About this trial
The aim of the study is to monitor the performance of the Signature Orthopaedics Spartan Stem, World Acetabular Cup and World Liner as a post-market vigilance and continuous improvement efforts.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
patient requires unilateral primary total hip arthroplasty due to non-inflammatory degenerative joint disease (e.g., osteoarthritis, traumatic arthritis, avascular necrosis, dysplasia/DDH)
patient must be a candidate for use of the products studied, as determined jointly by the surgeon and patient.
male and non-pregnant female patients aged 18-75
patients who understand the conditions of the clinical evaluation and are willing to participate for the length of the prescribed follow-up.
Disqualifiers
patient has active infection or sepsis(treated or untreated) enough to compromise implant stability or postoperative recovery
patient is a female of child-bearing age and not taking and not taking contraceptive pills
patient has inadequate bone stock to support the device (e.g. severe osteopenia, family history of severe osteoporosis or osteopenia)
patient has a known or suspected metal sensitivity
Trial population
Patients of the Cleveland Clinic
Trial design
Cohort
Prospective
Treatments tested in this trial
Spartan Stem, World Acetabular Cup and World Liner
DeviceThe Spartan Stem is a wedge-shaped fit and fill design stem with Titanium Plasma Spray(TPS) and Hydroxyapatite (HA) coating. The World Acetabular cup is Porous coated and mated with cross-linked polyethylene World Liner
Treatment groups
Trial outcomes
Primary outcomes
Spartan Stem, World Acetabular Cup and World Liner Survival Rate
The implant survival rate is based on removal of the device for any reason as determined following the Kaplan-Meier method.
Secondary outcomes
Oxford Hip Score (OHS)
The OHS is a patient reported outcome measure (PROM) used to quantify patient satisfaction with the treatment. It consists of 12 questions scored 1 to 5 by the patient.
Other outcomes
Radiographic Analysis
Post-operative radiographs of the implant are analysed to identify locations and sizes of radiolucency, indicative of poor fixation. The size, location and progression of radiolucency is monitored. Smaller, non-progressive radiolucencies are preferred.
Sponsors and contacts
Click on the lead sponsor to view all of their trials.
Signature Orthopaedics
Lead sponsor
The Cleveland Clinic
Collaborator