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Not yet recruiting NCT07646158

Alignment Techniques in TKA RCT

Phase IV Interventional Osteo Arthritis of the Knee Obesity & Overweight

For patients and families

In plain language

An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.

What is being studied
The protocol lists: Technology-assisted inverse kinematic alignment TKA, Manual-instrumented gap balancing alignment TKA.
Who it may be relevant to
Registry conditions: Osteo Arthritis of the Knee, Obesity & Overweight. Basic parameters: 18 years — 100 years · All.
What needs checking
Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
Where it takes place
Center list to be confirmed — check the primary protocol.
Next step
Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →

Unsure about the terms? Read our patient guide →

Official title

Investigating Alignment Techniques in Total Knee Arthroplasty for Morbid Obese Patients: Randomize Control Trial.

Overview

The purpose of this research study is to compare two different methods used to align the knee during a total knee arthroplasty (TKA): technology-assisted inverse kinematic alignment, and manual-instrumented gap balancing alignment. The first technique uses robotic or computer-assisted technology to help the surgeon place the knee implant based on the patient's individual anatomy, whereas the manual technique uses standard surgical instruments and manual methods to position and balance the knee implant during surgery. The main difference is that one approach uses robotic or computer assistance to help guide implant positioning, while the other uses traditional instruments and manual surgical techniques. Both methods are commonly used and are considered standard care. The goal of this study is to understand whether one method results in better knee motion, function, and recovery after surgery in patients with higher body weight.

Interventions

  • Procedure Technology-assisted inverse kinematic alignment TKA
    This technique uses robotic or computer-assisted technology to help the surgeon place the knee implant based on the patient's individual anatomy.
  • Procedure Manual-instrumented gap balancing alignment TKA
    This manual technique uses standard surgical instruments and manual methods to position and balance the knee implant during surgery.

Primary outcome measures

  • Range of motion [Time frame: From enrollment to the end of follow-up at 1 year after intervention.]

Eligibility criteria

Inclusion criteria

  • Being an adult (age >= 18 years)
  • Being indicated for Total Knee Arthroplasty (TKA) for the treatment of non-inflammatory knee osteoarthritis by the PI or sub-investigators.
  • Having a body mass index (BMI) >= 35 kg/m2

Exclusion criteria

  • Patients who are unable to provide written consent
  • Being under-age (age < 18 years)
  • Having a BMI < 35 kg/m2
  • Having a non-elective TKA
  • Having a diagnosis of secondary or inflammatory, rheumatic, psoriatic, osteoarthritis of the index knee
  • Having a local or widespread infection
  • Being pregnant - Women who become pregnant at any point throughout the research study will become excluded/ineligible and will immediately stop all study activities.
  • Women who are capable of becoming pregnant and not currently on contraceptives will be excluded from this study because it will be difficult to obtain the weightbearing CT using the standard CT shield for pregnant women.
  • Having had a previous open surgery of the index knee
  • Presence of local or widespread infection
  • Having a revision TKA
  • Having a simultaneous bilateral TKA
  • Not being able to safely conduct study procedures - If patients are wheelchair bound or require an assistive device to stand for 5 minutes, they will be excluded from this study.
  • Non-English speakers
  • Prisoners

Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.

Healthy volunteers: No

Study design

Allocation
Randomized
Model
Parallel assignment
Masking
Single blind
Primary purpose
Treatment

Study locations

Center list to be confirmed — check the primary protocol.

Identifiers

NCT: NCT07646158 · 202510443

Primary sources (government registries)

View this study on ClinicalTrials.gov ↗