– See: Ligaments of the Wrist – Discussion: – dorsal incision is centered of Lister’s tubercle; – dorsal capsule is reflected in line with the skin incision; – radial capsule is reflected from the scaphoid to its waist; – reduce lunate and scaphoid w/ K wire; – joysticks inserted in a dorsal to palmar direction; … Read more
– Biomechanics of Screw-Plate Angle – Checklist – Sliding Hip Screw w/ Unstable Frx – High Angle Plates – Low Plate Angle – Nail Placement in Femoral Head and Neck – Screw Length – Sliding Screw Fixation in Femoral Neck Frx – Sliding Screw Fixation … Read more
– Technique: – Application of Plate: – if a small incision has been used, it may be difficult get the plate underneath the skin; – if so, remove the plate from the assembly device, slip it underneath the vastus and then reattach the … Read more
– Discussion: – device that is placed at lower angle has less force working parallel to sliding axis & more force working perpendicular to sliding axis. – this perpendicular force acts to jam or bend the device, thereby preventing impaction. – device that is placed at lower … Read more
– Discussion: – sinus tarsi is the depression found on the lateral side of the tarsus and is distal to and on the same level as the lateral malleolus; – on incision of the structures overlying the sinus tarsi – namely, lateral portion of the inferior extensor retinaculum, interosseous talocalcaneal ligament and reflection … Read more
– Sizing of the Tibial Component: – generally, the tibial component is either larger or at least the same size as the femoral component; – femoral overhang is a significant source of postoperative TKR pain; – ref: Overhang of the Femoral Component in Total Knee Arthroplasty: Risk Factors and Clinical Consequences – … Read more
– See: Complex Dislocations of the MP Joint – Discussion: – two types of dorsal dislocation occur in MP joint: simple & complex; – simple dislocations: may be reduced by closed reduction, – complex dislocations: usually cannot be reduced primarily; – results from hyperextension injury; … Read more
– Discussion: – cause of discomfort in anterior aspect of the knee; – caused by persistent traction at the cartilaginous junction of patella & patellar ligament, usually at inferior patellar pole; – usually seen in an active preteen boy who complains of activity-related pain; – differential diagnosis: … Read more
– See: Stance Phase: – Discussion: – single limb stance comprimises 38% of gait cycle; – during single limb stance, the ankle begins to dorsiflex by motion of tibia over the fixed foot; – early phase: – subtalar joint is pronated inorder to absorbe … Read more