Cory Calendine, M.D.

Cory Calendine, M.D. Orthopedic Surgeon, Hip/Knee Replacement Specialist, Cory Calendine, MD, Nashville/Brentwood/Franklin https://linktr.ee/corycalendinemd
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04/03/2026

Subvastus Knee Replacement - Part 4/5
Every patient in my practice gets a CT scan before surgery. That scan creates a custom three-dimensional model of their knee, unique to their anatomy. In the operating room, the robotic arm uses that model to provide real-time feedback on every bone cut and every degree of alignment.
The precision is measured in millimeters. What makes this powerful is the combination. We access the joint through a muscle sparing - preserving the quadriceps tendon entirely. Then we execute the replacement with robotic guidance that does not depend on a wide-open exposure to achieve accuracy. Less tissue trauma getting in. More precision once we are there. That is the philosophy. Spare the soft tissues and let the technology handle the precision. It is the best of both worlds for our patients.
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04/03/2026

Subvastus Knee Replacement - Part 3/5
The subvastus approach is called muscle-sparing for a reason. Because the quadriceps tendon is never divided, patients can often perform a straight leg raise in the recovery room immediately after surgery. Not days later. That early quad function is a direct result of preserving the extensor mechanism.
For years, one valid criticism of the approach was the limited surgical window. Working through a smaller exposure could make it more challenging to visualize the joint and position implants with precision. That concern was legitimate. But robotic-assisted technology has fundamentally changed that equation.
More on Robotic-assisted Knee Replacement UP NEXT

04/03/2026

Subvastus Knee Replacement - Part 2/5

The subvastus approach changes the conversation about how we access the knee during replacement. Instead of splitting the quadriceps tendon down the middle, this technique goes underneath the vastus medialis oblique. The entire quadriceps mechanism stays intact.
All four muscles remain connected and unviolated. We gently elevate the muscle and slide it laterally, almost like opening a book, to expose the joint. The replacement is performed, the capsule is closed, and everything slides back into its anatomic position. No tendon split. No muscle repair that the patient has to fight against with every step. This is a meaningful distinction. When we preserve the extensor mechanism, we give patients a head start on recovery from the moment they leave the operating room. The approach matters.
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04/03/2026

Subvastus Knee Replacement - Part 1/5
The medial parapatellar approach has been the workhorse of total for decades. It is reliable, well-studied, and familiar to nearly every orthopedic surgeon trained in arthroplasty. But understanding what this approach actually demands of the patient is worth a closer look.
The surgeon incises along the medial border of the patella and splits the quadriceps tendon to access the joint. That split goes through one of the most important structures for knee extension. After closure, every step the patient takes loads that repair. Every quad contraction pulls against the healing tissue. It works.
Millions of successful knee replacements prove that. But when we talk about recovery timelines and early postoperative function, this is exactly why the approach matters. The access we choose on day one shapes the recovery our patients experience for weeks and months afterward.

04/01/2026

🪚. How Much Bone Is Actually Removed During Hip Replacement Surgery?
Do we remove massive amounts of bone during a total arthroplasty? The reality is far more precise, and modern surgical techniques are designed to be as bone-conserving as possible. During a surgeons remove the diseased femoral head (the ball) and a portion of the acetabulum (the socket). To address the femoral head, the entire top of the thigh bone is cut off and removed using a special oscillating saw. Despite how intensive this may sound to a patient, roughly only 25-75g of bone is actually removed from the femur. Next, we address the acetabulum (hip socket) - it is reamed, removing cartilage and a small amount of bone to create a smooth surface for the new cup.
Finally, the inside of the femur, known as the femoral canal, is carefully cleaned and shaped to accept the new prosthetic stem. While it is true that a total hip replacement typically involves removing slightly more bone than a total knee replacement, the absolute volume in both procedures is remarkably small. The socket is simply reamed to remove the damaged cartilage and bone, replacing them with a titanium, ceramic, or plastic implant. Modern techniques focus on limiting bone removal, particularly in cementless cases where the patient’s native bone is preserved for the implant to securely wedge into. Our goal is never to just remove tissue - it is to carefully resurface the joint. By preserving your native bone architecture, we can ensure better implant fixation, a more natural feel, and an optimized foundation for long-term mobility.
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A patient asked if her late daughter’s favorite song could play in the OR during her knee replacement.It did. That’s the...
04/01/2026

A patient asked if her late daughter’s favorite song could play in the OR during her knee replacement.

It did. That’s the kind of care we believe every patient deserves. → https://corycalendinemd.com/schedule

The Colles Fracture: History, Clinical Description, and the Surgeon Who Got There FirstAbraham Colles described the most...
03/30/2026

The Colles Fracture: History, Clinical Description, and the Surgeon Who Got There First
Abraham Colles described the most common wrist fracture in history (1814) before X-rays existed - through pure clinical observation. Dr. Colles (1773-1843) was an Irish surgeon who trained at the Royal College of Surgeons in Ireland, earned his doctorate (Edinburgh) and became RCSI President at just 29 yo. He held dual chairs in Anatomy and Physiology and in Surgery for decades, and he transformed how anatomy was taught. Before Colles, students learned the entire muscular system one week, the vascular system the next, all in isolation. He called that approach fundamentally misconceived and championed regional anatomy instead, studying how systems work together in a given part of the body. That regional framework is now the global standard.
Dr. Colles’ 1814 paper in the Edinburgh Medical and Surgical Journal described what we now call the Colles fracture with striking precision. A fall on an outstretched hand. Dorsal displacement of the distal radius. The classic dinner-fork deformity. All documented without a single radiograph. He wrote: “The study of anatomy too generally ends at that point where it begins to be useful.” - a line that should be posted in every residency program in the country. He also challenged his students: “No man can know his own profession perfectly who knows nothing else.” He believed great surgeons had to think broadly, philosophically, across disciplines.And at the bedside, he never lost sight of the person in the bed: “We must never forget that the patient is a sensitive, living organism, not merely a broken machine to be fixed.” Two hundred years later, that principle still defines what separates good from great medicine.
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37067

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About Dr. Cory Calendine

Cory Calendine, M.D., received his medical degree from the University of Tennessee College of Medicine. He completed a residency in orthopaedic surgery at Vanderbilt University Medical Center, followed by fellowship training in adult reconstruction of the hip and knee at the world-renowned Anderson Orthopaedic Research Institute in Alexandria, Virginia.

Dr. Calendine currently serves as chief of the Division of Orthopaedic Surgery for Williamson Medical Center, where he often hosts national and international visiting surgeons who come to learn the latest techniques. He also serves as an elite reviewer for the Journal of Arthroplasty, and in 2018 was selected to serve as a member of the American Board of Orthopaedic Surgery Blueprint Development Exercise Work Group, which creates content for national credentialing exams. Dr. Calendine also lectures nationally and internationally on joint replacement, most recently at the 2018 Chinese Hip Society in Guiyang, China.

When he’s not practicing medicine, Dr. Calendine enjoys golf, movies, racquetball, youth ministry and weightlifting. He also dedicates his time to various nonprofit groups, such as Mission UpReach, City of Children and the Sarah Walker Foundation.