Tag Archives: TKA

PUBLISHED: Mako Robotic-Arm Assisted Total Knee Arthroplasty

Mako Robotic-Arm Assisted Total Knee Arthroplasty
Jeffrey S. Zarin, MD; Gustavo Barrazueta, MD
Tufts Medical Center

Total knee arthroplasty (TKA) has been around for decades and serves as a very successful procedure to alleviate pain and restore function in a knee with advanced degenerative joint disease. Over the years, there have been many advancements in surgical technique and even more so in implant design. One such technological breakthrough in TKA is the use of robotic-arm assistance for enhanced preoperative planning and intraoperative guidance with dynamic joint balancing and bone preparation.

In this video article, Dr. Zarin demonstrates the operative technique he uses in performing a posterior stabilizing TKA in a varus deformity degenerative knee using Mako robotic-arm assistance.

PREPRINT RELEASE: Mako Robotic Arm Assisted Total Knee Arthroplasty

Mako Robotic Arm Assisted Total Knee Arthroplasty
Tufts Medical Center
Jeffrey S. Zarin, MD
Chief, Division of Arthroplasty

In this case a 66-year-old patient presents with arthritis predominantly in the medial compartment. Dr. Jeffrey Zarin explains how to use the Mako robot to precisely plan and perform a total knee arthroplasty surgery on this patient. Preoperatively, he uses a CT scan to create a model of the patient in order to determine the appropriate implant size, and intraoperatively, he utilizes the Mako robot to assist in ligament and gap balancing, perform the osteotomies, and make precise corrections. 

PUBLISHED: Posterior Cruciate-Retaining Total Knee Arthroplasty

0062Posterior Cruciate-Retaining Total Knee Arthroplasty
Richard Scott, MD
Professor of Orthopaedic Surgery, Emeritus
Harvard Medical School

Abstract: Total knee arthroplasty has evolved into a very successful procedure to relieve pain and restore function in the arthritic knee with advanced structural damage. Optimal results are dependent on the restoration of alignment and ligament stability. Operative techniques involve either preservation of the posterior cruciate ligament or substitution of its function through increased prosthetic constraint. The vast majority of knees do not require cruciate substitution to establish appropriate stability and function. This video outlines the operative technique used by the author for posterior cruciate-retaining total knee arthroplasty in a patient with a preoperative varus deformity.