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A Prospective Clinical Study Evaluating the Newton™ TKA Protocol

Evaluation of Clinical Outcomes and Patient Recovery in Patients Receiving TKA With Traditional Instrumentation Systems Compared to Full Arc of Motion Gap Balancing Using the Newton™ Knee Protocol: A Prospective Clinical Study

Status
Withdrawn
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06678750
Enrollment
0
Registered
2024-11-07
Start date
2024-12-31
Completion date
2026-06-30
Last updated
2025-10-17

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Total Knee Arthroplasty

Brief summary

Evaluation of clinical outcomes and patient recovery in patients receiving TKA with traditional instrumentation systems compared to full arc of motion gap balancing using the Newton TM Knee Protocol

Detailed description

The purpose of this study is to evaluate patient outcomes, recovery, and patient/surgeon satisfaction of individuals who undergo a total knee arthroplasty (TKA) using mechanical instrumentation (non-navigated) compared to individuals who undergo a TKA with a tibia first gap balancing surgical workflow using the NewtonTM Knee Protocol and navigation-assistance (ExachtechGPS®).

Interventions

DEVICETKA using computer navigation

TKA using Exactech GPS Newton Knee protocol

PROCEDURETKA

TKA using manual instrumentation

Sponsors

Exactech
CollaboratorINDUSTRY
Newton-Wellesley Hospital
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Patients of Kaplan Joint Center, Newton Wellesley Hospital scheduled for TKA with a specific implant

Exclusion criteria

* Patients may be excluded due to some medical conditions

Design outcomes

Primary

MeasureTime frameDescription
Patient recovery from TKA by measuring use of assisted walking devicesOne year post-opPatient recovery from TKA by measuring the number of days using an assisted walking device following surgery.
Patient satisfaction with TKA using patient reported KOOS JR QuestionnairePre-op, 4 weeks post-op, 12 weeks post-op, one year post-opThe KOOS, JR combines the pain, symptoms, and functional limitations into a single score.
Patient satisfaction with TKA using Oxford Knee Score (OKS) QuestionnairePre-op, 4 weeks post-op, 12 weeks post-op, one year post-opThe OKS is a patient reported questionnaire that measures function and pain with a single score.
Patient satisfaction with TKA using Forgotten Joint Score (FJS) QuestionnairePre-op, 4 weeks post-op, 12 weeks post-op, one year post-opThe Forgotten Joint Score assesses the ability of the patient to forget about their joint given successful treatment by assigning a single score to a series of questions.
Patient recovery from TKA using time from hospital stay to dischargePost-op measure in hoursThe time of in-patient hospital stay will be measured (in hours).
Patient recovery from TKA by measuring number of outpatient visitsOne year post-opNumber of outpatient visits (scheduled and unscheduled)
Patient recovery from TKA by measuring number of PT visitsOne year post-opNumber of post-op PT visits
Patient recovery from TKA by measuring medication consumptionOne year post-opPost-op, prescription medication will be recorded in number of pills and dosage

Secondary

MeasureTime frameDescription
Knee alignment and soft tissue balancePre-op, 4 weeks post-op, 12 weeks post-op, one year post-opTelemetric x-rays will be used to assess the angles and evaluate the joint line status pre- and post-operatively.

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026