Efficacy of the CLP® Hip - Retrospective

Post-Market Study: The Efficacy of the CLP® Hip

Status

Terminated

Phases

Unknown

Study type

Observational

Source

ClinicalTrials.gov

Registry ID

NCT00764842

Enrollment

Registered

2008-10-02

Start date

2008-01-31

Completion date

2011-02-28

Last updated

2011-02-09

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Avascular Necrosis, Osteoarthritis, Rheumatoid Arthritis

Brief summary

The purpose of this study is to evaluate the survivorship and efficacy of the Encore CLP® Hip stem in a group of no more than 200 patients from whom data has already been collected.

Interventions

DEVICEEncore CLP® Hip stem

Subjects with osteoarthritis, rheumatoid arthritis or avascular necrosis of the natural femoral head who have received the Encore CLP® Hip stem and are willing to participate in the study.

Study design

Observational model

COHORT

Time perspective

RETROSPECTIVE

Eligibility

Sex/Gender

ALL

Age

18 Years to No maximum

Healthy volunteers

Inclusion criteria

1. Patients must be 18 years of age or older. 2. Noninflammatory degenerative joint disease including * Osteoarthritis of the natural femoral head * Avascular necrosis of the natural femoral head * Rheumatoid arthritis 3. Correction of functional deformities 4. Femoral fracture 5. Patients must be able and willing to complete all study-related visits.

Exclusion criteria

1. Anyone who is under 18 years of age 2. Infection or sepsis 3. Insufficient bone quality which may affect the stability of the implant 4. Muscular, neurological or vascular deficiencies, which compromise the affected extremity 5. Skeletally immature patients and cases where there is a loss of abductor musculature, poor bone stock, poor skin coverage around hip joint which would make the procedure unjustifiable 6. Osteomyelitis 7. Rapid joint destruction or bone absorption apparent on roentgenogram 8. Pathological conditions of the acetabulum which would prevent achieving proper range of motion, appropriate head stability, and/or a well-seated and supported smooth articulation of the head within the acetabulum 9. Alcoholism or other addictions 10. Materials sensitivity 11. Loss of ligamentous structures 12. High levels of physical activity (e.g., competitive sports, heavy physical labor) 13. Pregnancy

Design outcomes

Primary

Measure	Time frame
The survivorship and efficacy of the Encore CLP® Hip stem	2 year

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026