MDR - Longevity IT Oblique and Offset Liners

PMCF Study to Provide Safety, Performance, and Clinical Benefits Data of the Longevity IT Oblique and Offset Liners in Primary and Revision Total Hip Arthroplasty - A Retrospective Enrollment/Prospective Follow-up Consecutive Series Study

The objective of this retrospective enrollment/prospective follow-up consecutive series PMCF study is to collect data confirming safety, performance, and clinical benefits of the Longevity IT Oblique and Offset liners when used for primary or revision total hip arthroplasty (implants and instrumentation) at a minimum of 10-year follow-up.

Study Overview

• Status: Terminated
• Conditions: Osteoarthritis; Avascular Necrosis; Traumatic Arthritis; Slipped Capital Femoral Epiphyses; Non-inflammatory Degenerative Joint Disease (NIDJD); Protrusio Acetabuli; Fracture of the Pelvis; Diastrophic Variant; Fused Hip
• Intervention / Treatment: Device: Total Hip Arthroplasty with Longevity IT Oblique Liners; Device: Total Hip Arthroplasty with Longevity IT Offset Liners

Detailed Description

The objective of this retrospective enrollment/prospective follow-up consecutive series PMCF study is to collect data confirming safety, performance, and clinical benefits of the Longevity IT Oblique and Offset liners when used for primary and revision total hip arthroplasty (implants and instrumentation) at 1, 3, 5, 7, and 10 years*. The subject devices have been on the market since 2010 but have insufficient data to support 10 years of clinical history. A prospective aspect to the study will be utilized to collect long-term data.

• Study Type: Observational
• Enrollment (Actual): 6

Contacts and Locations

Study Locations

• United States
  • Pennsylvania
    • Philadelphia, Pennsylvania, United States, 19107
      • Rothman Institute

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: Adult; Older Adult
• Accepts Healthy Volunteers: No

• Sampling Method: Non-Probability Sample

Study Population

The study population should be a consecutive series of subjects implanted with the Longevity IT Oblique and/or Offset liners in either primary or revision THA. Up to 52 implanted hips with the Oblique liners and up to 52 implanted hips with the Offset liners will be included in the study.

The study population for primary statistical analysis will be comprised of males and females who satisfy the inclusion/exclusion criteria outlined in the protocol. To avoid potential selection bias, each Investigator will offer study participation to each consecutive eligible patient presenting as a potential candidate. Eligible candidates who express interest in study participation will be offered Informed Consent.

Description

Inclusion Criteria:

• Study devices must have been implanted following the appropriate surgical technique and IFU
• Patient must be 18 years of age or older
• Patient must be willing and able to sign or verbally consent using the IRB approved informed consent
• Patient must have undergone primary or revision hip arthroplasty with the Longevity IT Oblique and/or Offset liners according to a cleared indication, which includes the following:
• Noninflammatory degenerative joint disease including osteoarthritis and avascular necrosis, protrusio acetabuli, traumatic arthritis, slipped capital, epiphysis, fused hip, fracture of the pelvis, and diastrophic variant
• Revision where other devices or treatments have failed
• Patient must have reached full skeletal maturity

Exclusion Criteria:

• Off-label use of study devices
• Osteoradionecrosis
• Neuromuscular compromise, vascular deficiency or other conditions in the affected limb that may lead to inadequate skeletal fixation
• Systemic or local infection
• Uncooperative patient or patient with neurologic disorders who is incapable of following directions
• Patient is known to be pregnant or nursing
• Patient is a prisoner
• Patient is a known alcohol or drug abuser
• Patient has a psychiatric illness or cognitive deficit that will not allow for proper informed consent

Study Plan

How is the study designed?

Number of groups / cohorts

2

Cohorts and Interventions

Group / Cohort	Intervention / Treatment
Longevity IT Oblique Liners; The Longevity IT Oblique liner was designed to provide variable joint anteversion and abduction.	Device: Total Hip Arthroplasty with Longevity IT Oblique Liners; Primary or Revision Total Hip Arthroplasty using the Longevity IT Oblique liners according to the approved indications and compatible device.
Longevity IT Offset Liners; The Longevity IT Offset liner was designed to lateralize the center of rotation of the cup.	Device: Total Hip Arthroplasty with Longevity IT Offset Liners; Primary or Revision Total Hip Arthroplasty using the Longevity IT Offset liners according to the approved indications and compatible device.

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Incidence of treatment-emergent Adverse Events (safety)	This will be assessed by recording the incidence and frequency of revisions, complications, and adverse events with particular focus on those that may be related to the study device.	10 years

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Pain and Functional Performance - Oxford Hip Score	"The Oxford Hip Score is patient-reported outcome instrument which contains 12 questions on activities of daily living that assess function and residual pain in patients undergoing total hip replacement surgery. Grading the Oxford Hip Score 0 to 19-May indicate severe hip arthritis... 20 to 29-May indicate moderate to severe hip arthritis... 30 to 39-May indicate mild to moderate hip arthritis... 40 to 48-May indicate satisfactory joint function..." Oxford Hip Score. (n.d.) Segen's Medical Dictionary. (2011). Retrieved August 19 2022 from https://medical-dictionary.thefreedictionary.com/Oxford+Hip+Score	10 years
Performance and Clinical Benefits - Harris Hip Score	Patient Assessment: reported Harris Hip Score (if available) Harris Hip Score: The HHS is divided into three sections. The first section questions is about pain and its impact, which are answered by the patient or client. The second and third sections require the physiotherapist to assess the patient or client's hip joint and function. The HHS is a measure of dysfunction so the higher the score, the better the outcome for the individual. Results can be recorded and calculated online. The maximum score possible is 100. Results can be interpreted with the following: <70 = poor result; 70-80 = fair, 80-90 = good, and 90-100 = excellent.	10 years
Performance and Clinical Benefits - Activity Level	Patient Assessment: activity level Records patient's activity level on a 10-point scale from 'wholly inactive' to 'regularly particpates in impact sports.	10 years

Collaborators and Investigators

• Sponsor: Zimmer Biomet
• Investigators: Study Director: Hillary Overholser, Zimmer Biomet

Study record dates

Study Major Dates

• Study Start (Actual): August 30, 2023
• Primary Completion (Actual): November 2, 2024
• Study Completion (Actual): November 7, 2024

Study Registration Dates

• First Submitted: July 24, 2023
• First Submitted That Met QC Criteria: August 4, 2023
• First Posted (Actual): August 7, 2023

Study Record Updates

• Last Update Posted (Actual): March 25, 2025
• Last Update Submitted That Met QC Criteria: December 20, 2024
• Last Verified: December 1, 2024

More Information

Terms related to this study

• Additional Relevant MeSH Terms: Bone Diseases; Musculoskeletal Diseases; Pathologic Processes; Arthritis; Rheumatic Diseases; Osteochondrodysplasias; Bone Diseases, Developmental; Epiphyses, Slipped; Joint Diseases; Necrosis; Osteoarthritis; Slipped Capital Femoral Epiphyses
• Other Study ID Numbers: MDRG2017-89MS-107H

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: NO

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: Yes
• product manufactured in and exported from the U.S.: Yes