Status:

WITHDRAWN

Study to Evaluate Patient Outcomes and Safety and Effectiveness of Robotic Assisted Unicompartmental Knee Replacements Versus Conventional Unicompartmental Knee for Subjects With Primary Arthritis of the Knee Joint Involving One (UKA) Compartment (Medial or Lateral)

Lead Sponsor:

Smith & Nephew, Inc.

Conditions:

Arthroplasty, Replacement, Knee

Unicompartmental Knee Arthroplasty

Eligibility:

All Genders

18+ years

Phase:

NA

Brief Summary

The overall aim of this trial is to compare functional and patient-reported outcomes and to assess the safety and effectiveness and long-term performance of the Smith+Nephew Robotic Systems for Unicom...

Detailed Description

There are two phases for this study: * Phase 1: The primary objective of this study is to compare Forgotten Joint Score (FJS) 12-month patient reported outcome scores, in patients undergoing robotic ...

Eligibility Criteria

Inclusion

  • The subject or, legal guardian (in the case of difficulty reading and/or writing,) must provide written informed consent, including consent for any incidental findings to be reported to their General Practitioner (reference section 7.5).
  • Subjects eighteen (18) years and older and considered to be skeletally mature at the time of surgery.
  • Willing and able to make all required study visits (for both phases of the study, up to 10 years postoperatively).
  • Able to follow instructions and deemed capable of completing all the study questionnaires.
  • The subject has primary arthritis of the knee joint involving one (UKA) compartment (medial or lateral), and is suitable for JOURNEY II UK in the opinion of the surgeon.
  • The subject can, and is willing to have radiographic images taken to include non-standard of care imaging (for long leg radiographs at follow up).

Exclusion

  • Contraindications or hypersensitivity to the use of the JII UK implant components (e.g., oxinium femoral, Tibial Baseplate, XPLE insert).
  • The subject is contraindicated for the use of robotic-assisted knee arthroplasty.
  • Participation in the treatment period of another clinical trial within thirty (30) days of the preoperative visit, or during the study.
  • Women who are pregnant, nursing, or of child-bearing potential who are not utilizing highly effective birth control measures.
  • Any subject that meets the definition of a Vulnerable Subject per ISO 14155 Section 3.55.
  • Subjects who have participated previously in this trial through UKR on other knee.
  • The subject is listed for a simultaneous bilateral knee arthroplasty
  • Subjects experiencing severe pain in both knees and consequently anticipating bilateral surgery within 12 months.
  • The subject requires a complex implant or any other implant, other than a standard UKR (e.g. stems, augments or custom-made devices)
  • Subject has an active infection or sepsis or has had previous intra-articular infections
  • Subjects with a history of poor compliance with medical treatment
  • The subject, in the opinion of the investigator, has a neuromuscular disorder (e.g. Charcot joint) that prohibits control of the index joint
  • Cases where bone stock is poor and would therefore make the procedure unjustifiable
  • Subjects with a BMI of 40 or higher
  • Those with incomplete/sufficient soft tissue around the joint.
  • Subjects with Conditions that tend to place increased loads on implants such as age, weight, and activity level, which are incompatible with a satisfactory long-term result.
  • Subjects with a medical or physical condition that, in the opinion of the Investigator, would preclude safe subject participation in the study.

Key Trial Info

Start Date :

November 21 2023

Trial Type :

INTERVENTIONAL

Allocation :

ACTUAL

End Date :

March 15 2036

Estimated Enrollment :

Patients enrolled

Trial Details

Trial ID

NCT06036212

Start Date

November 21 2023

End Date

March 15 2036

Last Update

November 17 2025

Active Locations (5)

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Page 1 of 2 (5 locations)

1

The Royal Orthopaedic Hospital NHS Foundation Trust

Birmingham, West Midlands, United Kingdom, B31 2AP

2

Colchester General Hospital

Colchester, United Kingdom, CO4 5JL

3

Central Middlesex Hospital

London, United Kingdom, NW10 7NS

4

Imperial College Healthcare NHS Trust, St Mary's Hospital

London, United Kingdom, W2 1NY