– See: Ligaments of the Wrist – Discussion: – lunotriquetral interosseous ligament tear – relatively frequent occurance; – scapholunate dissociation – less frequent occurance; – ulnocarpal impaction syndrome (which can also mimic TFCC tear); – … Read more
– See: Ligaments of the Wrist – Exam of TFCC Injury: – tenderness is usually centered about dorsal depression distal to ulnar head, or it may be localized around the ulnar styloid; – patients may also note tenderness between the triquetrum and the ulnar styloid; – … Read more
– See Rotator cuff: – anatomy: – origin: middle half of the lateral scapular border; – insertion: inferior aspect of greater tuberosity of the humerus, capsule of shoulder joint; – action: – lateral rotation of humerus at the shoulder (responsible for 45% of power of external rotation); … Read more
– See: Abductors of the Shoulder : Origin: dorsal surface of inferior angle of the scapula on the lower 1/3 of scapular axillary border; Insertion: medial lip of bicipital groove of humerus; medial to latissimus dorsi tendon; Action: adducts and medially rotates humerus at the shoulder; extends the shoulder joint; Reversed origin insertion action: … Read more
– Discussion: – theory of tension band wiring: – modified anterior tension band technique is indicated for both transverse and comminuted fractures of the patella; – for maximal strength, wires are placed on tension surface of bone (anterior surface), as compared to circumferential cerclage wiring; … Read more
– See: Iliotibial Band Syndrome – General Anatomy: – origin: – anterior iliac crest outer lip, anterior border of the ilium, outer surface of anterior superior iliac spine; – insertion: – iliotibial band of fascia lata on lateroanterior aspect of thigh, … Read more
– Discussion: – tendons have limited blood supply; – each tendon receives its vascular supply from segmental vessels arising from surrounding peritenon & extending from forearm to midportion of the proximal phalanx; – in digits, however, blood supply reaches flexor tendons thru vincula; – these are folds of mesotenon … Read more
Discussion overuse syndrome or tendinosis involving the region of the lateral humeral epicondyle; most often the origin of the ECRB displays an abnormal vascular proliferation and focal hyaline degeneration; ref: Anatomic Factors Related to the Cause of Tennis Elbow EDC may also be involved in some cases; ref: The role of the extensor digitorum communis … Read more
– See: Technique of Free Tendon Grafting – Discussion: – indications for tenolysis include failure to improve ROM after 3 months; – if patient has had previous flexor tendon repair, surgery should be delayed until 6 months post op (inorder to avoid tendon rupture); – consider using a wrist block … Read more
– Discussion: – core suture techniques; – strength of flexor tendon repair is proportional to the number of sutures crossing the repair; – note that a average force of 20 N required for active digital flexion in humans and most tendon repair techniques need initial strength of more than … Read more