Prosthetic Loosening in a Total Hip Arthroplasty Patient After Breast Cancer Chemotherapy and Hormonal Therapy: A Case Report
Abstract
Background: Studies have shown that there are a lot of risk factors that could cause periprosthetic osteolysis and aseptic loosening, threatening the life-span of the hip prosthesis. Breast cancer is one of the most frequent malignancy in women. However, the use of breast cancer chemotherapy and hormonal therapy has been shown to significantly elevate the risk of osteoporosis. Chemotherapy can systematically suppress the anabolism of various organs, ultimately leading to bone metabolism dysfunction and osteolysis. Aromatase inhibitors (AI) function by inhibiting the conversion of androgens to estrogen, thereby reducing systemic estrogen levels, which is essential for maintaining bone mass; however, prolonged estrogen deprivation can lead to osteoporosis, which has been proven to pose a significant threat to the survival of hip implants.
Case presentation: In this case, the patient suffered hip joint tuberculosis and took intertrochanteric osteotomy procedure at age 24. Seventeen years after, she took Total Hip Arthroplasty (THA). She then undertook chemotherapy and hormonal therapy for breast invasive ductal carcinoma (BI-RADS category III), 1 year after her primary THA. Three years later, she was diagnosed with aseptic loosening of her hip prosthesis. A summary and analysis of her treatment were conducted.
Conclusion: Breast cancer chemotherapy and hormonal therapy might be a threat to the stability of THA prosthesis. More attention should be paid when a Total Hip…
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