.
  • Surgery: Depending on the type and location of fracture.
    • Internal fixation.
    • Hemiarthroplasty.
    • Total hip replacement.
  • Multidisciplinary team input: Including physiotherapy for rehabilitation.

Complications

  • Deep vein thrombosis (DVT) and pulmonary embolism (PE).
  • Pressure sores due to immobility.
  • Infection, especially if surgical intervention was involved.
  • Non-union or malunion of the fracture.
  • Avascular necrosis: Particularly in intracapsular fractures.

Prognosis

  • Depends on patient’s age, general health, type of fracture, and timeliness of treatment.
  • Mortality rate can be significant in the elderly, especially if surgery is delayed.

Key Points

  • Hip fractures are either intracapsular or extracapsular.
  • Early diagnosis and management is crucial to prevent avascular necrosis and reduce risk of mortality.
  • Patient often presents with a severely painful hip and inability to weight bear where limb may appear shortened and externally rotated.
  • Anteroposterior (AP) and lateral views on X-ray are standard for diagnosis.
  • Surgery is the mainstay of management dependent on the type and location of fracture, along with analgesia and physiotherapy.

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