Computer Aided Gap Balancing Improves Sagittal Stability and Outcomes for Cruciate-Retaining Total Knee Arthroplasty

Not Applicable

Completed

• Conditions: Osteoarthritis of the Knee
• Interventions: Procedure: Conventional total knee arthroplasty; Procedure: Computer aided total knee arthroplasty

• Registration Number: NCT00865865
• Lead Sponsor: Singapore General Hospital

Brief Summary

Computer Aided Surgery in total knee arthroplasty improves knee stability and functional outcomes more than conventional total knee arthroplasty.

Detailed Description

The success of total knee arthroplasty depends on restoration of limb alignment, precise implant positioning and optimal gap balancing. The advent of computer aided surgery (CAS) has improved limb alignment and implant positioning. The objective of this study was to evaluate the functional outcome of computer aided soft tissue gap balancing in total knee arthroplasty.

Study Timeline

• Study Start: 2006-05
• Primary Completion: 2008-12
• Study Completion: 2008-12
• Status Verified: 2009-03
• Study First Submitted: 2009-03-17
• Study First Submitted QC: 2009-03-18
• Last Update Submitted: 2009-03-18
• Study First Posted: 2009-03-19
• Last Update Posted: 2009-03-19

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 140

Inclusion Criteria

• primary osteoarthritis of the knee

Exclusion Criteria

• rheumatoid arthritis, previous knee surgery, infection and those who could not be treated with unconstrained cruciate retaining TKA and a short stem tibial implant

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
1	Conventional total knee arthroplasty	Conventional total knee arthroplasty
2	Computer aided total knee arthroplasty	Computer aided total knee arthroplasty

Primary Outcome Measures

Name	Time	Method
Sagittal stability of knee	2 YEARS

Secondary Outcome Measures

Name	Time	Method
Functional status of postoperative patients	2 YEARS