Ortho Oracle - orthopaedic operative atlas

Anatomic Axis

Discussion anatomic axis of femur is approx 6 deg of valgus from mechanical axis or 9 deg of valgus from vertical axis w/ variations according to body habitus; anatomic axis of tibia is in approx 2-3 deg of varus from mechanical axis; lines that intersect the tibia and the femur intersect at knee; this angle averages 6 deg

Amputation Menu

– Amputations in the Diabetic Patient – Above the Knee Amputation: – AKA prosthetics – Basic Science: – Below Knee Amputation: – amputation following fractures of the tibia – pediatric BKA: – BKA prosthetics – prosthetic feet – Foot and Ankle Amputation – Syme’s Amputation – Transmetatarsal Amputation – Chopart Amputations – Pediatric Amputations – … Read more

Amputations in the Diabetic Patient

– See: – diabetic foot menu – amputation menu – osteomyelitis in the diabetic patient – Discussion: – amputation should be considered for any diabetic patient w/ advanced changes (Charcot joints, multiple ulcers,  vascular pathology) who has who has undergone a surgical debridement which could not logically leave the patient w/ a functional foot; – vascular considerations: … Read more

Allograft Bone Patellar Bone Reconstruction

– Discussion:     – general discussion of allograft tissue:     – as pointed out by Harner et al. (1996), subjective knee scores were slightly better for knees having ACL – bone patellar bone allograft (as compared to BPB autograft patients)            – objective ratings included normal (or nearly normal) … Read more

Allografts

– see bone graft menu – Discussion of Allografts:     – see autograft menu and bone healing:      – allografts are most indicated when bone grafting is required along with need for mechanical structural support;     – morselized bone graft:     – structural bone grafts:      – fresh allografts            – generally … Read more

Allis’s maneuver: for Hip Dislocation

Gravity Method of Stimson Bigelow’s Maneuver: for Posterior Hip Dislocation Closed Reduction Discussion patient is placed in the supine position; knee is flexed to relax the hamstrings; assistant stabilizes the pelvis and applies a lateral traction force to the inside of the thigh; longitudinal traction is applied in line w/ axis of femur, and the hip is … Read more

Addition of Antibiotics to Cement

 – See: Infection Menu and Wound Management: and Local Antibiotic Delivery for Septic Joints – Discussion:   – basic science:        – useful in treating biofilm;        – references:              – In vitro characteristics of tobramycin-PMMA beads: compressive strength and leaching.                 – Antibiotic bone cement in THA. An in vivo comparison of the elution properties of … Read more

Acute on Chronic Slip

Clinical Presentation pts recounts h/o aching in hip, thigh, or knee (from chronic slip) along w/ h/o sudden severe pain (from concomitant acute slip); Treatment pin placement: reduction may be obtain by gentle skeletal traction in flexion & internal rotation; – forceful manipulation must be avoided.

ACL Graft Fixation

 – Discussion:     – see Arthrex, Mitek, Linvatec, Smith-Nephew     – in choosing a fixation technqiue consider the need for the following:              – circumferential (360 deg) healing of graft against tunnel wall (interference screws do not permit this);              – bioabsorbable material … Read more