Clinical Trials Logo

Clinical Trial Summary

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.


Clinical Trial Description

Resection of the patella to prepare it for placement of a patellar prosthesis is a procedure that is performed routinely in the vast majority of total knee arthroplasties (TKA) in the United States and at the Mayo Clinic. This procedure is performed by a number of different techniques that have been proved to be safe and effective. Despite this, patellar instability, tilt, obliquity, and maltracking are all possible complications of improperly resected patellae during TKA. The goals of resection are to create a patella that is symmetrical, absent of obliquity (slanting), and thick enough to receive a patellar prosthesis. Although outcomes are generally good for most described methods, to date, little had been published regarding direct comparison of these methods.

Patients undergoing TKA with planned patellar resection were randomized to have their patella resected by one of three methods during primary TKA: 1) use of a cutting guide, 2) haptic feedback, or 3) free-hand resection guided by four quadrant measurements. There were three experienced fellowship-trained arthroplasty surgeons (hip and knee) performing the procedures who were all familiar and experienced with each of the three techniques being investigated. Each surgeon, within a group of 30 of their patients, performed a total 10 resections using each of the three methods listed above (30 resections per surgeon for a total of 90 resections).

Before and after resection measurements of knee-cap thickness were taken and used to determine patellar symmetry. The resulting symmetry of each of the three techniques was then be compared between and within each of the three techniques and surgeons. Each procedure was also be timed from first measurement by the staff surgeon to the final measurement by that surgeon. ;


Study Design

Allocation: Randomized, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Treatment


Related Conditions & MeSH terms


NCT number NCT01822574
Study type Interventional
Source Mayo Clinic
Contact
Status Completed
Phase N/A
Start date March 2013
Completion date December 2015

See also
  Status Clinical Trial Phase
Active, not recruiting NCT05666479 - CGM Monitoring in T2DM Patients Undergoing Orthopaedic Replacement Surgery
Recruiting NCT05002387 - Diagnostic Knee Needle Arthroscopy in Predicting Unicompartmental Knee Osteoarthritis N/A
Recruiting NCT06080763 - Biomechanics and Clinical Outcomes in Responders and Non-Responders
Completed NCT03008967 - A Study of Patients Undergoing Total Knee and Hip Arthroplasty at a Regional Hospital in Denmark N/A
Withdrawn NCT02255877 - ZIPS Study - Zip Incision Approximation vs. STAPLE Phase 4
Completed NCT02642731 - Kidney Biomarkers of Acute Kidney Injury in Patients With Knee Arthroplasty N/A
Completed NCT02525588 - Polyethylene Wear Study on the Triathlon Total Knee Prosthesis N/A
Completed NCT01799772 - The Feasibility of a Comprehensive Behavioral Intervention in Patient Post TKA Phase 1/Phase 2
Completed NCT02520531 - Scorpio Posterior Stabilised (PS) vs Scorpio NRG ("Energize") PS - Total Knee Arthroplasty N/A
Completed NCT03183856 - Comparison of Ambulatory and Functional Improvement by Morning Walk N/A
Completed NCT03569397 - Music Therapy Versus Control for Total Knee Arthroplasty N/A
Terminated NCT02711592 - Pharmacogenomics Information in Enhancing Post-operative Total Joint Replacement Pain Management: a Pilot Study N/A
Completed NCT03145493 - Effect of Suction Drains in Total Knee Arthroplasty With Tranexamic Acid N/A
Terminated NCT05602701 - Preoperative Prediction of Postoperative Physical Function
Recruiting NCT03570944 - Postoperative Outcomes Within an Enhanced Recovery After Surgery Protocol (POWER2)
Completed NCT02773537 - Motor-Sparing Peripheral Nerve Blockade Facilitates Mobility Post Total Knee Arthroplasty: A Randomized Controlled Trial N/A
Withdrawn NCT02553122 - The Combined Efficacy of Evicel and Tranexamic Acid on Total Knee Arthroplasty Phase 3
Recruiting NCT02385383 - An Intravenous Iron Based Protocol for Preoperative Anaemia in Hip and Knee Surgery - An Observational Study N/A
Terminated NCT02155712 - Triathlon Tritanium Knee Outcomes Study N/A
Completed NCT02121392 - Epidural Catheter With or Without Adductor Canal Nerve Block for Postoperative Analgesia Following Total Knee Arthroplasty N/A