Histomorphological and torque removal comparison of 6 mm orthodontic miniscrews with and without surface treatment in New Zealand rabbits.

Aim: The purpose of this study was to assess the difference of removal torque values (RTV) and the bone-to-implant contact (BIC) between the sand-blasted, large grit, and acid-etched (SLA) surface-treated and the machined surface (MA) miniscrews.

Material And Methods: Miniscrews used in this study were 6mm long with a diameter of 1.5mm.

Coating of carbon fiber-reinforced polyetheretherketone implants with titanium to improve bone apposition.

Carbon fiber-reinforced polyetheretherketone (CF/PEEK) is a thermoplastic composite biomaterial exhibiting properties suitable for load-bearing orthopedic implants. However, the hydrophobic surface of CF/PEEK implants induces the deposition of a peri-implant fibrous tissue capsule preventing bone apposition. However, if bone apposition was improved, the use of CF/PEEK in orthopedics could be increased as it has many advantages compared with metallic implants.

Cardiopulmonary effects of diazepam-ketamine-isoflurane or xylazine-ketamine-isoflurane during abdominal surgery in foals.

Objective: To evaluate cardiopulmonary effects of anesthetic induction with diazepam and ketamine or xylazine and ketamine, with subsequent maintenance of anesthesia with isoflurane, in foals undergoing abdominal surgery.

Animals: 17 pony foals.

Procedures: Foals underwent laparotomy at 7 to 15 days of age and laparoscopy 7 to 10 days later.

Accuracy of fragment positioning after TPLO and effect on biomechanical stability.

Objective: To compare tibial plateau rotation after tibial plateau leveling osteotomy with the radiographically planned rotation and to determine the effect of translations and rotations of the tibial plateau fragment on the biomechanical stability of the construct under cyclic loading.

Study Design: Experimental biomechanical study.

Animals: Cadaveric canine pelvic limbs (n=10).

Comparison of locking and conventional screws for maintenance of tibial plateau positioning and biomechanical stability after locking tibial plateau leveling osteotomy plate fixation.

Objective: To compare locking screws with conventional screws inserted in the tibial plateau fragment for reduction and stability of the construct after tibial plateau leveling osteotomy (TPLO), using a locking TPLO plate.

Study Design: Experimental biomechanical study.

Animals: Cadaveric canine pelvic limbs (n=8 pairs).

Effect of surface topography on removal of cortical bone screws in a novel sheep model.

Difficulty in removing implants used in trauma patients can be a complication, and increased bone-implant adhesion likely is a major contributing factor. In vitro studies have shown that surface morphology of implant materials has the ability to influence cellular responses, with polished surfaces decreasing the potential for mineralization. This study examined the effect of polishing commercially pure titanium (cpTi) and the titanium alloy TAN on the removal torque and percentage bone-implant contact in cortical and cancellous bone of sheep.

Epidural migration of new methylene blue in 0.9% sodium chloride solution or 2% mepivacaine solution following injection into the first intercoccygeal space in foal cadavers and anesthetized foals undergoing laparoscopy.

Objective: To determine the relationship between epidural cranial migration and injectate volume of an isotonic solution containing dye in laterally recumbent foal cadavers and evaluate the cranial migration and dermatome analgesia of an epidural dye solution during conditions of laparoscopy in foals.

Animals: 19 foal cadavers and 8 pony foals.

Procedures: Foal cadavers received an epidural injection of dye solution (0.

Comparison of intraosseous and intravenous infusion of technetium Tc 99m pertechnate in the distal portion of forelimbs in standing horses by use of scintigraphic imaging.

Objective: To describe and compare the distribution of technetium Tc 99m (99mTc) pertechnate following intraosseous or i.v. injection (with or without use of a tourniquet) in the distal portion of the forelimb in standing horses.

Comparison of two laparoscopic suture patterns for repair of experimentally ruptured urinary bladders in normal neonatal calves.

Objective: To compare 2 laparoscopic suture patterns for repair of experimentally ruptured urinary bladders in normal neonatal calves.

Study Design: Experimental surgical study.

Animals: Thirty male Holstein calves.

Comparison of two laparoscopic treatments for experimentally induced abdominal adhesions in pony foals.

Objective: To compare laparoscopic dissection with-laparoscopic dissection combined with abdominal instillation of ferric hyaluronate gel for the treatment of experimentally induced adhesions in pony foals.

Animals: 12 healthy pony foals.

Procedure: A serosal abrasion method was used to create adhesions at 4 sites on the jejunum (day 0).

Comparison of the retrobulbar and Peterson nerve block techniques via magnetic resonance imaging in bovine cadavers.

Objective: To use magnetic resonance (MR) imaging to describe and compare the anatomic distribution of a lipid contrast medium injected via the retrobulbar and Peterson nerve block techniques in heads of bovine cadavers.

Design: Original study.

Sample: 5 grossly normal heads obtained from cattle at necropsy.

Cylindrical press-fit osteochondral allografts for resurfacing the equine metatarsophalangeal joint.

Objective: To investigate the feasibility of resurfacing the equine fetlock joint using cylindrical, orthotopic, press-fit, osteochondral allografts.

Study Design: Experimental study.

Animals: Ten mature, mixed-breed horses.

Outcome of epidural catheterization for delivery of analgesics in horses: 43 cases (1998-2001).

Objective: To determine reasons for epidural catheter placement among horses examined at a veterinary teaching hospital, efficacy of epidural administration of analgesics, duration of catheter placement, reasons for catheter removal, and complications encountered.

Design: Retrospective study.

Animals: 43 horses.

Evaluation of laparoscopic adhesiolysis for the treatment of experimentally induced adhesions in pony foals.

Objective: To assess the efficacy of laparoscopic adhesiolysis in the treatment of experimentally induced adhesions in foals.

Animals: 8 healthy pony foals.

Procedure: Celiotomy was performed and adhesions created at the jejunoileal junction and at sites 0.