Periprosthetic metastasis: a rare cause for prosthetic loosening

Area of Science:

• Oncology
• Orthopedic Surgery
• Pathology

Background:

• Malignant periprosthetic metastasis is a rare complication of joint arthroplasty.
• Painful joint arthroplasty can be caused by various factors, including infection, loosening, and malignancy.

Observation:

• This study details a unique case of periprosthetic osteolysis following total hip replacement (THR).
• The osteolysis was attributed to metastatic mesothelioma, a rare form of cancer.

Findings:

• Histopathology after THR and revision THR confirmed metastatic mesothelioma.
• A CT scan of the chest identified the primary mesothelioma lesion.

Implications:

• This case underscores the necessity of considering metastatic disease in the differential diagnosis of painful periprosthetic osteolysis.
• Early identification and management of metastatic periprosthetic lesions are crucial for patient outcomes.