Complications of total hip arthroplasty

Changed by Vincent Tatco, 14 Feb 2017

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Complications of hip joint replacements are common and are essential for the radiologist to be aware in the assessment of the radiographs with hip prostheses. They are many and can occur at various time intervals following the initial surgery:

aseptic loosening: considered to be the most common indication for revision surgery ^{1-2, 4}
infection of hip prostheses ^5-6
particle disease / histiocytic reaction / aggressive granulomatosis
fracture
- periprosthetic fracture
- cement fracture
- stem fracture
dislocation (~5% of all replacements ⁴)
- dislocation of femoral head out of the cup: component dissociation
- dislocation of the entire acetabular cup
- dislocation of stem
malpositioning
- creep: can lead to protrusio acetabuli
- polyethylene wear eccentric position of the femoral head component within the acetabular component
heterotopic bone formation
metal-on-metal pseudotumour
pseudobursae formation ²
abductor tendon tears
stress shielding
trochanteric bursitis

Image 8 X-ray (Pelvis ap) ( update )

Caption was changed:

Case 98: loose right femoral stem

Image 9 MRI (STIR SEMAC) ( update )

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Case 109: abductor tear and bursitis

Image 10 X-ray (Frontal) ( update )

Caption was changed:

Case 1110

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