NCT03825029

Pillow Use During Total Hip Arthroplasty

Can the Difference Between the Operative and Radiographic Cup Inclination Angle Be Reduced by Applying a Pillow Between the Patient's Legs in Total Hip Arthroplasty Performed In The Lateral Decubitus Position?

• Status: Unknown
• Phase: N/A
• Study type: Interventional
• Enrollment: 40 (estimated)
• Sponsor: Ottawa Hospital Research Institute · Academic / Other
• Sex: All
• Age: 18 Years
• Healthy volunteers: Not accepted

Summary

The purpose of this study is to find out whether placing a pillow between the legs during hip surgery will result in a better aligned hip replacement.

Detailed description

During hip replacement surgery the cup is placed on specific planned angles. Cup placement has an effect on the patients' pain-free range of movement, dislocation rates and satisfaction. However, the angles of the cup orientation (i.e. the tilt and rotation), which are preoperatively planned and postoperatively measured on radiographs, have a high variability even when an experienced surgeon is performing the surgery. One of the reasons this occurs is because the operated leg can move the pelvis to a different position in the time between set-up and actual implantation which may lead to the cup being placed in a non-optimal position. This study aims to see if the difference between planned and achieved cup angles and pelvic movement can be lessened by putting a pillow in between the legs to keep it in a stable horizontal position.

Conditions

• Arthroplasty, Replacement, Hip
• Hip Replacement, Total

Interventions

Type	Name	Description
PROCEDURE	Pillow	A pillow to lessen the angle differences between hips so that the acetabular component can be placed in an optimal position.

Timeline

• Start date: 2019-07-22
• Primary completion: 2021-06-01
• Completion: 2021-09-01
• First posted: 2019-01-31
• Last updated: 2020-08-12

Locations

1 site across 1 country: Canada