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Clinical Trial Details — Status: Terminated

Administrative data

NCT number NCT03738462
Other study ID # 18-001
Secondary ID
Status Terminated
Phase
First received
Last updated
Start date November 26, 2018
Est. completion date June 6, 2022

Study information

Verified date October 2023
Source Restor3D
Contact n/a
Is FDA regulated No
Health authority
Study type Observational

Clinical Trial Summary

This is a prospective multicenter study. Subjects will be implanted with a Conformis Hip System. If the surgeon intraoperatively decides to use the Cordera femoral stem, these patients will also be enrolled in the study and tracked as a subset of the Conformis Hip System patient population.The study sites will be located in the United States. The study subjects will be followed for 10 years post implantation.


Recruitment information / eligibility

Status Terminated
Enrollment 49
Est. completion date June 6, 2022
Est. primary completion date June 6, 2022
Accepts healthy volunteers
Gender All
Age group 18 Years and older
Eligibility Inclusion Criteria: - Clinical condition included in the approved Indications For Use for the Conformis Hip System and the Cordera Hip System - Osteoarthritis, as confirmed by the investigator's assessment of disease status at screening visit that warrants a THR procedure - Willingness to participate in the clinical study, to give informed consent, and to attend all follow-up visits - > 18 years of age Exclusion Criteria: - Simultaneous bilateral procedure required - BMI > 40 - Poorly controlled diabetes (defined as HbA1c>7 or Investigator discretion) - Crowe classification of hip dysplasia, grades 2, 3, or 4 - Active malignancy (defined as a history of any invasive malignancy - except non-melanoma skin cancer), unless patient has been treated with curative intent and there have been no clinical signs or symptoms of the malignancy for at least 5 years - Other lower extremity surgery planned within 1 year of consent to the affected limb Contralateral THR surgery within 3 months pre or post index surgery - Neuromuscular conditions which prevent patient from participating in study activities - Active local or systemic infection which precludes THR procedure - Immunocompromised in the opinion of the Investigator - Medically diagnosed fibromyalgia or similar conditions that might impact the patient's ability to differentiate source of pain - Rheumatoid arthritis or other forms of inflammatory joint disease - Loss of bone or musculature, osteonecrosis, neuromuscular or vascular compromise in the area of the joint to be operated on, to an extent that the procedure is unjustified - Diagnosed with or receiving treatment for osteoporosis that is likely to confound results in the opinion of the Investigator - Physical disability affecting the lumbar spine that is likely to confound results in the opinion of the Investigator - Charcot or Paget's disease - Inability to complete the protocol in the opinion of the clinical staff due to safety or other reasons - Participation in another clinical study which would confound results - Allergy to any of the implant materials

Study Design


Related Conditions & MeSH terms

  • Clinical Condition Included in the Approved Indications For Use for the Conformis Hip System

Intervention

Device:
Conformis Hip System
The Conformis Hip System is an FDA cleared, uncemented, primary total hip replacement device composed of femoral and acetabular components. The system incorporates the use of a pre-operative CT scan to design patient-specific implants and instruments. Using patient imaging (CT scan), a patient-specific implant is designed that best meets the geometric and anatomic requirements of the specific patient. In addition, each Conformis Hip System device is shipped with an additional (optional) femoral stem (Cordera Femoral Stem).

Locations

Country Name City State
United States Personalized Orthopedic Research Institute Boynton Beach Florida
United States Orthopaedic Institute of Henderson Henderson Nevada
United States Scott Orthopedic Center Huntington West Virginia
United States Tennessee Orthopaedic Alliance Nashville Tennessee
United States Denver Hip and Knee Parker Colorado
United States The Orthopedic Specialty Center of Northern California Roseville California

Sponsors (1)

Lead Sponsor Collaborator
Restor3D

Country where clinical trial is conducted

United States, 

Outcome

Type Measure Description Time frame Safety issue
Primary Harris Hip Score Score 0-100 (successful result = post operative increase in Harris Hip Score of > 20 points + radiographically stable implant + no additional femoral reconstruction; < 70 = poor, 70-79 - fair, 80-89 = good, and 90-100 = excellent) 2 Years
Secondary Revision rates post-implantation 10 Years
Secondary The Hip Injury and Osteoarthritis Outcome Score (HOOS) Score 0-100 for each of 5 subscales (symptoms, stiffness, pain, function, and quality of life) 10 Years
Secondary Incidence of major procedure-related and device-related complications including infection rate 10 Years
Secondary Post-operative leg length and implant placement in comparison to preoperative condition Peri-operative
Secondary Utilization of fluoroscopy during implantation (number of times utilized; amount of times utilized) Peri-operative
Secondary Length of procedure Peri-operative
Secondary Length of hospital stay Peri-operative
Secondary Blood management (transfusions) Peri-operative