Background/Objectives: Soft tissue sarcomas (STSs) are extremely uncommon tumors with a high rate of local recurrence that often require very demolitive surgery. The aim of our study is to propose a specific rehabilitation protocol for patients with STSs, based on the kind of demolition and reconstructive surgery performed, and evaluate its effects. Methods: The protocol was developed on the basis of the clinical experiences of physiatrists and surgeons, as well as data from the literature, recommending timelines for postural steps, verticalization, walking, and therapeutic exercises, in accordance with wound healing times and in order to prevent complications from disuse and immobility. The Barthel Index Scale (BI), the Numeric Rating Scale (NRS), the Adapted Patient Evaluation Conference System (APECS), and the 10 Meter Walk Test (10 MWT) were used to clinically evaluate patients before and after the rehabilitation treatment. Results: Thirty-one patients with primary STSs were enrolled. Following the rehabilitation program, we found a statistically significant improvement in mBI (p < 0.001), APECS (p ≤ 0.001), and NRS (p = 0.001). In a subgroup of patients (n = 18) assessed with the 10 MWT, a statistically significant increase in walking speed was observed (p = 0.012). Conclusions: Patients who completed rehabilitation following the proposed protocol, customized according to the surgical intervention type, demonstrated marked improvements in motor performance, ability in daily activities, walking, and pain. The proposed protocol can assist the multidisciplinary team of surgeons, oncologists, and rehabilitators in maintaining alignment on patient management, thereby ensuring clear indications regarding the activities that patients can and cannot undertake during the recovery period.

Background: Soft tissue sarcomas (STSs) are rare and heterogeneous malignancies requiring a multidisciplinary approach to diagnosis and treatment. Advances in surgical techniques, chemotherapy, and radiotherapy have improved survival rates but often result in significant functional impairments, particularly in patients undergoing limb-sparing procedures. Rehabilitation is crucial for restoring mobility and independence, with recent studies emphasizing the importance of personalized rehabilitation protocols tailored to specific surgical interventions. Quantitative assessments, such as 3D motion capture and surface electromyography, provide objective insights into gait performance and motor function, enabling more precise rehabilitation strategies to optimize recovery. Methods: This study evaluated gait performance in 21 patients with lower-limb impairment following limb-sparing surgery for STS. Patients underwent two instrumented gait assessments using marker-based 3D motion capture and surface electromyography to measure spatiotemporal gait parameters, joint kinematics, and muscle activity. Independence in the activity of daily living was assessed with the modified Barthel Index in both timepoints. Results: Following rehabilitation, patients demonstrated significant improvements in functional independence, as reflected by an increase in the modified Barthel Index (p < 0.001). Gait analysis revealed increased walking speed, stride length, cadence, and improved joint range of motion at the hip, knee, and ankle, though electromyographic analysis showed no statistically significant differences in muscle activation patterns or co-contraction indices. Conclusions: These findings underscore the importance of a rehabilitation programs personalized on gait strategies. A deeper understanding of motor adaptations based on sarcoma location and surgical approach could further refine rehabilitation protocols, ultimately enhancing patient outcomes and quality of life.