Ortho Preferred Malpractice Insurance

Methods to Prevent Infection

– 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

Metacarpal Shaft Frx

    – Discussion:     – displacement of metacarpal shaft fractures is prevented by intermetacarpal ligaments and intrinsic muscles;     – the border metacarpals (thumb, index, and little) are not supported as well as the ring and long metacarpals and are therefore more likely to displace;     – effect of shortening:     … Read more

Metacarpal Extra-articular Base Frx

– 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

Metacarpal Head Fractures

– See: MP joint injuries – Discussion:     – often badly comminuted;     – consider a short period of splinting followed by early active motion;     – this may mold the articular surface by using the soft tissue sleeve;     – early motion will also prevent joint stiffness, but loos of … Read more

Metacarpal Joint Injury

  – carpometacarpal fracture dislocation   – dislocation of MP joint:           – complex dislocations of the MP joint           – simple dislocations of the MP joint           – thumb MP joint dislocation   – metacarpal head frx   – metacarpal neck fracture   – metacarpal shaft fractures   – MP … Read more

Metacarpal Neck Frx

– See: metacarpal frx menu – Discussion:     – frxs through neck & shaft of metacarpals usually angulate w/ apex dorsal, displacing the metacarpal head into the palm;     – ring and little neck frx: (see boxer’s frx);             – corresponding CMC joints are mobile (in contrast to … Read more

Meperidine/Demerol

– 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

Melone Classification for Distal Radius Fractures

– Components: Shaft, Radial Styloid, and Dorsal Medial and Palmar Medial Parts; – Type I:     – colles frx equiv: undisplaced and minimally comminuted; – Type II:     – die punch frx: unstable w/ moderate to severe displacement;     – similar to Mayo class II: displaced frx involving radioscaphoid joint;     … Read more

Meniscii

 – Discussion:     – semilunar cartilages are extensions of tibial articulation of knee;     – w/o menisci, tibial articulation is incongruous with the femur;      – microscopic features      – vascular anatomy      – anatomy:            – medial meniscus                   – … Read more

Laceration Injuries at the Wrist

– 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