Stemcell Safarivet

Dr Garner and Stem Cell Safari their agents, employees and representatives do not market, produce or provide stem cell therapy or stem cell related products. Information provided is for clinical interest for veterinarians only.


Medial Shoulder Instability In Dogs

Medial Shoulder Instability (MSI) in dogs occurs when the shoulder joint becomes unstable and unable to hold the weight of the dog. Therefore, MSI is due to injury of the supporting tissues of the shoulder joint; which includes the medial glenohumeral ligament, the tendon of the subscapularis muscle, the fibrocartilaginous labrum and the tendon of the biceps brachii. Tears in the medial (inside) joint capsule are often present on arthroscopy.


Medial shoulder instability dog symptoms include an obvious lameness that may come and go, shortened stride and muscle atrophy from lack of use.

Dogs at Risk

This condition is a leading cause of shoulder pain in dogs; particularly athletic, field trial or agility (medium to large breed) dogs. However, it is more common in younger male dogs that are less than 5 years of age and dogs with hip dysplasia.

Common Treatment Protocol

Severe cases of medial shoulder instability in dogs may need surgical stabilization with artificial prosthetic ligaments, however, most cases can be managed with regenerative therapies and rehabilitation.

Stem Cell Treatment

Recent cases of MSI in dogs have been successfully managed with a combination of regenerative therapies, such as stem cell injections and Platelet Rich Plasma (PRP).

Stem Cell Therapy for Medial Shoulder Instability (MSI)


Rehabilitation is usually started about 3 weeks post injection of stem cells. Therapeutic exercises that cause activation of the extrinsic and intrinsic muscles of the shoulder and core body muscles are utilized. Different surfaces are used for balance and exercise, such as wobble board activity. More advanced rehab includes Cavaletti training and weave poles in slow motion. Underwater treadmill training is used for strength training and to prevent muscle atrophy.

Note worthy: DogLeggs has developed a Shoulder Stabilization System (harness), as well as a Dog Shoulder Vest. A veterinary prescription is required to order these products.

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