– See: Ligamentous Instability: – Discussion: – compressive forces are transmitted thru the posterior vertebral body wall onto the two Uncovertebral joints; – there is no significant disk material in this middle column; – tensile forces are w/ stood by posterior longitudinal ligament and the posterior Annulus fibrosus; … Read more
– Discussion: (see: dynamic instability); – type of non dissociative carpal instability; – capitolunate joint has high potential for instability, since it is mainly stabilized only by radiocapitate ligament (and captiotriquetral ligament, to a lesser degree); (see wrist ligaments); – may result from malreduced radial styloid frx, or any … Read more
– See: Orthopaedic Infection Menu: and risk factors for TJR infection – Pre-Admission Considerations: – removal of hardware prior to joint arthroplasty: – High incidence of early periprosthetic joint infection following THA with concomitant or previous hardware removal – Hospital and OR Considerations: – perioperative oxygen – normothermia: – Perioperative normothermia to … Read more
– See: Forefoot and Midfoot Stress Frx – Discussion: – march frx usually occurs in shaft of second or less often in the third metatarsal; – stress frx of 5th metatarsal represents a distinct fracture; – in runners stress frxs occur most often in metatarsal neck, … Read more
– See: Extra-articular Thumb Metacarpal Fractures – Discussion: – interosseous muscles & intrinsically strong carpometacarpal capsular and interosseous ligaments provide intrinsic stability to extra-articular fractures at the metacarpal bases; – mechanism of frx of little CMC: – stability of CMC joint derives from articulation w/ carpal … Read more
– Adult: 50-150mg PO/IM/SQ q3-4hr prn Pain; (75mg IM Demerol =10mg Morphine) 1-2 mg/kg/dose PO/IM/IV (including Peds q 6 hr) – PO: peak effect at 2 hrs; – IM/IV: onset at 2-5 min; Peak at 1 hr; lasts 2-3 hrs. – IV administration must be slow in diluted solution; – Peds: 1 mg/kg/dose IV/IM q2-4hr; 1.0-1.5 mg/kg/dose … Read more
– See ABG – See Diff Dx: Anion Gap / Non Anion Gap – By definition: primary decrease HCO3 concentration. – Simple Met acidosis, Stimulates Ventilation, Decreasing pCO2 – Base Deficit: – indicator of blood loss, resuscitation, and mortality in trauma patients, and it is a more sensitive marker of hypovolemia than vital signs; … Read more
Frx Treatment Methods: Casting of Tibial Fractures External Fixators Plating of Tibial Fractures: Intramedullary Nails for Tibial Fracture: Amputation following Fractures of the Tibia Blood Supply Blounts Disease Bone Grafting for Tibial Fracture Bowing of Tibia: Anterolateral Bowing: Posteromedial Tibial Bowing: Casting of Tibial Fractures Classification of Open Tibial Fractures: Compartment Syndrome following Tibial … Read more
– Discussion: Zone IV: – extends from distal end of transverse retinacular ligament to proximal margin; – combined nerve – tendon procedure may be delayed for 21 days if wound is contaminated, if crushing trauma has occurred; – median nerve management: (nerve repair) – lacerations of flexor tendons within … Read more
– See: – Bicondylar Fractures and Type V Fractures: – Split Fractures: – Surgical Approach: Medial Compartment: – Type IV Fractures: – Total Depression Fracture: – X-ray: – if knee is unstable (greater > 5 deg instability), stress … Read more