Periprosthetic bone mineral density (BMD) around two different stems in total hip arthroplasty

Completed

• Conditions: Osteoarthritis of the hip; Musculoskeletal Diseases; Osteoarthritis

• Registration Number: ISRCTN54967983
• Lead Sponsor: German Research Council (Deutsche Forschungsgemeinschaft [DFG]) (Germany)

Brief Summary

Not available

Detailed Description

Not available

Study Timeline

• Study Start: 2010-08-18
• Last Update Posted: 13 January 2015

Recruitment & Eligibility

• Status: Completed
• Sex: All
• Target Recruitment: 50

Inclusion Criteria

1. Indication for unilateral implantation of the Bicontact stem or the Metha short stem due to osteoarthritis of the hip
2. Patients' ages between 35 and 70 years of either sex
3. Written informed consent

Exclusion Criteria

1. Manifestly overweight (body mass index [BMI] greater than 35 kg/m^2)
2. History of previous surgeries on the same hip
3. Femoral fractures
4. Metabolic bone diseases
5. Use of steroids or other drugs affecting bone metabolism
6. Intraoperative cracks
7. Severe osteoarthritis of the contralateral hip
8. Received total hip arthroplasty (THA) on the contralateral hip during the study period
9. Patients in whom an event leading to restricted weight bearing on the ipsi- or contralateral hip occurred

Study & Design

• Study Type: Observational
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
BMD (g/cm^2) in Gruen Zones 1 - 7 per DEXA, measured 1 day pre-operatively, and 1 week, 6 months, 1 year, 2 years, 3 years and 4 years post-operatively.

Secondary Outcome Measures

Name	Time	Method
Harris Hip Score per questionaire and clinical examination, measured 1 day pre-operatively, and 1 week, 6 months, 1 year, 2 years, 3 years and 4 years post-operatively.