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Clinical Trial Details — Status: Enrolling by invitation

Administrative data

NCT number NCT04505020
Other study ID # 3DPRINT
Secondary ID
Status Enrolling by invitation
Phase N/A
First received
Last updated
Start date January 1, 2021
Est. completion date December 31, 2024

Study information

Verified date September 2023
Source Nova Scotia Health Authority
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

This is a randomized controlled trial (RCT) to evaluate the introduction of a 3D printed model into the pre and intra-operative planning for arthroscopic femoroacetabular impingement (FAI) surgery. The RCT will look to place patients into one of two treatment groups: 1) conventional preoperative imaging (X-ray, CT, and MRI) only and 2) those that have had a 3D printed model created in addition to the conventional imaging.


Description:

In this study, we investigate the use of 3D models during pre and intra-operative planning could improve the success of hip arthroscopy and reduce the incidence of revision cases. By adding an adjunct to the common suite of pre-operative imaging modalities (X-ray, MRI and CT), we can change the surgeon's understanding of each patient's individual morphology with a tactile physical model. This study will compare the success of hip arthroscopy in patients with or without 3D printed models (in addition to traditional pre-operative imaging). This will be a single-center, blinded observer, randomized controlled trial of 80 patients performed at the Halifax Infirmary, Queen Elizabeth II Health Sciences Center in Halifax, Nova Scotia. Patients with cam-type FAI involved in the study will be approached by the surgeon, Dr. Ivan Wong, or a delegate regarding the study during a pre-operative visit. Following a detailed discussion of the risks/benefits/alternatives of this study, the patient will be provided with a copy of the informed consent to review, if they demonstrate an interest in the study. If the patient wishes to be enrolled in the study, the research team will obtain patient consent for the study according to the Division of Orthopaedic Surgery and Nova Scotia Health Authority (NSHA) institutional protocols. In the pre-operative period, there will be no additional time requirements for the participant, except for the informed consent process for the study. Routine X-ray radiographs, as well as a pre-operative MRI and CT scan, will be obtained for all subjects undergoing FAI surgery. The participants will not be exposed to any additional radiation. Subjects will complete a structured clinical examination conducted by a sports medicine fellowship-trained orthopaedic consultant. The patient will also complete pre-operative questionnaires. Patients that have consented to the study will be randomized into two groups with a 50% chance of being in either group. Randomization will be done with a computer random number generator. Both groups will undergo routine pre-operative imaging but one group will also have a 3D print made from the 3D CT reconstruction. All patient groups will undergo hip arthroscopy for the treatment of their FAI.


Recruitment information / eligibility

Status Enrolling by invitation
Enrollment 80
Est. completion date December 31, 2024
Est. primary completion date August 31, 2024
Accepts healthy volunteers No
Gender All
Age group 18 Years and older
Eligibility Inclusion Criteria: - Radiological proven diagnosis of cam-type femoroacetabular impingement (FAI) Exclusion Criteria: - Patients with advanced arthritis (Tonnis Grade III or Kellgren-Lawrence Grade III or IV or evidence of less than 2 mm of joint space, as determined by conventional radiographs.) - Patients with 1cm2 (or greater) of cartilage delamination in the hip - Patients with type III or IV heterotopic ossification - Patients with avascular necrosis - Patients who are unable to provide informed consent - Patients who are undergoing revision hip arthroscopy - Patients who are pregnant - Patients who have the presence of local or systemic infection - Patients with an inability to cooperate with and/or comprehend post-operative instructions - Patients with nonvascular surgical sites (MRI proven) - Patients with cancer

Study Design


Intervention

Other:
3D Print + Conventional imaging
This group will have a 3D reconstruction of their hip printed using a 3D printer so that the PI can use it in their pre and intra-operative planning along with traditional imaging.
Conventional imaging
This group will have CT, MRI and X-Ray imaging completed so that the PI can use it in their pre and intra-operative planning.

Locations

Country Name City State
Canada 5955 Veterans' Memorial Lane Room 2106, VMB Halifax Nova Scotia

Sponsors (1)

Lead Sponsor Collaborator
Nova Scotia Health Authority

Country where clinical trial is conducted

Canada, 

Outcome

Type Measure Description Time frame Safety issue
Other The number of times conventional imaging and 3D prints are referenced intra-operatively. Another secondary outcome is the number of times each of the following are referenced intra-operatively: X-Rays, MRI, MRA, CT, CT with 3D reconstruction and 3D model of patient's hip. Additionally the number of X-Ray images taken intra-operatively will be recorded. During surgery only
Primary Measure of CAM resection Our primary outcome for this study is the resection of cam impingement according to alpha-angle on post-operative anterior-posterior (AP) and frog leg X-ray views. Change in Pre-op measurements compared to 2 weeks post-operatively
Primary Measure of CAM resection Our primary outcome for this study is the resection of cam impingement according to alpha-angle on post-operative anterior-posterior (AP) and frog leg X-ray views. Change in Pre-op measurements compared to 6 months post-operatively
Primary Measure of CAM resection Our primary outcome for this study is the resection of cam impingement according to alpha-angle on post-operative anterior-posterior (AP) and frog leg X-ray views. Change in Pre-op measurements compared to 24 months post-operatively
Secondary Differences in post-operative patient reported outcomes: iHOT-33 The secondary outcome is the differences in post-operative patient reported outcomes for the international hip outcome tool (iHOT-33) when compared to a pre-operative baseline. (Scores for the International hip outcome tool range from 0-100 where higher values represent better outcomes) Change in outcomes 24 months post operatively compared to Pre-operatively
Secondary Differences in post-operative patient reported outcomes: NAHS The secondary outcome is the differences in post-operative patient reported outcomes for the Non-arthritic Hip Score (NAHS) when compared to a pre-operative baseline. (Scores for the Non-arthritic Hip Score range from 0-80 where higher values represent better outcomes). Change in outcomes 24 months post operatively compared to Pre-operatively
Secondary Differences in post-operative patient reported outcomes: EQ5D The secondary outcome is the differences in post-operative patient reported outcomes for the European Quality of Life Questionnaire (EQ-5D) when compared to a pre-operative baseline. (Scores for EQ-5D range from 1-5 in 5 categories where lower values represent better outcomes in each category). Change in outcomes 24 months post operatively compared to Pre-operatively
Secondary Differences in post-operative patient reported outcomes: EQ5D-VAS The secondary outcome is the differences in post-operative patient reported outcomes for the European Quality of Life Questionnaire-Visual Analog Scale (EQ-5D-VAS) when compared to a pre-operative baseline. (Scores for EQ-5D-VAS range from 0-100 where higher values represent better outcomes). Change in outcomes 24 months post operatively compared to Pre-operatively
Secondary Differences in post-operative patient reported outcomes: VR-12 The secondary outcome is the differences in post-operative patient reported outcomes for the Veteran's RAND 12 Item Health Survey (VR-12) when compared to a pre-operative baseline. (Scores for VR-12 range from 0-100 where higher values represent better outcomes). Change in outcomes 24 months post operatively compared to Pre-operatively
Secondary Differences in post-operative patient reported outcomes: HOS-Usual Activities The secondary outcome is the differences in post-operative patient reported outcomes for the Hip Outcome Score for usual activities (HOS-UA) when compared to a pre-operative baseline. (Scores for HOS range from 0-68 where higher values represent better outcomes). Change in outcomes 24 months post operatively compared to Pre-operatively
Secondary Differences in post-operative patient reported outcomes: HOS-Sport The secondary outcome is the differences in post-operative patient reported outcomes for the Hip Outcome Score for sports (HOS-S) when compared to a pre-operative baseline. (Scores for HOS range from 0-30 where higher values represent better outcomes). Change in outcomes 24 months post operatively compared to Pre-operatively
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