COLUMBUS, Ohio - OhioHealth orthopedic surgeon Thomas J. Kovack,DO, recently performed the world's first conventional total
shoulder joint replacement using the DJO Surgical, Match Point
System ™ patient-specific guide, a technology that enables a
greater accuracy in implant positioning to improve outcomes.
"This is an exciting advance that greatly enhances our ability
to properly place implants," said Dr. Kovack, who performed the
procedure with excellent initial results at OhioHealth Dublin
Methodist Hospital. "Studies have shown that there is a correlation
between the patient's overall outcome in terms of pain, range of
motion and function, and the position of the implants. The more out
of position the implants are, the worse the potential overall
The shoulder is a ball-and-socket joint in which the ball, or
head, of the upper arm bone fits into a shallow socket on the
shoulder blade. Replacement surgery removes the damaged parts of
the shoulder - typically from arthritis - and replaces them with
artificial implants to eliminate pain and restore function.
The Match Point System, recently approved by the FDA, uses
"patient specific" surgery drill guides to help surgeons place the
implants in positions that conform to the patient's anatomy for a
The customized drill guides - used to ensure accuracy in surgery
- are created from a pre-operative CT scan. The images from the
scan are uploaded into a program that creates a 3D reconstruction
model that the surgeon uses to manipulate exact positioning of the
Once the surgeon positions the implant and approves the
pre-operative plan, the drill guides are made according to the
predetermined measurements. "This takes the guesswork out of the
procedure," Dr. Kovack said. "We already have been using
patient-specific surgery guides successfully for knee and hip
replacements, and now we are making them for the shoulder."
Every drill guide is created for each particular patient, and
discarded after use. This new technology currently is available
only for the glenoid or socket side of the shoulder, which is the
most difficult part of replacement surgery. Soon the humeral or
ball side of the joint will have custom-made guides available.
"This new technology demonstrates the commitment of the
OhioHealth orthopedics program to innovation and leading-edge
advances," Dr. Kovack said. "As more people seek treatment for
shoulder joint pain and dysfunction, the Match Point System will
help more surgeons feel comfortable doing replacement
While less common than hip or knee replacement, shoulder
replacement surgery has become an increasingly popular option for
people with severe shoulder pain and dysfunction.
More than 53,000 shoulder replacements were performed last year
in the United States, according to the American Academy of
Orthopedic Surgeons, but the number is likely to increase as the
population ages. These patients are among the 4.5 million Americans
seeking medical care for shoulder pain each year.
Increased patient demand for shoulder replacement is prompting
improved instrumentation, planning tools and techniques for