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Deprey J, Blondel M, Baldinger A, Gauthier O, Hée J, Moissonnier P, Viguier E, Carozzo C, Cachon T. In vitro comparison on a gap fracture model of a novel angle-stable interlocking nail to locking plate fixation in torsion, compression and bending. Comput Methods Biomech Biomed Engin 2020. [DOI: 10.1080/10255842.2020.1812166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- J. Deprey
- Surgery Unit, Lyon Veterinary Teaching Hospital, University of Lyon, Veterinary Campus of Vetagro Sup, Marcy L’Etoile, France
- Reseach Unit ICE, UPSP A104-2016, University of Lyon, Veterinary Campus of Vetagro Sup, Marcy L’Etoile, France
| | - M. Blondel
- Surgery Unit, Lyon Veterinary Teaching Hospital, University of Lyon, Veterinary Campus of Vetagro Sup, Marcy L’Etoile, France
- Reseach Unit ICE, UPSP A104-2016, University of Lyon, Veterinary Campus of Vetagro Sup, Marcy L’Etoile, France
| | - A. Baldinger
- Surgery Unit, Lyon Veterinary Teaching Hospital, University of Lyon, Veterinary Campus of Vetagro Sup, Marcy L’Etoile, France
- Reseach Unit ICE, UPSP A104-2016, University of Lyon, Veterinary Campus of Vetagro Sup, Marcy L’Etoile, France
| | - O. Gauthier
- Department of Small Animal Surgery and Anesthesia, ONIRIS Nantes-Atlantic College of Veterinary Medicine, Food Science and Engineering, Nantes, France
| | | | - P. Moissonnier
- Surgery Unit, Lyon Veterinary Teaching Hospital, University of Lyon, Veterinary Campus of Vetagro Sup, Marcy L’Etoile, France
- Reseach Unit ICE, UPSP A104-2016, University of Lyon, Veterinary Campus of Vetagro Sup, Marcy L’Etoile, France
| | - E. Viguier
- Surgery Unit, Lyon Veterinary Teaching Hospital, University of Lyon, Veterinary Campus of Vetagro Sup, Marcy L’Etoile, France
- Reseach Unit ICE, UPSP A104-2016, University of Lyon, Veterinary Campus of Vetagro Sup, Marcy L’Etoile, France
| | - C. Carozzo
- Surgery Unit, Lyon Veterinary Teaching Hospital, University of Lyon, Veterinary Campus of Vetagro Sup, Marcy L’Etoile, France
- Reseach Unit ICE, UPSP A104-2016, University of Lyon, Veterinary Campus of Vetagro Sup, Marcy L’Etoile, France
| | - T. Cachon
- Surgery Unit, Lyon Veterinary Teaching Hospital, University of Lyon, Veterinary Campus of Vetagro Sup, Marcy L’Etoile, France
- Reseach Unit ICE, UPSP A104-2016, University of Lyon, Veterinary Campus of Vetagro Sup, Marcy L’Etoile, France
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Saban C, Viguier E, Taroni M, Baldinger A, Blondel M, Carozzo C, Moissonnier P, Cachon T. Ex vivo biomechanical evaluation of the primary stability of three different types of femoral stems for total hip replacement in dogs. Comput Methods Biomech Biomed Engin 2020. [DOI: 10.1080/10255842.2020.1815316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- C. Saban
- Small animal surgery Department, VetAgro-Sup, Unite ICE UPSP, France
| | - E. Viguier
- Small animal surgery Department, VetAgro-Sup, Unite ICE UPSP, France
| | - M. Taroni
- Small animal surgery Department, VetAgro-Sup, Unite ICE UPSP, France
| | - A. Baldinger
- Small animal surgery Department, VetAgro-Sup, Unite ICE UPSP, France
| | - M. Blondel
- Small animal surgery Department, VetAgro-Sup, Unite ICE UPSP, France
| | - C. Carozzo
- Small animal surgery Department, VetAgro-Sup, Unite ICE UPSP, France
| | - P. Moissonnier
- Small animal surgery Department, VetAgro-Sup, Unite ICE UPSP, France
| | - T. Cachon
- Small animal surgery Department, VetAgro-Sup, Unite ICE UPSP, France
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3
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Rafael P, Goin B, Buttin P, Cachon T, Viguier E. Comparison of two methods of fixation with interference screw for cranial cruciate ligament reconstruction in canine cadaver model. Comput Methods Biomech Biomed Engin 2020. [DOI: 10.1080/10255842.2020.1812846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- P. Rafael
- Université de Lyon, VetAgro Sup, ICE, Marcy l’Etoile, France
| | - B. Goin
- Université de Lyon, VetAgro Sup, ICE, Marcy l’Etoile, France
- Novetech Surgery, Monaco
| | | | - T. Cachon
- Université de Lyon, VetAgro Sup, ICE, Marcy l’Etoile, France
| | - E. Viguier
- Université de Lyon, VetAgro Sup, ICE, Marcy l’Etoile, France
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Goin B, Buttin P, Cachon T, Viguier E. Biomechanical comparison of two suturing techniques during Achilles tendinoplasty in dogs: preliminary results. Comput Methods Biomech Biomed Engin 2020. [DOI: 10.1080/10255842.2020.1816299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- B. Goin
- VetAgro Sup, ICE, Université de Lyon, Marcy l’Etoile, France
- Novetech Surgery, Monaco
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Buttin P, Goin B, Giraud N, Viguier E, Cachon T. Biomechanical analysis of an original repair of an achilles tendon rupture in dogs: preliminary results. Comput Methods Biomech Biomed Engin 2020. [DOI: 10.1080/10255842.2020.1812157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
| | - B. Goin
- Université de Lyon, VetAgro Sup, ICE, Lyon, France
- Novetech Surgery, Monaco
| | - N. Giraud
- Université de Lyon, VetAgro Sup, ICE, Lyon, France
| | - E. Viguier
- Université de Lyon, VetAgro Sup, ICE, Lyon, France
| | - T. Cachon
- Université de Lyon, VetAgro Sup, ICE, Lyon, France
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6
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Cachon T, Hassoun R, Odet M, Massenzio M, Carozzo C, Ronel S, Lafon Y, Viguier E. Morphometric dimensions of the goat thoracolumbar vertebrae using digitized CT images. Comput Methods Biomech Biomed Engin 2020. [DOI: 10.1080/10255842.2020.1713505] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- T. Cachon
- Université de Lyon, VetAgro Sup, Marcy l’Etoile, France
| | - R. Hassoun
- Université de Lyon, VetAgro Sup, Marcy l’Etoile, France
| | - M. Odet
- Université de Lyon, Université Claude Bernard Lyon 1, IFSTTAR, Lyon, France
| | - M. Massenzio
- Université de Lyon, Université Claude Bernard Lyon 1, IFSTTAR, Lyon, France
| | - C. Carozzo
- Université de Lyon, VetAgro Sup, Marcy l’Etoile, France
| | - S. Ronel
- Université de Lyon, Université Claude Bernard Lyon 1, IFSTTAR, Lyon, France
| | - Y. Lafon
- Université de Lyon, Université Claude Bernard Lyon 1, IFSTTAR, Lyon, France
| | - E. Viguier
- Université de Lyon, VetAgro Sup, Marcy l’Etoile, France
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Caraty J, De Vreught L, Cachon T, Moissonnier P, Bongartz A, Viguier E, Carozzo C. Comparison of the different supports used in veterinary medicine for pressure sore prevention. J Small Anim Pract 2019; 60:623-630. [PMID: 31364781 DOI: 10.1111/jsap.13061] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Revised: 04/26/2019] [Accepted: 04/26/2019] [Indexed: 11/28/2022]
Abstract
OBJECTIVES To compare the pressure-relieving capacity of different supports used in veterinary medicine and to find the more common pressure sore locations in laterally recumbent dogs, so as to recommend protocols for decubitus ulcer prevention. MATERIALS AND METHODS We compared the support properties of: (1) blankets on the floor, (2) a standard mattress, (3) a veterinary memory foam mattress and (4) a human medicine memory foam mattress. Three cadaver dogs with different body condition scores but similar sizes were positioned on the different supports in lateral recumbency. Pressures were measured in each dog and at each support contact point over a 4-hour period using a TexiSense pressure mat. RESULTS Regardless of the body condition score and the support used, the skin overlying the scapula-humeral articulation, the greater trochanter and the thirteenth rib were the recurrent risk zones. In these risk zones, pressure-relieving mats led to lower pressures than did the standard mats or the blanket placed on the floor. The contact pressures appeared to depend on body condition score, with maximal pressures observed in thin dogs. CLINICAL SIGNIFICANCE It is important to use a pressure-relieving mat to reduce the risk of pressure sores, but static pressure-relieving mats are generally insufficient to maintain safe pressures in risk zones (<60 mmHg), particularly in thin patients, and so frequent changes in position are recommended.
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Affiliation(s)
- J Caraty
- VetTeam, Surgery Department, Liège, Belgium
| | - L De Vreught
- Université de Lyon, VetAgro Sup, UPSP 2016 A104, Unité ICE, Marcy l'Etoile, France
| | - T Cachon
- Université de Lyon, VetAgro Sup, UPSP 2016 A104, Unité ICE, Marcy l'Etoile, France
| | - P Moissonnier
- Université de Lyon, VetAgro Sup, UPSP 2016 A104, Unité ICE, Marcy l'Etoile, France
| | - A Bongartz
- VetTeam, Surgery Department, Liège, Belgium
| | - E Viguier
- Université de Lyon, VetAgro Sup, UPSP 2016 A104, Unité ICE, Marcy l'Etoile, France
| | - C Carozzo
- Université de Lyon, VetAgro Sup, UPSP 2016 A104, Unité ICE, Marcy l'Etoile, France
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Labelle F, Auger O, Carozzo C, Massenzio M, Miladi L, Odent T, Viguier E, Cachon T. Ex vivo biomechanical study on a porcine model of three types of stabilisation in scoliosis treatment. Comput Methods Biomech Biomed Engin 2019. [DOI: 10.1080/10255842.2020.1714982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- F. Labelle
- Vetagro-Sup, Campus Vétérinaire de Lyon Unité de Chirurgie, Marcy-l’Etoile, France
| | - O. Auger
- Vetagro-Sup, Campus Vétérinaire de Lyon Unité de Chirurgie, Marcy-l’Etoile, France
| | - C. Carozzo
- Vetagro-Sup, Campus Vétérinaire de Lyon Unité de Chirurgie, Marcy-l’Etoile, France
| | - M. Massenzio
- Université de Lyon, Université Claude Bernard Lyon 1, IFSTTAR, LBMC UMR_T9406, Lyon, France
| | - L. Miladi
- Service orthopédie pédiatrique, CHU Necker Enfants Malades, APHP, Faculté de Médecine, Paris Cedex 15, France
| | - T. Odent
- Chirurgie orthopédique pédiatrique, hôpital Clocheville, Tours, France
| | - E. Viguier
- Vetagro-Sup, Campus Vétérinaire de Lyon Unité de Chirurgie, Marcy-l’Etoile, France
| | - T. Cachon
- Vetagro-Sup, Campus Vétérinaire de Lyon Unité de Chirurgie, Marcy-l’Etoile, France
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Blanc Q, Goin B, Rafael P, Moissonnier P, Carozzo C, Buttin P, Cachon T, Viguier E. Effect of the number of interference screws for the fixation of an intra-articular cranial cruciate ligament prosthesis in dogs: Biomechanical study. Comput Methods Biomech Biomed Engin 2019. [DOI: 10.1080/10255842.2020.1713496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Q. Blanc
- Université de Lyon, VetAgro Sup, ICE, Marcy l’Etoile, France
| | - B. Goin
- Aix-Marseille Université, CNRS, ISM, Marseille, France
| | - P. Rafael
- Université de Lyon, VetAgro Sup, ICE, Marcy l’Etoile, France
| | - P. Moissonnier
- Université de Lyon, VetAgro Sup, ICE, Marcy l’Etoile, France
| | - C. Carozzo
- Université de Lyon, VetAgro Sup, ICE, Marcy l’Etoile, France
| | - P. Buttin
- Université de Lyon, VetAgro Sup, ICE, Marcy l’Etoile, France
| | - T. Cachon
- Université de Lyon, VetAgro Sup, ICE, Marcy l’Etoile, France
| | - E. Viguier
- Université de Lyon, VetAgro Sup, ICE, Marcy l’Etoile, France
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Goin B, Rafael P, Blanc Q, Cachon T, Buttin P, Carozzo C, Chabrand P, Viguier E. Biomechanical analysis of a ligament fixation system for CCL reconstruction in a canine cadaver model. Comput Methods Biomech Biomed Engin 2019. [DOI: 10.1080/10255842.2020.1713499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- B. Goin
- Aix-Marseille Université, CNRS, ISM, Marseille, France
- Université de Lyon, VetAgro Sup, ICE, Marcy l’Etoile, France
| | - P. Rafael
- Université de Lyon, VetAgro Sup, ICE, Marcy l’Etoile, France
| | - Q. Blanc
- Université de Lyon, VetAgro Sup, ICE, Marcy l’Etoile, France
| | - T. Cachon
- Université de Lyon, VetAgro Sup, ICE, Marcy l’Etoile, France
| | - P. Buttin
- Université de Lyon, VetAgro Sup, ICE, Marcy l’Etoile, France
| | - C. Carozzo
- Université de Lyon, VetAgro Sup, ICE, Marcy l’Etoile, France
| | - P. Chabrand
- Aix-Marseille Université, CNRS, ISM, Marseille, France
| | - E. Viguier
- Université de Lyon, VetAgro Sup, ICE, Marcy l’Etoile, France
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Caraty J, De Vreught L, Cachon T, Moissonnier P, Bongartz A, Viguier E, Carozzo C. RETRACTED ARTICLE: Pressure sore prevention in vet medicine: importance of the supports. Comput Methods Biomech Biomed Engin 2019. [DOI: 10.1080/10255842.2020.1713488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
| | | | - T. Cachon
- Université de Lyon, VetAgro Sup, UPSP 2016 A104, Unité ICE, Marcy l'Etoile, France
| | - P. Moissonnier
- Université de Lyon, VetAgro Sup, UPSP 2016 A104, Unité ICE, Marcy l'Etoile, France
| | | | - E. Viguier
- Université de Lyon, VetAgro Sup, UPSP 2016 A104, Unité ICE, Marcy l'Etoile, France
| | - C. Carozzo
- Université de Lyon, VetAgro Sup, UPSP 2016 A104, Unité ICE, Marcy l'Etoile, France
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Abstract
SummaryIn order to compare the interfragmentary motion and bone strains in ostectomized canine femurs, stabilized with either an 8 mm interlocking nail system (IN) or a 10-hole 3.5 mm dynamic compression broad plate (DCP), ten pairs of adult canine femurs with a 25 mm mid-diaphyseal gap were used. The left femurs were implanted with a DCP and eight bi-cortical screws, and the right femurs were implanted with an IN and three screws. Eccentric axial loading and cranio-caudal bending were successively performed on every specimen. Employing an opto-electronic device, interfragmentary (axial, transverse and rotational) motion was measured during non-destructive tests. Bone strains were measured at three elective sites, with strain gauges in four pairs of the specimen. The mean values of axial and transverse motion were compared using a paired t-test within each group (P <0.05). Strain values were compared using a numerical scale and a qualitative analysis. Transverse motion was higher with DCP, whereas axial motion was higher with IN. Bone strain analysis demonstrated lower “stress protection” near the gap with IN. Those comparative results are interpretative: IN may be an interesting alternative implant for unstable diaphyseal femoral fracture repair in dogs.
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Cachon T, Fau D, Carozzo C, Viguier E, Collard F, Remy D, Genevois JP. Canine hip dysplasia radiographic screening. Prevalence of rotation of the pelvis along its length axis in 7,012 conventional hip extended radiographs. Vet Comp Orthop Traumatol 2017. [DOI: 10.1160/vcot-07-01-0007] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
SummaryThe prevalence of rotation of the pelvis along its length axis was noted, as was the number of rotations towards the right or left hand side of the dog, on 7,012 conventional hip extended radiographs, which were sent for official screening. 29.8% of the radiographs showed a rotation the pelvis. The rotation was statistically more frequent towards the left hand side of the dog. The number of rejected radiographs for too important pelvis rotation was only 5.2%. The consequences of the pelvis rotation on the Norberg-Olsson angle, on the dorsal femoral head coverage, and in the aspect of cranial acetabular edge have to be taken into account when scoring the dog for hip dysplasia.
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Halimi C, Montembault A, Guerry A, Delair T, Viguier E, Fulchiron R, David L. Chitosan solutions as injectable systems for dermal filler applications: Rheological characterization and biological evidence. Annu Int Conf IEEE Eng Med Biol Soc 2016; 2015:2596-9. [PMID: 26736823 DOI: 10.1109/embc.2015.7318923] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
A new generation of dermal filler for wrinkle filler based on chitosan was compared to current hyaluronic acid-based dermal fillers by using a new rheological performance criterion based on viscosity during injection related to Newtonian viscosity. In addition an in vivo evaluation was performed for preclinical evidence of chitosan use as dermal filler. In this way, biocompatibility and dermis reconstruction was evaluated on a pig model.
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Chotar-Vasseur Y, Halimi C, Cachon T, Carozzo C, Sudre G, David L, Viguier E. Mechanical properties of porcine spinal segments after intervertebral disc fenestration: an in vitro preliminary study. Comput Methods Biomech Biomed Engin 2015; 18:1904-1905. [DOI: 10.1080/10255842.2015.1069630] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
| | - C. Halimi
- IMP (CNRS, UMR 5223), Université Claude Bernard Lyon1, Villeurbanne, France
- CYTOSIAL Biomedic, Accinov innovation platform, Lyon, France
| | - T. Cachon
- ICE (UPSP 2011.03.101), Marcy l’Etoile, France
| | - C. Carozzo
- ICE (UPSP 2011.03.101), Marcy l’Etoile, France
| | - G. Sudre
- IMP (CNRS, UMR 5223), Université Claude Bernard Lyon1, Villeurbanne, France
| | - L. David
- IMP (CNRS, UMR 5223), Université Claude Bernard Lyon1, Villeurbanne, France
| | - E. Viguier
- ICE (UPSP 2011.03.101), Marcy l’Etoile, France
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Brouillet N, Jarlot B, Pillard P, Bertucci W, Viguier E. Preliminary comparative study of two accelerometers performances for evaluation of dorsoventral movement in trotting horse. Comput Methods Biomech Biomed Engin 2015; 18 Suppl 1:1892-3. [DOI: 10.1080/10255842.2015.1076654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- N. Brouillet
- GRESPI (EA4496)/UFR STAPS, Université de Reims Champagne-Ardenne, Reims, France
| | - B. Jarlot
- GRESPI (EA4496)/UFR STAPS, Université de Reims Champagne-Ardenne, Reims, France
| | - P. Pillard
- VETAGRO SUP, Campus ENV de Lyon, ICE UPSP 2011-03-101, Marcy L’Etoile, France
| | - W. Bertucci
- GRESPI (EA4496)/UFR STAPS, Université de Reims Champagne-Ardenne, Reims, France
| | - E. Viguier
- VETAGRO SUP, Campus ENV de Lyon, ICE UPSP 2011-03-101, Marcy L’Etoile, France
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Chotar-Vasseur Y, Cachon T, Ponsard B, Carozzo C, Viguier E. In vitro comparison between mechanical properties and elastographic characterization of porcine intervertebral disc. Comput Methods Biomech Biomed Engin 2015; 18:1906-1907. [PMID: 26252473 DOI: 10.1080/10255842.2015.1072417] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Y Chotar-Vasseur
- a ICE (UPSP 2011.03.101) , Campus vétérinaire de Lyon, VetAgro Sup , Marcy l'Etoile , France
| | - T Cachon
- a ICE (UPSP 2011.03.101) , Campus vétérinaire de Lyon, VetAgro Sup , Marcy l'Etoile , France
| | - B Ponsard
- b LTDS (UMR CNRS 5513) , Ecole Centrale de Lyon , Ecully , France
| | - C Carozzo
- a ICE (UPSP 2011.03.101) , Campus vétérinaire de Lyon, VetAgro Sup , Marcy l'Etoile , France
| | - E Viguier
- a ICE (UPSP 2011.03.101) , Campus vétérinaire de Lyon, VetAgro Sup , Marcy l'Etoile , France
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Taroni M, Molimard J, Cachon T, Viguier E, Carozzo C. Robert Jones bandage pressure range assessment using a pressure mapping system and application to band calibration. Comput Methods Biomech Biomed Engin 2015; 18 Suppl 1:2068-9. [PMID: 26323986 DOI: 10.1080/10255842.2015.1069560] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- M Taroni
- a UPSP ICE 2011.03.101, Université de Lyon, VetAgro Sup , Lyon , France
| | - J Molimard
- b LGF, UMR 5307, CNRS, École Nationale Supérieure des Mines, CIS-EMSE , Saint-Etienne , France
| | - T Cachon
- a UPSP ICE 2011.03.101, Université de Lyon, VetAgro Sup , Lyon , France
| | - E Viguier
- a UPSP ICE 2011.03.101, Université de Lyon, VetAgro Sup , Lyon , France
| | - C Carozzo
- a UPSP ICE 2011.03.101, Université de Lyon, VetAgro Sup , Lyon , France
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Levillain A, Boulocher C, Kaderli S, Viguier E, Hannouche D, Hoc T, Magoariec H. Meniscal biomechanical alterations in an ACLT rabbit model of early osteoarthritis. Osteoarthritis Cartilage 2015; 23:1186-93. [PMID: 25725391 DOI: 10.1016/j.joca.2015.02.022] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/12/2014] [Revised: 02/11/2015] [Accepted: 02/18/2015] [Indexed: 02/07/2023]
Abstract
OBJECTIVE The purpose of this study was to analyze the early biomechanical alterations of menisci during the early stage of osteoarthritis (OA) development and to correlate them with the chemical composition and matrix alteration. A particular focus was paid to pathological changes in glycosaminoglycan (GAG) content and collagen fiber architecture. DESIGN Menisci (n = 24) were removed from rabbits' knee joints 6 weeks following surgical anterior cruciate ligament transection (ACLT). Both the anterior and posterior regions of medial and lateral menisci were characterized using indentation tests, Raman microspectroscopy (RM), biphotonic confocal microscopy (BCM) and histology. RESULTS Mechanical and matrix alterations occurred in both regions of medial and lateral menisci. A significant decrease in the mechanical properties was observed in OA menisci, with a mean reduced modulus from 2.3 to 1.1 MPa. Microstructural observations revealed less organized and less compact collagen bundles in operated menisci than in contralateral menisci, as well as a loss of fiber tension. GAG content was increased in OA menisci, especially in the damaged areas. Neither changes in the secondary structure of collagen nor mineralization were detected through RM at this stage of OA. CONCLUSION ACLT led to a disorganization of the collagen framework at the early stage of OA development, which decreases the mechanical resistance of the menisci. GAG content increases in response to this degradation. All of these results demonstrate the strong correlation between matrix and mechanical alterations.
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Affiliation(s)
- A Levillain
- LTDS, UMR CNRS 5513, Université de Lyon, Ecole centrale de Lyon, 36 av Guy de Collongue, 69134 Ecully Cedex, France
| | - C Boulocher
- Research Unit ICE, UPSP 2011.03.101, Université de Lyon, Veterinary Campus of VetAgro Sup, 69 280 Marcy l'Etoile, France
| | - S Kaderli
- School of Pharmaceutical Sciences, University of Geneva and Lausanne, Quai Ernest-Ansermet 30, 1211 Geneva, Switzerland
| | - E Viguier
- Research Unit ICE, UPSP 2011.03.101, Université de Lyon, Veterinary Campus of VetAgro Sup, 69 280 Marcy l'Etoile, France
| | - D Hannouche
- B2OA, UMR CNRS 7052 CHU Lariboisière Saint Louis, 10 av de Verdun, 75020 Paris France
| | - T Hoc
- LTDS, UMR CNRS 5513, Université de Lyon, Ecole centrale de Lyon, 36 av Guy de Collongue, 69134 Ecully Cedex, France.
| | - H Magoariec
- LTDS, UMR CNRS 5513, Université de Lyon, Ecole centrale de Lyon, 36 av Guy de Collongue, 69134 Ecully Cedex, France
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Kaderli S, Boulocher C, Pillet E, Watrelot-Virieux D, Rougemont A, Roger T, Viguier E, Gurny R, Scapozza L, Jordan O. A novel biocompatible hyaluronic acid–chitosan hybrid hydrogel for osteoarthrosis therapy. Int J Pharm 2015; 483:158-68. [DOI: 10.1016/j.ijpharm.2015.01.052] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2014] [Revised: 01/28/2015] [Accepted: 01/30/2015] [Indexed: 12/19/2022]
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Saulnier N, Viguier E, Perrier-Groult E, Chenu C, Pillet E, Roger T, Maddens S, Boulocher C. Intra-articular administration of xenogeneic neonatal Mesenchymal Stromal Cells early after meniscal injury down-regulates metalloproteinase gene expression in synovium and prevents cartilage degradation in a rabbit model of osteoarthritis. Osteoarthritis Cartilage 2015; 23:122-33. [PMID: 25219668 DOI: 10.1016/j.joca.2014.09.007] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2014] [Revised: 08/18/2014] [Accepted: 09/02/2014] [Indexed: 02/08/2023]
Abstract
OBJECTIVE The anti-inflammatory and anti-catabolic effects of neonatal Mesenchymal Stromal Cell (MSC) were investigated in a xenogeneic model of mild osteoarthritis (OA). The paracrine properties of MSC on synoviocytes were further investigated in vitro. STUDY DESIGN OA was induced by medial meniscal release (MMR) in 30 rabbit knees. A single early (day 3) or delayed (day 15) intra-articular (IA) injection of MSC isolated from equine Umbilical Cord Wharton's jelly (UC-MSC) was performed. Rabbits were euthanized on days 15 or 56. OA grading was performed and gene expression of inflammatory cytokines and metalloproteinases was measured in synovial tissue. Paracrine effects of UC-MSC were investigated using UC-conditioned vs control medium on rabbit primary synoviocytes stimulated with interleukin 1 beta in vitro. RESULTS No adverse local or systemic responses were observed clinically after xenogeneic UC-MSC injection. At study end point, cartilage fibrillation was lower in early treatment than in delayed treatment group. Cellular infiltrate was observed in the synovium of both UC-MSC groups. OA synovium exhibited a reduced expression of metalloproteinases-1, -3, -13 in the early cell-treated group at d56. In vitro, UC-conditioned medium exerted anti-inflammatory and anti-catabolic effects on synoviocytes exposed to pro-inflammatory stimulus. CONCLUSIONS Early IA injection of equine UC-MSC was effective in preventing OA signs in rabbit knees following MMR. UC-MSC target the synovium and modulate the gene expression pattern of synoviocytes to promote an anti-catabolic environment. This confirms the synovium is a major target and mediator of MSC therapy, modulating the expression of matrix-degrading enzymes.
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Affiliation(s)
| | - E Viguier
- UPSP 2011.03.101, VetAgro Sup, University of Lyon, Marcy l'Etoile, France
| | - E Perrier-Groult
- CNRS UMR 5305, IBCP, Institut de Biologie et Chimie des Protéines, Lyon, France
| | - C Chenu
- UPSP 2011.03.101, VetAgro Sup, University of Lyon, Marcy l'Etoile, France
| | - E Pillet
- UPSP 2011.03.101, VetAgro Sup, University of Lyon, Marcy l'Etoile, France
| | - T Roger
- UPSP 2011.03.101, VetAgro Sup, University of Lyon, Marcy l'Etoile, France
| | | | - C Boulocher
- UPSP 2011.03.101, VetAgro Sup, University of Lyon, Marcy l'Etoile, France.
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Feuillet T, Seurin MJ, Leveneur O, Viguier E, Beuf O. Coil optimization for low-field MRI: a dedicated process for small animal preclinical studies. Lab Anim 2014; 49:153-67. [PMID: 25359877 DOI: 10.1177/0023677214558103] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
We demonstrate a method for the fast in vivo quantification of small volumes, down to 25 µL, using low-field magnetic resonance imaging (MRI) coils. The coils were designed so as to maximize the signal-to-noise ratio (SNR) in the images. For this we developed an analytical model for describing the variations of the SNR with coil design and with size/shape suited to the object under observation. Based on the conclusions drawn from the model, the coil parameters were chosen in order to reach an SNR close to the maximum. For the validation of the model, coils were finally characterized in terms of quality factor using saline phantoms. The coil design procedure is illustrated here with two examples: first, the quantification of about 200 µL of intradermal injected gel on rabbits with a single loop surface coil and second, the imaging of the intervertebral disks in rat tails using a small volume coil to detect possible lesions. Such studies would not have been feasible for the clinical low-field MRI system at our disposal using any of the commercially available medium-sized manufactured coils. As a result of this simple optimization procedure, a wide range of applications is accessible even at low magnetic fields, leading to new opportunities for low-cost, though efficient, preclinical studies.
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Affiliation(s)
- T Feuillet
- Université de Lyon, CREATIS; CNRS UMR 5220; Inserm U1044; INSA-Lyon; Université Lyon 1, Villeurbanne, France Cirma, Marcy l'Etoile, France
| | | | - O Leveneur
- Institut Claude Bourgelat, VetAgro Sup, Campus Vétérinaire de Lyon, Marcy l'Etoile, France
| | - E Viguier
- Université de Lyon, VetAgro Sup, Campus Vétérinaire de Lyon, Marcy l'Etoile, France
| | - O Beuf
- Université de Lyon, CREATIS; CNRS UMR 5220; Inserm U1044; INSA-Lyon; Université Lyon 1, Villeurbanne, France
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Le Cann S, Cachon T, Viguier E, Baron C, Miladi L, Odent T, Rossi JM, Chabrand P. Influence of age and localisation on pedicle fixation in immature porcine spines. Comput Methods Biomech Biomed Engin 2014; 17 Suppl 1:66-7. [PMID: 25074167 DOI: 10.1080/10255842.2014.931128] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- S Le Cann
- a Aix-Marseille Université, CNRS, ISM UMR 7287, 13288 , Marseille Cedex 09, France
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Pillard P, Cachon T, Carozzo C, Fau D, Odent T, Viguier E. Computed tomography morphometric analysis of porcine spinal growth for scoliosis model development. Comput Methods Biomech Biomed Engin 2014; 17 Suppl 1:64-5. [DOI: 10.1080/10255842.2014.931126] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Buttin P, Millet M, Cousin S, Carozzo C, Cachon T, Fau D, Chuzel T, Viguier E. Computed tomographic measurements with and without myelography to characterise thoracolumbar extruded disc herniation. J Small Anim Pract 2013; 54:521-30. [PMID: 24000825 DOI: 10.1111/jsap.12135] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
OBJECTIVE To determine association between computed tomography measurements of spinal cord compression and postoperative outcome. METHODS A retrospective review of medical records of dogs presenting with intervertebral disease. Data were collected with a minimum of 2 years follow-up period. Computed tomography morphometric indices, particularly the ratio of spinal cord or herniated disc to vertebral canal dimensions, were obtained from survey and myelogram computed tomographic images. The pattern of disc disease was scored as single or continuous (multiple herniated discs), and was compared to postoperative outcome. RESULTS Fifty-two dogs were included. There was no significant correlation between the degree of spinal cord compression and postoperative outcome. However, postoperative outcome differed significantly between dogs with single or continuous patterns of disc disease (P=0·001). Of those with single patterns, 75% had a postoperative outcome score greater than 75% while 75% of continuous pattern cases had scores lower than 83%. CLINICAL SIGNIFICANCE Simple observation of the pattern of disc disease as revealed by computed tomography could be used as a prognostic indicator. The outcome tends to be better for single patterns of disc disease, whereas the outcome was poor for most cases with continuous patterns.
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Affiliation(s)
- P Buttin
- Vetagro Sup Small Animal Surgery Department, Marcy l'étoile, 69280, France
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Pillard P, Ferrand FX, Viguier E. 3D accelerometric gait analysis in dogs using smartphone. Comput Methods Biomech Biomed Engin 2013; 16 Suppl 1:136-8. [PMID: 23923883 DOI: 10.1080/10255842.2013.815879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- P Pillard
- ICE, UPSP 2011.03.101, Campus vétérinaire de Lyon, VetAgro Sup, Marcy L'étoile, France
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Sava MM, Boulocher C, Matei C, Munteanu B, Schramme M, Viguier E, Roger T, Berthier Y, Blanchin MG, Trunfio-Sfarghiu AM. Structural and tribological study of healthy and biomimetic SF. Comput Methods Biomech Biomed Engin 2013; 16 Suppl 1:216-8. [DOI: 10.1080/10255842.2013.815866] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Gibert S, Carozzo C, Cachon T, Fau D, Genevois JP, Viguier E. Evaluation of the effectiveness of bandages on restricting carpus range of motion in healthy dogs at a walk using electrogoniometry. Comput Methods Biomech Biomed Engin 2013; 15 Suppl 1:140-2. [PMID: 23009456 DOI: 10.1080/10255842.2012.713730] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- S Gibert
- Centre Hospitalier Vétérinaire Frégis, Arcueil, France
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Pillard P, Gibert S, Viguier E. 3D accelerometric assessment of the gait of dogs with cranial cruciate ligament rupture. Comput Methods Biomech Biomed Engin 2013; 15 Suppl 1:129-31. [PMID: 23009452 DOI: 10.1080/10255842.2012.713654] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- P Pillard
- UPSP 2011.03.101 ICE, VetAgro Sup, Marcy l'étoile, France
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Affiliation(s)
- P Pillard
- ICE (UPSP 2011.03.101), Campus vétérinaire de Lyon, VetAgro Sup, Marcy l'étoile, France
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Kavaguchi De Grandis A, Boulocher C, Viguier E, Roger T, Sawaya S. Ultrasonograph and clinical quantitative characterization of tendinopathy by modified splitting in a goat model. ScientificWorldJournal 2012; 2012:472023. [PMID: 22997496 PMCID: PMC3444857 DOI: 10.1100/2012/472023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2012] [Accepted: 07/16/2012] [Indexed: 12/03/2022] Open
Abstract
A tendinopathy is a clinical condition characterized by activity-related pain, focal tendons tenderness, and intratendinous imaging changes. This study characterizes a surgically induced tendinopathy in a goat model with a noninvasive in vivo longitudinal followup based on physical examination and US. Cross-sectional area (CSA) is the most objective feature for the evaluation of tendinopathy in correlation with clinical findings. The deep digital flexor tendon (DDFT) of the left hind limb of six goats was isolated and scarified by a modified splitting. Pain and lameness at walk and trot were evaluated. External width and thickness of tendon region were measured by calipers. CSA and the ratio lesion/tendon CSA were obtained at days 0, 7, 21, 42, and 84 by US. The highest value of global functional score was obtained at day 7, then decreased until day 40 and was not significantly different from day 0 at the end of the study. The external width recovered a normal value at the end of the study, but the external thickness was still significantly increased (P < 0.05). Peritendinous oedema was observed at day 7, but intratendinous lesions were visible only at day 21 as a focal hypo to anechoic area. At day 84, two tendons still presented visible lesions. US examination was reproducible, specific, and provided complementary information to the global functional score. A standardized focal tendinopathy was induced in goats. This experimental model of focal tendinopathy could be used to study the effect of different treatments.
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Affiliation(s)
- A Kavaguchi De Grandis
- Université de Lyon et VetAgro Sup, Campus Vétérinaire de Lyon, UPSP ICE, 69280 Marcy l'Etoile, France.
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Viguier E, Bignon A, Laurent F, Goehrig D, Boivin G, Chevalier J. A new concept of gentamicin loaded HAP/TCP bone substitute for prophylactic action: in vivo pharmacokinetic study. J Mater Sci Mater Med 2011; 22:879-886. [PMID: 21455679 DOI: 10.1007/s10856-011-4279-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2009] [Accepted: 03/06/2011] [Indexed: 05/30/2023]
Abstract
Despite systemic prophylaxis, infection rates after orthopedic surgery can reach more than 1%. A new HAP/TCP bone substitute loaded with 125 mg of gentamicin was designed for prophylactic use. Its aim was to enhance the efficacy of systemic prophylactic treatments by increasing the local antibiotic concentration. The release rate of gentamicin from the bone substitute was investigated after implantation in the femoral condyle of five sheep. In order to investigate the local and systemic gentamicin concentrations, synovial fluids and blood samples were assessed over a 5-day period. The mean gentamicin concentration peak in blood was 4.2 μg/ml and the mean local concentration in synovial fluids during the first 8 h was 305 μg/ml. After 48 h, the concentrations in blood and synovial fluids were less than 0.5 μg/ml. No remaining gentamicin was detected in bone substitutes explanted after 8 days of implantation. The gentamicin release rate from the bone substitutes assessed corresponds to the recommendations for the prophylactic use of antibiotics: high local concentration but limited in time (less than 48 h) not to select antibiotic-resistant bacterial strains. Our results indicated that this implant should be an effective prophylactic tool in orthopedic surgery in combination with systemic prophylaxis.
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Affiliation(s)
- E Viguier
- Campus vétérinaire, VetAgro Sup membre de l'Université de Lyon, UPSP 2007-03-135 RTI2B, Réparation Tissulaire, Interactions Biologiques et Biomatériaux, 1 Avenue Bourgelat, 69280 Marcy l'Etoile, France
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Gibert S, Lequang T, Maitre P, Poujol L, Cachon T, Carozzo C, Fau D, Genevois J, Viguier E. Sensitivity and specificity to determine lameness in dogs with a pressure walkway system. Comput Methods Biomech Biomed Engin 2010. [DOI: 10.1080/10255842.2010.493724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Cachon T, Lafon Y, Dumas R, Odent T, Viguier R, Viguier E. Morphometric analysis of vertebral deformities in a porcine scoliosis model. Comput Methods Biomech Biomed Engin 2010. [DOI: 10.1080/10255842.2010.491949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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35
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Affiliation(s)
- K Portier
- Ecole Nationale Vétérinaire de Lyon, Marcy l'Etoile, France.
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Odent T, Cachon T, Peultier B, Gournay J, Jolivet E, Viguier E. Porcine scoliosis model based on animal growth created with non-invasive off-set tethering. Comput Methods Biomech Biomed Engin 2009. [DOI: 10.1080/10255840903093359] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Colin A, Le Quang T, Poujol L, Maitre P, Viguier E. Kinetic and spatiotemporal modifications in normal dog gait induced by stair descent. Comput Methods Biomech Biomed Engin 2009. [DOI: 10.1080/10255840903077196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Chanoit G, Bublot I, Viguier E. Transient tricuspid valve regurgitation following surgical treatment of cor triatriatum dexter in a dog. J Small Anim Pract 2009; 50:241-5. [DOI: 10.1111/j.1748-5827.2008.00700.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Boulocher C, Duclos ME, Arnault F, Roualdes O, Fau D, Hartmann DJ, Roger T, Vignon E, Viguier E. Knee joint ultrasonography of the ACLT rabbit experimental model of osteoarthritis: relevance and effectiveness in detecting meniscal lesions. Osteoarthritis Cartilage 2008; 16:470-9. [PMID: 17889569 DOI: 10.1016/j.joca.2007.07.012] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/16/2007] [Accepted: 07/29/2007] [Indexed: 02/02/2023]
Abstract
OBJECTIVES To develop a protocol for rabbit knee joint ultrasonography (US); to grade ultrasonographically the meniscal injuries of the anterior cruciate ligament transection (ACLT) rabbit model of osteoarthritis (OA); to assess with US the effectiveness of the ACLT; to compare final US with macroscopy for the evaluation of medial and lateral meniscal injuries depending on the age and weight when ACLT is performed. METHODS Twenty-two skeletally mature and adolescent New Zealand white rabbits were housed during the same period at the Institut Claude-Bourgelat, Lyon, France. Surgical ACLT was performed in the left knee of nine adolescent and five adult rabbits. Final US and macroscopic semi-quantitative grading of the meniscal injuries were compared 5 months after ACLT. RESULTS A standardised protocol was developed to evaluate the rabbit knee joint. US was performed in both control and ACLT knees. Normal and abnormal meniscal US appearances were described. A semi-quantitative scale to grade US meniscal injuries was created. Macroscopic and US total meniscal scores were significantly positively correlated (P<0.001, r=0.70). US detection of meniscal injuries was 92% sensitive and 87.5% specific compared to macroscopy. Positive and negative predictive values of US were, respectively, 92% and 87.5%. US detection of the ACLT effectiveness was 100% specific and 78.5% sensitive. CONCLUSION A significant relationship was found between ultrasonographic and macroscopic grading of meniscal injuries. US was both specific and sensitive in detecting meniscal lesions. We propose US as a non-invasive, non-expensive, in vivo imaging technique for preclinical studies in the ACLT rabbit OA model.
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Affiliation(s)
- C Boulocher
- Université de Lyon, UR RTI2B, F-69003, France.
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Maitre P, Lequang T, Fau D, Genevois J, Viguier E. Hip dysplasia in dogs: correlation between clinical lameness score, radiographic findings and walkway gait analysis. Comput Methods Biomech Biomed Engin 2008. [DOI: 10.1080/10255840802297036] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Le Quang T, Maitre P, Colin A, Viguier E. Spatial, temporal and kinetic evaluation of normal cats at walk, using a pressure walkway. Comput Methods Biomech Biomed Engin 2008. [DOI: 10.1080/10255840802296855] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Boulocher C, Chereul E, Langlois JB, Armenean M, Duclos ME, Viguier E, Roger T, Vignon E. Non-invasive in vivo quantification of the medial tibial cartilage thickness progression in an osteoarthritis rabbit model with quantitative 3D high resolution micro-MRI. Osteoarthritis Cartilage 2007; 15:1378-87. [PMID: 17576081 DOI: 10.1016/j.joca.2007.04.012] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2006] [Accepted: 04/24/2007] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To develop a quantitative non-invasive in vivo three-dimensional (3D) high resolution (HR) micro-magnetic resonance imaging (microMRI) protocol to measure the medial tibial cartilage thickness (MT.ThC) in the normal rabbit and in the anterior cruciate ligament transection (ACLT) rabbit model of osteoarthritis and quantify the progression of MT.ThC. METHODS The left knee of 10 control and 40 operated rabbits was imaged in vivo with a 7T microMRI system at 3 and 5 months after ACLT. A 3D fast low angle short (FLASH) fat-suppressed MRI protocol was implemented leading to 44x176 microm(3) spatial resolution and to 44 microm(3) isotropic voxel after cubic interpolation. Semi-automatic MT.ThC measurements were made in 3D, in four different locations, in vivo and longitudinally in both groups. At 5 months, gross macroscopy, visual analogical evaluation of the cartilage and histology were compared to the MR-based MT.ThC. RESULTS At 3 and 5 months, the MT.ThC measured in the minimum interbone distance area was the thinnest MR-based MT.ThC. It was significantly lower in the operated group and among the four evaluated MT.ThC, it was the most discriminative between the normal and the operated groups (P<0.05). The MT.ThC measured in the minimum interbone distance area was also the most sensitive to change in the operated group (66.4% MT.ThC loss, P=0.003) while no significant changes were observed in the control group. CONCLUSION Quantitative 3D HR microMRI allowed for non-invasive longitudinal MT.ThC measurements in four different locations in both the normal and the operated rabbits. We concluded the MT.ThC measured in the minimum interbone distance area reflected the severity of the disease and was the most effective to measure the progression of the medial tibial cartilage destruction.
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Affiliation(s)
- C Boulocher
- Université de Lyon, UR RTI2B, Lyon F-69003, France.
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Le Quang T, Maitre P, Roger T, Viguier E. The GAITRite ®system for evaluation of the spatial and temporal parameters of normal dogs at a walk. Comput Methods Biomech Biomed Engin 2007. [DOI: 10.1080/10255840701479248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Viguier E, Le Quang T, Maitre P, Gaudin A, Rawling M, Hass D. The validity and reliability of the GAITRite®system's measurement of the walking dog. Comput Methods Biomech Biomed Engin 2007. [DOI: 10.1080/10255840701479297] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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46
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Genevois JP, Cachon T, Fau D, Carozzo C, Viguier E, Collard F, Remy D. Canine hip dysplasia radiographic screening. Prevalence of rotation of the pelvis along its length axis in 7,012 conventional hip extended radiographs. Vet Comp Orthop Traumatol 2007; 20:296-298. [PMID: 18038007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
The prevalence of rotation of the pelvis along its length axis was noted, as was the number of rotations towards the right or left hand side of the dog, on 7,012 conventional hip extended radiographs, which were sent for official screening. 29.8% of the radiographs showed a rotation the pelvis. The rotation was statistically more frequent towards the left hand side of the dog. The number of rejected radiographs for too important pelvis rotation was only 5.2%. The consequences of the pelvis rotation on the Norberg-Olsson angle, on the dorsal femoral head coverage, and in the aspect of cranial acetabular edge have to be taken into account when scoring the dog for hip dysplasia.
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Affiliation(s)
- J-P Genevois
- Small Animal Department, Surgery, School of Veterinary Medicine, Lyon, France.
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Maitre P, Arnault A, Verset M, Roger T, Viguier E. Chronic cranial cruciate ligament rupture in dog: four legs assessment with a walkway. Comput Methods Biomech Biomed Engin 2007. [DOI: 10.1080/10255840701479263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Maitre P, Poujol L, Lequang T, Thiebaut JJ, Viguier E. Jumping in dogs: concurrent assessment of four limbs with a portable electronic walkway. Comput Methods Biomech Biomed Engin 2007. [DOI: 10.1080/10255840701479214] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Abstract
Hip dysplasia (HD) scores, based on the five grades, as defined by the Fédération Cynologique Internationale, were compared between anaesthetized (group 1, n = 3839) and non-sedated non-anaesthetized dogs (group 2, n = 1517). Each dog was radiographed in the standard ventro-dorsal hip joint extended position. Each radiograph was evaluated by the same reader blinded regarding the dog's status of anaesthesia. Results showed that there was a significant difference in hip dysplasia prevalence between group 1 (22%) compared with group 2 (9%) (P < 0.005). This difference was the result of a lower rate of hip-joint laxity assessment and the measurement of Norberg-Olsson angle <105 degrees in group 2 compared with group 1. The acetabular and femoral morphologies were not significantly different between the groups. The data confirm that the scoring of dogs for HD on standard radiographs with the hip joints extended is influenced by anaesthesia.
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Affiliation(s)
- J-P Genevois
- Service de Chirurgie et d'Anesthésiologie, Ecole Nationale Vétérinaire de Lyon, 1 avenue Bourgelat, 69280 Marcy L'Etoile, France
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