Study on Compensated Rotator Cuff Tear Arthropathy by Orthopedic Surgeon and Stem Cell Specialist, Wade McKenna, DO Published in Techniques in Shoulder and Elbow Surgery

Study on Compensated Rotator Cuff Tear Arthropathy by Orthopedic Surgeon and Stem Cell Specialist, Wade McKenna, DO Published in Techniques in Shoulder and Elbow Surgery

Dallas-Fort Worth, Texas (PRWEB) November 08, 2015

A Study by orthopedic surgeon and stem cell specialist, Dr. Wade McKenna of the Riordan-McKenna Institute entitled, “Outpatient Treatment of Compensated Cuff Arthropathy Using Inlay Arthroplasty With Subscapularis Preservation” is published in the December edition of Techniques in Shoulder and Elbow Surgery.

Picture of Wade McKenna, DO

Dr. McKenna is co-founder and chief medical officer of the Riordan-McKenna Institute of Regenerative Orthopedics (RMI) in Southlake, Texas. Co-author of this work is Troy Chandler, PA-C from North Central Texas Orthopedics in Decatur, Texas.

Rotator cuff tear arthropathy sometimes develops in patients who have had a very large, long-standing rotator cuff injury. In CTA, changes in the shoulder due to the rotator cuff tear cause arthritis and lead to destruction of joint cartilage.

The Shoulder HemiCAP® restoration procedure is designed to match the shape and contour of individual patient’s cartilage and joint surface and be an ideal alternative to shoulder replacement. It simply recreates a smooth surface where the cartilage has worn away — similar to a filling for a tooth cavity.

The study examined a consecutive series of 50 CTA patients treated by Dr. McKenna from 2007 to 2015. It concluded that resurfacing the humeral head (shoulder bone) using a HemiCAP shoulder implant preserves the joint and avoids bone loss and complications associated with more invasive procedures like stemmed arthroplasty or total shoulder replacement.

Furthermore, the HemiCAP procedure disrupts the degenerative cycle of early-stage CTA, effectively addresses causes of pain, and avoids further muscle imbalance. The latter is achieved by a special deltoid muscle-splitting approach that leaves the tendon under the shoulder bone intact.

All of these advantages resulted in accelerated recovery and rehabilitation for patients.

“We are very pleased with the positive outcome of this study. Although we specialize in non-surgical stem cell interventions at RMI, sometimes, as in the case of CTA, surgical intervention is indicated. That’s why it’s important for patients to seek out an experienced orthopedic surgeon who, in addition to orthopedic expertise, is well versed on the latest advances in stem cell therapy. A surgeon needs both to know when stem cell therapy may be effective and when surgery, perhaps augmented with biologics like bone marrow aspirate concentrate (BMAC) and AlphaGEMS amniotic tissue product, is a better option,” commented Dr. McKenna.

About Riordan-McKenna Institute (RMI)

RMI specializes in non-surgical treatment of acute and chronic orthopedic conditions using *AlphaGEMS flowable amniotic tissue allograft and bone marrow aspirate concentrate (BMAC) that is harvested using the patented BioMAC bone marrow aspiration cannula. Common conditions treated include meniscal tears, ACL injuries, rotator cuff injuries, runner’s knee, tennis elbow, and joint pain due to degenerative conditions like osteoarthritis. RMI also uses AlphaPATCH amniotic membranes as part of a complete wound care treatment regimen.

RMI also augments orthopedic surgeries with BMAC and AlphaGEMS to promote better post-surgical outcomes.

BMAC contains a patient’s own mesenchymal stem cells (MSC,) hematopoietic stem cells (CD34+), growth factors and other progenitor cells. AlphaGEMS is composed of collagens and other structural proteins, which provide a biologic matrix that supports angiogenesis, tissue growth and new collagen during tissue regeneration and repair.

*AlphaGEMS and AlphaPATCH products are produced by Amniotic Therapies Inc. from donated amniotic tissue after normal healthy births. For more information about AlphaGEMS, please visit:

801 E. Southlake Blvd.

Southlake, Texas


Tel: (817) 776-8155

Toll Free: (877) 899-7836

Fax: (817) 776-8154

For the original version on PRWeb visit:

Bone Marrow Aspiration Cannula

BioMAC logo


A revolutionary new system for Regenerative Cell Therapy

Harvesting bone marrow is now fast and easy with the power-driven Bio-MAC® Bone Marrow Aspiration Cannula from Biologic Therapies.

Available in 25mm, 45mm, 60mm, 80mm and 105mm lengths, the Bio-MAC’s varying lengths allow for bone marrow draws throughout the anatomy. In addition to the iliac crest, the proximal tibia, proximal humerus and calcaneus are now viable sites for easy bone marrow aspiration.

Layout 2
The Bio-MAC Bone Marrow Aspiration Cannula provides a safe, fast and efficient means of bone marrow harvest for providers of point-of-care Regenerative Cell Therapy. This therapy has been proven to be a highly effective treatment for bone, muscle, tendon, ligament and cartilage injuries. Plus, bone marrow is an excellent source for the cells and growth factors that are responsible for the healing and tissue regeneration process.The Bio-MAC’s cannula contains eight large, smooth, bevel-edged fenestrations, which allow for gentle bone marrow aspiration. The Bio-MAC’s unique design also incorporates a proprietary plunger component that when inserted down the cannula creates a void (frac) where bone marrow pools. Together, the fenestrations and plunger-created void provide an approximately 120% greater draw area resulting in higher aspiration efficiency and an easier draw when compared to other devices.



Another leading feature of the Bio-MAC is the gentle insertion process. Unlike most traditional bone marrow aspiration devices, which are manually manipulated with brute force or a mallet, the Bio-MAC can be inserted with any standard surgical drill. This delivery system minimizes the potential for microfracturing, bruising and subsequent pain from ‘hammering’ other marrow aspiration cannulas into bone.



Important features of the Bio-MAC include:

  • Surgical grade 304 Stainless Steel metal components
  • Driver hub constructed from polyetherimide, which is superior to other polycarbonate products on the market
  • Nickel plated rare earth magnet holds hub securely to driver during drilling insertion
  • All components incorporate press-fit construction to eliminate hub breakage and separation during use
  • Diamond-shape trocar cutting tip for fast, gentle drilling into bone
  • All stainless steel components are mirror polished for added lubricity and ease of insertion.
  • Cannula assembly & plunger withstand 300 pounds of pull for five minutes without stainless steel components separating from polyetherimide driver hubs. Other companies’ devices separate at just 15 pounds of pull.
  • Cannula assembly & plunger withstand 25 inch-pounds of torque without stainless steel components twisting in driver hubs. Other devices twist at just 5 inch-pounds.

Products are for export only, not for distribution in the United States.