Arthroplasty, Replacement, Knee Clinical Trial
Official title:
Effect of Surgical Technique on Resection Symmetry of the Patella in Total Knee Arthroplasty
Verified date | February 2016 |
Source | Mayo Clinic |
Contact | n/a |
Is FDA regulated | No |
Health authority | United States: Institutional Review Board |
Study type | Interventional |
This research was performed to determine which of the three techniques used by knee surgeons at the Mayo Clinic was the most accurate at the surgical removal (resection) of the knee-cap (patella) in a symmetric fashion during total knee replacement (arthroplasty). Although all three techniques are known to be effective, the three techniques had never been compared to one another to determine if one was more effective than the others at resecting the patella.
Status | Completed |
Enrollment | 90 |
Est. completion date | December 2015 |
Est. primary completion date | December 2015 |
Accepts healthy volunteers | No |
Gender | Both |
Age group | 18 Years to 99 Years |
Eligibility |
Inclusion Criteria: - Patients scheduled for primary total knee arthroplasty with planned patellar resection by one of the three staff surgeons included in the study. - Patient must be able and willing to provide consent for study participation Exclusion Criteria: - Patient in need of revision total knee arthroplasty or having already undergone prior total knee arthroplasty - Patient not in need of patellar resection during their primary total knee arthroplasty - Unwilling or unable to provide consent for participation |
Allocation: Randomized, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Treatment
Country | Name | City | State |
---|---|---|---|
United States | Mayo Clinic in Rochester | Rochester | Minnesota |
Lead Sponsor | Collaborator |
---|---|
Mayo Clinic |
United States,
Camp CL, Martin JR, Krych AJ, Taunton MJ, Spencer-Gardner L, Trousdale RT. Resection Technique Does Affect Resection Symmetry and Thickness of the Patella During Total Knee Arthroplasty: A Prospective Randomized Trial. J Arthroplasty. 2015 Dec;30(12):2110 — View Citation
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Mean Asymmetry of the Patella After Patella Resection | Post-resection symmetry of the patella was independently assessed by a resident or fellow who was not involved in the resection. This was evaluated by dividing the patella into four equal quadrants and measuring the thickness in the center of each quadrant using a ring tipped or "C"-shaped caliper. The difference between the thickest and thinnest measurements of the patella was reported as the value of asymmetry. | approximate average surgery time of 3 hours | No |
Secondary | The Difference Between Surgeon Goal and Actual Resection Height | This outcome measure attempts to capture the most accurate method for obtaining a desired thickness. Each patellar resection procedure began by exposing the articular surface of the patella. Once the patella was fully exposed and the surgeon measured the native patellar thickness, the timer was started. The surgeon then stated their goal for post resection thickness, and these values were recorded. After the final resection, the timer was stopped. The ability to obtain the resection goal was independently assessed by a resident or fellow not involved in the resection. This was calculated by taking the difference between the surgeon's goal and the average thickness of the four quadrants measured by the resident or fellow. | Time 0 (prior to patella resection), and after surgery (approximately 3 hours) | No |
Secondary | Time to Complete Patella Resurfacing | Each patellar resection procedure began by exposing the articular surface of the patella. Once the patella was fully exposed and the surgeon measured the native patellar thickness, the timer was started. After the final resection, the timer was stopped. | Time 0 (prior to patella resection), and after surgery (approximately 3 hours) | No |
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