Specialists

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Shoulder Instability

Basics Description Because of the shoulder’s extensive ROM, it is prone to instability. The term encompasses a spectrum of disorders of varying degree, direction, and cause. Instability should be distinguished from laxity. Laxity is the symmetric translation of the humeral head over the surface of the glenoid without symptoms. Instability occurs when the degree […]

Shoulder Anatomy and Examination

Basics Description Bones: Glenohumeral joint: The humeral head articulates with the glenoid fossa of the scapula. Stabilized by the glenohumeral ligaments capsule and rotator cuff muscles The labrum of the glenoid deepens the joint and enhances stability. AC joint: The acromion process of the scapula articulates with the distal clavicle. Suspends the arm and […]

Lumbar Spine Anatomy and Examination

Basics Description The spine is a complex system composed of bony elements, articulations, ligaments, muscles, spinal cord, and peripheral nerves divided into anterior, middle, and posterior columns. The vertebral body, lamina, and the spinous process protect the spinal cord. The lumbar spine contains 5 vertebrae and 5 nerve roots. Most lumbar spines have a […]

Knee Examination in the Child

Basics Description It is important, during a knee examination, to keep in mind the child’s age and to understand the age-specific pediatric knee disorders. Congenital hyperextension or dislocation of the knee: Varies from simple hyperextension to anterior dislocation of the tibia on the femur Hyperextended knee presents at birth. A hyperextensible knee resolves spontaneously, […]

Knee Anatomy and Examination

Basics Description Anatomy of the knee consists of compartments, bones, menisci, ligaments, muscles, and nerves. 3 compartments: Medial, lateral, and patellofemoral Bones: Patella: Serves as fulcrum to aid knee extension Medial and lateral menisci: Fibrocartilaginous structures in medial and lateral femorotibial compartments Aid in joint lubrication and nutrition and in load distribution across articular […]

Cervical Spine Anatomy and Examination

Basics Description Anatomy: The cervical spine contains 7 cervical vertebrae, from which arise 8 nerve roots. The normal cervical spine has a lordotic curvature. Intact functional cervical vertebrae are vital because they protect both the spinal cord and the vertebral artery. Of the 8 nerve roots that arise from the cervical vertebrae, all but […]

Acromioclavicular Joint Separation

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Basics Description AC joint injuries range from a mild sprain of the supporting ligaments to a complete separation of the AC joint. The AC joint is a diarthrodial joint formed by the distal clavicle and the medial facet of the acromion. Interposed in the joint is a fibrocartilaginous disc, which helps distribute the […]