Ortho Oracle - orthopaedic operative atlas

Ossification of Soft Tissue and Periosteum

– See:   – Diff Dx: Hypercalcemia   – Diff Dx: HyperPhosphatemia   – Approaches To Differential Diagnosis In Musculoskeletal Imaging: Soft Tissue Calcifications – Discussion:     – calcium hydroxyapatite can be deposited in periarticular soft tissues or within joints;     – in either event the disease may be monoarticular or polyarticular;   … Read more

Orthotic Management of Blounts Disease

– Discussion:     – principle of orthotic management in infantile tibia vara is alteration of abnormal compressive forces so that normal growth will resume &            genu varum will be corrected;     – patient age:           – historically, bracing has been the treatment of choice for a child 14 … Read more

Orthotics for the Foot

– See: Metatarsalgia: and Running Injuries – Discussion:     – functional anatomy:              – normal foot during gait will become supple by eversion to allow for wt bearing during heel strike, and will become a rigid lever during push off by heel inversion;              – in … Read more

Ortolani’s Test: for Congenital Hip Dislocation

– Discussion:     – early dx by postnatal screening w/ Ortolani or Barlow’s Test is essential to detect hip instability or dislocation;     – strictly interpreted, the Ortolani sign is the palpable sensation of the gliding of the femoral head in and out of the acetabulum;           – femoral … Read more

Os Acromiale

  – Discussion:     – results from failure of an anterior acromial ossification center to fuse to the acromial process;     – caused by failure of one of three ossification centers;            – ossification centers appear at age 15 and should fuse by age 22-25;     – subtypes: (from … Read more

Os Odontoideum

– See: Development and Anomalies of the Axis: – Discussion:     – dens may be completely absent, hypoplastic, or incompletely fused to body of C2 (lesion called os odontoideum)     – the os odontoideum is smaller than the normal dens but size may vary;            – the base of the … Read more

Os Trigonum / Posterior Talar Impingement

– See: – Diff Dx: Posterior Ankle Pain – Fractures of Posterior Talar Process – Discussion: – accessory bone found just posterior to talus (accessory ossification center of the posterior process of the talus); – it may be considered a non united portion of the lateral tubercle; – os trigonum is round, oval, or triangular … Read more

Orthopaedic Infections

– Types of Orthopaedic Infections:         – bacterial / parasite menu: / antibiotic menu        – studies:  – WBC, ESR, C-reactive Protein, Radioisotope scanning         – risk assessment for infection:                 – risk ractors for infection in TJR; – Methods to Prevent Infection    – Addition of … Read more

Orthopaedic Joint Infections: Intra-articular Antibiotics

– Discussion:      – properties of antibiotics to cement / properties of vancomycin in cement     – THR infections / – TKR Infections     – septic arthritis     – specific organisms:             – gram negative bacilli: – gram negative cocci: – gram positive bacilli: – gram positive cocci  – Technique and Dosing:     – … Read more

Orthopaedic Manifestations of Child Abuse

– Discussion:     – child abuse occurs most often under the age of 3 years;     – when child abuse goes unrecognized, the mortality rate may be as high as 5%;     – common patterns for abuse:            – unwitnessed spiral fractures            – fractures occuring prior to walking age;     – common fractures:            … Read more