Bone Mineral Changes Around Stemless and Stemmed Cementless Femoral Components

Ewha Womans University120 enrolled

Overview

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.

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.

Study Type

INTERVENTIONAL

Allocation

RANDOMIZED

Purpose

TREATMENT

Masking

TRIPLE

Enrollment

120

Conditions

Osteoarthritis of Hip

Interventions

Stemless femoral componentDEVICE

Total hip femoral component anatomically designed for a proximal fit without a stem

IPS, Depuy cementless femoral stemDEVICE

Anatomical proximal fitted cementless stemmed femoral component

Eligibility

Sex: ALL

Medical Language ↔ Plain English

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.

Locations (1)

Ewha Womans University Mokdong Hospital

Seoul, South Korea

Outcomes

Primary Outcomes

Bone mineral density of surrounding proximal femur according to Gruen zones

Time frame: At least 2years after surgery

Secondary Outcomes

Harris hip score

Time frame: 2 years

Data from ClinicalTrials.gov

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