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Filho TG, Rahal SC, Kano WT, Mesquista LR, Mamprim MJ, Silva JP, Agostinho FS. Gait Analysis of Amputee Dogs Using a Pressure-Sensitive Walkway. Vet Comp Orthop Traumatol 2024. [PMID: 38503301 DOI: 10.1055/s-0044-1779727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/21/2024]
Abstract
OBJECTIVE The aim of this study was to perform gait analysis using a pressure-sensitive walkway in dogs submitted to high (total) or low amputation (partial) of one forelimb or hindlimb. STUDY DESIGN A total of 39 dogs met the inclusion criteria. The reasons for the amputations were motor vehicle accidents in 38 dogs and possible limb malformation in 1 dog. The amputee dogs were divided into four groups: G1 (n = 10)-high forelimb; G2 (n = 10)-low forelimb; G3 (n = 9)-high hindlimb; and G4 (n = 10)-low hindlimb. For kinetic evaluation, the dogs were walked across a pressure-sensitive walkway. RESULTS In dogs with forelimb amputation, the percentage of body weight (%BW) distribution on the contralateral forelimb was 50.7% in cases of high amputation and 55.5% in cases of low amputation, while the %BW distribution on the hindlimbs, mainly in the ipsilateral hindlimb, was 27.9% in cases of high amputation and 27.1% in cases of low amputation. In cases of high amputation of the hindlimb, the %BW distribution was 71.5% on the forelimbs and 29.7% on the contralateral hindlimb, while in cases of low amputation, the distribution was mainly for the contralateral hindlimb and ipsilateral forelimb. No statistical difference was noted between the amputation levels, except for the contralateral limb in cases of low and high amputation of the hindlimbs concerning the overload percentage and %BW distribution. CONCLUSION The amputation level of one forelimb did not influence the %BW distribution; however, in the hindlimb, this was higher for the contralateral limb in dogs submitted to high amputation.
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Affiliation(s)
- Túlio G Filho
- Department of Veterinary Surgery and Animal Reproduction, School of Veterinary Medicine and Animal Science, São Paulo State University (UNESP), Botucatu, SP, Brazil
| | - Sheila C Rahal
- Department of Veterinary Surgery and Animal Reproduction, School of Veterinary Medicine and Animal Science, São Paulo State University (UNESP), Botucatu, SP, Brazil
| | - Washington T Kano
- Department of Veterinary Surgery and Animal Reproduction, School of Veterinary Medicine and Animal Science, São Paulo State University (UNESP), Botucatu, SP, Brazil
| | - Luciane R Mesquista
- Department of Veterinary Surgery and Animal Reproduction, School of Veterinary Medicine and Animal Science, São Paulo State University (UNESP), Botucatu, SP, Brazil
| | - Maria J Mamprim
- Department of Veterinary Surgery and Animal Reproduction, School of Veterinary Medicine and Animal Science, São Paulo State University (UNESP), Botucatu, SP, Brazil
| | - Jeana P Silva
- Department of Veterinary Surgery and Animal Reproduction, School of Veterinary Medicine and Animal Science, São Paulo State University (UNESP), Botucatu, SP, Brazil
| | - Felipe S Agostinho
- Department of Veterinary Surgery and Animal Reproduction, School of Veterinary Medicine and Animal Science, São Paulo State University (UNESP), Botucatu, SP, Brazil
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2
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Bourbos A, Piana F, Langley-Hobbs SJ. Total hip replacement in a cat with contralateral pelvic limb amputation. JFMS Open Rep 2024; 10:20551169241232297. [PMID: 38659651 PMCID: PMC11041533 DOI: 10.1177/20551169241232297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/26/2024] Open
Abstract
Case summary A 10-year-old male neutered domestic shorthair cat, which had previously had its contralateral pelvic limb amputated, was treated for coxofemoral degenerative joint disease (DJD) with a total hip replacement. The long-term outcome was favourable and no complications were recorded. Interestingly, the contralateral coxofemoral joint left at the time of the previous amputation developed DJD and became a source of pain for the cat and was subsequently excised. Relevance and novel information This case report shows that total hip replacement is a viable option in cats with coxofemoral DJD and a contralateral limb amputation. Retained joints in amputated limbs may develop osteoarthritis and be a source of pain for a cat.
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Affiliation(s)
- Alexandros Bourbos
- Langford Veterinary Hospital – University of Bristol, Langford, Bristol, UK
| | - Francesco Piana
- Langford Veterinary Hospital – University of Bristol, Langford, Bristol, UK
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3
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Goh WT, Drew J. Stifle arthrodesis in a feline pelvic limb amputee. JFMS Open Rep 2024; 10:20551169231217837. [PMID: 38223301 PMCID: PMC10785732 DOI: 10.1177/20551169231217837] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2024] Open
Abstract
Case summary A domestic shorthair cat presented to the Animal Referral Hospital (Brisbane, Australia) after having the left pelvic limb incorrectly amputated. The cat was unable to ambulate on the remaining right pelvic limb due to a chronically subluxated stifle. A stifle arthrodesis was performed on the right pelvic limb to manage the injury. Follow-up radiographs performed 5 months postoperatively demonstrated stifle arthrodesis with no detectable complications. The owner reported that aside from some difficulties in toileting, the cat had a good quality of life and was capable of performing the majority of daily activities. Stifle arthrodesis in a feline pelvic limb amputee appears to be a viable treatment option. After a period of rehabilitation and adaptation, the cat in the case report has been able to lead a near-normal lifestyle. Relevance and novel information To the authors' knowledge, this is the first report of the outcome and complications associated with stifle arthrodesis in a feline pelvic limb amputee. This is also the first report of stifle arthrodesis in a cat using the bilateral plating technique.
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Affiliation(s)
- Wei Tze Goh
- College of Veterinary Medicine, Murdoch University, Murdoch, WA, Australia
| | - Jarrod Drew
- Animal Referral Hospital, Sinnamon Park, QLD, Australia
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4
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Mendaza-DeCal R, Ballesteros Y, Peso-Fernandez S, del Real-Romero JC, Rodriguez-Quiros J. Biomechanical Tests on Long-Bone Elliptical Medullary-Canal Endoprostheses for Limb Salvage in Dogs. Animals (Basel) 2022; 12:ani12213021. [PMID: 36359145 PMCID: PMC9654555 DOI: 10.3390/ani12213021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Revised: 10/27/2022] [Accepted: 10/31/2022] [Indexed: 11/06/2022] Open
Abstract
Simple Summary Currently, more owners look for offering a better quality of life to their pets. In fact, the complete limb amputation seems to be the last option considered by pet owners in surgeries to save their pets’ lives. Although this field is under development in veterinary medicine, we believe that 3D-printed implants for this market sector will improve the advancement in its research by reducing production costs. This would allow the pet owners to select this solution without large expenses, allowing at the same time, advances in this field. For this purpose, mechanical tests have been carried out on implants printed in a high-performance plastic that resembles the resistance of metals—that are traditionally used in veterinary surgery—and the properties of dogs’ bones as well. The results obtained have confirmed that the implants could withstand the dog weight in its different gaits, although further comparative studies on the effect of rotation forces applied during the animal’s change of direction (evaluated at different paces) are required to confirm their suitability. Abstract Exo-endoprosthesis is a limb salvage procedure poorly described for animals, as only expensive metal devices have been used so far. Currently, additive manufacturing (AM) can make this type of implant affordable by exploring a wide new range of materials. However, safety factors should be considered and could be related to kinetic and kinematic studies of canine natural gaits. The suitability of a novel inner part of an exo-endoprosthesis manufactured by fuse deposition modeling (FDM) was assessed for long canine bones with an elliptical medullary canal. Polyether ether ketone (PEEK) was the material used as an alternative to metal for veterinary traumatology. Poisson’s ratio of 3D-printed PEEK material and ex vivo mechanical tests of the customized endoprosthesis were performed for the evaluation. The customized endoprostheses had promising outcomes for the radii of 20 kg dogs. Quasistatic mechanical tests of bone-inserted endoprostheses—pure compression tests—reached a maximum force of 1045.0 ± 78.0 N. In fatigue tests, the samples reached 500,000 cycles without failure or detriment to their quasistatic results. These outcomes surpass the natural weight-bearing of dogs, even during a galloping pace. Furthermore, torque tests with different adhesives were performed to obtain reference data for future assessments comparing with natural dog movements.
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Affiliation(s)
- Rosa Mendaza-DeCal
- Animal Medicine and Surgery Department, Veterinary Faculty, Complutense University of Madrid, 28040 Madrid, Spain
- Abax Innovation Technologies, 28691 Villanueva de la Cañada, Spain
- Correspondence: ; Tel.: +34-630816789
| | - Yolanda Ballesteros
- Mechanical Engineering Department, Institute for Research in Technology, Universidad Pontificia Comillas, 28015 Madrid, Spain
| | | | - Juan Carlos del Real-Romero
- Mechanical Engineering Department, Institute for Research in Technology, Universidad Pontificia Comillas, 28015 Madrid, Spain
| | - Jesus Rodriguez-Quiros
- Animal Medicine and Surgery Department, Veterinary Faculty, Complutense University of Madrid, 28040 Madrid, Spain
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5
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Adrian D, Brown D. Kinetic symmetry indices and standing gait analysis: A review of current methods and data. Vet J 2022; 281:105814. [PMID: 35278691 DOI: 10.1016/j.tvjl.2022.105814] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Revised: 01/24/2022] [Accepted: 03/07/2022] [Indexed: 11/26/2022]
Abstract
Kinetic gait data is used to evaluate a dog's orthopedic soundness and to assess treatment response in clinical trials. It captures ground reaction forces (GRFs) generated by the interactions between an animal's limb and the ground and can be collected using force plates and pressure sensitive walkways. Historically, gait data were most commonly analyzed from a single, most clinically affected, limb produced while the dog walks or trots. More recently, symmetry indices, calculated using multiple methods, have been used to evaluate forces between paired limbs, as a method of evaluating multi-joint disease. However, when dogs are non-weight bearing lame (NWB) or have extreme mobility impairment, walking or trotting data can be difficult or impossible to collect. For these instances, standing gait analysis has been suggested as an option to collect non-zero data points. This review focuses on the reported methods of data collection for standing gait data, as well as methods of symmetry index calculation, and their use reported in the veterinary literature.
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Affiliation(s)
- Derek Adrian
- Elanco Animal Health, Greenfield, Indiana, 46140 USA.
| | - Dottie Brown
- Elanco Animal Health, Greenfield, Indiana, 46140 USA
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Bio-Inspired Modular Relative Jacobian for Holistically Controlled Four-Arm Manipulators Using Opposite and Adjacent Dual-Arm Pairs. ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING 2022. [DOI: 10.1007/s13369-021-06046-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Willen M, Lorke M, Wefstaedt P, Lucas K, Nolte I. An individually adjusted endurance test reveals differences in physical fitness between young and old Beagles. TIERAERZTLICHE PRAXIS AUSGABE KLEINTIERE HEIMTIERE 2021; 49:165-172. [PMID: 34157758 DOI: 10.1055/a-1498-8526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
OBJECTIVE Aim was to establish an individually adapted endurance test for dogs on a treadmill, which takes the individual's physical condition into account. To check the applicability of the test, two age groups of clinically healthy beagles were examined. METHODS A total of 10 clinically healthy Beagles were enrolled and divided in a younger (1-3 years, n = 5) and older group (> 8 years, n = 5). The individual comfort gait speed of each dog was determined on a treadmill with integrated force plates. A maximal time of 20 minutes at trot was set for the endurance test. The test was terminated prematurely if the dog showed signs of fatigue (massive panting, unwillingness to move further). Blood samples were taken at general examination (G), prior to (B) and post exercise (P) for determination of lactate level (LL), oxygen and carbon dioxide partial pressure (pO2, pCO2), bicarbonate (HCO3 -), base excess (BE) and pH. On each occasion (G, B, P) heart rate (HR) and respiratory rate (RR) were recorded. Additionally, vertical ground reaction forces (Fz) were analysed. RESULTS The older dogs (age: 10.4 ± 0.89 years) completed the test with less speed and duration compared to the younger dogs (age: 2.4 ± 0.89 years), which managed to complete the maximum time. Lactate levels in the older dogs were higher than in the younger dogs at all timepoints of examination. Contrary to the younger dogs, there was no significant increase in the heart rate of the older dogs. Ground reaction forces were not significantly different between the groups. CONCLUSION AND CLINICAL RELEVANCE Whereas standardised endurance tests allow for the comparison of fitness levels between dogs, an individually adjusted endurance test aims at objectively determining the physical fitness of the single dog taking into account its individual performance. Such a test allows to examine the individual performance development over time and to evaluate medicinal therapies or dietary measures, e. g. in aging dogs. HR, RR, LL, blood gases (pCO2, pO2) and acid-base metabolism (HCO3 -, BE, pH) were found to be appropriate parameters for determining the physical capacity of the dogs during endurance tests as these parameters change under physical stress and are indicative for the onset of fatigue.
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Affiliation(s)
| | | | - Patrick Wefstaedt
- Clinic for Small Animals, University of Veterinary Medicine, Foundation
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8
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Devereux S, Jack M, Worth A, Bridges J. Calcaneotibial screws for immobilisation of the tarsocrural joint of dogs in extension: effect of the angle of screw placement on the force to failure in a canine cadaveric model. N Z Vet J 2021; 69:294-298. [PMID: 34013827 DOI: 10.1080/00480169.2021.1931522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
AIMS To compare the force to failure under axial loading of a calcaneotibial screw placed approximately perpendicular to the tibia with that of a screw placed perpendicular to the calcaneus, when used to immobilise the tarsus in an ex vivo canine model. METHODS Twelve pairs of cadaveric hindlimbs from large breed dogs, without orthopaedic or soft tissue disease, were prepared by transecting the limb at the level of the stifle and stripping the limbs of all musculature from the stifle to mid-metatarsus, including removal of the common calcaneal tendon from all limbs. The limbs in each pair were randomly assigned to receive a calcaneotibial screw placed perpendicular to the long axis of either the calcaneus (C group) or the tibia (T group) with the tarsus in full extension. The distal limb was potted in resin and the proximal tibia was pinned to allow biomechanical testing in compressive loading. Testing was performed to apply an axial load using a material testing machine in a proximodistal direction through the tibia, advancing at a rate of 10 mm/second. The force to failure was recorded in kN and compared between groups. RESULTS The median force to failure of the C group was 0.86 (min 0.50; max 1.64) kN which was higher than the T group which had a median force to failure of 0.74 (min 0.26, max1.05) kN (p = 0.004). All modes of failure were by screw pull-out. CONCLUSIONS A calcaneotibial screw placed at an angle approximately perpendicular to the long axis of the calcaneus, has a higher force to failure under axial loading than a calcaneotibial screw that is placed at an angle approximately perpendicular to the tibia, in a canine cadaveric model. CLINICAL RELEVANCE A temporary calcaneotibial screw is a common method of immobilising the tarsus in extension to protect primary repair of a common calcaneal tendon injury. Placing a calcaneotibial screw perpendicular to the calcaneus may be a more reliable option for immobilisation of the tarsus to protect a common calcaneal tendon repair compared to screws placed perpendicular to the tibia. However extrapolation of these results into a clinical setting requires caution.
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Affiliation(s)
- S Devereux
- Massey University Veterinary Teaching Hospital, School of Veterinary science, Massey University, Palmerston North, New Zealand
| | - M Jack
- Cave Veterinary Specialists, Wellington, UK
| | - A Worth
- Massey University Veterinary Teaching Hospital, School of Veterinary science, Massey University, Palmerston North, New Zealand
| | - J Bridges
- Massey University Veterinary Teaching Hospital, School of Veterinary science, Massey University, Palmerston North, New Zealand
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9
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Pfeiffenberger JA, Hsieh ST. Autotomy-induced effects on the locomotor performance of the ghost crab Ocypode quadrata. J Exp Biol 2021; 224:238065. [PMID: 33785503 DOI: 10.1242/jeb.233536] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Accepted: 03/23/2021] [Indexed: 02/02/2023]
Abstract
The voluntary amputation of an appendage, or autotomy, is an effective defensive mechanism that allows an animal to escape aggressive interactions. However, animals may suffer long-term costs that can reduce their overall fitness. Atlantic ghost crabs (Ocypode quadrata) are one of the fastest terrestrial invertebrates, and regularly lose one or more limbs in response to an antagonist encounter. When running laterally at fast speeds, they adopt a quadrupedal gait using their first and second pairs of legs while raising their fourth, and sometimes the third, pair of legs off the ground. This suggests that some limbs may be more important for achieving maximal locomotor performance than others. The goal of this study was to determine whether the loss of certain limbs would affect running performance more than others, and what compensatory strategies were used. Crabs were assigned to four different paired limb removal treatments or the control group and run on an enclosed trackway in their natural habitat. Ghost crabs were found to adjust stride kinematics in response to limb loss. Loss of the second or third limb pairs caused a reduction in running speed by about 25%, suggesting that the remaining intact limbs were unable to compensate for the loss of either limb, either due to a lack of propulsive forces produced by these limbs or issues stemming from re-coupling limb arrangements. Loss of any of the other limbs had no detectable effect on running speed. We conclude that compensatory ability varies depending on the limb that is lost.
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Affiliation(s)
| | - S Tonia Hsieh
- Department of Biology, Temple University, Philadelphia, PA 19122, USA
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10
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Gifford AB, Lotsikas PJ, Liska WD, Israel SK, Rochat MC, Saunders WB, Guiot LP, Marcellin-Little DJ, Benjamino KP, Dyce J. Total hip replacement in dogs with contralateral pelvic limb amputation: A retrospective evaluation of 13 cases. Vet Surg 2020; 49:1487-1496. [PMID: 32916005 DOI: 10.1111/vsu.13513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2020] [Revised: 07/28/2020] [Accepted: 08/10/2020] [Indexed: 11/28/2022]
Abstract
OBJECTIVE To report the clinical characteristics, surgical management, and medium-term outcomes of total hip replacement (THR) performed in dogs with previous contralateral pelvic limb amputation. ANIMALS Thirteen client-owned dogs. STUDY DESIGN Multi-institutional retrospective clinical study. METHODS Data recorded from medical records included signalment, indication for amputation and THR, and surgical complications. Implant positioning and complications were assessed on radiographs. Clinical outcomes were evaluated during follow-up examinations by one of the authors and through a mobility- and lifestyle-based questionnaire completed by owners. RESULTS All 13 dogs had satisfactory clinical results at follow-up a median of 3 months (range, 2-36) after THR. No postoperative luxation was recorded. Four dogs had minor complications that did not require additional treatment. The only major complication was one failure of osseointegration of a cementless acetabular cup, and it was successfully revised. CONCLUSION Total hip replacement resulted in satisfactory clinical results and acceptable morbidity in this population. CLINICAL SIGNIFICANCE Total hip replacement should be considered in dogs with severe coxofemoral joint disease and contralateral pelvic limb amputation.
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Affiliation(s)
- Amy B Gifford
- Virginia Veterinary Surgical Associates - BluePearl, Richmond, Virginia
| | | | - William D Liska
- Global Veterinary Specialists PLLC, Houston, Texas.,South Texas Veterinary Specialists - BluePearl Stone Oak, San Antonio, Texas
| | - Sarah K Israel
- South Texas Veterinary Specialists - BluePearl Stone Oak, San Antonio, Texas
| | - Mark C Rochat
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Purdue University, Indiana
| | - W Brian Saunders
- Department of Small Animal Clinical Sciences, College of Veterinary Medicine & Biomedical Sciences, Texas A&M University, College Station, Texas
| | - Laurent P Guiot
- ACCESS Bone & Joint Center, ACCESS Animal Specialty Hospitals, Culver City, California
| | - Denis J Marcellin-Little
- Department of Veterinary Surgical and Radiological Sciences, College of Veterinary Medicine, University of California-Davis, Davis, California
| | | | - Jonathan Dyce
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, The Ohio State University, Columbus, Ohio
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Ben-Amotz R, Dycus D, Levine D, Arruda AG, Fagan N, Marcellin-Little D. Stance and weight distribution after tibial plateau leveling osteotomy in fore limb and hind limb amputee dogs. BMC Vet Res 2020; 16:188. [PMID: 32522203 PMCID: PMC7288689 DOI: 10.1186/s12917-020-02402-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Accepted: 06/02/2020] [Indexed: 11/10/2022] Open
Abstract
Background Little is known about the weight distribution to the remaining limbs for amputee dogs that undergo orthopedic surgery. The objective of the paper was to describe stance and weight distribution after tibial plateau leveling osteotomy (TPLO) in forelimb and in hind limb amputees (AmpTPLO) and to compare them to four-legged TPLO patients (4LTPLO) and amputees without TPLO (Amp). Weight bearing distribution at a stance was compared between groups. Joint angles of forelimb and hind limb joints in a sagittal plane, hind limb orientation in a frontal plane, and pelvic orientation in a transverse plane (pelvic tilt) were measured and compared between groups. Results Joint angles, hind limb abduction, and pelvic tilt of AmpTPLO and Amp did not differ statistically. Mean weight bearing in the operated hind limb was higher for AmpTPLO than 4LTPLO. Mean weight bearing for thoracic limbs of AmpTPLO and 4LTPLO did not differ statistically. Weight bearing of the hind limb of AmpTPLO and Amp did not differ statistically. Conclusions The position of the center of mass and posture of AmpTPLO and Amp does not differ. The weight distribution and posture of Amp is not impacted negatively by TPLO.
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Affiliation(s)
- Ron Ben-Amotz
- Small Animal Orthopedics, Koret School of Veterinary Medicine, Rehovot, Israel. .,The Hebrew University of Jerusalem, P.O Box 12, 76100, Rehovot, Israel.
| | - David Dycus
- American College of Veterinary Surgeons - Small Animal, Veterinary Orthopedic and Sports Medicine Group, 10975 Guilford Rd Annapolis Junction, Philadelphia, MD, 20701, USA
| | - David Levine
- Department of Physical Therapy, The University of Tennessee at Chattanooga, 615 McCallie Ave Dept #3253, Chattanooga, USA
| | - Andréia Gonçalves Arruda
- A194 Department of Veterinary Preventive Medicine, College of Veterinary Medicine, The Ohio State University, Columbus, USA
| | - Nicholas Fagan
- Veterinary Surgery and Emergency Center, 1114, Philadelphia, South Front Street, 19147, USA
| | - Denis Marcellin-Little
- American College of Veterinary Surgeons, Germantown, MD, USA.,American College of Veterinary Sports Medicine and Rehabilitation (Charter), Camas, WA, USA.,Small Animal Orthopedic Surgery, University of California, Davis, USA
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12
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Lorke M, Willen M, Lucas K, Schille JT, Lüder Ripoli F, Willenbrock S, Beyerbach M, Wefstaedt P, Murua Escobar H, Nolte I. Effect of antioxidants, mitochondrial cofactors and omega-3 fatty acids on telomere length and kinematic joint mobility in young and old shepherd dogs - A randomized, blinded and placebo-controlled study. Res Vet Sci 2020; 129:137-153. [PMID: 32000015 DOI: 10.1016/j.rvsc.2020.01.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2019] [Revised: 11/23/2019] [Accepted: 01/08/2020] [Indexed: 12/18/2022]
Abstract
In dogs, decreasing telomere length is a biomarker for cellular aging. On a systemic level, aging affects the locomotor system in particular, leading to restricted joint mobility. As aging is thought to be related to oxidative stress, it may be counteracted by a diet enriched with antioxidants, mitochondrial cofactors and omega-3 fatty acids. This randomized, blinded and placebo-controlled study examined the influence of an accordingly enriched diet compared to a control diet on 36 young and 38 old shepherd dogs. At the outset, after 3 and after 6 months, mean and minimum telomere lengths were measured. Furthermore, minimum and maximum joint angles and range of motion of the shoulder, elbow, carpal, hip, stifle and tarsal joints were measured by computer-assisted gait analysis. A positive influence of the enriched diet on old dogs could be verified for minimum telomere length and all three parameters of the shoulder joint on the side with the higher vertical ground reaction force after 6 months. In the other joints there were less significant differences; in some cases they indicated a contrary influence of the enriched diet on young dogs, probably due to its reduced protein content. The greater effect of the enriched diet on minimum than on mean telomere length may be due to the higher preference of telomerase for short telomeres. The greater effect on shoulder joint mobility is explained by the greater influence of musculature and connective tissue in this joint. For elderly dogs it is advisable to feed these nutritional supplements.
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Affiliation(s)
- Malin Lorke
- Small Animal Clinic, University of Veterinary Medicine Hannover, Foundation, D-30559 Hannover, Germany
| | - Maray Willen
- Small Animal Clinic, University of Veterinary Medicine Hannover, Foundation, D-30559 Hannover, Germany
| | - Karin Lucas
- Small Animal Clinic, University of Veterinary Medicine Hannover, Foundation, D-30559 Hannover, Germany
| | - Jan Torben Schille
- Small Animal Clinic, University of Veterinary Medicine Hannover, Foundation, D-30559 Hannover, Germany
| | - Florenza Lüder Ripoli
- Small Animal Clinic, University of Veterinary Medicine Hannover, Foundation, D-30559 Hannover, Germany; Division of Medicine Clinic III, Hematology, Oncology and Palliative Medicine, University of Rostock, D-18057 Rostock, Germany
| | - Saskia Willenbrock
- Small Animal Clinic, University of Veterinary Medicine Hannover, Foundation, D-30559 Hannover, Germany
| | - Martin Beyerbach
- Institute for Biometry, Epidemiology and Information Processing, University of Veterinary Medicine Hannover, Foundation, D-30559 Hannover, Germany
| | - Patrick Wefstaedt
- Small Animal Clinic, University of Veterinary Medicine Hannover, Foundation, D-30559 Hannover, Germany
| | - Hugo Murua Escobar
- Small Animal Clinic, University of Veterinary Medicine Hannover, Foundation, D-30559 Hannover, Germany; Division of Medicine Clinic III, Hematology, Oncology and Palliative Medicine, University of Rostock, D-18057 Rostock, Germany
| | - Ingo Nolte
- Small Animal Clinic, University of Veterinary Medicine Hannover, Foundation, D-30559 Hannover, Germany.
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13
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Lewis MJ, Williams KD, Langley T, Jarvis LM, Sawicki GS, Olby NJ. Development of a Novel Gait Analysis Tool Measuring Center of Pressure for Evaluation of Canine Chronic Thoracolumbar Spinal Cord Injury. J Neurotrauma 2019; 36:3018-3025. [PMID: 31044646 DOI: 10.1089/neu.2019.6479] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Gait evaluation after spinal cord injury (SCI) is an important component of determining functional status. Analysis of center of pressure (COP) provides a dynamic reflection of global locomotion and postural control and has been used to quantify various gait abnormalities. We hypothesized that COP variability would be greater for SCI versus normal dogs and that COP would be able to differentiate varying injury severity. Our objective was to investigate COP, COP variability, and body weight support percentage in dogs with chronic SCI. Eleven chronically non-ambulatory dogs after acute severe thoracolumbar SCI were enrolled. COP measurements in x (right-to-left, COPx) and y (craniocaudal, COPy) directions were captured while dogs walked on a pressure-sensitive treadmill with pelvic limb sling support. Root mean square values (RMS_COPx and RMS_COPy) were calculated to assess variability in COP. Body weight support percentage was measured using a load cell. Gait also was quantified using an open field scale (OFS) and treadmill-based stepping and coordination scores (SS, RI). Mean COPx, COPy, RMS_COPx, and RMS_COPy were compared between dogs with SCI and previously evaluated healthy controls. RMS measurements and support percentage were compared with standard gait scales (OFS, SS, RI). Mean COPy was more cranial and RMS_COPx and RMS_COPy were greater in SCI versus normal dogs (p < 0.001). Support percentage moderately correlated with SS (p = 0.019; R2 = 0.47). COP analysis and body weight support measurements offer information about post-injury locomotion. Further development is needed before consideration as an outcome measure to complement validated gait analysis methods in dogs with SCI.
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Affiliation(s)
- Melissa J Lewis
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Purdue University, West Lafayette, Indiana
| | | | - Taylor Langley
- Campbell University Norman Adrian Wiggins School of Law, Raleigh, North Carolina
| | | | - Gregory S Sawicki
- George W. Woodruff School of Mechanical Engineering and School of Biological Sciences, Georgia Institute of Technology, Atlanta, Georgia
| | - Natasha J Olby
- Department of Clinical Sciences, North Carolina State University, Raleigh, North Carolina.,Comparative Medicine Institute, North Carolina State University, Raleigh, North Carolina
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Jarrell JR, Farrell BJ, Kistenberg RS, Dalton JF, Pitkin M, Prilutsky BI. Kinetics of individual limbs during level and slope walking with a unilateral transtibial bone-anchored prosthesis in the cat. J Biomech 2018; 76:74-83. [PMID: 29861094 PMCID: PMC6062466 DOI: 10.1016/j.jbiomech.2018.05.021] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2017] [Revised: 03/21/2018] [Accepted: 05/13/2018] [Indexed: 12/29/2022]
Abstract
Ongoing animal preclinical studies on transcutaneous bone-anchored prostheses have aimed to improve biomechanics of prosthetic locomotion in people with limb loss. It is much less common to translate successful developments in human biomechanics and prosthetic research to veterinary medicine to treat animals with limb loss. Current standard of care in veterinary medicine is amputation of the whole limb if a distal segment cannot be salvaged. Bone-anchored transcutaneous prostheses, developed for people with limb loss, could be beneficial for veterinary practice. The aim of this study was to examined if and how cats utilize the limb with a bone-anchored passive transtibial prosthesis during level and slope walking. Four cats were implanted with a porous titanium implant into the right distal tibia. Ground reaction forces and full-body kinematics were recorded during level and slope (±50%) walking before and 4-6 months after implantation and prosthesis attachment. The duty factor of the prosthetic limb exceeded zero in all cats and slope conditions (p < 0.05) and was in the range of 45.0-60.6%. Thus, cats utilized the prosthetic leg for locomotion instead of walking on three legs. Ground reaction forces, power and work of the prosthetic limb were reduced compared to intact locomotion, whereas those of the contralateral hind- and forelimbs increased (p < 0.05). This asymmetry was likely caused by insufficient energy generation for propulsion by the prosthetic leg, as no signs of pain or discomfort were observed in the animals. We concluded that cats could utilize a unilateral bone-anchored transtibial prosthesis for quadrupedal level and slope locomotion.
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Affiliation(s)
- Joshua R Jarrell
- School of Biological Sciences, Georgia Institute of Technology, Atlanta, GA, USA
| | - Brad J Farrell
- Department of Physical Therapy, Georgia State University, Atlanta, GA, USA
| | - Robert S Kistenberg
- School of Biological Sciences, Georgia Institute of Technology, Atlanta, GA, USA
| | | | - Mark Pitkin
- Tufts University School of Medicine, Boston, MA, USA; Poly-Orth International, Sharon, MA, USA
| | - Boris I Prilutsky
- School of Biological Sciences, Georgia Institute of Technology, Atlanta, GA, USA.
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Goldner B, Fischer S, Nolte I, Schilling N. Kinematic adaptions to induced short-term pelvic limb lameness in trotting dogs. BMC Vet Res 2018; 14:183. [PMID: 29895307 PMCID: PMC5998594 DOI: 10.1186/s12917-018-1484-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Accepted: 05/03/2018] [Indexed: 11/18/2022] Open
Abstract
Background Lameness due to paw injuries is common in the clinical practice. Although many studies investigated gait adaptations to diseases or injuries, mainly of the hip and knee, our understanding of the biomechanical coping mechanisms that lame dogs utilize is limited. Therefore, this study evaluated the kinematic changes associated with an induced, load-bearing pelvic limb lameness in healthy dogs trotting on a treadmill. Kinematic analysis included spatio-temporal comparisons of limb, joint and segment angles of all limbs. Key parameters compared between sound and lame conditions were: angles at touch-down and lift-off, minimum and maximum joint angles and range of motion. Results Significant differences were identified in each limb during both stance and swing phases. The most pronounced differences concerned the affected pelvic limb, followed by the contralateral pelvic limb, the contralateral thoracic limb and, to the least degree, the ipsilateral thoracic limb. The affected limb was retracted more, while the contralateral limb was protracted more, consistent with this limb bearing more body weight in lame dogs. Conclusions Kinematic adaptations involved almost all segment and joint angles in the pelvic limbs, while they exclusively concerned distal parts of the thoracic limbs. Comparisons with tripedal locomotion reveal several striking similarities, implying that dogs use similar principles to cope with a partial or a total loss in limb function. Because kinematic alterations occurred in all limbs and not just the affected one, all limbs should be included in routine follow-ups and be part of the diagnostic and therapeutic care of canine patients. Electronic supplementary material The online version of this article (10.1186/s12917-018-1484-2) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Birte Goldner
- Foundation, Small Animal Clinic, University of Veterinary Medicine Hannover, Hannover, Germany
| | - Stefanie Fischer
- Foundation, Small Animal Clinic, University of Veterinary Medicine Hannover, Hannover, Germany
| | - Ingo Nolte
- Foundation, Small Animal Clinic, University of Veterinary Medicine Hannover, Hannover, Germany.
| | - Nadja Schilling
- Institute of Systematic Zoology and Evolutionary Biology, Friedrich-Schiller-University, Jena, Germany
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Fuchs A, Anders A, Nolte I, Schilling N. Limb and back muscle activity adaptations to tripedal locomotion in dogs. ACTA ACUST UNITED AC 2015. [DOI: 10.1002/jez.1936] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Aniela Fuchs
- Small Animal Clinic; University of Veterinary Medicine Hannover; Foundation; Hannover Germany
| | - Alexandra Anders
- Institute of Systematic Zoology and Evolutionary Biology; Friedrich-Schiller-University; Jena Germany
| | - Ingo Nolte
- Small Animal Clinic; University of Veterinary Medicine Hannover; Foundation; Hannover Germany
| | - Nadja Schilling
- Institute of Systematic Zoology and Evolutionary Biology; Friedrich-Schiller-University; Jena Germany
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18
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Goldner B, Fuchs A, Nolte I, Schilling N. Kinematic adaptations to tripedal locomotion in dogs. Vet J 2015; 204:192-200. [DOI: 10.1016/j.tvjl.2015.03.003] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2014] [Revised: 03/01/2015] [Accepted: 03/02/2015] [Indexed: 11/15/2022]
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