Specialists

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Radial Head Fracture

Basics Description Radial head fractures: Occur in the proximal 2-3 cm of the radius Are intra-articular fractures (The radial head articulates with capitellum.) Classification : Type 1: Nondisplaced fractures Type 2: Partial head fractures Type 3: Complete head fractures Radial head fractures often are associated with other injuries to the elbow or the forearm. […]

Posterior Interosseous Nerve Entrapment

Basics Description PINS occurs when muscles innervated by the posterior interosseous nerve are affected secondary to entrapment of the posterior interosseous nerve by 1 of several structures. The related, but separate, radial tunnel syndrome is characterized by pain and weakness on the lateral side of the elbow after activities with forceful elbow extension or […]

Osteochondritis Dissecans of the Knee

Basics Description A pathologic joint entity of localized bone necrosis with overlying cartilage injury Osteochondritis dissecans primarily affects the knee, but it is also seen in the hip (in late Legg-Calve-Perthes disease), elbow, and ankle. Osteochondritis dissecans occurs primarily in the 2nd decade of life, but it also is seen in children and older […]

Olecranon Fracture

Basics Description The olecranon: Is the proximal bony projection of the ulna at the elbow Articulates with the trochlea of the distal humerus to form the ulnohumeral portion of the elbow joint: This articulation is responsible for flexion and extension of the elbow joint. Is the insertion site of the triceps tendon Contraction of […]

Little League Elbow

Basics Description Little League elbow refers to a group of injuries about the elbow that arise in children and adolescents (ages 7-15 years) from repetitive throwing or use of a racquet or bat. Younger patients (7-11 years old) in that group often have an injury of the physis, whereas older adolescents (15-19 years old) […]

Intercondylar Elbow Fracture

Basics Description Intra-articular fracture of the distal humerus, which may occur with a supracondylar fracture Biomechanically and anatomically, the distal humerus forms a triangle composed of a medial column and a lateral column that support the articular surface of the trochlea. The trochlea articulates with the ulna. The capitellum is the part of the […]

Hemophilia

Basics Description This disorder of clotting factor results in easy bleeding. Secondary effects may occur in any system (most importantly brain, joint, muscle, and nerve) secondary to bleeding. Depending on its severity, it usually is diagnosed in early childhood. Classification: Severe: <1% clotting factor activity Moderate: 1-5% clotting factor activity Mild: >5% clotting factor […]

Elbow Dislocation

Basics Description Dislocation of the elbow mostly results from trauma. Posterior dislocation is most common. It most frequently involves people <20 years of age. Rarely, elbow dislocation can occur in elderly patients after a fall. Most elbow dislocations occur at the ulnohumeral joint. Classification: Usually refers to the position of the ulna relative to […]

Elbow Arthritis

Basics Description The elbow can be affected by inflammatory and noninflammatory arthropathies. Regardless of the underlying pathologic process, elbow arthritis generally presents with pain on ROM and loading of the affected joint. Epidemiology Incidence Uncommon Primary osteoarthritis accounts for 1-2% of all elbow arthritis; the remainder are inflammatory or posttraumatic. Can occur in any […]

Elbow Anatomy and Examination

Basics Description Bones Ulnohumeral joint: The trochlea of the humerus articulates with the trochlear notch of the proximal ulna. The olecranon process of the ulna lies posterior to the joint. Allows for elbow flexion and extension Radiohumeral joint: The capitulum of the humerus articulates with the radial head. Allows for forearm supination and pronation […]