Mobility Assessment of Patients With Total Hip Arthroplasty

Not Applicable

Active, not recruiting

• Conditions: Osteoarthritis; Arthroplasty; Hip Replacement
• Interventions: Procedure: Motion analysis

• Registration Number: NCT00664508
• Lead Sponsor: Ottawa Hospital Research Institute

Brief Summary

The purpose of this study is to describe the 3D joint biomechanics of the lower extremities of patients having had a total hip replacement or hip resurfacing surgery as compared to a healthy age and weight matched control group during level walking, stair ascent and descent, and entering and exiting the front seat of a car.

Detailed Description

Much research has shown that patients are generally satisfied with pain relief in the months and years following a total hip replacement (THR) or hip resurfacing procedure. However, many express dissatisfaction with their ability to perform daily activities, a reduced walking ability and long-term lower extremity muscle weakness. Given the general lack of knowledge surrounding joint motion of the lower extremities in the THR population, there is a need to characterize the joint mechanics of people having undergone THR, so that interventions and rehabilitation strategies can be designed to reduce post-operative complications and improve mobility.

Study Timeline

• Study Start: 2007-11
• Study First Submitted: 2008-04-21
• Study First Submitted QC: 2008-04-21
• Study First Posted: 2008-04-23
• Status Verified: 2024-01
• Last Update Submitted: 2024-01-02
• Last Update Posted: 2024-01-05
• Primary Completion: 2024-04-28
• Study Completion: 2024-04-28

Recruitment & Eligibility

• Status: ACTIVE_NOT_RECRUITING
• Sex: All
• Target Recruitment: 30

Inclusion Criteria

• 15 patients between the ages of 50 and 75 yrs having undergone a primary total hip replacement or hip resurfacing within 6 to 18 months of the study will participate, as well as an equal number of age, sex, height and weight matched healthy control participants.

Exclusion Criteria

• Potential participants for the control group will be asked if they have had previous lower limb ailments or surgery, and if they have they will be excluded. Moreover, the THR participants cannot have had secondary hip replacement due to infection, revision surgery, or a concomitant surgical procedure (i.e., graft). Participants from both groups cannot have had any medical conditions which could affect physical movement such as a stroke.

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Lateral approach	Motion analysis	Lateral approach Intervention: Motion Analysis. Standard AP/Lateral x-rays of the hips, functional assessment questionnaires and 3D joint mechanic assessment at the Biomechanics Laboratory
Anterior approach	Motion analysis	Anterior approach Intervention: Motion Analysis. Standard AP/Lateral x-rays of the hips, functional assessment questionnaires and 3D joint mechanic assessment at the Biomechanics Laboratory
Posterior approach	Motion analysis	Posterior approach Intervention: Motion Analysis. Standard AP/Lateral x-rays of the hips, functional assessment questionnaires and 3D joint mechanic assessment at the Biomechanics Laboratory

Primary Outcome Measures

Name	Time	Method
Joint mechanics of people having undergone total hip replacement	6-18 months post surgery	3D joint mechanics of the lower extremities during level walking, stair ascent and descent, and entering and exiting the front seat of the car

Trial Locations

Locations (1)

OHRI; 🇨🇦 Ottawa, Ontario, Canada