1
|
Wiersema T, Tellegen AR, Beukers M, van Stralen M, Wouters E, van de Vooren M, Woike N, Mihov G, Thies JC, Creemers LB, Tryfonidou MA, Meij BP. Prospective Evaluation of Local Sustained Release of Celecoxib in Dogs with Low Back Pain. Pharmaceutics 2021; 13:pharmaceutics13081178. [PMID: 34452138 PMCID: PMC8398998 DOI: 10.3390/pharmaceutics13081178] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Revised: 07/23/2021] [Accepted: 07/24/2021] [Indexed: 11/16/2022] Open
Abstract
Back pain affects millions globally and in 40% of the cases is attributed to intervertebral disc degeneration. Oral analgesics are associated with adverse systemic side-effects and insufficient pain relief. Local drug delivery mitigates systemic effects and accomplishes higher local dosing. Clinical efficacy of intradiscally injected celecoxib (CXB)-loaded polyesteramide microspheres (PEAMs) was studied in a randomized prospective double-blinded placebo controlled veterinary study. Client-owned dog patients suffering from back pain were treated with CXB-loaded (n = 20) or unloaded PEAMs ("placebo") (n = 10) and evaluated by clinical examination, gait analysis, owners' questionnaires, and MRI at 6 and 12 weeks follow-up. At 6 and 12 weeks, CXB-treated dogs experienced significantly less pain interference with their daily life activities compared to placebo. The risk ratio for treatment success was 1.90 (95% C.I. 1.24-2.91, p = 0.023) at week 6 and 1.95 (95% C.I. 1.10-3.45, p = 0.036) at week 12. The beneficial effects of CXB-PEAMs were more pronounced for the subpopulation of male dogs and those with no Modic changes in MRI at inclusion in the study; disc protrusion did not affect the outcome. It remains to be determined whether intradiscal injection of CXB-PEAMs, in addition to analgesic properties, has the ability to halt the degenerative process in the long term or restore the disc.
Collapse
Affiliation(s)
- Tijn Wiersema
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 108, 3584 CM Utrecht, The Netherlands; (T.W.); (A.R.T.); (M.B.); (M.v.d.V.)
| | - Anna R. Tellegen
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 108, 3584 CM Utrecht, The Netherlands; (T.W.); (A.R.T.); (M.B.); (M.v.d.V.)
| | - Martijn Beukers
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 108, 3584 CM Utrecht, The Netherlands; (T.W.); (A.R.T.); (M.B.); (M.v.d.V.)
| | - Marijn van Stralen
- Image Sciences Institute, University Medical Centre Utrecht, Heidelberglaan 100, 3584 CX Utrecht, The Netherlands;
| | - Erik Wouters
- Anicura Dierenziekenhuis Dordrecht, Jan Valsterweg 26, 3315 LG Dordrecht, The Netherlands;
| | - Mandy van de Vooren
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 108, 3584 CM Utrecht, The Netherlands; (T.W.); (A.R.T.); (M.B.); (M.v.d.V.)
| | - Nina Woike
- DSM Biomedical, Koestraat 1, 6167 RA Geleen, The Netherlands; (N.W.); (G.M.); (J.C.T.)
| | - George Mihov
- DSM Biomedical, Koestraat 1, 6167 RA Geleen, The Netherlands; (N.W.); (G.M.); (J.C.T.)
| | - Jens C. Thies
- DSM Biomedical, Koestraat 1, 6167 RA Geleen, The Netherlands; (N.W.); (G.M.); (J.C.T.)
| | - Laura B. Creemers
- Department of Orthopaedics, University Medical Centre Utrecht, Heidelberglaan 100, 3584 CX Utrecht, The Netherlands;
| | - Marianna A. Tryfonidou
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 108, 3584 CM Utrecht, The Netherlands; (T.W.); (A.R.T.); (M.B.); (M.v.d.V.)
- Correspondence: (M.A.T.); (B.P.M.)
| | - Björn P. Meij
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 108, 3584 CM Utrecht, The Netherlands; (T.W.); (A.R.T.); (M.B.); (M.v.d.V.)
- Correspondence: (M.A.T.); (B.P.M.)
| |
Collapse
|
2
|
Wiersema T, Koolen T, Theyse LFH, Maarschalkweerd RJ, van Zuilen CD, van Rijn SJ. Comparison of Single versus Double Lateral Plating in Treatment of Feline Ilial Fractures Using Veterinary Cuttable Plates. Vet Comp Orthop Traumatol 2021; 34:321-326. [PMID: 34082458 DOI: 10.1055/s-0041-1729624] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
OBJECTIVE The aim of this study was to compare the frequency of implant failure and the extent of pelvic canal narrowing associated with the fixation of ilial fractures in cats with a single veterinary cuttable plate (SLP) or double veterinary cuttable plates (DLP) applied to the lateral surface of the ilium. STUDY DESIGN Radiographic evaluation of feline ilial fractures plated laterally using SLP or DLP. Pelvic canal narrowing directly postoperatively and at 6 weeks follow-up was objectively measured using the sacral index (SI). Radiographs were evaluated for implant failure and fracture healing. RESULTS Seventy-seven cats satisfied the inclusion criteria. Twenty-nine fractures were treated with a SLP and 48 with DLP. Implant failure occurred significantly more (p = 0.001) in the SLP group (14/29) compared with the DLP group (6/48). Follow-up SI was significantly different between the two groups (p = 0.048, SLP median: 1.0 range: 0.83-2.4, DLP median: 0.98; range: 0.76-1.45). Median change in SI was -0.04 (range: -1.4-0.05) in the SLP group and 0.0 (range: -0.23-0.23) in the DLP group. This difference was significantly different (p = 0.031). CONCLUSION DLP leads to significantly less implant failure and significantly less pelvic canal narrowing compared with SLP. This difference in pelvic canal narrowing was small and the clinical relevance remains unclear.
Collapse
Affiliation(s)
- Tijn Wiersema
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Utrecht, The Netherlands
| | - Ties Koolen
- Department of Orthopaedics, Evidensia Dierenziekenhuis Nieuwegein, Nieuwegein, The Netherlands
| | - Lars F H Theyse
- Department for Small Animals Soft Tissue and Orthopaedic Surgery Service, College of Veterinary Medicine, University of Leipzig, Leipzig, Germany
| | | | | | - Sarah J van Rijn
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Utrecht, The Netherlands
| |
Collapse
|