Acromioclavicular Joint
|

Acromioclavicular Joint

The acromioclavicular joint, frequently referred to as the AC joint, is an essential anatomical structure situated on the top of the shoulder where the lateral end of the clavicle (collarbone) articulates with the acromion process of the scapula. This joint is critical to the stability and operation of the shoulder complex, allowing for a wide range of motion while preserving the structural integrity of the shoulder girdle. The AC Joint, which joins the scapula and clavicle, is the major articulation that separates the upper extremities from the trunk. Introduction One of the four joints that form the shoulder complex is the AC joint, also known as the articulioclavicular joint. The primary articulation that interrupts the upper limbs from the trunk and connects the scapula to the clavicle is the AC Joint. The…

subtalar-jont
|

Subtalar Joint

Introduction The subtalar joint, located just below the ankle joint, plays a critical role in foot and ankle biomechanics. It connects the talus (a bone in the foot) with the calcaneus (heel bone), enabling the complex movements of inversion and eversion, which allow the foot to adapt to uneven surfaces. As a synovial joint, this…

ankle joint
|

Ankle Joint

Ankle joints are complex mechanisms that play important roles in allowing movement in the lower extremities and providing stability. Several ligaments support the ankle’s overall stability by joining the bones and ensuring optimal joint function. The anterior talofibular ligament (ATFL), posterior talofibular ligament (PTFL), and calcaneofibular ligament (CFL) comprise the lateral (outside) portion of the ankle joint. These ligaments contribute lateral support to the ankle by attaching the talus and calcaneus, two-foot bones, to the fibula, one of the two lower leg bones. Ankle ligament overstretching or taking produces a sprain. Ankle sprains are…

knee joint
|

Knee Joint

Introduction The knee joint is one of the largest and most complex joints in the human body, playing a crucial role in our ability to move and bear weight. It connects the thigh bone (femur) to the shin bone (tibia) and includes other structures like the kneecap (patella) and cartilage, which help in smooth movement….