NCT02613338

Kinematic Analysis: Posterior Stabilized, Fixed Bearing Total Knee Arthroplasty With Attune Knee System - Phase 2

• Status: Completed
• Phase: —
• Study type: Observational
• Enrollment: 30 (actual)
• Sponsor: The University of Tennessee, Knoxville · Academic / Other
• Sex: All
• Age: 30 Years – 80 Years
• Healthy volunteers: Not accepted

Summary

A better understanding of knee joint kinematics is important to explain the premature polyethylene wear failures within total knee arthroplasties (TKAs) and to help design a prosthesis that most closely approximates the normal knee. Specifically, posterior stabilizing (PS) knees have been found to be associated with lower amounts of posterior femoral rollback, higher occurrence of reverse axial rotation and increased amount of condylar lift-off. The DePuy Synthes Joint Reconstruction's Attune PS fixed bearing (FB) knee system has incorporated subtle changes in its design to address restoration of kinematics that more closely resemble those of a normal knee. To understand if this design is able to effectively restore kinematics in the implanted knee, further in vivo analysis is necessary. This continuation of the study will analyze 30 subjects with the Attune PS FB 3 months post-operatively using the University of Tennessee's mobile fluoroscopy unit while performing three daily activities, level walking, ramp down and deep knee bend.

Conditions

• Total Knee Arthroplasty
• Osteoarthritis

Interventions

Type	Name	Description
DEVICE	DePuy Attune posterior stabilizing fixed bearing knee system	Individuals implanted with the DePuy Attune posterior stabilizing fixed bearing knee system at least three months post-operative.

Timeline

• Start date: 2015-11-01
• Primary completion: 2018-12-01
• Completion: 2019-01-01
• First posted: 2015-11-24
• Last updated: 2019-11-12
• Results posted: 2019-11-12

Locations

5 sites across 1 country: United States