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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT04980729
Other study ID # 2020-453
Secondary ID
Status Completed
Phase N/A
First received
Last updated
Start date January 1, 2013
Est. completion date July 31, 2020

Study information

Verified date May 2021
Source Second Affiliated Hospital, School of Medicine, Zhejiang University
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

Background: Acetabular reconstruction in situ after extensive pelvic resection is technically challenging because the significant loss of bone stock and bony landmarks. The aim of the present study was to investigate the feasibility of an individualized navigation template for acetabular reconstruction following pelvic malignancy resection. Methods: This retrospective cohort study included patients who underwent type II or II+III pelvic tumor resection and reconstruction using a modular hemipelvic prosthesis. In the template-guided group (n = 10), a navigation template was designed and applied to assist acetabular reconstruction. In the traditional operation group (n = 14), the patients underwent the same surgery but without the navigation template. To compare the displacement of the hip rotation center before and after surgery between the two groups, an innovative method based on pelvic CT was developed and a validation group of cases was used to assess the effectiveness of this measurement approach. In the validation group (n = 12), patients undergoing periacetabular puncture or curettage without hip joint reconstruction were included. The displacements for the validation group were calculated and compared with 0 cm, the theoretical value. Subsequently, the displacements between the template-guided group and the traditional operation group were compared.


Recruitment information / eligibility

Status Completed
Enrollment 36
Est. completion date July 31, 2020
Est. primary completion date July 31, 2020
Accepts healthy volunteers No
Gender All
Age group N/A and older
Eligibility Inclusion Criteria: 1. All the patients diagnosed with a pelvic tumor; 2. Underwent limb salvage surgery following type II or II+III pelvic resection; 3. Acetabulum reconstruction using a modular, titanium hemipelvic prosthesis. Exclusion Criteria: 1. A lack of postoperative CT images; 2. Having undergone revision surgery or noninitial/primary resection; 3. unable to calculate the hip displacement by the specific measurement method we proposed.

Study Design


Related Conditions & MeSH terms


Intervention

Device:
Acetabular reconstruction after tumor resection.
In the template-guided group (n = 10), a navigation template was designed and applied to assist acetabular reconstruction. In the traditional operation group (n = 14), the patients underwent the same surgery but without the navigation template. To compare the displacement of the hip rotation center before and after surgery between the two groups, an innovative method based on pelvic CT was developed and a validation group of cases was used to assess the effectiveness of this measurement approach. In the validation group (n = 12), patients undergoing periacetabular puncture or curettage without hip joint reconstruction were included. The displacements for the validation group were calculated and compared with 0 cm, the theoretical value. Subsequently, the displacements between the template-guided group and the traditional operation group were compared.

Locations

Country Name City State
n/a

Sponsors (1)

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

Outcome

Type Measure Description Time frame Safety issue
Primary Compare the change of acetabular rotation center before and after surgery between the template-guided group and the traditional operation group. Compare the change of acetabular rotation center (the displacement displayed in centimeters) before and after surgery between the template-guided group and the traditional operation group based on preoperative and postoperative CT images. "through study completion, an average of 2 years"
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