Gait Kinematics After Primary Total Knee Arthroplasty (TKA) Versus Revision TKA

Hospices Civils de Lyon32 enrolled

Overview

The functional outcomes after TKA are satisfying with a full recovery at 6 months - 1 year. Nevertheless, the revisions of TKA have often lower functional results than primary TKA with a long delay of recovery. The Stryker TKA present the same device for primary TKA and for revision. The aim of this study is to compare the gait kinematics at 6 months after primary Stryker TKA or Revision Stryker TKA to assess if the objective outcomes are similar with this device.

Study Type

OBSERVATIONAL

Enrollment

Conditions

Knee Arthroplasty, Total Gait Analysis

Interventions

Group primary TKADEVICE

Assessment by gait kinematics analysis The total knee arthroplasty will be performed as usual with the dedicated instrumentation. The gait kinematics analysis will be performed with the KneeKG system on a treadmill, with infrared sensors (IR) on the leg. This system is not invasive. The IR sensors are positioned on the pelvis, the distal femur and the tibial crest. This system records the flexion/extension, the varus/valgus and the rotation during the walking (1 minute of walking).

Group TKA revisionDEVICE

Assessment by gait kinematics analysis The total knee arthroplasty will be performed as usual with the dedicated instrumentation. The gait kinematics analysis will be performed with the KneeKG system on a treadmill, with infrared sensors on the leg. This system is not invasive. The IR sensors are positioned on the pelvis, the distal femur and the tibial crest. This system records the flexion/extension, the varus/valgus and the rotation during the walking (1 minute of walking).

Eligibility

Sex: ALLMin age: 18 Years

Medical Language ↔ Plain English

Inclusion Criteria: * Primary TKA group: symptomatic femorotibial osteoarthritis, with an indication of primary TKA (as Triathlon Stryker) * Revision group: first TKA removal in 1 step for mechanical failure, by a revision TKA (as Triathlon Stryker) Exclusion Criteria: * Septic failure * Second or more failure in the revision group * Associated surgical procedure as osteotomy, allograft… * Not full weight bearing postoperatively * Refusal to participate

Locations (1)

Hôpital de la Croix Rousse

Lyon, France

Outcomes

Primary Outcomes

Femorotibial mechanical axis (varus, valgus) analysis

These parameters are measured with the KneeKG system during the walking

Time frame: at 6 months postoperatively

range of motion (flexion, extension) analysis

These parameters are measured with the KneeKG system during the walking

Time frame: at 6 months postoperatively

internal/external rotation analysis

These parameter is measured with the KneeKG system during the walking

Time frame: at 6 months postoperatively

Walking speed

These parameter is measured with the KneeKG system

Time frame: at 6 months postoperatively

Data from ClinicalTrials.gov

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