The Hip

Anterior Approach to the Radial Shaft: (Henry)

– See:        – Anterolateral Approach to Forearm        – Forearm Flexors        – Plating Techniques        – Radial Shaft Fractures: Discussion – Discussion:      – anterior approach of Henry utilizes interval between brachioradialis (radial nerve) & pronator teres (or FCR distally, which are innervated by the median nerve);      – … Read more

Anterior Approach to Shoulder

– See: Anterior Approach to the Humerus Axillary Approach: Posterior Approach Posterior Approach to Humerus Surgical Approach for Proximal Humeral Fractures Positioning and Draping: supine or beach chair; small soft bolster is placed beneath the shoulder blades to protract the shoulder; head is stabilized to prevent hyperextension and subsequent brachial plexus palsy; place patient in … Read more

Anconeus

  origin: posterior surface of lateral epicondyle of humerus; insertion: lateral side of olecranon process and posterior surface of proximal portion of ulna; action: extension and pronation of the forearm at the elbow; nerve supply: radial, C5, C6; synergist: triceps brachii The aconeus muscle flap: its anatomy and clinical application.

Aneurysmal Bone Cyst

– Discussion:     – non-neoplastic expansile lesion consisting of blood filled spaces separated by connective tissue septa containing bone or osteoid              and osteoclast giant cells     – etiology unknown     – may be primary or secondary;     – an uncommon expansile osteolytic lesion of bone consisting of a proliferation of … Read more

Anatomy of Olecranon

      – Discussion:     – together w/ proximal portion of the coronoid process, olecranon forms greater sigmoid notch of the ulna, a deep depression that serves as            articulation w/ trochlea that serves as the articulation w/ trochlea which allows motion only in anteroposterior plane and provides       … Read more

Anatomy of Proximal Humeral Physis

Discussion proximal humerus ossifies from four centers: head, shaft, and both tubercles, which unite at age 19 to 20; frx in adult life tend to occur along old epiphyseal lines; depression between tubercles, bicipital groove, contains long head of biceps; tubercles also serve as points of insertion for rotator cuff, w/ subscapularis inserting on lesser … Read more

Anatomy and Sites of Compression of Cubital Tunnel

Anatomy & Sites of Compression of Cubital Tunnel – Discussion: – cubital tunnel extends from medial epicondyle to olecranon; – it serves as the major contraint for the ulnar nerve as it passes behind the elbow; – w/ flexion the cubital tunnel becomes taunt, and with extension the cubital tunnel becomes lax; – aponeurotic roof … Read more