N/A N=299 Zimmer POLAR - Total Knee Arthroplasty (TKA)
Osteoarthritis · RheumatoId Arthritis · Traumatic Arthritis
Primary: Knee Society Scores — 92.9 units on a scale
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N/A N=50 Knee Kinematics for Subjects With Zimmer-Biomet Posterior Cruciate Retaining or Posterior Stabilizing Total Knee Arthroplasty
Arthroplasty, Replacement, Knee · Osteoarthritis, Knee
Primary: Lateral Condyle Kinematic Translations - Step up — 1.15; 2.28 mm
N/A N=21 In Vivo Kinematics for Subjects Implanted With Klassic Total Knee Arthroplasty (TKA)
Total Knee Arthroplasty · Osteo Arthritis Knee · Knee Implant
Primary: Axial Rotation (AR) During Deep Knee Bend — 6.6 degrees
N/A N=61 Stability of the Medial Pivot Total Knee Prosthesis
Osteoarthritis of Knee
Primary: Oxford Knee Score (OKS) Pre-operative Through 2 Years Post-operative — 16.31; 19.88; 29.96; 28.52 score on a scale
N/A N=48 Total Knee Arthroplasty: Functional and Clinical Outcomes
Knee Osteoarthritis
Primary: Change in Lower Quarter Y-Balance Test (YBT-LQ) (Dynamic Balance) From Baseline to 6 Weeks Following Total Knee Replacement — 69.98; 67.52; 73.25; 73.32 % of limb length…
N/A N=11 Clinical Investigation (Beta) of a New Developed Prosthetic Knee
Amputation
Primary: Satisfaction on Ramp Descent With the New Microprocessor-controlled Prosthetic Knee (MPK) — 1; 0; 3; 4 Participants
N/A N=56 Total Knee Arthroplasty: Comparison of Fixed and Mobile Bearings
Knee Osteoarthritis
Primary: Gait Stride Length — 1.2; 1.2 meters — p=0.05
N/A N=50 Kinematics in Posterior Cruciate Retaining and Bi-Cruciate Retaining Total Knee Replacements
Arthroplasty, Replacement, Knee · Osteoarthritis, Knee
Primary: Lateral Kinematics Translations While Ascending Ramp — 0.1; -0.4 mm
Phase 4 N=71 The 3DKnee™ System: A Post-Market Study
Osteoarthritis · Rheumatoid Arthritis · Post Traumatic Arthritis
Primary: Knee Society Score Evaluation — 82.9 Average Knee Rating Score
N/A N=115 TSolution One® Total Knee Arthroplasty
Osteoarthritis, Knee
Primary: Percentage of Patients With Postoperative Coronal Limb Alignment More Than ±3 Deg From the Planned Coronal Limb Alignment — 11.2 percentage of patients
N/A N=26 Improving Function After Knee Arthroplasty With Weight-Bearing Biofeedback
Arthropathy of Knee Joint
Primary: Weight-bearing Ratio During Five Times Sit-to-Stand Test (FTSST) — 0.77; 0.8 ratio — p==0.329
N/A N=66 Comparison of Knee Kinematics for Subjects Implanted With Either a ConforMIS or Traditional Knee Implant
Osteoarthritis
Primary: Post-operative Range of Motion — 103.8; 95.8 degrees
N/A N=10 A Biologic Joint Replacement Strategy to Treat Patients With Severe Knee Trauma and Post-Traumatic Knee Osteoarthritis
Post-traumatic Osteoarthritis
Primary: Visual Analogue Scale Pain Score — 2.3 units on a scale
N/A N=110 Active Versus Passive Motion Device Following Knee Replacement Surgery
Knee Arthroplasty
Primary: Early Functional Outcome Strength — 12.02; 11.60 newton meter
N/A N=184 Does Implant Design Improve Postoperative Flexion?
Non-inflammatory Arthritis
Primary: Knee Society Passive Flexion at 6 Months — 124.2; 124.0 Degrees of passive flexion
N/A N=50 In Vivo Kinematics Comparison of Stryker or Zimmer Total Knee Arthroplasty
Knee Prosthesis
Primary: Kinematics - Deep Knee Bend Activity — -0.43; -1.00; 3.51; -0.42 mm
N/A N=30 In Vivo Determination of 3D Patellofemoral Mechanics
Arthroplasty Replacement Knee · Knee Prosthesis
Primary: Patella Flexion With Respect to Femur — 80.0; 83.4; 93.7 degrees
N/A N=240 Comparison of A Mobile-Bearing Total Knee System With A Fixed-Bearing Total Knee System In Cemented Total Knee Arthroplasty
Degenerative Joint Disease
Primary: Maximum Knee Flexion — 110; 111; 111; 109.0 degrees — p=0.64
N/A N=20 The Metaphyseal Hip Prosthesis - Total Hip
Osteoarthritis of the Hip
Primary: RSA Translation X — 0.05; 0.05; 0.10; 0.08 mm
N/A N=5 Kinematic Analysis: Posterior Stabilized, Fixed Bearing Total Knee Arthroplasty With Attune Knee System
Total Knee Arthroplasty · Osteoarthritis
Primary: Femoro-tibial Kinematics - Translation and Lift-off for Deep Knee Bend — -4.89; -2.58 mm
N/A N=266 Prospective Multicenter Post Approval Study of the LPS-Flex Mobile Bearing Knee
Osteoarthritis · Traumatic Arthritis · Avascular Necrosis of the Femoral Condyle
Primary: Group 2 - Total Knee Society Score (KSS) — 92.2; 78.5; 118.2; 96.7 score on a scale
N/A N=331 A Study to Compare the NexGen LPS and LPS-Flex Knee Implants
Total Knee Arthroplasty · Osteoarthritis
Primary: Postoperative Range of Motion (ROM) — 102.3; 106.8; 117.6; 118.2 degrees
N/A N=145 Survivorship and Outcomes of Robot Assisted Medial Partial Knee Replacement
Unicompartmental Knee Arthroplasty
Primary: 10 Year Survivorship of Components — 110 Participants
N/A N=30 Kinematic Analysis: Posterior Stabilized, Fixed Bearing Total Knee Arthroplasty With Attune Knee System - Phase 2
Total Knee Arthroplasty · Osteoarthritis
Primary: Femoro-tibial Kinematics - Lateral Anterior/Posterior Motion — -5.81; -0.1; 0.58 mm
N/A N=83 Technology Interventions to Improve Outcomes After Knee Replacement
Knee Arthroplasty
Primary: Objectively Measured (Actigraph) Sedentary Behavior at 2 Months — 659.52; 638.24 minutes/day
N/A N=52 Stryker Triathlon Total Knee System for Total Knee Arthroplasty Implanted Using Shapematch Cutting Guides:Sub-Study A
Arthroplasties, Replacement, Knee
Primary: Repeatability of Cutting Guide Position — 0.990; 0.963; 0.936; 0.910 intraclass correlation coefficient (ICC)
N/A N=237 MAKO Total Knee Artroplasty
Osteoarthritis, Knee
Primary: Early Recovery — 3.6; 4.2 score on a scale
N/A N=3 Assist-Knee: Energy-Harvesting Knee Prosthesis
Transfemoral Amputation · Artificial Limbs
Primary: Time to Complete Sit-to-Stand — 1.6; 2.2; 1.4 seconds
N/A N=23 Skeletal Muscle Atrophy and Dysfunction Following Total Knee Arthroplasty
Knee Osteoarthristis
Primary: Cross-sectional Area (CSA) of Muscle Fibers — 2680; 2377; 2028; 1882 micron squared
Phase 4 N=99 Efficacy of Ipack Block and Surgeon's Joint Infiltration in Total Knee Arthroplasty
Osteo Arthritis Knee
Primary: Narcotic Consumption — 15.87; 13.67 morphine equivalents, mg