This study will be conducted to investigate the effect of selected therapeutic exercises compared to standard exercise program in improving ROM, muscle strength and functional outcomes in distal femur osteosarcoma patients who have undergone tumor resection and modular knee endoprosthesis.
Osteosarcomas (OS) are the most common primary bone tumor and third most common cancer among children and adolescents after lymphomas and brain cancers (Wang et al., 2018; Luetke et al., 2014). It is a primary malignant bone tumor with a worldwide incidence of 3.4 per million people per year (Mirabello et al., 2009). They are characterized by the production of osteoid, or immature bone, by malignant mesenchymal cells (Wang et al., 2018; (Luetke et al., 2014). Patients displayed some persisting physical difficulties including incapability to perform active range of motion (ROM), decreased muscle strength, altered gait and sit-to-stand patterns, yet they maintained high levels of emotional acceptance and coping. A surprising but important finding was the persisting hip weakness in both operated and non-operated limbs, which extends up to 42 months after resection around the knee. This indicates that continued rehabilitation programs emphasizing hip strengthening should be considered for these patients, even years after surgery (Beebe et al., 2009). Furthermore, ROM exercises, strengthening exercises and balance exercises improve overall Quality of life (QOL) for these patients (Marchese et al., 2006).
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
QUADRUPLE
Enrollment
40
they will receive knee flexion exercises and increase the extensor strength
ROM
knee flexion and extension ROM measured by goniometer
Time frame: 3 minutes
knee extensor muscle strength
measuring rectus femoris muscle strength by manual muscle testing
Time frame: 5 minutes
functional outcome
measurd by Musculoskeletal Tumor Society Rating Scale, minimum score is 0 and maximum score is 30 (higher scores indicating better function)
Time frame: 2 minutes
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