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Cory Calendine, M.D.

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Cory Calendine, M.D.

Orthopedic Surgeon, Hip/Knee Replacement Specialist, Cory Calendine, MD, Nashville/Brentwood/Franklin https://linktr.ee/corycalendinemd
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08/30/2025

Knee Replacement: A Brief History
Knee replacement innovation spans >160 remarkable years, transforming from experimental procedures to life-changing treatments that restore mobility to millions worldwide. In 1890, Theophilus Gluck performed the first documented knee replacement using carved ivory and plaster of Paris. While his pioneering attempt failed due to infection, it proved that artificial joints were theoretically possible. The modern era truly began in the 70s with the development of the Total Condylar prosthesis, establishing the foundation for contemporary knee replacement design. The introduction of high-density polyethylene (1963) and bone cement revolutionized implant durability + fixation methods that remain standard practice today
The 90s marked a tech revolution as computers entered the OR - computer-assisted navigation systems enabled surgeons to achieve unprecedented precision and has continued into the 2000s with the development of patient-specific instrumentation using CT/MRI scans to create customized surgical guides and allow 3D preop planning. Today’s robotic-assisted surgery continues to optimize surgical precision with submillimeter accuracy. Advanced robotic systems have made minimally invasive approaches like the Subvastus or SubV technique more accessible, reducing tissue trauma and accelerating patient recovery - enabling smaller incisions, preserving more natural tissue, and providing real-time feedback during surgery
👇What do you think the next BIG INNOVATION in surgery will be?

08/26/2025

🦸‍♀️ Knee Ligament Anatomy
Your knee contains an incredible team of ligamentous superheroes working together to keep you moving:
🔹PCL (Posterior Cruciate Ligament) - Hulking strength, twice as strong as the ACL and serves as the primary posterior restraint of the tibia. This powerhouse ligament is thicker than your thumb and rarely tears due to its exceptional durability
🔹ACL (Anterior Cruciate Ligament) - As the most famous, your ACL controls those complex pivot and cutting movements; most reconstructed ligament with >400,000 injuries yearly; crosses over the PCL forming “X” pattern for Anterior-Posterior stability
🔹MCL (Medial Collateral Ligament) - Like Captain America’s shield, MCL is the widest + flattest ligament consisting of 6 separate bands that guard your inner knee - impressive healing capacity when injured
🔹LCL (Lateral Collateral Ligament) - Stealth precision, your LCL is the thinnest major ligament w/ a sleek, cord-like design and works independently (not connecting to the meniscus)
🔹Patellar Ligament - actually a tendon disguised as a ligament, transforming quadriceps muscle power into leg movement as your strongest front-of-knee structure
🔹ALL (Anterolateral Ligament) - Only described since 2013, your ALL provides targeted rotational control; thinner than dental floss and not present in everyone.
🔹Transverse Ligament - Despite being only ~20mm long, this tiny connector links both menisci together helping stabilize yopur entire knee system
👇 How many more knee ligaments can you name? Have a favorite - favorite Superhero

08/25/2025

Considering knee replacement? As a surgeon who's performed hundreds of these procedures, robotic technology truly changes patient outcomes.
Robotic patients can experience 25% less blood loss, less tissue trauma, and often go home sooner. The precision is remarkable - sub-millimeter accuracy using your unique anatomy as a surgical roadmap.
But it's not for everyone. In my latest blog, I break down how robotic knee replacement works, who benefits most, and the honest truth about costs and limitations.
Don't let knee pain limit your life. Read the full article to see if robotic knee replacement might be right for you. Read More >> www.corycalendinemd.com/post/benefits-of-robotic-total-knee-replacement

08/21/2025

Modern Knee Replacement - Random Facts:
🔹Total knee replacement surgery was first performed in 1968
🔹There are now >200 knee implant size variations (vs. 3-4 sizes just 30 yrs ago)
🔹The MAKO robotic system weighs 460 kg
🔹25–40% of knee replacement patients notice intermittent clicking during the first 6 mos
🔹Metal used is a titanium or cobalt-chromium based alloy; plastic is an ultra high molecular weight polyethylene
🔹Average age for knee replacement has decreased from 68.9 yrs (2000) to 66.2 yrs
🔹Research reveals that >90% of replacement knees still function well after 15 yrs
🔹22-33% of people gain more than 2.5% of their body weight and have a lower chance of losing weight in the 1-2 years after the procedure
🔹Up to 44% of retired football players will need joint replacement surgery
🔹Total knee replacement utilization (US) has more than doubled since 2008
👇 SHARE your Knee Replacement experience & insights.
Appreciate your feedback on “Preparing for Knee Replacement: Your Complete Guide to Faster Recovery, Better Outcomes, and Confident Healing” - Available Now🙏

03/03/2025

🦿Knee Replacement Trends 2025
📊 Key Trends according to latest American Joint Replacement Registry data:
• Average patient age remains stable at 67.6 yrs for total knee and 64.5 yrs for partial knee arthroplasty
• Length of stay has significantly decreased from 2.9 dys (2012) to 1.1 dys (2023) for TKA, and from 2.2 to 0.5 dys for
• Posterior stabilized designs remain most common but are declining, while medial congruent designs show increasing popularity
• Cementless fixation usage has grown from 1.9% (2012) to 21.8% (2023)
• Highly cross-linked polyethylene is the most used bearing material (45.9%), followed by antioxidant polyethylene (39.5%)
• Robotic assistance has increased >6-fold in the past 6 yrs to 15.9% of procedures
• Patellar resurfacing remains predominant but has gradually declined from 95.9% (2012) to 87.0% (2023)
• Home discharge rates have increased w/ 96.3% of patients now discharged home
• Infection remains most common reason for revision, followed by mechanical loosening
• Unicompartmental represents ~3.7% of all knee replacement but shows significantly higher revision rates than total knee arthroplasty
• Cruciate retaining/ultracongruent implants are associated with reduced rates of cumulative revision vs posterior stabilized designs
The data is clear — knee replacement surgery continues to become less invasive, more precise, and more patient-friendly. If knee pain is limiting your life, today’s innovations may offer better solutions than ever before.
👇 SHARE your experience & insights

03/01/2025

Trends in Hip Replacement 2025
🔹Mean procedure count per surgeon has increased to 44.3 procedures annually, with an interquartile range of 6-62 procedures
🔹Avg patient age remains stable at 65.6 yrs
🔹Length of stay has significantly ⬇️ from 2.9 days in 2012 to 1.1 days in 2023
🔹Ceramic femoral head usage continues to ⬆️ and is now the most commonly used material, accounting for over 80% of cases in recent yrs
🔹Dual mobility bearing use has leveled off at around 8-10% of cases after yrs of steady increase
🔹Cementless femoral fixation remains dominant, though cemented fixation showed a slight ⬆️ to 5% in 2023, the highest since inception
🔹Cemented femoral components showed significantly lower revision rates due to periprosthetic fracture compared to cementless components
🔹Robotics utilization has almost tripled since 2017, now used in 6.6% of cases
🔹Home discharge rates have ⬆️ significantly, with 92% of patients now discharged directly home
🔹36mm heads continue to be the most commonly used femoral head size, though larger heads (≥40mm) have shown slight increases
🔹Use of conventional polyethylene has nearly vanished (

02/24/2025

What (3) words would you use to describe “Being a doctor...”?
Sir James Paget (1814-1899), English Surgeon/Pathologist: As a young medical student at St. Bartholomew’s Hospital, he made his first groundbreaking discovery - identifying the parasitic worm causing trichinosis. Despite enduring 7 yrs of financial hardship, making only £15 annually, he persevered by writing medical journals and cataloging museum specimens. Paget’s keen observational skills and methodical approach led to numerous landmark discoveries, including Paget’s disease of bone and Paget’s disease of the breast. His masterwork “Lectures on Surgical Pathology” (1853) established pathology as a cornerstone of modern medicine, emphasizing microscopic examination in understanding diseases.
Known for his exceptional eloquence and teaching ability, Paget served as surgeon to Queen Victoria and became a baronet in 1871. Together with Rudolf Virchow, he laid the foundation for scientific medical pathology, bridging the gap between laboratory research and clinical practice.
💡 Fun fact: In 1886, following a famous murder trial acquittal, Paget made his memorable quip: “Now that she has been acquitted for murder and cannot be tried again, she should tell us in the interest of science how she did it!”
Paget’s legacy lives on through his contributions to medical education, surgical practice, and his enduring message about the unity of science and medicine.
“Being a doctor offers the most complete and constant union of those three qualities which have the greatest charm for pure and active minds—novelty, utility, and charity.”

Address

3000 Edward Curd Lane
Franklin, TN
37067

Opening Hours

Monday	8am - 5pm
Tuesday	8am - 5pm
Wednesday	8am - 5pm
Thursday	8am - 5pm
Friday	8am - 5pm

Telephone

+16157912630

Website

https://www.corycalendinemd.com/

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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.