CTTA: egy új módszer kutyák elülső kereszteződő szalag szakadásának gyógykezelésére - preoperatív tervezés és műtéti technika

Kutyákban a hátsó láb sántaság leggyakoribb oka a térdízületben található elülső kereszteződő szalag szakadása. Kóroktana igen összetett, még ma is zajlanak ez irányba kutatások. A szalag szakadása után nem képes meggyógyulni, a térdben osteoarthrosis kialakulása indul meg az állandó instabilitás miatt. Ennek a folyamatnak a megakadályozására, lelassítására többféle műtéti terápia létezik. A probléma gyakorisága okán egyre több műtéti technikát fejlesztettek ki, vettek át a humán ortopéd sebészetből. A legnagyobb újítást a Slocum által 1993-ban leírt módszer a TPLO (tibia plateau leveling osteotomy, tibia plató dóm osztotómia) jelentette, majd a 2002-ben Montavon, Damur és Tepic által leírt TTA (tibial tuberosity advancement, turberositas tibiae cranialis nyílódó ék oszteotómia). Az utóbbi technika továbbfejlesztett változata a jelen dolgozat témájául szolgáló cTTA (circular tibial tuberosity advancement, tuberositas tibiae dóm oszteotómiás korrekcióját), amelyet Massimo Petazzoni írt le 2010-ben. A cTTA technikáról mindezidáig összesen két tudományos közlés jelent meg. Jelen kutatás témájául a műtéti tervezés kapcsán felmerült kérdések és a módszer klinikai vizsgálata szolgál

Anatomy and biomechanical basics of the canine stifle - Part 1: Anatomical overview

SUMMARY The stifle joint is one of the most frequently operated joints in the small animal orthopeadics. In contrast to the small number of bony components the anatomy of the stifle is complicated. The article describes the anatomical classification of the stifle, its ligaments, the synovial compartments, relationship and connection of anatomical components, along with the origins and insertions of the ligaments are described in the first part. The second part will focus on functional and biomechanical considerations. It will discuss the action of the anatomical features in the stifle by phases of movements is discussed. The goal of the paper is to provide a better understanding of the mechanism of injuries in the stifle joint

VOM: a free veterinary orthopaedic planner software

SUMMARY The authors developed a software helping perform quantitative diagnostic and planning tasks in veterinary oprthopaedic. The application provides functions to calibrate the digital radiogram, measure distances and degrees on that, draw lines with a given degree, identify crossing point of two lines or the circumcenter of a triangle defi ned by three points. The tool is free to use and modify, platform independent, open source. The installer for Microsoft Windows operation system and the source code of the tool is downloadable from the site http:// solymosin.github.io/vom/ and https://github.com/solymosin/vom, respectively. The author presents the software functionality by three practical applications

Biomechanical testing of canine tibiae: Changes resulting from different tibial tuberosity advancement techniques – Pilot study

The objective of the present pilot study was to determine the force required to break (a) intact canine tibiae, (b) tibiae following the osteotomy of the tibial tuberosity and (c) tibiae following Tibial Tuberosity Advancement- (TTA-) rapid surgery. Six pairs of tibiae of dogs between 15 and 35 kg body weight were used in a cadaver study. Three groups were created with four tibiae in each group; intact (Group 1), osteotomy of the tibial tuberosity and tibial crest (Group 2) and TTA-rapid (Group 3). The tibiae were put under static axial compressive load, applied until failure. The force required to break the tibiae was termed maximal force ( F max ). The mean of F max was 8193.25 ± 2082.84 N in Group 1, 6868.58 ± 1950.44 N in Group 2 and 7169.71 ± 4450.39 N in Group 3. The sample size was small for a statistical analysis but as a preliminary result, we have determined the force ( F max ) required to break canine tibiae. Furthermore, we hypothesise that osteotomies result in weakening of the tibial structure

cTTA: A new treatment method for cranial cruciate ligament rupture in dogs - Part 1.: preoperative planning

SUMMARY The first part of this study presents the preoperative planning for circular Tibial Tuberosity Advancement (cTTA), a novel method for the treatment of canine cranial cruciate ligament rupture. The first section of the present article is a brief summary of the condition and the surgical techniques used. cTTA was developed by Massimo Petazzoni, an Italian veterinary surgeon as a modification of Tibial Tuberosity Advancement (TTA). Both correction techniques are based on the same principle, the planning methods are very similar. To the authors’ knowledge, there are only two studies available on cTTA to date, both of which providing little information on preoperative planning. The authors’ planning method is based on the common tangent and tibial plateau slope techniques (normally used for TTA) with modifications, in order to determine the ideal degree of correction more accurately

cTTA: A new treatment method for cranial cruciate ligament rupture in dogs - Part 2.: surgical technique

SUMMARY The second part of the study presents a detailed description of the surgical technique and early results with circular Tibial Tuberosity Advancement (cTTA), a novel method for the treatment of canine cranial cruciate ligament rupture. For preoperative planning, see part one of the present article. The technique is based on Tibial Tuberosity Advancement (TTA), sharing the same principle of biomechanical stabilization. To the authors’ knowledge, there are only two studies available on cTTA to date. The study involved 16 patients, followed up to two weeks after implant removal. Complications occurred in seven patients (43.75%), one of which had two different complications at two different periods of time. Though the rate of complications might seem high, all were classified as minor, and none required reoperation. After the removal of the implants, all patients performed well