Polarus Implant Features A patented array of 5.0 mm proximal holes to allow for secure fixation of the most common multi-part proximal humeral fractures. Each screw is designed with deep cancellous threads for added holding power. Strategic screw locations help avoid the axillary nerve and other key structures. Distal interlocking is achieved with up … Read more
– Discussion: – plating techniques and synthese products – primarily indication for plates and screws is a displaced intra-articular frx of tibia, involving either knee or ankle; – main disadvantage is skin necrosis and resultant infection; – malunions and mal-non-unions are other indications; – Operative Techniques for Proximal Tibial Fractures: … Read more
– Considerations: – see plate fixation theory and bone healing with plate fixation; – candidates for ORIF are humeral shaft frx w/ no comminution w/ enough of an oblique component to allow lag screw fixation; – in contrast, comminuted transverse fractures may be less satisfying for fixation, and may … Read more
– Anatomy: – plantar fascia: – plantar muscles of the foot: are arranged in four layers w/ the FDB lying most superficially, just under plantar fascia; – medial and lateral branches of tibial nerve pass superficial to abductor hallucis and the quadratus plantae (w/ exception of 1st branch of lateral … Read more
– Discussion: – one of several causes of heel pain; – the pain is located somewhat more distally than in other causes of heel pain syndrome – symptoms include gradual onset of pain at the origin of the plantar aponeurosis and 1 cm distal to this area … Read more
Origin: there are 3 plantar interossei arising from the base and medial plantar surface of the 3rd, 4th, and 5th metatarsal bones. Insertion: medial side of the base of the 1st phalanx of the same toe and into the tendons of the Extensor digitorum longus. Action: Flex the proximal and extend the distal phalanges … Read more
– Discussion: (see pilon frx discussion) – fibula is usually fractured above the joint line; – some authors will avoid ORIF of the fibula in these injuries if there is excessive fibular comminution (ie poor chance of good fixation) and if there is excessive varus of the articular surface (ORIF would accentuate the varus); … Read more
– Anatomy: – origin: anterior surface of sacrum between and lateral to anterior sacral foramen, capsule of sacroiliac articulation, margin of the greater sciatic foramen, and sacrotuberous ligament; – insertion: superior border of greater trochanter of femur; – action: external rotation of hip & … Read more