Ortho Preferred Malpractice Insurance

MRI in Cervical Fractures

– See:   – MRI Spine: Discussion;   – Role of CT in C-spine Injuries: – Discussion:     – for visualizing soft tissue and neural elements, & unsuspected disc herniations in presence of cercial spine fractures;     – disc herniation may indicate disruption of anterior or posterior longitudinal ligament;          – MRI … Read more

MRI of AVN of Femoral Head

– See:      – MRI of Hip:      – Johns Hopkins – MRI Evaluation of AVN – Discussion:     – magnetic resonance imaging is probably the most accurate imaging modality for dx of AVN of femoral head;     – MRI imaging is also used to outline the area of involvement;   … Read more

Mosaicplasty and Cartilage Transplants for Chondral Injuries of the Knee

– Mosaicplasty:     – refers to the technique of harvesting small circular (4-8 mm) autogenous grafts from the knee from non wt bearing regions of the knee, and transplanting the grafts in a mosaic pattern until the osteochondral defect is filled;              – typically the grafts are harvested from the … Read more

MP Joint Locking

– Discussion:     – index finger is most commonly involved, often found in older pts w/degenerative arthritis; – Etiology:     – muscular contracture or trauma;     – collateral ligament or volar plate tethering on prominent MP head or osteophyte (on either side or volar aspect of metacarpal head);     – torn palmar … Read more

Mobilization of Rotator Cuff for Repair

– Discussion: (RTC menu)     – mobilization is often required for massive tear;     – simply closing extensive tear will not suffice if atrophied muscles are not contracting adequately and if excessive tensions placed on repaired cuff cause reinjury;     – repair of good quality rotator cuff tissue is esp important in achieving an optimal result; … Read more

Middle Column: the posterior half of the vertebral body

– 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

Mid-Carpal Instability

– 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

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