Healthcare News
Impact of Reverse Shoulder Arthroplasty Design and Patient Shoulder Size on Moment Arms and Muscle Fiber Lengths in Shoulder Abductors
Reverse shoulder arthroplasty (RSA) increases the moment arm of the deltoid, however there is limited knowledge on the accompanying changes in muscle architecture that play a role in muscle force production. The purpose of our study is to use a geometric shoulder model to evaluate the anterior deltoid, middle deltoid, and supraspinatus regarding 1) differences in moment arms and muscle-tendon lengths in small, medium, and large native shoulders, and 2) impact of three RSA designs on moment arms, muscle fiber lengths, and force-length (F-L) curves.
Why Does My Shoulder Hurt?
Your shoulder is a ball and socket joint and very mobile. It may hurt for many reasons, from injury and overuse to chronic conditions or diseases. You need to know the cause to get effective treatment.
Causes of Collarbone Pain: Everything You Need to Know
Collarbone pain is usually caused by an injury, such as a fracture or joint separation. However, your collarbone (clavicle) can also hurt because of health conditions like arthritis or even certain sleeping positions.
What are dead hangs? What are the shoulder pain risks, and how do I do them safely?
While dead hangs may be OK for people with good upper-body strength and no shoulder problems, they can be risky for others. People with shoulder hypermobility (excessive motion of the shoulder) or shoulder instability (such as those who easily dislocate their shoulder) may need to be cautious. The shoulder, by design, is a relatively unstable joint. It has a large ball-type bone called a humerus, which sits in a relatively small socket called a glenoid.
Isolated Primary Latarjet Procedures for Anterior Shoulder Instability Results in High Rates of Graft Resorption and Glenohumeral Degenerative Changes with Low Rates of Failure at a Minimum 2-Year Follow-Up: A Systematic Review
To evaluate the incidence of postoperative complications after an isolated primary Latarjet procedure for anterior shoulder instability at a minimum 2-year follow-up.
