Subscapularis strain / shoulder instability

Overview

## Overview Strain of the subscapularis compromises medial shoulder stability and can allow the shoulder to pop laterally. It is seen in horses that slip or splay. Signs include shoulder instability, lateral clicking, forelimb lameness worse on uneven ground, and axillary swelling. ## Causes Acute abduction or trauma. ## Diagnosis Palpation, gait evaluation, and ultrasound. ## Treatment Rest and rehabilitation. Severe instability may need surgical stabilization. ## Recovery and Prognosis Fair to good for strains. More guarded if frank subluxation occurs. ## Prevention Safe footing.

Signs & Symptoms

shoulder joint instability; lateral popping or clicking; forelimb lameness worse on uneven ground; axillary swelling

Affected Structures

Frequently Asked Questions

What is Subscapularis strain / shoulder instability in horses?

## Overview Strain of the subscapularis compromises medial shoulder stability and can allow the shoulder to pop laterally. It is seen in horses that slip or splay. Signs include shoulder instability, lateral clicking, forelimb lameness worse on uneven ground, and axillary swelling. ## Causes Acute abduction or trauma. ## Diagnosis Palpation, gait evaluation, and ultrasound. ## Treatment Rest and rehabilitation. Severe instability may need surgical stabilization. ## Recovery and Prognosis Fair to good for strains. More guarded if frank subluxation occurs. ## Prevention Safe footing.

What are the signs of Subscapularis strain / shoulder instability?

shoulder joint instability; lateral popping or clicking; forelimb lameness worse on uneven ground; axillary swelling