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  • Author or Editor: Erica J. Secor x
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Abstract

OBJECTIVE To biomechanically compare modified and standard laryngoplasty constructs in monotonic load to failure and cyclic loading.

SAMPLES 41 equine cadaveric larynges.

PROCEDURES Laryngoplasty constructs were created by use of a standard technique on one side and a modified technique (with a toggle to anchor suture to the arytenoid cartilage) on the other side. For monotonic loading, laryngoplasty constructs were prepared and suture ends attached to a load frame; constructs then were loaded until mechanical failure. Mean load at failure and failure modes were compared between constructs. For cyclic loading, arytenoid cartilages were maximally abducted and constructs were circumferentially loaded for 10,000 cycles. Loss of arytenoid abduction was evaluated every 500 cycles with a subjective grading scale and objective change in rima glottidis cross-sectional area.

RESULTS In monotonic loading, modified laryngoplasty constructs failed at a significantly higher mean ± SD load (191 ± 29 N) than did standard laryngoplasty constructs (91 ± 44 N). None of the modified laryngoplasty constructs failed by suture pull-through of the muscular process of the arytenoid cartilage, whereas most of the standard laryngoplasty constructs failed in that manner. In cyclic testing, 11 of 20 standard laryngoplasty constructs failed or achieved Dixon grade 3 abduction, whereas 0 of 20 modified laryngoplasty constructs failed. Modified laryngoplasty constructs lost significantly less rima glottidis cross-sectional area in circumferential testing, compared with loss for standard laryngoplasty constructs.

CONCLUSIONS AND CLINICAL RELEVANCE The modified laryngoplasty technique was biomechanically superior to the standard laryngoplasty technique in this ex vivo study.

Full access
in American Journal of Veterinary Research

Abstract

OBJECTIVE To report complication rates following elective arthroscopy in horses and determine whether postoperative complication rates are higher for outpatient procedures, compared with inpatient procedures.

DESIGN Retrospective cohort study.

ANIMALS 357 client-owned horses that had undergone 366 elective arthroscopic procedures between January 2008 and February 2015.

PROCEDURES Medical records were retrospectively reviewed. Data collected included signalment, travel time to the hospital, clinical signs, joints treated, lesions diagnosed, medications administered, anesthesia and surgery times, details of the procedure (including closure method and surgeons involved), and hospitalization status (inpatient or outpatient). Inpatients were horses that remained hospitalized overnight, and outpatients were horses that were discharged in the afternoon of the day of surgery. The collected data were analyzed along with follow-up information to identify factors associated with postoperative complications and potentially associated with hospitalization status.

RESULTS Data were collected on 366 elective arthroscopic procedures (outpatient, n = 168 [46%]; inpatient, 198 [54%]). Complications that occurred included bandage sores, catheter problems, colic, diarrhea, postoperative discomfort, esophageal impaction, fever, incisional drainage, postanesthetic myopathy, persistent synovitis, persistent lameness, septic arthritis, and osteochondral fragments not removed during the original surgery. None of these complications were associated with hospitalization status (outpatient vs inpatient). However, Standardbreds were overrepresented in the outpatient group, and anesthesia and surgery times were longer for the inpatient group.

CONCLUSIONS AND CLINICAL RELEVANCE Results suggested that outpatient elective arthroscopy in healthy horses could be performed safely and without a higher risk of complications, com pared with similar procedures performed on an inpatient basis.

Full access
in Journal of the American Veterinary Medical Association