Compaction Femur Preparation for Cementless Total Hip Arthroplasty (THA) Unilateral

Northern Orthopaedic Division, Denmark

Status

Unknown

Conditions

Coxarthrosis

Treatments

Procedure: Bone preparation technique: conventional technique

Procedure: Bone preparation technique: compaction

Study type

Interventional

Funder types

Other

Identifiers

NCT00318396

ON-04-002a-SKO

Details and patient eligibility

About

This is a prospective, randomized study comparing two different bone preparation techniques for insertion of a hydroxylapatite (HA) coated titanium cementless femoral stem. Patients who receive a unilateral total hip replacement are randomized to either conventional broaching or compaction.

Hypothesis: Compaction results in significantly less stem migration [evaluated by radiostereometric analysis (RSA)], less peri-prosthetic bone mineral density (BMD) loss [evaluated by dual energy x-ray absorptiometry (DEXA)], and a higher Harris hip score after two years.

Enrollment

26 patients

Sex

All

Ages

18 to 70 years old

Volunteers

No Healthy Volunteers

Inclusion criteria

Patients with primary arthritis in the hip
Patients with sufficient bone density to allow uncemented implantation of a femoral component
Informed patient consent in writing

Exclusion criteria

Patients with neuromuscular or vascular disease in the affected leg
Patients found upon operation to be unsuited for uncemented acetabulum component
Patients who regularly take non-steroidal anti-inflammatory drugs (NSAIDs) and cannot interrupt intake for the postoperative phase of the study
Patients with fracture sequelae
Female patients of childbearing capacity
Hip joint dysplasia
Sequelae to previous hip joint disorder in childhood