Effect of Preoperative Immunomodulatory Nutritional Intervention on Postoperative Complications and Sarcopenia in Patients With Bone and Soft Tissue Sarcomas
This study will evaluate whether a short nutritional intervention before surgery can improve recovery in patients with bone and soft tissue sarcomas. Patients with these tumors often have a higher risk of poor nutrition and loss of muscle mass. These problems may increase the risk of complications after major orthopedic surgery. Participants will be randomly assigned to one of two groups. One group will receive a special oral nutritional supplement twice daily before surgery, in addition to standard care. The other group will receive standard care without the preoperative nutritional supplement. The main aim of the study is to compare the rate of clinically relevant postoperative complications within 30 days after surgery. The study will also evaluate changes in muscle mass on CT scans, blood markers of nutrition and inflammation, nutritional risk, functional status, length of hospital stay, and tolerance of the nutritional supplement.
• Participants must meet all of the following criteria:
• Adult patients aged 18 years or older.
• Histologically confirmed bone sarcoma or soft tissue sarcoma.
• Localized or oligometastatic disease.
• Indicated for planned orthopedic tumor resection.
• Preoperative interval allowing administration of the nutritional intervention for at least 7 days, with 14 days preferred when clinically feasible.
• Ability to receive oral nutritional supplementation.
• Signed informed consent for participation in the study.