Mobility Assessment of Patients With Total Hip Arthroplasty
Mobility Assessment of Patients With Total Hip Arthroplasty
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.
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.
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.