Osteoarthritis of Hip
Conditions
Keywords
Stress shielding, Bone mineral density, stemless femoral component
Brief summary
The purpose of this study is to determine if there is a difference in stress shielding and bone resorption of the proximal femur in two anatomical stem total hip designs.
Detailed description
Stress shielding related bone resorption in the proximal femur after total hip arthroplasty continues to be a problem. The purpose of this prospective, randomized study was to evaluate which of the two anatomical stem designs achieved a more physiological load transfer by assessing bone mineral changes in the proximal femur after stem implantation.
Interventions
DEVICEStemless femoral component
Total hip femoral component anatomically designed for a proximal fit without a stem
DEVICEIPS, Depuy cementless femoral stem
Anatomical proximal fitted cementless stemmed femoral component
Sponsors
Ewha Womans University
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
TRIPLE (Subject, Investigator, Outcomes Assessor)
Eligibility
Sex/Gender
ALL
Healthy volunteers
No
Inclusion criteria
* Osteoarthritis of hip joint requiring total hip arthroplasty
Exclusion criteria
* Neurologic disorders affecting motor function of lower extremity * foot and ankle disorders limiting ambulation of the patient * Patients with bone metabolic disorders other than osteoporosis which prevents normal bone metabolism * Multi-systemic inflammatory arthritis which debilitates patients other than hip joint.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Bone mineral density of surrounding proximal femur according to Gruen zones | At least 2years after surgery |
Secondary
| Measure | Time frame |
|---|---|
| Harris hip score | 2 years |
Countries
South Korea
Outcome results
None listed