Kirurško liječenje arahnoidalnog divertikula u pasa

master's thesis

• Title (english): Surgical Treatment of Dogs with Spinal Arachnoid Diverticulum
• Author: Petra Ricijaš
• Mentor: Petra Dmitrović (mentor)
• Committee member: Boris Pirkić (predsjednik povjerenstva)
• Committee member: Andrija Musulin (član povjerenstva)
• Committee member: Petra Dmitrović (član povjerenstva)
• Granter: University of Zagreb; Faculty of Veterinary Medicine; Zagreb
• Defense date and country: 2024-11-29, Croatia
• Scientific / art field, discipline and subdiscipline: BIOMEDICINE AND HEALTHCARE; Veterinary Medicine; Veterinary Clinical Sciences

Abstract

Arahnoidalni divertikul jest abnormalna dilatacija arahnoidalnog prostora koja dovodi do
posljedične kompresije kralježnične moždine te sporo progresivne neurološke disfunkcije.
Retrospektivnim istraživanjem u razdoblju od 2021. do 2024. godine obuhvaćeno je 7 pasa s ADom liječenih na Klinici za kirurgiju, ortopediju i oftalmologiju Veterinarskog fakulteta Sveučilišta
u Zagrebu. Potvrđena je češća pojavnost AD-a u mužjaka nego u ženki. Najčešće zastupljena
pasmina bila je francuski buldog. U grudno-slabinskom segmentu kralježnice AD-i bili su
smješteni u malih pasmina pasa, a u psa velike pasmine AD se nalazio u vratnom segmentu
kralježnice. Ovim istraživanjem opisan je prvi slučaj AD-a u grudno-slabinskom području
kralježnice u pasmine jorkširski terijer. Psima je AD dijagnosticiran MR metodom slikovne
dijagnostike, a unutaroperacijski nalaz u svih pacijenata odgovarao je nalazima MR-a. Svi psi su
operirani tehnikom koja uključuje dorzalnu laminektomiju uz durektomiju i eksciziju divertikula
od strane istog kirurga te je kratkoročni ishod kirurškog liječenja bio povoljan u svih pasa. Do
trenutka pisanja ovog rada, nije prijavljen niti jedan slučaj recidiva u operiranih životinja. Zbog
visoke pojavnosti oboljenja obližnjih segmenata kralježnice, moguća je njihova uloga u stvaranju
arahnoidalnog divertikula. Premda su opisane brojne kirurške tehnike, još uvijek nema dokaza o
superiornosti jedne tehnike nad drugom. Arahnoidalni divertikul predmet je brojnih istraživanja
kako bi se bolje razumjela etiopatogeneza te pronašla najbolja kirurška tehnika, ne samo za
uklanjanje divertikula, već i sprječavanje njegove ponovne pojave. Vjerujemo kako opis nove
tehnike i njenog ishoda, uz prikaze slučajeva, doprinosi boljem razumijevanju i uspješnijem
liječenju ove bolesti u pasa.

Abstract (english)

Spinal arachnoid diverticulum is an abnormal dilation of the arachnoid space, leading to spinal
cord compression and gradually progressive neurological dysfunction. We reviewed the clinical
records of seven dogs with spinal arachnoid diverticula treated at the Clinic for Surgery,
Orthopedics, and Ophthalmology at the Faculty of Veterinary Medicine, University of Zagreb,
between 2021 and 2024. Our findings confirmed that spinal arachnoid diverticulum occurs more
frequently in male dogs than in females, with the French Bulldog being the most commonly
affected breed. In small-breed dogs, diverticula were typically located in the thoracolumbar
segment of the spine, while in large-breed dogs, they were found in the cervical segment. We
report the first case of thoracolumbar spinal arachnoid diverticula in a Yorkshire Terrier. All dogs
were diagnosed using MRI, and the intraoperative findings corresponded to the MRI results in
each case. Surgical treatment involved a technique comprising dorsal laminectomy with
durectomy and diverticula excision, performed by the same surgeon. The short-term outcomes
were favorable for all dogs, with no cases of recurrence reported at the time of this writing. The
possible role of other pathologies in adjacent spinal segments in the formation of spinal arachnoid
diverticula is also noted due to their frequent association. While various surgical techniques have
been described, evidence is lacking to show a clear superiority of one approach over another.
Arachnoid diverticula remain the focus of extensive research aimed at better understanding
etiopathogenesis and identifying the optimal surgical technique, not only to remove the
diverticulum but also to prevent its recurrence. We believe that documenting this new technique
and its outcomes, along with case reports, contributes to a better understanding and more effective
treatment of this condition in dogs.

• Keywords: arahnoidalni divertikul; dorzalna laminektomija; durektomija; pas
• Keywords (english): spinal arachnoid diverticulum; dorsal laminectomy; durectomy; dog
• Language: croatian
• URN:NBN: urn:nbn:hr:178:747074
• Study programme: Title: Veterinary Medicine; Study programme type: university; Study level: integrated undergraduate and graduate; Academic / professional title: doktor/doktorica veterinarske medicine (doktor/doktorica veterinarske medicine)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2025-01-16 11:01:02