Nader Motallebizadeh

The biceps brachii, commonly known as the biceps, is located at the front of the upper arm bone. This muscle becomes prominent when flexing the arm and primarily functions to bend the elbow joint. Additionally, it contributes to the stability of the shoulder joint. How Muscles Attach to Bones Muscles need to be connected to […]

Overview of Sprengel’s Deformity Sprengel’s Deformity, a congenital condition, causes the scapula (shoulder blade) to be positioned higher than its normal location. Developmental Process of the Scapula in the Fetus Initially located in the neck region during early fetal development, the scapula gradually moves to its final position above the chest by the third month

Frozen shoulder, or adhesive capsulitis, is a condition where an individual experiences severe restriction in shoulder movements accompanied by pain. This condition is more common in individuals aged between 40 and 60 years and is more prevalent in women. Possible Causes of Frozen Shoulder The exact cause of a frozen shoulder is not clear, but

Shoulder instability means that the head of the upper arm bone can easily move out of its socket. This issue arises due to the shoulder joint’s high range of motion in all directions. Anatomy and Biomechanics of the Shoulder The shoulder joint is formed by three bones: the scapula (shoulder blade), humerus (upper arm bone),

In this article from the Limb Lengthening Center of Iran, we will discuss Acromioclavicular Joint Osteoarthritis. Introduction: Understanding the Acromioclavicular Joint The acromioclavicular joint, located between the collarbone and the shoulder blade in the shoulder area, is a unique joint covered with cartilage. It plays a crucial role in shoulder movements. Anatomy of the Joint

Shoulder osteoarthritis, also known as shoulder wear or osteoarthritis, is a condition caused by the wear and tear and deterioration of the cartilage in the shoulder joint. This disorder leads to pain and limited mobility in the joint. Understanding the Shoulder Joint In this context, the shoulder joint refers to the glenohumeral joint. This type

Shoulder joint replacement, also known as Shoulder Arthroplasty (SA), is a surgical procedure aimed at reducing pain and restoring mobility in patients who have reached the final stage of shoulder arthritis or have suffered a severe shoulder fracture. This surgery not only alleviates pain but also helps in restoring movement, strength, and function of the

This article from the Limb Lengthening Center of Iran discusses the causes of shoulder pain and ways to treat it. Shoulder pain can arise from various reasons. Sometimes, home remedies like massage or ice packs can alleviate shoulder pain; however, if the pain persists for several days or weeks, it’s concerning, and consulting an orthopedic

In this article from the International Limb Lengthening Center of Iran, we will discuss the topic of shoulder sternoclavicular joint injury. The shoulder comprises several joints, among which the joint between the collarbone (clavicle) and the breastbone (sternum) is of significant importance. This joint can become dislocated due to impacts on the shoulder. Anatomy of

This article from the Limb Lengthening Center of Iran focuses on the Shoulder Acromioclavicular Joint Injury. The shoulder comprises several joints, one of the most important being the joint between the collarbone and the shoulder blade. This joint, known as the acromioclavicular joint, can dislocate due to impacts on the shoulder. Anatomy of Shoulder Joints