Neoplasms

All Conditions

Behaviors and Mental Disorders

Rare Diseases

Osteosarcoma

Sarcoma

Neoplasms, Connective and Soft Tissue

Neoplasms by Histologic Type

Quality of Life

Soft Tissue Sarcoma

Analgesics

Central Nervous System Depressants

All Drugs and Chemicals

Morphine

Patients who underwent surgical resection of a deep intramuscular soft tissue sarcoma of the thigh

A group of healthy age-matched individuals will be identified out of an available gait lab database to compare the gait pattern with tha of the patient group

Patients who underwent surgical resection of a bone or soft tissue sarcoma of the lower extremity

3D-motion analysis and strength assessment

Functional outcome

Quality of Life Questionnaire C-30 (QLQ-C30), Impact on Participation and Autonomy Questionnaire (IPAQ) and Musculoskeletal Tumor Society Score (MSTS)

Health related quality of life (HRQoL) assessment

Hazem Wafa

Moke Lieven

Primary bone and soft tissue sarcomas are an exceptionally rare form of cancer, collectively accounting for only 1% of all malignancies diagnosed. Sarcomas often occur in the patients' extremities and treatment typically involves limb salvage surgery with bone and/or muscle resection. These surgeries often leave the patients with disfigurements, psychological trauma, and functional disabilities. Perhaps, the most difficult and life-altering decision that patients (and their parents) with primary bone sarcomas about the knee joint have to make, involves choosing the type of surgical procedure that will provide them with the outcome that meets their functional as well as aesthetic expectations.

In literature, the quality of life for patients with osteosarcoma around the knee joint after three different surgical procedures, that is, amputation, endoprosthetic reconstruction and rotationplasty was evaluated. There was found that patients treated with rotationplasty showed significantly higher functional scores compared to the two other groups of patients. Also, researchers investigated the long-term quality of life after bone sarcoma surgery around the knee joint and found that, despite the functional disability, survivors were busy with work, study, relationships, and sometimes they have founded a family.

Most published reports in the literature on assessment of gait in the lower-extremity sarcoma survivors were focused on bone sarcoma patients after wide resection and endoprosthetic reconstruction. To the knowledge of the investigator, there has been no published studies on gait analysis after resection of soft tissue sarcomas (STS) of the lower extremity. The rare and heterogeneous aspects of STS and the paucity of knowledge of movement strategies in these patients hinder the development of effective rehabilitation protocols for recovering movement after resection of STS in the lower limb.

Primary bone and soft tissue sarcomas are an exceptionally rare form of cancer, collectively accounting for only 1% of all malignancies diagnosed. There have been dramatic improvements in the survival rate of sarcoma patients in the past 40 years owing to increasing effectiveness of chemotherapy. This, along with developments in imaging techniques, have led to earlier diagnosis and more accurate preoperative staging. It is estimated that there are nearly 50,000 survivors of bone and soft tissue sarcomas in the United States. 70% of those are younger than the age of 50 years. Whilst traditional treatment for bone tumors used to be amputation, advances in surgical techniques have made limb-salvage procedures a valid alternative method of treatment in 80-85% of patients with primary bone sarcomas.

Sarcomas often occur in the patients' extremities and treatment typically involves limb salvage surgery with bone and/or muscle resection. These surgeries often leave the patients with disfigurements, psychological trauma, and functional disabilities. Perhaps, the most difficult and life-altering decision that patients (and their parents) with primary bone sarcomas about the knee joint have to make, involves choosing the type of surgical procedure that will provide them with the outcome that meets their functional as well as aesthetic expectations. In literature, the quality of life for patients with osteosarcoma around the knee joint after three different surgical procedures, that is, amputation, endoprosthetic reconstruction and rotationplasty was evaluated. There was found that patients treated with rotationplasty showed significantly higher functional scores compared to the two other groups of patients. Also, researchers investigated the long-term quality of life after bone sarcoma surgery around the knee joint and found that, despite the functional disability, survivors were busy with work, study, relationships, and sometimes they have founded a family.

There are few reports available in the literature on the quality of life in sarcoma survivors. It was found that elderly patients, retired patients, and those who live alone need more intensive psychological care. Female patients were found to cope poorly with their disease compared to male gender. It was also found that the physical status greatly influences the overall outcome and quality of life in this group of patients. This stresses the importance of enrolment in tailored rehabilitation programs.

Most published reports in the literature on assessment of gait in the lower-extremity sarcoma survivors were focused on bone sarcoma patients after wide resection and endoprosthetic reconstruction. In literature, the gait pattern after endoprosthetic replacement around the knee joint was studied and found that, despite decreased walking velocity, stride length, and stance phase of the operated limb, these patients still have a symmetrical gait. Also in another report, an electromyographic assessment of gait after bone sarcoma surgery about the knee showed prolonged activation of rectus femoris and hamstring muscles in the affected limb compared to a control group. Other researchers found that limb-salvage patients often adopt a "stiff-legged" gait pattern. These findings are of utmost importance for the development of efficient rehabilitation programs for these patients.

To the knowledge of the investigator, there has been no published studies on gait analysis after resection of soft tissue sarcomas (STS) of the lower extremity. The rare and heterogeneous aspects of STS and the paucity of knowledge of movement strategies in these patients hinder the development of effective rehabilitation protocols for recovering movement after resection of STS in the lower limb. Researchers investigated the knee extension strength and postoperative functional outcome after quadriceps resection for soft tissue sarcoma of the thigh. They found that knee extension strength decreased when the number of resected quadriceps increased and this was associated with lower functional scores. They concluded that good functional results can be expected if at least two quadriceps muscles are preserved. However, no detailed assessment of gait in this group of patients has been published.

Assessment of the Functional Outcome and Quality of Life in Sarcoma Patients

To determine the physical and mental health for patients with extremity sarcoma

To measure cancer patients' physical, psychological and social functions

To measure health-related physical activity

Universitaire Ziekenhuizen KU Leuven

Infections

Symptoms and General Pathology

Musculoskeletal Diseases

Communicable Diseases

Bone Neoplasms

Disease Attributes

Bone Diseases

Anti-Infective Agents

Anti-Bacterial Agents

Antibiotics, Antitubercular

domino therapy treat the infection around the prosthesis after the limb salvage surgery of bone tumor

The investigators evaluated routine blood test results, C-reactive protein level, the erythrocyte sedimentation rate, and other indicators. X-rays and CT scans of the surgical site were obtained and the Musculoskeletal Tumor Society (MSTS) score was calculated. Treatment involved debridement and lavage of the prosthesis, and systemic and local antibiotics.

domino therapy

Zhaoming Ye

Tumor resection and prosthetic replacement have become the treatments of choice for malignant bone tumors. Infections are the main cause of failure of limb salvage surgeries. Therefore, treatment of infections around prostheses after limb salvage is important, but is also challenging. Our research team designed a "domino" sequential treatment plan to treat postoperative infections around tumor prostheses and evaluated its efficacy.

Malignant bone tumors are associated with high mortality and disability rates. Developments over the past 20 years have made tumor resection and prosthetic replacement the preferred surgical treatments. Prosthetic reconstruction maintains the continuity of limb bones and leads to better joint function, but is often associated with complications such as loosening, fracture, and infection of the prosthesis. Among these, infection is the most important cause of failed limb salvage surgery. Postoperative infection rates of 5-25% have been reported in the literature. Infection is also the main cause of secondary amputation. Therefore, it is important to address infections around the prosthesis after limb salvage.

Investigators retrospectively analyzed the use of prosthesis-preserving sequential therapy to treat patients with peripheral prosthesis infections after bone-tumor limb salvage. Investigators summarized and analyzed the treatment processes and performed laboratory, imaging, and functional evaluations after treatment. The purpose was to introduce a new type of domino sequential treatment plan for treating postoperative infections of tumor prosthesis, and evaluate the technical points of the plan, and prognosis over medium- and long-term follow-ups.

"Domino" Therapy Treat the Infection Around the Prosthesis After the Limb Salvage Surgery of Bone Tumor

Can "Domino" Therapy Effectively Treat the Infection Around the Prosthesis After the Limb Salvage Surgery of Bone Tumor？-----A Study of Sequential Therapy

Sequential treatment failure was defined as failure to treat infection within 2 years of follow-up, indicated by meeting the 2011 MSIS diagnostic criteria of infection around the prosthesis.

The following formula was used to calculate the success rate: success rate = (total number of patients-number of failed cases)/total number of patients.

Study title	NCT ID	Conditions	Interventions	Eligibility	Organization	Link
Assessment of the Functional Outcome and Quality of Life in Sarcoma Patients	NCT05051059	Soft Tissue Sar... Bone Sarcoma	Functional outc... Health related ...	18 Years - 95 Years	Universitaire Ziekenhuizen KU Leuven
"Domino" Therapy Treat the Infection Around the Prosthesis After the Limb Salvage Surgery of Bone Tumor	NCT05255185	Infection	domino therapy	-	Second Affiliated Hospital, School of Medicine, Zhejiang University

Spots Global Cancer Trial Database for limb salvage surgery