Fluoroscopic Categorization of Cementless Acetabular Component Positioning.

Objectives:  The purpose of this study was to evaluate a fluoroscopic method of angle of lateral opening (ALO) categorization based on identification of the visible portion of a pre-existing, circular recess within the metal shell of the BioMedtrix BFX acetabular component, which projects as an ellipse at clinically relevant ALO values. Our hypothesis was that there will be an association between the actual ALO and the categorization of ALO based on identification of the visible portion of the elliptical recess on a lateral fluoroscopic image at clinically relevant values.

Study Design:  A custom plexiglass jig was fitted with a two-axis inclinometer and a 24 mm BFX acetabular component attached to its tabletop.

Measurement of Acetabular Component Position in Total Hip Arthroplasty in Dogs: Comparison of a Radio-Opaque Cup Position Assessment Device Using Fluoroscopy with CT Assessment and Direct Measurement.

Objectives:  The aim of this study was to compare measurements of angle of lateral opening (ALO) and version determined using a radioopaque cup position assessment device imaged with fluoroscopy to measurements obtained by CT and direct measurement in a cadaveric model. Our null hypothesis was that there would not be any difference in the angles measured by the techniques.

Methods:  Six cadavers were implanted with BFX acetabular components.

Acute toxoplasmosis following renal transplantation in three cats and a dog.

Three cats and 1 dog that had undergone renal transplantation because of end-stage renal disease were examined because of complications 3 to 6 weeks after surgery. One cat died prior to treatment of the complications; Toxoplasma cysts were found in sections of the renal allograft, and Toxoplasma tachyzoites were found in other organs. The other 2 cats and the dog died despite treatment, and protozoal cysts, as well as tachyzoites, were identified in other organs but not within the allografts, suggesting that reactivation of latent infection following immunosuppression was the most likely cause of disseminated toxoplasmosis.

Evaluation of a novel bioprosthetic heart valve incorporating anticalcification and antimicrobial technology in a sheep model.

Background And Aim Of The Study: The St. Jude Medical (SJM) Epic valve has been designed to diminish the risk of prosthetic valve endocarditis by the use of silver-coated polyester fabric, and to inhibit dystrophic calcification by the use of ethanol pretreatment.

Methods: A 20-week juvenile sheep mitral valve implant model was used to determine safety and efficacy of the device, as well as the rate of silver release and degree of dystrophic calcification.

Rapid intraoperative construction of autologous small caliber blood vessels.

Autologous pericardium, briefly tanned in glutaraldehyde, is an excellent biomaterial when used in various cardiac procedures, including repair and replacement of heart valves. A generalized lack of calcification and an absence of inflammatory response in these combined experiences has led the authors to consider the use of treated autologous pericardium for the construction of substitute small caliber blood vessels. Rapid, intraoperative construction of a vascular graft from autologous pericardium, briefly treated in 0.

A mucosal apposition technique for ureteroneocystostomy after renal transplantation in cats.

Renal transplantation is a successful treatment for terminal renal failure in cats. However, in the initial clinical study, there was a frequent occurrence of obstruction of the implanted ureter at the bladder wall or stoma. This resulted in the use of a modified "drop-in" technique that had proved effective in the prevention of obstruction in five normal cats.

Long-term renal and hematologic effects of uninephrectomy in healthy feline kidney donors.

To assess long-term hematologic and renal effects associated with a solitary kidney, 16 healthy cats undergoing uninephrectomy for kidney donation between May 1987 and January 1991 were evaluated by use of physical examination, CBC, serum biochemical analysis, urinalysis, and urine protein:creatinine ratio. Results of preoperative CBC, serum biochemical analysis, and urinalysis were within reference limits in all donors. Median age at surgery and at follow-up evaluation was 34 and 72 months, respectively.