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

Infection Clinical Trial

Official title:

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

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT05255185
• Other study ID #: 2021-0151
• Status: Completed
• Phase: N/A
• Start date: August 1, 2017
• Est. completion date: October 1, 2021

Study information

• Verified date: January 2022
• Source: Second Affiliated Hospital, School of Medicine, Zhejiang University
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

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.

Description:

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.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 14
• Est. completion date: October 1, 2021
• Est. primary completion date: October 1, 2021
• Accepts healthy volunteers: No
• Gender: All
• Age group: N/A and older

Eligibility

Inclusion Criteria:

• Deep postoperative infections after replacement of a tumor-type prosthesis according to the 2011 diagnostic criteria of the Musculoskeletal Infection Society (MSIS) ;

• Treated with debridement and lavage with prosthesis preservation, local application of antibiotics, and no loosening during intraoperative exploration;

• With complete data for the main indicators (routine blood test results, C-reactive protein [CRP] level, erythrocyte sedimentation rate [ESR], X-ray and CT scans of the surgical site, and the Musculoskeletal Tumor Society [MTST] score).

Exclusion Criteria:

• Underwent debridement without prosthesis preservation;

• With a loose prosthesis during intraoperative exploration;

• With poor soft tissue coverage, such that complete free muscle flap coverage could not be achieved; patients with renal insufficiency/failure (serum creatinine = 2.0 mg/dL); patients with uncontrolled diabetes mellitus (hemoglobin A1c level > 8%);

• In poor general condition who could not tolerate surgery.

Related Conditions & MeSH terms

• Bone Neoplasms
• Communicable Diseases
• Infection
• Infections

Intervention

Procedure:
• domino therapy
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.

Locations

Country	Name	City	State
China	Department of Orthopedics, The Second Affiliated Hospital of Zhejiang University	Hangzhou	Zhejiang

Sponsors (1)

Lead Sponsor	Collaborator
Second Affiliated Hospital, School of Medicine, Zhejiang University

Country where clinical trial is conducted

China, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	success rate of patients undergoing domino therapy assessed by MSIS diagnostic criteria	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.	4 years