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The specific aim of this proposed study is to conduct a prospective RSA clinical study at Massachusetts General Hospital involving 50 patients receiving primary total hip replacements. All patients will receive the vitamin E treated polyethylene acetabular inserts. Short-term femoral head penetration and long-term steady state wear of the polyethylene will be measured using both RSA and Martell analysis techniques. Stability of the acetabular and femoral components will be measured in all patients using RSA analysis. The stability of the cemented femoral stems will be compared to the stability of the cementless femoral components as well as to historic data in the literature. In addition, all patients will complete a self-administered questionnaire to assess the clinical outcome of the surgery and patient satisfaction.
Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Treatment
Osteoarthritis of Hip
Massachusetts General Hospital
Massachusetts General Hospital
Published on BioPortfolio: 2015-05-03T15:25:44-0400
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To compare the lifetime risk of total hip replacement surgery (THR) for osteoarthritis (OA) between countries, and over time.
To investigate the risk and determinants of knee replacement (KR) in subjects with or at risk of osteoarthritis (OA) and a history of arthroscopy.
To estimate the lifetime risk of knee osteoarthritis (OA) and total knee replacement (TKR) in persons sustaining ACL tear by age 25.
To evaluate validity and responsiveness of the Knee injury and Osteoarthritis Outcome Score (KOOS) in relation to other patient-reported outcome measures before and after total knee replacement (TKR).
Therapeutic replacement or supplementation of defective or missing enzymes to alleviate the effects of the enzyme deficiency (e.g., GLUCOSYLCERAMIDASE replacement for GAUCHER DISEASE).
Partial or total replacement of a joint.
Replacement of the hip joint.
Partial or total replacement of one or more FINGERS, or a FINGER JOINT.
Organic compounds containing the -CO-NH2 radical. Amides are derived from acids by replacement of -OH by -NH2 or from ammonia by the replacement of H by an acyl group. (From Grant & Hackh's Chemical Dictionary, 5th ed)