ATX Register Accolade Stem & Trident/Tritanium Cup With X3 Insert

Inclusion Criteria

• Male and non-pregnant female patients between 18-75 years of age.
• Patients requiring uncemented primary Total Hip Arthroplasty (THA), suitable for the use of the Accolade stem and Trident/Tritanium cup.
• Patients with a diagnosis of osteoarthritis (OA).
• Patients who understand the conditions of the study and are willing and able to comply with the post-operative scheduled clinical and radiographic evaluations and the prescribed rehabilitation.
• Patients who signed the Ethics Committee approved Informed Consent Form prior to surgery.

Exclusion Criteria

• Patients who require revision of a previously implanted hip prosthesis.
• Patients who had a THA on contralateral side within the last 6 months.
• Patients who had a THA on contralateral side more than 6 months ago and the rehabilitation period outcome was considered unsatisfactory or not good (Harris Hip Score < 85).
• Patients who will need lower limb joint replacement for another joint within one year.
• Patients requiring bilateral hip replacement.
• Patients who have had a prior procedure of acetabular osteotomy.
• Patients with acute femoral fractures
• Obese patients where obesity is severe enough to affect subject's ability to perform activities of daily living (body mass index, kg/m2: BMI ≥ 35).
• Patients with active or suspected infection.
• Patients with malignancy - active malignancy.
• Patients with severe osteoporosis, rheumatoid arthritis (RA), Paget's disease or renal osteodystrophy.
• Patients immunologically suppressed, or receiving steroids in excess of physiologic dose requirements.
• The patient has a neuromuscular or neurosensory deficit which would limit the ability to assess the performance of the device or the patient has a neurological deficit which interferes with the patient's ability to limit weight bearing or places an extreme load on the implant during the healing period.
• Female patients planning a pregnancy during the course of the study.
• Patients with systemic or metabolic disorders leading to progressive bone deterioration.
• Patients, who as judged by the surgeon, are mentally incompetent or are unlikely to be compliant with the prescribed post-operative routine and follow-up evaluation schedule.
• Patients with other severe concurrent joint involvements, which can affect their outcome.
• Patients with other concurrent illnesses, which are likely to affect their outcome such as sickle cell anaemia, systemic lupus erythematosus or renal disease requiring dialysis.
• Patient with a known sensitivity to device materials.
• Patients under the protection of law (e.g. guardianship).