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Liang W, Zhou C, Zhang H, Bai J, Jiang B, Jiang C, Ming W, Zhang H, Long H, Huang X, Zhao J. Recent advances in 3D printing of biodegradable metals for orthopaedic applications. J Biol Eng 2023; 17:56. [PMID: 37644461 PMCID: PMC10466721 DOI: 10.1186/s13036-023-00371-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Accepted: 07/31/2023] [Indexed: 08/31/2023] Open
Abstract
The use of biodegradable polymers for treating bone-related diseases has become a focal point in the field of biomedicine. Recent advancements in material technology have expanded the range of materials suitable for orthopaedic implants. Three-dimensional (3D) printing technology has become prevalent in healthcare, and while organ printing is still in its early stages and faces ethical and technical hurdles, 3D printing is capable of creating 3D structures that are supportive and controllable. The technique has shown promise in fields such as tissue engineering and regenerative medicine, and new innovations in cell and bio-printing and printing materials have expanded its possibilities. In clinical settings, 3D printing of biodegradable metals is mainly used in orthopedics and stomatology. 3D-printed patient-specific osteotomy instruments, orthopedic implants, and dental implants have been approved by the US FDA for clinical use. Metals are often used to provide support for hard tissue and prevent complications. Currently, 70-80% of clinically used implants are made from niobium, tantalum, nitinol, titanium alloys, cobalt-chromium alloys, and stainless steels. However, there has been increasing interest in biodegradable metals such as magnesium, calcium, zinc, and iron, with numerous recent findings. The advantages of 3D printing, such as low manufacturing costs, complex geometry capabilities, and short fabrication periods, have led to widespread adoption in academia and industry. 3D printing of metals with controllable structures represents a cutting-edge technology for developing metallic implants for biomedical applications. This review explores existing biomaterials used in 3D printing-based orthopedics as well as biodegradable metals and their applications in developing metallic medical implants and devices. The challenges and future directions of this technology are also discussed.
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Grants
- (LGF22H060023 to WQL) Public Technology Applied Research Projects of Zhejiang Province
- (2022KY433 to WQL, 2023KY1303 to HGL) Medical and Health Research Project of Zhejiang Province
- (2022KY433 to WQL, 2023KY1303 to HGL) Medical and Health Research Project of Zhejiang Province
- (2021FSYYZY45 to WQL) Research Fund Projects of The Affiliated Hospital of Zhejiang Chinese Medicine University
- (2022C31034 to CZ, 2023C31019 to HJZ) Science and Technology Project of Zhoushan
- (2022C31034 to CZ, 2023C31019 to HJZ) Science and Technology Project of Zhoushan
- (2022ZB380 to JYZ, 2023016295 to WYM, 2023007231 to CYJ ) Traditional Chinese Medicine Science and Technology Projects of Zhejiang Province
- (2022ZB380 to JYZ, 2023016295 to WYM, 2023007231 to CYJ ) Traditional Chinese Medicine Science and Technology Projects of Zhejiang Province
- (2022ZB380 to JYZ, 2023016295 to WYM, 2023007231 to CYJ ) Traditional Chinese Medicine Science and Technology Projects of Zhejiang Province
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Affiliation(s)
- Wenqing Liang
- Department of Orthopaedics, Zhoushan Hospital of Traditional Chinese Medicine, Zhejiang Chinese Medical University, 355 Xinqiao Road, Dinghai District, Zhoushan, 316000 Zhejiang Province China
| | - Chao Zhou
- Department of Orthopedics, Zhoushan Guanghua Hospital, Zhoushan, 316000 China
| | - Hongwei Zhang
- Department of Orthopaedics, Zhoushan Hospital of Traditional Chinese Medicine, Zhejiang Chinese Medical University, 355 Xinqiao Road, Dinghai District, Zhoushan, 316000 Zhejiang Province China
| | - Juqin Bai
- Department of Orthopaedics, Zhoushan Hospital of Traditional Chinese Medicine, Zhejiang Chinese Medical University, 355 Xinqiao Road, Dinghai District, Zhoushan, 316000 Zhejiang Province China
| | - Bo Jiang
- Rehabilitation Department, Zhoushan Hospital of Traditional Chinese Medicine, Zhejiang Chinese Medical University, Zhoushan, 316000 China
| | - Chanyi Jiang
- Department of Orthopedics, Zhoushan Hospital of Traditional Chinese Medicine, Zhejiang Chinese Medical University, Zhoushan, 316000 Zhejiang Province P.R. China
| | - Wenyi Ming
- Department of Orthopaedics, Zhoushan Hospital of Traditional Chinese Medicine, Zhejiang Chinese Medical University, 355 Xinqiao Road, Dinghai District, Zhoushan, 316000 Zhejiang Province China
| | - Hengjian Zhang
- Department of Orthopaedics, Zhoushan Hospital of Traditional Chinese Medicine, Zhejiang Chinese Medical University, 355 Xinqiao Road, Dinghai District, Zhoushan, 316000 Zhejiang Province China
| | - Hengguo Long
- Department of Orthopaedics, Zhoushan Hospital of Traditional Chinese Medicine, Zhejiang Chinese Medical University, 355 Xinqiao Road, Dinghai District, Zhoushan, 316000 Zhejiang Province China
| | - Xiaogang Huang
- Department of Orthopaedics, Zhoushan Hospital of Traditional Chinese Medicine, Zhejiang Chinese Medical University, 355 Xinqiao Road, Dinghai District, Zhoushan, 316000 Zhejiang Province China
| | - Jiayi Zhao
- Department of Orthopaedics, Zhoushan Hospital of Traditional Chinese Medicine, Zhejiang Chinese Medical University, 355 Xinqiao Road, Dinghai District, Zhoushan, 316000 Zhejiang Province China
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Memarian P, Pishavar E, Zanotti F, Trentini M, Camponogara F, Soliani E, Gargiulo P, Isola M, Zavan B. Active Materials for 3D Printing in Small Animals: Current Modalities and Future Directions for Orthopedic Applications. Int J Mol Sci 2022; 23:ijms23031045. [PMID: 35162968 PMCID: PMC8834768 DOI: 10.3390/ijms23031045] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 01/10/2022] [Accepted: 01/10/2022] [Indexed: 12/15/2022] Open
Abstract
The successful clinical application of bone tissue engineering requires customized implants based on the receiver's bone anatomy and defect characteristics. Three-dimensional (3D) printing in small animal orthopedics has recently emerged as a valuable approach in fabricating individualized implants for receiver-specific needs. In veterinary medicine, because of the wide range of dimensions and anatomical variances, receiver-specific diagnosis and therapy are even more critical. The ability to generate 3D anatomical models and customize orthopedic instruments, implants, and scaffolds are advantages of 3D printing in small animal orthopedics. Furthermore, this technology provides veterinary medicine with a powerful tool that improves performance, precision, and cost-effectiveness. Nonetheless, the individualized 3D-printed implants have benefited several complex orthopedic procedures in small animals, including joint replacement surgeries, critical size bone defects, tibial tuberosity advancement, patellar groove replacement, limb-sparing surgeries, and other complex orthopedic procedures. The main purpose of this review is to discuss the application of 3D printing in small animal orthopedics based on already published papers as well as the techniques and materials used to fabricate 3D-printed objects. Finally, the advantages, current limitations, and future directions of 3D printing in small animal orthopedics have been addressed.
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Affiliation(s)
- Parastoo Memarian
- Department of Animal Medicine, Productions and Health, University of Padova, 35020 Padova, Italy; (P.M.); (M.I.)
| | - Elham Pishavar
- Department of Translational Medicine, University of Ferrara, 44121 Ferrara, Italy; (E.P.); (F.Z.); (M.T.); (F.C.)
| | - Federica Zanotti
- Department of Translational Medicine, University of Ferrara, 44121 Ferrara, Italy; (E.P.); (F.Z.); (M.T.); (F.C.)
| | - Martina Trentini
- Department of Translational Medicine, University of Ferrara, 44121 Ferrara, Italy; (E.P.); (F.Z.); (M.T.); (F.C.)
| | - Francesca Camponogara
- Department of Translational Medicine, University of Ferrara, 44121 Ferrara, Italy; (E.P.); (F.Z.); (M.T.); (F.C.)
| | - Elisa Soliani
- Engineering Department, King’s College, London WC2R 2LS, UK;
| | - Paolo Gargiulo
- Institute for Biomedical and Neural Engineering, Reykjavík University, 101 Reykjavík, Iceland;
- Department of Science, Landspítali, 101 Reykjavík, Iceland
| | - Maurizio Isola
- Department of Animal Medicine, Productions and Health, University of Padova, 35020 Padova, Italy; (P.M.); (M.I.)
| | - Barbara Zavan
- Department of Translational Medicine, University of Ferrara, 44121 Ferrara, Italy; (E.P.); (F.Z.); (M.T.); (F.C.)
- Correspondence:
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Franklin SP, Stoker AM, Murphy SM, Kowaleski MP, Gillick M, Kim SE, Karlin M, Cross A, Cook JL. Outcomes Associated With Osteochondral Allograft Transplantation in Dogs. Front Vet Sci 2022; 8:759610. [PMID: 35004920 PMCID: PMC8739896 DOI: 10.3389/fvets.2021.759610] [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] [Received: 08/16/2021] [Accepted: 12/06/2021] [Indexed: 11/25/2022] Open
Abstract
The purpose of this study was to retrospectively characterize outcomes and complications associated with osteochondral allograft transplantation for treating chondral and osteochondral lesions in a group of client-owned dogs with naturally-occurring disease. Records were reviewed for information on signalment, treated joint, underlying pathology (e.g., osteochondritis dissecans; OCD), and type, size, and number of grafts used. Complications were classified as “trivial” if no treatment was provided, “non-surgical” if non-surgical treatment were needed, “minor surgical” if a minor surgical procedure such as pin removal were needed but the graft survived and function was acceptable, or “major” if the graft failed and revision surgery were needed. Outcomes were classified as unacceptable, acceptable, or full function. Thirty-five joints in 33 dogs were treated including nine stifles with lateral femoral condyle (LFC) OCD and 10 stifles with medial femoral condyle (MFC) OCD treated with osteochondral cylinders or “plugs.” There were 16 “complex” procedures of the shoulder, elbow, hip, stifle, and tarsus using custom-cut grafts. In total there were eight trivial complications, one non-surgical complication, two minor surgical complications, and five major complications for a total of 16/35 cases with complications. Accordingly, there were five cases with unacceptable outcomes, all of whom had major complications while the other 30 cases had successful outcomes. Of the 30 cases with successful outcomes, 15 had full function and 15 had acceptable function. Based on these subjective outcome assessments, it appears osteochondral allograft transplantation is a viable treatment option in dogs with focal or complex cartilage defects. However, no conclusions can be made regarding the inferiority or superiority of allograft transplantation in comparison to other treatment options based upon these data.
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Affiliation(s)
- Samuel P Franklin
- Colorado Canine Orthopedics and Rehab, Colorado Springs, CO, United States
| | - Aaron M Stoker
- Thompson Laboratory for Regenerative Orthopaedics, University of Missouri, Columbia, MO, United States
| | - Sean M Murphy
- WestVet Animal Emergency and Specialty Center, Garden City, ID, United States
| | - Michael P Kowaleski
- Department of Clinical Sciences, Cummings School of Veterinary Medicine, Tufts University, North Grafton, MA, United States
| | - Mitchell Gillick
- Toronto Veterinary Emergency and Referral Hospital, Toronto, ON, Canada
| | - Stanley E Kim
- Department of Small Animal Clinical Sciences, University of Florida, Gainesville, FL, United States
| | - Michael Karlin
- Department of Clinical Sciences, Cummings School of Veterinary Medicine, Tufts University, North Grafton, MA, United States
| | - Alan Cross
- BluePearl Pet Hospital, Atlanta, GA, United States
| | - James L Cook
- Thompson Laboratory for Regenerative Orthopaedics, University of Missouri, Columbia, MO, United States
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4
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Degórska B, Sterna J, Kalwas-Śliwińska M. Femoral Stem Fracture and Successful Reimplantation Using Femoral Window Technique in Canine Cemented Total Hip Replacement: Case Report. Front Vet Sci 2021; 8:716297. [PMID: 34692804 PMCID: PMC8526787 DOI: 10.3389/fvets.2021.716297] [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] [Received: 05/28/2021] [Accepted: 09/06/2021] [Indexed: 11/13/2022] Open
Abstract
A fractured stem is a very rare, late complication in total hip replacement procedure in dogs. Here, we present one case after cemented total hip replacement with successful reimplantation, including clinical signs and radiographic findings.
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Affiliation(s)
- Beata Degórska
- Department of Small Animal Diseases and Clinic, Institute of Veterinary Medicine, Warsaw University of Life Sciences, Warsaw, Poland
| | - Jacek Sterna
- Department of Small Animal Diseases and Clinic, Institute of Veterinary Medicine, Warsaw University of Life Sciences, Warsaw, Poland
| | - Magdalena Kalwas-Śliwińska
- Department of Small Animal Diseases and Clinic, Institute of Veterinary Medicine, Warsaw University of Life Sciences, Warsaw, Poland
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Thitiyanaporn C, Chantarapanich N, Sompaisarnsilp S, Thengchaisri N. Comparison of canine stifle kinematic analysis after two types of total knee arthroplasty: A cadaveric study. Vet World 2020; 13:956-962. [PMID: 32636593 PMCID: PMC7311880 DOI: 10.14202/vetworld.2020.956-962] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Accepted: 04/15/2020] [Indexed: 11/16/2022] Open
Abstract
Background and Aim: Osteoarthritis is a common consequence of cranial cruciate ligament rupture (CCLR) in the canine stifle. Total knee replacement is a valuable method for managing end-stage osteoarthritis. Materials and Methods: Two new designs of total knee replacement implants were fabricated with information from computed tomography scans. Canine hind limbs of cadavers were tested with a biomechanical testing machine with C-arm fluoroscopy. The four groups tested were as follows: Intact stifles (INTACT), CCLR, total knee arthroplasty (TKA) with a peg on top of the tibial component (TKAP), and TKA with no peg on top of the tibial component (TKAN). Extension, flexion, adduction, abduction, internal rotation, external rotation, cranial translation, caudal translation, and range of motion were measured. Results: The cranial translation of the tibia relative to the femur increased significantly after cutting off the cranial cruciate ligament. After arthroplasty, adduction/abduction and cranial/caudal translation within the TKAN group was increased compared with the intact stifle group. In the TKAP group, only adduction was greater than it was in the intact stifle group. Conclusion: The design of the prosthesis used for the TKAP group was more appropriate for total knee replacement in dogs than the design of the prosthesis for the TKAN group.
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Affiliation(s)
- Chaiyakorn Thitiyanaporn
- Department of Companion Animal Clinical Sciences, Faculty of Veterinary Medicine, Kasetsart University, Bangkok, 10900, Thailand
| | - Nattapon Chantarapanich
- Department of Mechanical Engineering, Faculty of Engineering at Sriracha, Kasetsart University, Chonburi, 20230, Thailand
| | - Somchai Sompaisarnsilp
- Department of Companion Animal Clinical Sciences, Faculty of Veterinary Medicine, Kasetsart University, Bangkok, 10900, Thailand.,Faculty of Veterinary Medicine, Rajamangala University of Technology Tawan-ok, Chonburi, 20110, Thailand
| | - Naris Thengchaisri
- Department of Companion Animal Clinical Sciences, Faculty of Veterinary Medicine, Kasetsart University, Bangkok, 10900, Thailand
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6
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Meeson RL, Todhunter RJ, Blunn G, Nuki G, Pitsillides AA. Spontaneous dog osteoarthritis - a One Medicine vision. Nat Rev Rheumatol 2020; 15:273-287. [PMID: 30953036 PMCID: PMC7097182 DOI: 10.1038/s41584-019-0202-1] [Citation(s) in RCA: 59] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Osteoarthritis (OA) is a global disease that, despite extensive research, has limited treatment options. Pet dogs share both an environment and lifestyle attributes with their owners, and a growing awareness is developing in the public and among researchers that One Medicine, the mutual co-study of animals and humans, could be beneficial for both humans and dogs. To that end, this Review highlights research opportunities afforded by studying dogs with spontaneous OA, with a view to sharing this active area of veterinary research with new audiences. Similarities and differences between dog and human OA are examined, and the proposition is made that suitably aligned studies of spontaneous OA in dogs and humans, in particular hip and knee OA, could highlight new avenues of discovery. Developing cross-species collaborations will provide a wealth of research material and knowledge that is relevant to human OA and that cannot currently be obtained from rodent models or experimentally induced dog models of OA. Ultimately, this Review aims to raise awareness of spontaneous dog OA and to stimulate discussion regarding its exploration under the One Medicine initiative to improve the health and well-being of both species. Osteoarthritis occurs spontaneously in pet dogs, which often share environmental and lifestyle risk-factors with their owners. This Review aims to stimulate cooperation between medical and veterinary research under the One Medicine initiative to improve the welfare of dogs and humans. Dogs have many analogous spontaneous diseases that result in end-stage osteoarthritis (OA). Inbreeding and the predisposition of certain dog breeds for OA enable easier identification of candidate genetic associations than in outbred humans. Dog OA subtypes offer a potential stratification rationale for aetiological differences and alignment to analogous human OA phenotypes. The relatively compressed time course of spontaneous dog OA offers longitudinal research opportunities. Collaboration with veterinary researchers can provide tissue samples from early-stage OA and opportunities to evaluate new therapeutics in a spontaneous disease model. Awareness of the limitations and benefits of using clinical veterinary patients in research is important.
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Affiliation(s)
- Richard L Meeson
- Skeletal Biology Group, Comparative Biomedical Sciences, Royal Veterinary College, University of London, London, UK.,Department of Clinical Services and Sciences, Royal Veterinary College, University of London, London, UK.,Institute of Orthopaedics and Musculoskeletal Science, University College London, London, UK
| | - Rory J Todhunter
- Department of Clinical Sciences, Cornell University, Ithaca, NY, USA.,Cornell Veterinary Biobank, Cornell University, Ithaca, NY, USA
| | - Gordon Blunn
- Institute of Orthopaedics and Musculoskeletal Science, University College London, London, UK.,School of Pharmacy and Biomedical Sciences, University of Portsmouth, Portsmouth, UK
| | - George Nuki
- Institute for Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, UK
| | - Andrew A Pitsillides
- Skeletal Biology Group, Comparative Biomedical Sciences, Royal Veterinary College, University of London, London, UK.
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Carvajal JL, Kim SE, Pozzi A. Use of a cerclage cable‐plate system to stabilize a periprosthetic femoral fracture after total hip replacement in a dog. Vet Surg 2019; 48:437-443. [DOI: 10.1111/vsu.13185] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Revised: 01/15/2019] [Accepted: 02/02/2019] [Indexed: 11/30/2022]
Affiliation(s)
- Jose L. Carvajal
- Department of Clinical Sciences, College of Veterinary MedicineUniversity of Florida Gainesville Florida
| | - Stanley E. Kim
- Department of Clinical Sciences, College of Veterinary MedicineUniversity of Florida Gainesville Florida
| | - Antonio Pozzi
- Clinic for Small Animal Surgery, Small Animal Department, Vetsuisse FacultyUniversity of Zurich Zurich Switzerland
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Erosion of the medial compartment of the canine elbow: occurrence, diagnosis and currently available treatment options. Vet Comp Orthop Traumatol 2017; 28:9-18. [DOI: 10.3415/vcot-13-12-0147] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2013] [Accepted: 10/23/2014] [Indexed: 11/17/2022]
Abstract
SummaryErosion of the medial compartment of the elbow joint refers to full thickness cartilage loss with exposure of the subchondral bone (modified Outerbridge grades 4–5) of the medial part of the humeral condyle (MHC) and the corresponding ulnar contact area. This finding may appear in the absence of an osteochondral fragment or a cartilage flap, or in combination with fragmentation of the medial coronoid process (MCP) or osteochondritis dissecans (OCD) of the MHC. With regard to the prognosis, it is important to diagnose these severe erosions. Imaging of cartilage lesions by means of radiography, ultrasonography, computed tomography or magnetic resonance imaging is challenging in dogs. In contrast, direct arthroscopic inspection provides detailed information about the cartilage.The treatment of these severe erosions is difficult because of the limited regenerative capacity of cartilage and presumed mechanical or physical triggering factors. Several conservative and surgical treatment methods have been proposed to treat elbows with severe cartilage defects. However, due to irreversible loss of cartilage, the prognosis in these cases remains guarded.
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Total knee replacement in a dog with a non-union type B3 tibial plateau fracture. Vet Comp Orthop Traumatol 2017; 27:159-65. [DOI: 10.3415/vcot-13-07-0085] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2013] [Accepted: 11/23/2013] [Indexed: 11/17/2022]
Abstract
SummaryA six-year-old German Shorthaired Pointer was presented with a 12 month history of left pelvic limb lameness following trauma. Clinical examination revealed marked thickening and reduced range-of-motion of the left stifle and radiographs were suggestive of a nonunion type B3 tibial plateau fracture with severe secondary osteoarthritis. Total knee replacement was performed with adjunctive stabilization of the proximal tibial fracture fragment. Clinical follow-up at six and 12 months with quantitative gait analysis revealed significant improvement in limb function.
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10
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Inter- and intra-observer variability of radiography and computed tomography for evaluation of Zurich cementless acetabular cup placement ex vivo. Vet Comp Orthop Traumatol 2017; 29:507-514. [DOI: 10.3415/vcot-16-05-0068] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2016] [Accepted: 07/26/2016] [Indexed: 11/17/2022]
Abstract
SummaryObjective: To evaluate the inter- and intra-observer variability in measurement of the angle of lateral opening (ALO) and version angle measurement using digital radiography and computed tomography (CT).Methods: Each hemipelvis was implanted with a cementless acetabular cup. Ventrodorsal and mediolateral radiographs were made of each pelvis, followed by CT imaging. After removal of the first cup, the pelves were implanted with an acetabular cup in the contra-lateral acetabulum and imaging was repeated. Three surgeons measured the ALO and version angles three times for each cup from the mediolateral radiographic projection. The same measurements were made using three-dimensional multiplanar reconstructions from CT images. Two anatomical axes were used to measure pelvic inclination in the sagittal plane, resulting in six measurements per cup. Two-way repeated measures analysis of variance evaluated inter- and intra-observer repeatability for radiographic and CT-based measurements.Results: Version angle based on radio-graphic measurement did not differ within surgeons (p = 0.433), but differed between surgeons (p <0.001). Radiographic measurement of ALO differed within surgeons (p = 0.006) but not between surgeons (p = 0.989). The ALO and version angle measured on CT images did not differ with or between surgeons.Clinical significance: Assessment of inter-and intra-observer measurement of ALO and version angle was more reproducible using CT images than conventional mediolateral radiography for a Zurich cementless acetabular cup.
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Lucas K, Nolte I, Galindo-Zamora V, Lerch M, Stukenborg-Colsman C, Behrens BA, Bouguecha A, Betancur S, Almohallami A, Wefstaedt P. Comparative measurements of bone mineral density and bone contrast values in canine femora using dual-energy X-ray absorptiometry and conventional digital radiography. BMC Vet Res 2017; 13:130. [PMID: 28490330 PMCID: PMC5426025 DOI: 10.1186/s12917-017-1047-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2015] [Accepted: 05/04/2017] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND Aseptic loosening due to bone remodelling processes after total hip replacement is one common cause for revision surgery. In human medicine, dual-energy X-ray absorptiometry (DEXA) is the gold standard for quantitative evaluation of bone mineral density, whereas in veterinary medicine conventional radiography is used for follow-up studies. Recently, a method has been described using digital X-ray images for quantitative assessment of grey scale values of bone contrast. Therefore, the aim of the present study was to evaluate the correlation of bone mineral density (BMD) measured by DEXA with grey scale values (GV) measured in digital X-ray images (RX50, RX66) ex vivo. RESULTS The measured GV in the chosen X-ray settings showed on average a good correlation (r = 0.61) to the measured BMD with DEXA. Correlation between the two X-ray settings was very good (r = 0.81). For comparisons among regions of interests (ROIs) a difference of 8.2% was found to be statistically significant, whereas in the case of RX50 and RX66 differences of 5.3% and 4.1% were found to be statistically significant. CONCLUSIONS Results indicate that measuring absolute changes in bone mineral density might be possible using digital radiography. Not all significant differences between ROIs detectable with DEXA can be displayed in the X-ray images because of the lower sensitivity of the radiographs. However, direct comparison of grey scale values of the periprosthetic femur in one individual patient during the follow-up period, in order to predict bone remodelling processes, should be possible, but with a lesser sensitivity than with DEXA. It is important that the same X-ray settings are chosen for each patient for follow-up studies.
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Affiliation(s)
- K Lucas
- Small Animal Hospital, University of Veterinary Medicine Hannover, Foundation, Bünteweg 9, D-30559, Hannover, Germany
| | - I Nolte
- Small Animal Hospital, University of Veterinary Medicine Hannover, Foundation, Bünteweg 9, D-30559, Hannover, Germany.
| | - V Galindo-Zamora
- Small Animal Clinic, Faculty of Veterinary Medicine, National University of Colombia, Bogotá, Colombia
| | - M Lerch
- Department of Orthopaedic Surgery, Hannover Medical School, Hanover, Germany
| | | | - B A Behrens
- Institute of Forming Technology and Machines, Leibniz University Hannover, Hannover, Germany
| | - A Bouguecha
- Institute of Forming Technology and Machines, Leibniz University Hannover, Hannover, Germany
| | - S Betancur
- Institute of Forming Technology and Machines, Leibniz University Hannover, Hannover, Germany
| | - A Almohallami
- Institute of Forming Technology and Machines, Leibniz University Hannover, Hannover, Germany
| | - P Wefstaedt
- Small Animal Hospital, University of Veterinary Medicine Hannover, Foundation, Bünteweg 9, D-30559, Hannover, Germany
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12
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Affiliation(s)
- Rob A. Pettitt
- Small Animal Teaching HospitalSchool of Veterinary ScienceUniversity of LiverpoolLeahurst Campus, Chester High RoadNestonWirralCH64 7TEUK
| | - Alexander J. German
- Small Animal Teaching HospitalSchool of Veterinary ScienceUniversity of LiverpoolLeahurst Campus, Chester High RoadNestonWirralCH64 7TEUK
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13
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Schachner ER, Lopez MJ. Diagnosis, prevention, and management of canine hip dysplasia: a review. VETERINARY MEDICINE (AUCKLAND, N.Z.) 2015; 6:181-192. [PMID: 30101105 PMCID: PMC6070021 DOI: 10.2147/vmrr.s53266] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Canine hip dysplasia (CHD) is a polygenic and multifactorial developmental disorder characterized by coxofemoral (hip) joint laxity, degeneration, and osteoarthritis (OA). Current diagnostic techniques are largely subjective measures of joint conformation performed at different stages of development. Recently, measures on three-dimensional images generated from computed tomography scans predicted the development of OA associated with CHD. Continued refinement of similar imaging methods may improve diagnostic imaging techniques to identify dogs predisposed to degenerative hip joint changes. By current consensus, joint changes consistent with CHD are influenced by genetic predisposition as well as environmental and biomechanical factors; however, despite decades of work, the relative contributions of each to the development and extent of CHD signs remain elusive. Similarly, despite considerable effort to decipher the genetic underpinnings of CHD for selective breeding programs, relevant genetic loci remain equivocal. As such, prevention of CHD within domestic canine populations is marginally successful. Conservative management is often employed to manage signs of CHD, with lifelong maintenance of body mass as one of the most promising methods. Surgical intervention is often employed to prevent joint changes or restore joint function, but there are no gold standards for either goal. To date, all CHD phenotypes are considered as a single entity in spite of recognized differences in expression and response to environmental conditions and treatment. Identification of distinct CHD phenotypes and targeting evidence-based conservative and invasive treatments for each may significantly advance prevention and management of a prevalent, debilitating condition in canine companions.
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Affiliation(s)
- Emma R Schachner
- Department of Veterinary Clinical Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA, USA,
| | - Mandi J Lopez
- Department of Veterinary Clinical Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA, USA,
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Heo SY, Seol JW, Lee HB. Total hip replacement in two dogs with unsuccessful femoral head ostectomy. J Vet Sci 2014; 16:131-4. [PMID: 25269715 PMCID: PMC4367144 DOI: 10.4142/jvs.2015.16.1.131] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2014] [Accepted: 09/26/2014] [Indexed: 11/20/2022] Open
Abstract
An English setter (case 1) and a Tibetan mastiff (case 2) presented with intermittent weight-bearing lameness on the right hind limb when trotting. The dogs had a history of femoral head and neck ostectomy (FHNO). Orthopedic examination revealed pain and crepitus on the right hip joint. The dogs underwent total hip replacement (THR). At the 2-year (case 1) and 1-year (case 2) follow-up, both dogs had resumed normal activity without lameness. The muscle mass and range of motion were significantly improved in the affected hind limb. In conclusion, FHNO with poor functional outcomes can be successfully ameliorated with THR.
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Affiliation(s)
- Su-Young Heo
- College of Veterinary Medicine, Chonbuk National University, Jeonju 561-756, Korea
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15
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Dan BJ, Kim SE, Pozzi A. Management of an infected cementless cup with prosthetic retention and antibiotic therapy in a dog. J Small Anim Pract 2014; 55:585-8. [DOI: 10.1111/jsap.12261] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2013] [Revised: 04/02/2014] [Accepted: 04/22/2014] [Indexed: 11/30/2022]
Affiliation(s)
- B. J. Dan
- Department of Small Animal Clinical Sciences, College of Veterinary Medicine; University of Florida; Gainesville FL USA
| | - S. E. Kim
- Department of Small Animal Clinical Sciences, College of Veterinary Medicine; University of Florida; Gainesville FL USA
| | - A. Pozzi
- Department of Small Animal Clinical Sciences, College of Veterinary Medicine; University of Florida; Gainesville FL USA
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Franklin SP, Schulz KS, Karnes J, Cook JL. Theory and development of a unicompartmental resurfacing system for treatment of medial compartment disease of the canine elbow. Vet Surg 2014; 43:765-73. [PMID: 24479943 DOI: 10.1111/j.1532-950x.2014.12154.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2013] [Accepted: 07/25/2013] [Indexed: 11/28/2022]
Abstract
Medial compartment disease (MCompD) of the canine elbow can be defined as clinical signs attributable to articular cartilage loss of the medial coronoid process (MCP) of the ulna and medial aspect of the humeral condyle without significant lateral compartment pathology. Whereas outcomes associated with treatment of defined cohorts of dogs with MCompD have not been published, the impressions of many surgeons are that non-surgical management or surgical treatment of the MCP alone does not result in long term highly functional outcomes. Thus, alternative surgical options for treatment of MCompD have been developed including various osteotomies and total elbow replacement (TER) with "successful" outcomes reported in case series. Results and data on safety have been reported for relatively few of these procedures and when reported, major complication rates have been >10% and catastrophic complications have been reported. Accordingly, we sought to develop a surgical technique with the objective of obtaining higher levels of safety and efficacy in the treatment of dogs with MCompD. This report describes the rationale for, and development of, a unicompartmental resurfacing system for treatment of MCompD in the canine elbow.
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Affiliation(s)
- Samuel P Franklin
- Comparative Orthopaedic Laboratory, University of Missouri, Columbia, Missouri
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17
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Expanding frontiers in canine total joint replacement. Vet Comp Orthop Traumatol 2013; 26:V-VII. [PMID: 24043226 DOI: 10.3415/vcot-13-08-0103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2013] [Accepted: 08/19/2013] [Indexed: 11/17/2022]
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