Complications of total hip arthroplasty

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

a~~Aseptic~~septic loosening - considered to be the most common indication for revision surgery ^{1-2, 4}
~~Infection~~infection of hip prostheses
~~Particle~~particle disease - histiocytic reaction - aggressive granulomatosis
~~Fracture~~fracture
- periprothesthetic fracture
- cement fracture
- stem fracture
d~~Dislocation~~islocation (~5% of all replacements ⁴)
- dislocation of femoral head out of cup - component dissociation
- dislocation of entire acetabular Cup
- dislocation of stem
~~Malpositioning~~malpositioning
- creep - can lead to protrusio acetabuli
- polyethylene wear eccentric position of the femoral head component within the acetabular component
~~Heterotopic~~heterotopic bone formation
~~Metal~~metal on metal pseudotumour
~~Pseudobursae~~pseudobursae formation ²
~~Abductor~~abductor tendon tears
trochanteric bursitis

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fracture","thumbnail":"https://prod-images-static.radiopaedia.org/images/59277170/39246cdc609903ce07cc62d7326870a82c653299de74443919fa5869722d8625_big_gallery.jpeg","isStack":false,"diagnosticCertainty":"confirmed_substantiated"},{"imageId":59543804,"studyId":126063,"caseSlug":"hip-prosthesis-dislocation-4","caption":"Case 17","thumbnail":"https://prod-images-static.radiopaedia.org/images/59543804/3b69c1bd5c58be1192800afdd2bf926c5e31add480a35215cae89df3d55b7a95_big_gallery.jpeg","isStack":false,"diagnosticCertainty":"confirmed_substantiated"},{"imageId":59714556,"studyId":126814,"caseSlug":"dislocated-tumour-prosthesis","caption":"Case 18: dislocated tumor prosthesis","thumbnail":"https://prod-images-static.radiopaedia.org/images/59714556/54975f8f4dfb6d111d008c998e4310bb98239f27e6e96fb5417b85a1f6fa4bd6_big_gallery.jpeg","isStack":false,"diagnosticCertainty":"confirmed_substantiated"}],"ddx_inclusions":[],"lang":"us"}

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Complications of total hip arthroplasty

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