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Recruiting NCT04095637

NCT04095637 RCT: Mako Medial Unicondylar Knee Arthroplasty vs Oxford Unicondylar Knee Arthroplasty

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Clinical Trial Summary
NCT ID NCT04095637
Status Recruiting
Phase
Sponsor University College, London
Condition Unicompartmental Knee Replacement
Study Type INTERVENTIONAL
Enrollment 140 participants
Start Date 2017-11-24
Primary Completion 2025-12-31

Eligibility & Interventions

Sex All sexes
Min Age 40 Years
Max Age 80 Years
Study Type INTERVENTIONAL
Interventions
Medial knee arthroplasty

Eligibility Fast-Check

Enter your details for a quick preliminary check. This does not replace medical advice.

What to Expect as a Participant

You will actively receive the study intervention — which may be a drug, biologic, device, or procedure.

This trial targets 140 participants in total. It began in 2017-11-24 with a primary completion date of 2025-12-31.

⚠ This information is for research awareness only. Always consult your physician before joining any clinical trial. Participation is voluntary and you may withdraw at any time.

Brief Summary

The overall aim of this prospective, randomised, single-blinded, controlled trial is to compare clinical outcomes and accuracy of implant positioning in Mako robotic UKA versus jig-based Oxford UKA with navigation control. Patients receiving the Mako robotic UKA (Stryker Ltd) will form the investigation group and those undergoing the jig-based Oxford UKA (Zimmer-Biomet Ltd) with navigation control will form the control group. The primary objective in this study is to compare accuracy of component positioning as assessed by postoperative low radiation dose CT scan between conventional Jig-based Oxford UKA with navigation control and Mako robotic UKA.

Eligibility Criteria

Inclusion Criteria: * • Patient has medial unicompartmental knee osteoarthritis requiring primary UKA * Patient and Surgeon are in agreement that UKA is the most appropriate treatment * Patient is fit for surgical intervention following review by surgeon and anaesthetist * Patient is between 40-80 years of age at time of surgery * Gender: male and female * Patient must be capable of giving informed consent and agree to comply with the postoperative review program * Patient must be a permanent resident in an area accessible to the study site * Patient must have sufficient postoperative mobility to attend follow-up clinics and allow for radiographs to be taken Exclusion Criteria: * • Patient is not suitable for primary UKA e.g. multi-compartmental knee osteoarthritis, anterior cruciate ligament rupture * Patient is not medically fit for surgical intervention * Patient requires revision surgery following previously failed correctional osteotomy or ipsilateral UKA * Patient is immobile or has another neurological condition affecting musculoskeletal function * Patient is less than 40 years of age or greater than 80 years of age * Patient is already enrolled on another concurrent clinical trial * Patient is unable or unwilling to sign the informed consent form specific to this study * Patient is unable to attend the follow-up programme * Patient is non-resident in local area or expected to leave the catchment area postoperatively

Contact & Investigator

Central Contact

Jenni Tahmassebi

✉ jenni.tahmassebi1@nhs.net

📞 02034479413

Principal Investigator

Fares S Haddad

STUDY CHAIR

UCL Hospitals NHS Foundation Trust

Frequently Asked Questions

Who can join the NCT04095637 clinical trial?

This trial is open to participants of all sexes, aged 40 Years or older, up to 80 Years, studying Unicompartmental Knee Replacement. Full inclusion and exclusion criteria are listed in the Eligibility Criteria section. Always confirm your eligibility with the research team before applying.

Is NCT04095637 currently recruiting?

Yes, NCT04095637 is actively recruiting participants. Contact the research team at jenni.tahmassebi1@nhs.net for enrollment information.

Where is the NCT04095637 trial being conducted?

This trial is being conducted at London, United Kingdom.

Who is sponsoring the NCT04095637 clinical trial?

NCT04095637 is sponsored by University College, London. The principal investigator is Fares S Haddad at UCL Hospitals NHS Foundation Trust. The trial plans to enroll 140 participants.

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ClinicalMetric — Independent clinical trial intelligence platform. Not affiliated with NIH, ClinicalTrials.gov, the U.S. FDA, or any pharmaceutical company, hospital, or clinical research organization. Trial data is sourced from ClinicalTrials.gov for informational purposes only and does not constitute medical advice. Do not make any treatment, enrollment, or health decisions based solely on information found here — always consult a qualified healthcare professional. Full Disclaimer  ·  Last Reviewed: September 2026  ·  Data Methodology