In Vitro Comparison of Two Techniques for Suture Prosthesis Placement in the Muscular Process of the Equine Arytenoid Cartilage

Rossignol, Fabrice; Perrin, Roland; Desbrosse, Francis; C, Elie

doi:10.1111/j.1532-950x.2005.00111.x

Cited by 34 publications

(54 citation statements)

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“…Auch Mikrofissuren im Knorpel reduzieren seine Resistenz gegenüber dem Implantat. Zwar stellte Rossignol et al (2006) keinen signifikanten Unterschied der Knorpelhaltekraft in Abhängigkeit von der Implantationstechnik (mit einer einfachen Nadel oder einer Vorbohrung des Knorpels) fest. Da sich jedoch in vorgebohrten Aryknorpeln signifikant weniger Mikrofissuren fanden, wurden alle ArykAbb.…”

Section: Diskussionunclassified

“…Viele Untersuchungen bezüglich der Haltekraft und Elastizität des Knorpellager-Implantat-Komplexes befassten sich ausschließlich mit isolierten Processi musculares (Boswell et al 2000, Herde 2001, Riedel 2006, Rossignol et al 2006und Boening et al 2007), oder es wurden auf beide Implantatlager gleichzeitig Zugkräfte ausgeübt, bis das erste, meist der Processus muscularis, versagte . Dixon et al (2003) hingegen beobachtete bei fünf von zehn Pferden, die einen postoperativen Abduktionsverlust zeigten, das Einschneiden der Fadenprothese in den dünneren Ringknorpel.…”

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Laryngoplasty with metallic implants - biomechanical tension test of the arytenoid and cricoid of the horse using metallic prostheses

Robertz¹,

Ohnesorge²,

Boening³

2009

PHK

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Section: Diskussionunclassified

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Laryngoplasty with metallic implants - biomechanical tension test of the arytenoid and cricoid of the horse using metallic prostheses

Robertz¹,

Ohnesorge²,

Boening³

2009

PHK

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“…The more lateral suture was passed through the muscular process, 10 mm rostral and 10 mm ventral to the insertion of the cricoarytenoid dorsalis muscle in a medial to lateral direction, and the dorsal suture was then passed through the muscular process, 10 mm rostral to the first suture, engaging the spine in a single or double loop manner. 12 The endoscope was inserted through the previously anesthetized nasal cavity, and the sutures were tightened and tied under endoscopic visualization to optimize the degree of abduction of the left arytenoid cartilage (Dixon grade 3 for draft horses and Dixon grade 2 for other horses). When 2 sutures were used, the lateral suture was tied first.…”

Section: Surgical Techniquementioning

confidence: 99%

“…5,6 Many minor modifications, including the number and type of sutures inserted and the anchoring process used to minimize loss of abduction, have been described. [1][2][3][4][6][7][8][9][10][11][12][13][14] The degree of abduction that should be targeted during surgery and the consequences of suboptimal abduction on airway mechanics, turbulence, and wall pressure have recently been determined using computer modeling. 15 The earliest description of laryngoplasty also reported performing unilateral ventriculectomy with laryngoplasty.…”

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Laryngoplasty in Standing Horses

Rossignol¹,

Vitte²,

Boening

et al. 2014

Veterinary Surgery

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Objective: To describe the clinical experience with standing laryngoplasty in a series of horses mostly non-racing. Study Design: Case series. Animals: Seventy-one client-owned horses. Methods: Medical records (April 2008-February 2014) of horses treated by standing laryngoplasty for abnormal respiratory noise and or poor performance were reviewed. Horses were included if they had a diagnosis of idiopathic right or left recurrent laryngeal neuropathy confirmed by videoendoscopy. All horses underwent a unilateral laryngoplasty with a unilateral or bilateral ventriculectomy or ventriculocordectomy. Follow-up endoscopy was performed in all horses within 24 hours postoperative, in 24 horses at 2 weeks, and in 65 horses at 6 weeks. Late follow-up was obtained from the trainer, owner, or referring veterinarian by telephone. Results: Laryngoplasty was performed under endoscopic guidance with the horses sedated, and the surgical site was desensitized with local anesthetic solution. Laryngoplasty was completed in all horses and was well tolerated. No hyperabduction was observed. Two horses developed incisional swelling that resolved with drainage only. Late follow-up reported satisfactory improvement in respiration in all but 3 horses. Conclusions: Laryngoplasty performed with the horse standing avoids risks associated with general anesthesia and recovery and yields comparable results in nonracing horses, to laryngoplasty performed with the horse anesthetized. This technique reduces cost and allows accurate intraoperative adjustment of the degree of arytenoid abduction.

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“…Rossignol et al (2006) konnte keine signifikanten Unterschiede der Haltekraft in Abhängigkeit von der Implantationstechnik, mit einer einfachen Nadel oder einer Vorbohrung des Knorpels wie von Marks et al (1970) beschrieben, feststellen. Jedoch besitzen vorgebohrte Aryknorpel signifikant weniger Mikrofissuren (Rossignol 2006 …”

Section: Statistische Auswertungunclassified

Double loop implantation - a modification of laryngoplasty

Riedel¹,

Robertz²,

Ohnesorge³

et al. 2008

PHK

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ZusammenfassungDer therapeutische Goldstandard der Hemiplegia laryngis ist heute die Laryngoplastik nach Marks. Jedoch kommt es immer wieder zu einem Versagen der Implantatlager und so zu einem Ausreißen der Prothese. Dies bedingt ein Versagen der Laryngoplastik. Schlüsselwörter: Doppelschlingen Implantation, Laryngoplastik, Knorpelhaltekraft, Hemiplegia laryngis, Chirurgie Double loop implantation -a modification of laryngoplastyAfter 30 years the gold standard surgery for horses suffering from laryngeal hemiplegia is still laryngoplasty. Within these 30 years multiple modifications of the original procedure have been published. Limiting factor and reason for repeated postoperative failure of the procedure is the insufficient elasticity and holding strength of the muscular process of the arytenoid. Within this in vitro study the tension and holding strength of the muscuclar process of the arytenoid where compared by using a single loop and a modified double loop implantation technique. In each group 40 specimen of cadaver laryngs were tested; the age range was from one year to thirty years. All specimen originated from slaughtered German warmblood horses. Using a ZWICK ® material testing device in a specially designed cage tensile forces were applied to the implanted prosthesis until either failure of the arytenoid or of the suture material occurred. Significantly higher mean forces (166,2 N, p = 0,001211) and significantly higher mean tension (29,3 %, p<0,0001) were found with the double loop implant. Consequently 20 horses suffering from left sided hemiplegia grade 3 and 4, Lycra ® /Mersilene ® implant was used with the double loop implantation technique. The outcome was compared to a second group of twenty horses with original single loop implantation. The postoperative outcome was monitored and compared after 24 hours, six weeks and six months . There were no differences found between these two groups of horses, concerning success rate, complications and final result. It has been demonstrated earlier that the surgical tensile forces applied to the muscular process during surgery are in a range of initial cartilage failure. These failure forces will decrease with aging of the horses. As double loop implantation technique improves significantly holding strength and dynamic elasticity of the arytenoid cartilage this technique prevents muscular process failure. This modified technique can be used in horses of all age with an emphasis for use in older horses.

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In Vitro Comparison of Two Techniques for Suture Prosthesis Placement in the Muscular Process of the Equine Arytenoid Cartilage

Abstract: Use of bone trocar to create a hole in the muscular process of the arytenoid cartilage for suture passage in laryngoplasty may reduce fissure formation and decrease the risk of cartilage failure from suture pullout.

Cited by 34 publications

References 5 publications

Laryngoplasty with metallic implants - biomechanical tension test of the arytenoid and cricoid of the horse using metallic prostheses

Laryngoplasty with metallic implants - biomechanical tension test of the arytenoid and cricoid of the horse using metallic prostheses

Laryngoplasty in Standing Horses

Double loop implantation - a modification of laryngoplasty

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