SURGICAL MANAGEMENT OF A TRAUMATIC ELBOW LUXATION WITH CIRCUMFERENTIAL SUTURE PROSTHESES IN A RABBIT (ORYCTOLAGUS CUNICULUS)

A 2-year-old dwarf rabbit was referred for right forelimb lameness of 1-week duration. Physical examination and radiographic findings were consistent with an elbow luxation. Manual reduction under anesthesia was unsuccessful in correcting the luxated joint. A surgical approach was recommended to repair the rabbit elbow luxation. Transcondylar, transradial, and transulnar tunnels were drilled from lateral to medial with 2 suture prostheses being placed, 1 from the radius to the humerus and 1 from the humerus to the ulna. Analgesia was provided and the patient was reevaluated on days 2, 7, and 14 after the procedure. The luxation was reduced and no recurrence was noted a year following the surgical procedure. Circumferential suture prostheses, recently described with no reported postoperative complications in cats, can be used successfully in rabbits as evidenced in this case report.     

Grinding dental prosthesis using partial sintered zirconia ceramics

The properties and cutting performance of partial sintered Y2O3-stabilized tetragonal zirconia polycrystal (Y-TZP) have been introduced. Then, the CAD/CAM technological chain in the field of dental restoration, the basic grinding theory and technical equipment which are necessary for dental restoration have also been analyzed. Finally, an example for grinding molar crown using partial sintered zirconia has been provided, the specific processing are divided into two steps:1)using standard cylindrical dental diamond burs which is Ф1.6 mm to fabricate the molar crown with grinding parameters(spindle speed 40 000 r/min, grinding depth 0.2 mm, feed rate 300 mm/min)that have high material removal rate;2)using dental diamond burs with ball-end cone wheel, whose diameter is 0.8 mm, with spindle speed 40 000 r/min, grinding depth 0.06 mm, feed rate 100 mm/min, to fine grinding the surface of molar crown. After processing, the surface quality of the molar crown has been tested high and is consistent with the requirements of dental restoration.