Tumor 239 articles
Do Long Term Survivors of Ewing Family of Tumors Experience Low Bone Mineral Density and Increased Fracture Risk?
Multimodal treatment regimens for Ewing’s sarcoma have led to survival rates approaching 70% of patients with no metastases at diagnosis. However, these treatments have long-term side effects. Low bone mineral density (BMD) and risk of fractures can occur owing in part to chemotherapy and limited mobility from local control of the primary tumor.
What Are the Results Using the Modified Trapdoor Procedure to Treat Chondroblastoma of the Femoral Head?
Treatment of chondroblastoma in the femoral head is challenging owing to the particular location and its aggressive nature. There is little published information to guide the surgeon regarding the appropriate approach to treating a chondroblastoma in this location. We developed a modified trapdoor procedure to address this issue. The primary modification is that the window surface of the femoral head is covered by the ligamentum teres rather than cartilage as in the traditional procedure.
Bone metastasis is a poor prognostic indicator in melanoma. Some authors have advocated only palliative treatment for patients with osseous disease.
Despite improvements in treatment of primary osteosarcoma, treatment of patients who have local recurrence is not well defined.
Prosthetic replacement is the most commonly used option for reconstruction of osteoarticular bone loss resulting from bone neoplasm resection or prosthetic failure. Starting in late 2001, we began exclusively using a single system for large-segment osteoarticular reconstruction after tumor resection; to our knowledge, there are no published series from one center evaluating the use of this implant.
Embolization of Hypervascular Bone Metastases Reduces Intraoperative Blood Loss: A Case-control Study
Small case series suggest that preoperative transcatheter arterial embolization minimizes bleeding and facilitates surgery for hypervascular metastatic bone tumors. However, control groups would make our confidence in clinical recommendations stronger, but small patient numbers make prospective trials difficult to conduct on this topic.
What Are the 5-year Survivorship Outcomes of Compressive Endoprosthetic Osseointegration Fixation of the Femur?
Aseptic complications such as stress shielding leading to bone loss are major problems associated with revision of cemented and uncemented long-stem tumor endoprostheses. Endoprosthetic reconstruction using compressive osseointegration fixation is a relatively new limb salvage technology designed to enhance osseointegration, prevent stress shielding, and provide fixation for short end-segments.
Obesity is a growing epidemic and has been associated with an increased frequency of complications after various surgical procedures. Studies also have shown adipose tissue to promote a microenvironment favorable for tumor growth. Additionally, the relationship between obesity and prognosis of soft tissue sarcomas has yet to be evaluated.
Does Competing Risk Analysis Give Useful Information About Endoprosthetic Survival in Extremity Osteosarcoma?
Conventional survival analysis for endoprosthetic complications does not consider competing events adequately. Patients who die of their disease are no longer at risk for complications; therefore, death as a competing event may alter survivorship estimates in the orthopaedic-oncological setting.