DEXA Bone Density Analysis of the CoreHip® Prosthesis System

DEXA Bone Density Analysis to Analyze the Loading Concept of the CoreHip® Prosthesis

The goal of this interventional post-market follow-up study is to evaluate radiological changes in the diaphyseal bone density (Gruen Zones 3 and 4) within 24 months postoperative in patients treated with CoreHip® primary cementless stem. The DEXA bone density analysis is used.

Additional diagnostic examination: DEXA-Analysis. A DEXA scan is an imaging test that measures bone density (strength). The results can provide helpful details about risk for osteoporosis (bone loss) and fractures. Furthermore we would like to find out more about stress shielding processes around our prosthesis.

Inclusion Criteria:

• Unilateral hip osteoarthritis
• Indication for CoreHip Standard hip stem according to preoperative planning
• Written Informed Consent
• Age 35-85 years
• According to the assessment of the study doctor, the patient is therapy compliant and able to attend the follow-up visits

Exclusion Criteria:

• Femoral neck fractures
• Pregnancy
• BMI > 35
• History of femoral fracture or previous surgery on the same hip
• Metabolic bone disease, use of steroids or other drugs affecting bone metabolism
• Intraoperative bone cracks
• Severe osteoarthritis of the contralateral hip
• THA of the contralateral side or other event leading to restricted weight bearing during the study period