Benefit of Orthopedic Navigation in the ARThroplasty of the Hip (BONARTH)

Aesculap

Status and phase

Completed

Phase 4

Conditions

Osteoarthritis, Hip

Femur Head Necrosis

Arthritis, Rheumatoid

Treatments

Procedure: Navigated Intervention

Procedure: Manual Intervention

Study type

Interventional

Funder types

Industry

Identifiers

NCT01496300

AAG-G-H-1103

Details and patient eligibility

About

This study was initiated to investigate the impact of the computer based image free navigation on the precision of the cup implantation. The implantation of the acetabular component (cup) is known to be a critical step in hip endoprosthetics. The cup position influences significantly the function, the absence of pain and the longevity of the artificial hip joint. The image free navigation system OrthoPilot is used to control the positioning of the cup during surgery.

Enrollment

89 patients

Sex

All

Ages

50+ years old

Volunteers

No Healthy Volunteers

Inclusion criteria

Indication for primary cementless total hip endoprosthesis implantation with Bicontact stem and Plasmacup
Diagnoses: primary or secondary coxarthrosis, rheumatoid arthritis, femoral head necrosis
Age ≥ 50 Years
ASA score <4
Patient signed the informed consent

Exclusion criteria

Excessive damage to the hip joint (e.g. dysplasia)
Severe deformities of the pelvis, femoral bone or knee
Unfeasibility of landmark palpation (e.g. due to adiposity)
Acute or chronic infection
Pregnancy
Patients not available for follow-up-examination at the center
Patients exceeding 10 mSv effective radiation dose because of previous scientific or clinical exposition during the past 10 years