TJ Ridley, MD

04/02/2026

So honored!

Twin Cities Orthopedics provides comprehensive orthopedic specialty care at over 40 convenient clinics in the Twin Cities and Western Wisconsin.

03/20/2026

See full video here!

https://youtu.be/hgOrXHVAoQ4?si=SqLlCBjmuVXq8ONv

03/19/2026

Complex repair of a large rotator cuff tear using the patient’s own biceps tendon to augment the repair, similar to a SCR (superior capsular reconstruction).
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In very large and/or chronic rotator cuff tears, the tissue can become retracted and scarred, making mobility of the tissue difficult. Healthy, mobile tissue is needed for a successful rotator cuff repair.
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If the native rotator cuff tissue cannot be repaired, there are limited options to restore the shoulder without moving to a shoulder replacement. These options mainly include accepting a partial repair, superior capsular reconstruction (SCR), tuberoplasty and balloon implantation. Many of these have relatively unpredictable results; and most studies show that a primary repair is more reliable and successful than these options.
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In this video I demonstrate a large and retracted rotator cuff tear for which I utilized the patients own biology (their biceps tendon) to help with the repair, providing a structural bridge for the rotator cuff, as well as augmenting the biology with their own healthy tissue. Addiontally, the biceps can act like the SCR, helping to keep the humeral head depressed which can allow for less tension on the rotator cuff while it’s healing.
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10/15/2025

Rapid fire posterior labral repair in the shoulder

06/05/2025

https://www.facebook.com/share/p/16bmLX6czE/?mibextid=wwXIfr

05/13/2025

Testimonials Tuesday!

04/29/2025

The “cam” deformity of the femoral neck is the leading cause of hip impingement. This is essentially an area of extra bone that creates impaction and friction between the femoral head and acetabulum. What then gets caught in the middle of this is the labrum, which sits at the edge of the acetabulum. This bony impingement is what creates the soft tissue injury of a labral tear in many cases. 

During hip arthroscopy for hip impingement and labral tear, the Cam resection is a vitally important part of the procedure to eliminate the bony impingement 

04/17/2025

Revision knee arthroplasty provides an excellent opportunity to showcase the capabilities of modern robotic technology. These procedures often involve significant challenges, including managing bone loss, selecting appropriate implants, and achieving optimal motion and stability of the joint. Robotic assistance can significantly enhance the efficiency, accuracy, and safety of these complex surgeries.

In this video, I demonstrate a revision case in which a medial unicompartmental knee arthroplasty (partial knee replacement) is converted to a total knee arthroplasty (full knee replacement). As is often the case with partial knee replacements, the remaining compartments of the knee can continue to degenerate over time. This patient presented with worsening pain due to progressive arthritis in the lateral and patellofemoral compartments, indicating the conversion to a full knee replacement.

Robotic technology plays a critical role in these revision procedures by guiding implant selection and placement, with or without the use of augments. It ensures precise alignment and positioning of components, contributing to a well-balanced and stable knee.

Revision knee arthroplasty provides an excellent opportunity to showcase the capabilities of modern robotic technology. These procedures often involve signif...

03/25/2025

Testimonial Tuesday!

03/03/2025

Heterotopic Ossification excision 😳
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This patient had been dealing with pain and loss of range of motion despite extensive PT and non surgical treatments. Initial work up with X-rays demonstrated this very large calcification anterior to his hip. MRI revealed this was within his re**us femoris.
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After seeking a few opinions this patient reached out virtually and after discussion decided to travel from out of state to have this removed. This was able to be completely removed while preserving his re**us as well as concomitantly decompressing his subspine.
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This calcification, otherwise known as heterotopic ossification, likely formed from a strain of his re**us or avulsion fracture of the anterior iliac spine (he did not recall a specific injury but played a high level of football into his mid 20s). The HO at the time of surgery was very mature and well defined. He was placed on NSAIDs postoperatively to lower the risk of recurrent heterotopic ossification formation.
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