Orthopedic Performance Institute

11/14/2025

Whether it’s from arthritis or injury, hearing that you may need a hip replacement can feel overwhelming. Concerns about recovery time, post-surgical pain, and loss of independence are common, but advances in surgical techniques continue to improve outcomes and patient experiences.

At the Orthopedic Performance Institute, Dr. Matthew Dwyer and Dr. Christopher Phelps routinely perform the anterior approach to hip replacement, a minimally invasive technique that provides many patients with:
- Less damage to major muscles
- Reduced postoperative pain
- Faster recovery and return to movement
- Lower risk of hip dislocation

Unlike traditional hip replacement methods, the anterior approach allows surgeons to work between muscles rather than cutting through them. This means less muscle repair, earlier mobility, and often a shorter hospital stay, helping patients return home and regain independence sooner.

To learn more about minimally invasive hip replacement, call (210) 545-7171 to schedule an evaluation.

11/11/2025

This Veterans Day, we salute the heroes who have served and protected our great nation. At Orthopedic Performance Institute, we are proud to care for the veterans of San Antonio and the surrounding communities. Your strength and perseverance embody the spirit of resilience we see every day in our patients.

Thank you for your service and sacrifice. We honor you today and always.

11/10/2025

National Nurse Practitioner Week is celebrated November 9–15, 2025, recognizing the vital role nurse practitioners play in delivering quality healthcare across America. This week honors the advanced practice registered nurses who provide comprehensive, patient-centered care to patients and families in communities nationwide.

At the Orthopedic Performance Institute, we’re proud to celebrate John J. Arringdale, FNP, who has been providing exceptional orthopedic care for more than a decade. As a board-certified Family Nurse Practitioner, John brings a strong background in surgery, emergency medicine, and orthopedics. Our patients love John! His expertise and compassion shine through in every patient interaction—combining evidence-based care, clinical experience, and intuitive understanding to help patients on their road to recovery.

Join us in thanking John and nurse practitioners everywhere for their dedication and contributions to better health!

11/08/2025

November 8 is National X-ray Day!

X-ray technology has transformed how orthopedic specialists diagnose and treat bone, joint, and muscle conditions. At Orthopedic Performance Institute, X-rays are an essential part of evaluating injuries, planning treatments, and monitoring recovery.

Each of our Stone Oak locations offers on-site X-ray imaging for your convenience--and for precision-guided injection therapy, our specialists also utilize fluoroscopic technology to deliver targeted, effective care.

From diagnosis to recovery, OPI uses today’s most advanced imaging innovations, all built on the foundation of the X-ray discovery that changed medicine forever.
Learn more or schedule your appointment at (210) 545-7171.

11/07/2025

11/05/2025

At the Orthopedic Performance Institute, Dr. Christopher Phelps and Dr. Matthew Dwyer perform knee joint replacements using the Subvastus Approach, a technique designed to protect and preserve your muscles for a smoother recovery.

Unlike traditional approaches that may require cutting part of the quadriceps muscle, the Subvastus technique carefully works beneath the muscle instead of through it.

This means:
- Less pain after surgery
- Faster recovery
- Better strength and motion
- Quicker return to walking and daily activities

While this advanced method is more technically demanding, it offers real advantages for eligible patients--helping you get back on your feet with less discomfort and improved mobility.

To schedule a knee replacement evaluation, call (210) 545-7171.

11/01/2025

Daylight Saving Time Reminder!

Don’t forget to “fall back” this weekend! As we set our clocks back an hour, it’s a great time to also reset healthy routines that keep your body strong and safe.

Here are a few tips to help your body adjust and stay injury-free this season:
- Get plenty of sunlight during the day to support healthy sleep and Vitamin D production—important for strong bones and muscles.
- Prioritize rest. The time change can throw off your internal clock, so aim for consistent sleep to keep your energy and balance steady.
- Stay active and stretch. Movement helps maintain bone strength, joint flexibility, and coordination—key to preventing falls and injuries.
- Stay hydrated. Cooler weather can make it easy to forget water intake, but hydration supports joint health and recovery.

At Orthopedic Performance Institute, we’re here to help you move safely and stay strong through every season.

10/31/2025

Happy Halloween from all of us at Orthopedic Performance Institute! Our team had a spooktacular time dressing up and celebrating together today.

10/31/2025

Happy Halloween from Orthopedic Performance Institute!

Stay safe, have fun, and remember, if your bones give you a scare, we’ve got you covered!

10/30/2025

At the Orthopedic Performance Institute, Sports Medicine Specialists Dr. Justin Riojas and Dr. Alexandra Matthews are experts in caring for adolescent and teen athletes — helping them recover safely and return stronger.

Did you know? About 90% of all sports injuries can be treated without surgery.
Our doctors specialize in nonsurgical treatments and collaborate with physical and occupational therapists to design a personalized plan for every athlete.

These may include:
• Injections or medication management
• Physical & occupational therapy
• Casts, splints, or braces
• Sport-specific injury prevention strategies

Every athlete is unique — and so is their care. Trust our team to help your young athlete recover and get back to doing what they love most. Learn more: orthopedicperformance.com

10/24/2025

Shoulder joint replacement has become increasingly common, and is now as effective as knee and hip replacement surgery to help patients get back to their normal activities without pain. According to the Journal of Shoulder and Elbow Surgery, 175,000 to 350,000 procedures per year may be performed by 2025. Orthopedic Performance Institute surgeons, Dr. Matthew Dwyer and Dr. Christopher Phelps, routinely perform shoulder replacement surgery. Click the image below to learn more about shoulder replacement surgery.

Board Certified Orthopedic Surgeons and Specialists Serving San Antonio, Bulverde, and Boerne. We specialize in both Adult & Pediatric orthopedic treatments - including Sports Medicine. Total Shoulder Replacement Surgery: Benefits, Risks, and What to Expect Orthopedic Performance