Polarstem Cementless Hip Stem

NCT ID: NCT02648152

Last Updated: 2021-12-20

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

225 participants

Study Classification

OBSERVATIONAL

Study Start Date

2009-03-31

Study Completion Date

2020-11-30

Brief Summary

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Multicenter observational study to validate that the POLARSTEM™ is a state-of-the-art implant in terms of radiographic, clinical performance and long-term survivorship.

Detailed Description

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The goal of this multicenter clinical observation is to validate short-, mid-, and long-term outcome (efficacy and safety) of the POLARSTEM™.

Efficacy evaluations:

* Evaluation of function, range of motion (ROM) and pain as assessed by Harris Hip Score, Hip disability and osteoarthritis outcome score (HOOS) \[7, 8\], an extension of the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC).
* Radiographic changes as defined by radiolucent lines, osteolysis, hypo- and hypertrophy, implant loosening or migration

Safety evaluations:

* Intra- and perioperative device-related adverse events (AE) and complications up to discharge
* Postoperative AE up to 10 years

Conditions

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Osteoarthritis

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Interventions

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Osteoarthritis

Total Hip Arthroplasty

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

* Patient has no general medical contraindication to surgery
* Informed consent to participate in the MCO signed by the patient
* Routine radiographic assessment is possible
* Patient is likely to comply with study follow-up requirements
* Primary total hip replacement (THR) to the affected side, unilateral or bilateral

Exclusion Criteria

* Previously failed endoprosthesis and /or THR components in relevant hip
* History of infection in the affected joint; systemic infections
* Grossly insufficient femoral or acetabular bone stock in the involved hip
* Charcot joint disease or other severe neurosensory deficit
* Severe spinal disorders
* Age of patient at date of surgery \> 75 years
* High comorbidity
* Cemented acetabular cup
Minimum Eligible Age

18 Years

Maximum Eligible Age

75 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Smith & Nephew, Inc.

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Turgay Efe, Dr.med.

Role: PRINCIPAL_INVESTIGATOR

Philipps University Marburg

Locations

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St. Elisabeth Hospital, Orthopedics and Rheumatology

Bochum, , Germany

Site Status

University Marburg, Orthopedics and Rheumatology

Marburg, , Germany

Site Status

Kantonsspital Aarau, Orthopedics

Aarau, , Switzerland

Site Status

Countries

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Germany Switzerland

References

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Cypres A, Fiquet A, Girardin P, Fitch D, Bauchu P, Bonnard O, Noyer D, Roy C. Long-term outcomes of a dual-mobility cup and cementless triple-taper femoral stem combination in total hip replacement: a multicenter retrospective analysis. J Orthop Surg Res. 2019 Nov 21;14(1):376. doi: 10.1186/s13018-019-1436-y.

Reference Type DERIVED
PMID: 31752951 (View on PubMed)

Other Identifiers

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D10070

Identifier Type: -

Identifier Source: org_study_id