Postoperative Hip Precautions After Total Hip Arthroplasty Via the Posterior Approach: A Prospective Randomized Trial

Not Applicable

Recruiting

• Conditions: Osteoarthritis; Degenerative Joint Disease
• Interventions: Other: Hip Precautions; Other: No Hip Precautions

• Registration Number: NCT02686528
• Lead Sponsor: Rush University Medical Center

Brief Summary

The purpose of this study is to determine if hip precautions, which are instructions that limit functional use of a hip replacement after surgery, affect the rate of dislocation in the first six weeks after primary total hip replacement surgery. The impact of hip precautions on a patient's return to activities of daily living and overall patient satisfaction will also be investigated. The overall cost effectiveness of hip precautions will be determined.

Detailed Description

This study examines the necessity of postoperative hip precautions in patients after primary total hip arthroplasty via the posterior approach. Precautions are instructions that limit the functional use of the hip and are given for the first six weeks after surgery, with the goal of preventing an instability event resulting in dislocation. The hip precautions that will be investigated in this study are: no hip flexion past 90º, no crossing the legs, and no twisting at the waist.

Study Timeline

• Study Start: 2016-01
• Study First Submitted: 2016-01-11
• Study First Submitted QC: 2016-02-15
• Study First Posted: 2016-02-19
• Status Verified: 2025-04
• Last Update Submitted: 2025-04-25
• Last Update Posted: 2025-04-27
• Primary Completion: 2025-07-01
• Study Completion: 2025-10-01

Recruitment & Eligibility

• Status: RECRUITING
• Sex: All
• Target Recruitment: 1000

Inclusion Criteria

• Patients undergoing a primary total hip arthroplasty via the posterior approach by participating attending surgeons at this institution
• Index diagnosis of noninflammatory arthritis
• Patients must be able to understand and comply with study procedures

Exclusion Criteria

• Allergy or intolerance to the study materials
• History of previous surgeries on the affected joint other than arthroscopy; i.e. revision THA or open surgeries

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Hip Precautions	Hip Precautions	Patients will receive the following hip precautions: no hip flexion past 90º, no crossing the legs, and no twisting at the waist for the first six weeks after surgery.
No Hip Precautions	No Hip Precautions	Patients will not be prescribed hip precautions in the first 6 weeks after surgery. The hip precautions that will no longer be prescribed are: no hip flexion past 90º, no crossing the legs, and no twisting at the waist.

Primary Outcome Measures

Name	Time	Method
Dislocation	6 weeks after surgery	Incidence of dislocation of the total hip arthroplasty will be recorded for both treatment groups.

Secondary Outcome Measures

Name	Time	Method
Activities of Daily Living	1 year after surgery	The time from surgery to return to activities of daily living will be measured for both treatment groups. This includes return to activities of bathing, return to work, and return to driving.

Trial Locations

Locations (1)

Rush University Medical Center; 🇺🇸 Chicago, Illinois, United States