– See: – Safe Zone of Pin Insertion Wires Insertion Techniques – Wire Characteristics: – in general 1.5 to 1.8 mm wires need no incision or drill sheath, but larger, 2.0 wires may be inserted w/ sheath through incision; – larger diameter wires will increase … Read more
– Exposure of the Subscapularis: – the upper portion of the subscapularis tendon is exposed by partial release of the CA ligament off the coracoid, by placement of a Homan retractor directly above the coracoid, and by abduction and external rotation of the arm; – the upper portion of the … Read more
– Discussion: – up to 80 % of patients w/ traumatic DJD may expect a good to excellent result at 5 years; – up to 30 % of patients will sustain a major complication over 5 years, which often will require and additional operation; – indications: – end stage rheumatoid arthritis; – severe intractable pain … Read more
– Discussion: – see rotational alignment in TKR: – rotational mal-alignment may lead to patellar malalignment and varus-valgus instability; – valgus knee may have a lateral condyle which is deficient posteriorly; – therefore, use of the posterior condyles as a reference, may lead to relative internal rotation of the … Read more
– See: – Lateral Retinacular Release: – Patella in TKR; – Discussion: – this is one of the most common causes of failed knee replacement; – position of each TKR components will determine success of patellar component: – no patellar prosthesis will track correctly if the … Read more
– Theoretical Considerations: – distance from posterior reesction plane to anterior resection plane must equal the internal dimension of femoral component being used; – this cut must be made at a distance from the anterior cut equal to inner anterior-posterior dimension of femoral component used; … Read more
– See: – Enhancement of Fixator Stability – Ilizarov Menu – Ring characteristics – Safe Zone of Pin Insertion – Foot Inclusion – Synthes Hybrid Fixator – Wire Insertion Technique – Discussion: – in the report by Paley D and Maar DC (2000), … Read more
– See: throwing injuries: and elbow throwing injuries – Phases of Throwing: – wind up – early cocking: deltoid and rotator cuff are active; – late cocking phase: – muscle activity: – shoulder is placed in … Read more
– See: Three Part Fracture – Discussion: – includes large proximal fragment created by frx of surgical neck of humerus; – some capsular tissue is almost always retained on large head fragment ensuring its viability; – if head fragment is displaced anteriorly, greater tuberosity is usually frxed, whereas lesser tuberosity … Read more
– See: Three Part Fracture Dislocation and Four Part Fracture – Discussion: – tuberosity frag + displaced surgical neck fragment; – unstable shafts may be driven into mass of deltoid muscle & may be anterior to the proximal fragment; – poor bone contact will lead to delayed or nonunion in most cases; – subtypes: – greater … Read more