NCT05393778

Measured vs Navigated Techniques in Total Hip Arthroplasty

Accuracy in aChieving Optimum reconstrUction: Measured- vs. Navigation- Techniques in Hip Arthroplasty

• Status: Unknown
• Phase: N/A
• Study type: Interventional
• Enrollment: 100 (estimated)
• Sponsor: Ottawa Hospital Research Institute · Academic / Other
• Sex: All
• Age: —
• Healthy volunteers: Not accepted

Summary

Accurate reconstruction of the native hip parameters following total hip arthroplasty is associated with improved outcome. In order to improve ability for optimum reconstruction, 3-D templating software can be utilized that provide detailed information regarding native anatomy. In order to achieve reconstruction within acceptable parameters as per pre-operative plan, some surgeons propose the use of intra-operative devices that measure component orientation and joint reconstruction ("Measured-THA"), whilst others propose the use of navigation tools ("Navigation-THA). Both techniques have shown superiority compared to the most commonly used "freehand" technique, but no prior study has assessed for superiority between these 2 techniques. Furthermore, to-date assessment of post-operative reconstruction has not been tested in detail as post-THA assessments are based on radiographs which provide incomplete, 2-dimensional, assessments and are lacking the important axial plane reconstruction parameters. The aims of this prospective, randomized, trial are to 1. appraise the ability to achieve the pre-operative 3-D plan (as per FormusLab) through a comparison of pre-op plan to post-operative reconstruction; 2. compare ability to accurately reconstruct hip following THA between "navigated-" (IntelliJoint®) and "measured-" techniques; and in doing so it will also 3. assess the accuracy of the intra-operative assessments of reconstruction through a comparison of objective (i.e. measured) intra-operative assessments with the post-operative reconstructions achieved.

Conditions

• Osteoarthritis, Hip

Interventions

Type	Name	Description
PROCEDURE	Measured Technique	Manual intra-operative checks and tools are used to aid in component placement during surgery.
PROCEDURE	Navigated Technique	IntelliJoint® navigation is an imageless-based navigation system that utilizes a miniature infrared camera and microelectronics to measure hip center of rotation, acetabular inclination and version, leg length, and offset. The device provides accurate real-time data on implant positioning to aid in placement of the components during surgery.

Timeline

• Start date: 2022-07-01
• Primary completion: 2024-07-01
• Completion: 2024-09-01
• First posted: 2022-05-26
• Last updated: 2022-05-26