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Khairoun A, Hawkins JF, Moore GE, Lescun TB, Adams SB. Electrohydraulic shockwave for treatment of forelimb superficial digital flexor tendinitis and proximal suspensory desmitis in horses. J Equine Vet Sci 2023:104504. [PMID: 37120117 DOI: 10.1016/j.jevs.2023.104504] [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: 07/11/2022] [Revised: 04/18/2023] [Accepted: 04/24/2023] [Indexed: 05/01/2023]
Abstract
Superficial digital flexor tendinitis (SDFT) and proximal suspensory desmitis (PSD) are common causes of lameness in horses. Current treatment options include rest, controlled exercise, administration of anti-inflammatories, intralesional injections, surgery, and electrohydraulic shock wave therapy (ESWT). ESWT is safe, noninvasive, and is used to treat a variety of musculoskeletal abnormalities. Medical records between 2010 and 2021 were reviewed. Horses were separated into two categories: (group 1: ≥ 3 ESWT treatments; group 2: < 3 ESWT treatments). Our objective was to examine the effect of the number of ESWT treatments in the management of SDFT and PSD injuries and to compare short- and long-term outcomes for the two groups. For group 1, lameness scores between the first and third treatments were significantly reduced in both PSD (p<0.0001) and SDFT (p=0.016) horses. However, neither the PSD (p=0.062) nor SDFT's (p=0.125) ultrasound findings were significantly different at the end of the third treatment. Horses with PSD showed a significant improvement in forelimb lameness between the first and third treatments compared to hindlimb (p = 0.033). In the multivariable ordered logistic regression model, only time (months of follow-up) was significantly associated with a positive outcome (p=0.001) and there was no difference in short and long-term outcome between groups 1 and 2. Also, chronicity of injury was negatively associated with improvement of lameness (p=0.028).
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Affiliation(s)
- Ahmed Khairoun
- Department of Veterinary Clinical Sciences, School of Veterinary Medicine, Purdue University, 625 Harrison St., West Lafayette IN 47907 USA.
| | - Jan F Hawkins
- Department of Veterinary Clinical Sciences, School of Veterinary Medicine, Purdue University, 625 Harrison St., West Lafayette IN 47907 USA
| | - George E Moore
- Veterinary Administration, College of Veterinary Medicine, Purdue University, 625 Harrison St., West Lafayette IN 47907 USA
| | - Timothy B Lescun
- Department of Veterinary Clinical Sciences, School of Veterinary Medicine, Purdue University, 625 Harrison St., West Lafayette IN 47907 USA
| | - Stephen B Adams
- Department of Veterinary Clinical Sciences, School of Veterinary Medicine, Purdue University, 625 Harrison St., West Lafayette IN 47907 USA
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Boström A, Bergh A, Hyytiäinen H, Asplund K. Systematic Review of Complementary and Alternative Veterinary Medicine in Sport and Companion Animals: Extracorporeal Shockwave Therapy. Animals (Basel) 2022; 12:ani12223124. [PMID: 36428352 PMCID: PMC9686741 DOI: 10.3390/ani12223124] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 10/29/2022] [Accepted: 11/07/2022] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Extracorporeal shockwave therapy (ECSWT) is increasingly used to treat different types of musculoskeletal conditions in sport and companion animals. To explore the scientific basis for the treatment, we conducted a systematic review of the literature on ECSWT used in horses, dogs, and cats. METHODS Relevant articles published in 1980-2020 were identified from three major databases. Each article was assessed for risk of bias. RESULTS The review identified 27 relevant articles on the effects of ECSWT in horses, nine in dogs, but none in cats. Typically, ECSWT involved one to three treatment sessions at 1- to 3-week intervals. We identified studies on bone mass and bone healing, wound healing, navicular disease, ligament injury, desmitis, sesamoiditis, tendon injury, osteoarthritis, and short-term analgesic effects. Common to all indications was that the scientific evidence was very limited. For each separate indication, there were relatively few studies, many of which had methodological flaws. Where favorable results were reported, they were usually not replicated in independent studies. A few encouraging results were found. CONCLUSIONS In sport and companion animals, the scientific evidence for clinical effects of ECSWT in horses, dogs, and cats is limited. For some applications, notably short-term pain relief, ligament ailments, and osteoarthritis, the results seem promising and warrant further exploration in high-quality studies.
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Affiliation(s)
- Anna Boström
- Department of Equine and Small Animal Medicine, Faculty of Veterinary Medicine, University of Helsinki, P.O. Box 57, 00014 Helsinki, Finland
| | - Anna Bergh
- Department of Clinical Sciences, Swedish University of Agricultural Sciences, SE 750 07 Uppsala, Sweden
- Correspondence:
| | - Heli Hyytiäinen
- Department of Equine and Small Animal Medicine, Faculty of Veterinary Medicine, University of Helsinki, P.O. Box 57, 00014 Helsinki, Finland
| | - Kjell Asplund
- Department of Public Health and Clinical Medicine, Umeå University, SE 901 87 Umeå, Sweden
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3
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Johnson SA, Richards RB, Frisbie DD, Esselman AM, McClure SR. Equine shock wave therapy ‐ where are we now? Equine Vet J 2022. [DOI: 10.1111/evj.13890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2022] [Accepted: 10/02/2022] [Indexed: 11/30/2022]
Affiliation(s)
- Sherry A. Johnson
- Department of Clinical Sciences Orthopaedic Research Center at the Translational Medicine Institute, College of Veterinary Medicine and Biomedical Sciences, Colorado State University Fort Collins Colorado USA
| | | | - David D. Frisbie
- Department of Clinical Sciences Orthopaedic Research Center at the Translational Medicine Institute, College of Veterinary Medicine and Biomedical Sciences, Colorado State University Fort Collins Colorado USA
| | - Angie M. Esselman
- Department of Clinical Sciences Orthopaedic Research Center at the Translational Medicine Institute, College of Veterinary Medicine and Biomedical Sciences, Colorado State University Fort Collins Colorado USA
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Osborne C. Does extracorporeal shockwave therapy or radial pressure wave therapy improve return to function over conservative and/or surgical management in horses with proximal suspensory desmitis? EQUINE VET EDUC 2021. [DOI: 10.1111/eve.13352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- C. Osborne
- Langford Equine Vets Langford House University of Bristol Bristol UK
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Abstract
Plantar fasciitis has been considered an acute inflammatory disorder. However, the local histologic findings represent a more chronic, degenerative state without inflammation. Patients may be stuck in a chronic state of cyclical inflammation leading to tissue degeneration, refractory symptoms, and disability. This idea process has influenced the treatment approach of some practitioners who have implemented the idea of regenerative medicine and use of biologic adjuvants in the treatment of plantar heel pain. Biologic therapies provide many different cellular components, growth factors, and proteins to restore normal tissue biology and are a useful adjunct in the treatment of recalcitrant plantar fasciitis.
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Affiliation(s)
- Alan Ng
- Advanced Orthopedic and Sports Medicine Specialists, Denver, CO, USA; Highlands-Presbyterian, St. Luke's Podiatric Medicine and Surgery Residency Program, 1719 East 19th Avenue, Denver, CO 80218, USA.
| | - Robert Cavaliere
- Highlands-Presbyterian, St. Luke's Podiatric Medicine and Surgery Residency Program, 1719 East 19th Avenue, Denver, CO 80218, USA
| | - Lauren Molchan
- Highlands-Presbyterian, St. Luke's Podiatric Medicine and Surgery Residency Program, 1719 East 19th Avenue, Denver, CO 80218, USA
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Giunta K, Donnell JR, Donnell AD, Frisbie DD. Prospective randomized comparison of platelet rich plasma to extracorporeal shockwave therapy for treatment of proximal suspensory pain in western performance horses. Res Vet Sci 2019; 126:38-44. [PMID: 31430578 DOI: 10.1016/j.rvsc.2019.07.020] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2019] [Revised: 07/17/2019] [Accepted: 07/31/2019] [Indexed: 01/11/2023]
Abstract
Proximal suspensory desmitis (PSD) is a frequent cause of lameness in the performance horse. Extracorporeal shockwave therapy (EST) and platelet rich plasma (PRP) have become common treatments for PSD yet clinical data on efficacy is limited. The main objective of this randomized, prospective clinical study was to compare long-term effectiveness of EST and PRP in Western performance horses. One hundred horses with lameness localized to the proximal suspensory ligament received treatment with either PRP or EST following baseline ultrasonographic evaluation. A veterinarian and agent evaluated the horses for lameness independently four days following the first treatment and long-term follow up was obtained from the agent at six and twelve months. Four days post treatment, horses treated with EST had significantly greater lameness improvement compared to PRP. At one-year horses with less severe baseline ultrasound changes (grades 0-1) appeared to respond better (degree of lameness) with EST treatment whereas horses with more severe ultrasound changes (grade 2) responded better to PRP. Horses with baseline lameness graded 1 or 2 were 5.1 times more likely to be back in work at 1 year compared to those presenting with grade 3 or 4. EST treatment was associated with going back to work 3.8 times more at one year compared to PRP independent of baseline ultrasound score. Both PRP and EST can be expected to yield favorable therapeutic responses in Western performance horses with lameness localized to the proximal suspensory region. Baseline ultrasound may guide treatment selection.
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Affiliation(s)
- Kelly Giunta
- Blue Ridge Equine Clinic, 4510 Mockernut Lane, Earlysville, VA 22936, USA.
| | - Josh R Donnell
- La Mesa Equine Lameness Center, 8386 FM 455E, Pilot Point, TX 76258, USA.
| | - Alan D Donnell
- La Mesa Equine Lameness Center, 8386 FM 455E, Pilot Point, TX 76258, USA.
| | - David D Frisbie
- Colorado State University, Equine Orthopaedic Research Center, 300 W Drake Road, Fort Collins, CO 80523, USA.
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Yocom AF, Bass LD. Review of the application and efficacy of extracorporeal shockwave therapy in equine tendon and ligament injuries. EQUINE VET EDUC 2019. [DOI: 10.1111/eve.12780] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- A. F. Yocom
- Department of Clinical Sciences College of Veterinary Medicine and Biomedical Sciences Colorado State University Fort Collins Colorado USA
| | - L. D. Bass
- Department of Clinical Sciences College of Veterinary Medicine and Biomedical Sciences Colorado State University Fort Collins Colorado USA
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Gutierrez-Nibeyro SD, McCoy AM, Selberg KT. Recent advances in conservative and surgical treatment options of common equine foot problems. Vet J 2018; 237:9-15. [PMID: 30089549 DOI: 10.1016/j.tvjl.2018.05.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2017] [Revised: 05/09/2018] [Accepted: 05/15/2018] [Indexed: 12/25/2022]
Abstract
Foot problems are very common causes of lameness in horses. With the recent diagnostic advances to evaluate and treat foot pathology as well as to monitor response to therapy, it is now possible to more accurately evaluate the effectiveness of many of these treatments. This review details some of the recent advances of the most common conservative and surgical treatment options for foot problems in horses, including an overview of evidence on the efficacy to support the use of these treatment options and on factors that may affect prognosis.
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Affiliation(s)
- S D Gutierrez-Nibeyro
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, University of Illinois, Urbana, IL, USA.
| | - A M McCoy
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, University of Illinois, Urbana, IL, USA
| | - K T Selberg
- Department of Environmental and Radiological Health Sciences, Colorado State University, Fort Collins, CO, USA
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Seabaugh KA, Thoresen M, Giguère S. Extracorporeal Shockwave Therapy Increases Growth Factor Release from Equine Platelet-Rich Plasma In Vitro. Front Vet Sci 2017; 4:205. [PMID: 29270410 PMCID: PMC5726030 DOI: 10.3389/fvets.2017.00205] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Accepted: 11/20/2017] [Indexed: 01/03/2023] Open
Abstract
Introduction Extracorporeal shockwave therapy (ESWT) and platelet-rich plasma (PRP) are common treatments for soft tissue injuries in horses. Shockwave triggers cell specific responses to promote healing. Growth factors released from PRP also promote healing. It has been hypothesized that greater growth factor release would amplify the healing process. The combination of ESWT and PRP could promote healing in injured tendons and ligaments in the horse. The objective of this study was to determine if application of shockwaves to PRP samples increases the concentration of transforming growth factor-β1 (TGF-β1) and platelet-derived growth factor ββ (PDGF-ββ) released from the platelets in vitro. Materials and methods PRP was produced from blood drawn from six horses. The PRP from each horse was exposed to the following treatments: (1) positive control (freeze-thaw cycle), (2) untreated negative control, or shockwaves with either (3) a "standard probe" (ESWT-S) with a 2 cm focal width and medium energy density or (4) a "power probe" (ESWT-P) with a 1 cm focal width and high energy density. After each treatment, the samples were centrifuged, and the supernatant was harvested. The supernatant was then used for growth factor quantification via commercially available ELISA kits for TGF-β1 and PDGF-ββ. Results Concentrations of TGF-β1 and PDGF-ββ in PRP that underwent a freeze-thaw cycle were significantly increased compared with all other treatments. Both ESWT-S and ESWT-P resulted in significantly increased TGF-β1 concentrations, 46 and 33%, respectively, when compared with the negative control. Both ESWT-S and ESWT-P resulted in significantly increased PDGF-ββ concentrations, 219 and 190%, respectively, when compared with the negative control. Discussion These data indicate that the application of ESWT to PRP increases the expression of growth factors in vitro. This suggests that the combination therapy of local PRP injection followed by ESWT may stimulate release of growth factors from platelets after they have been injected into the area of injury. Conclusion The combination of PRP and ESWT might result in synergism of two modalities previously utilized individually for tendon and ligament injuries in horses.
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Affiliation(s)
- Kathryn A Seabaugh
- Department of Clinical Sciences, Colorado State University, Fort Collins, CO, United States.,Department of Large Animal Medicine, University of Georgia, Athens, GA, United States
| | - Merrilee Thoresen
- Department of Large Animal Medicine, University of Georgia, Athens, GA, United States.,Department of Pathobiology & Population Medicine, College of Veterinary Medicine, Mississippi State University, Starkville, MS, United States
| | - Steeve Giguère
- Department of Large Animal Medicine, University of Georgia, Athens, GA, United States
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Schlachter C, Lewis C. Electrophysical Therapies for the Equine Athlete. Vet Clin North Am Equine Pract 2016; 32:127-47. [PMID: 27012509 DOI: 10.1016/j.cveq.2015.12.011] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
A good rehabilitation program takes into account the possible causes for the injury. Once the underlying cause of the injury is determined, a veterinarian can construct an appropriate rehabilitation plan and use the available electrophysical therapies to their greatest effect. Treating the horse correctly for the type and location of injury, and the stage of rehabilitation of the tissue, helps ensure full rehabilitation success. This article discusses when and how to use the most common electrophysical therapies in horses including transcutaneous electrical nerve stimulation, neuromuscular electrical stimulation, functional electric stimulation, pulsed electromagnetic field therapy, therapeutic ultrasound, laser therapy, shockwave therapy, and vibration therapy.
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Taylor J, Dunkerley S, Silver D, Redfern A, Talbot N, Sharpe I, Guyver P. Extracorporeal shockwave therapy (ESWT) for refractory Achilles tendinopathy: A prospective audit with 2-year follow up. Foot (Edinb) 2016; 26:23-9. [PMID: 26802946 DOI: 10.1016/j.foot.2015.08.007] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/09/2015] [Revised: 07/10/2015] [Accepted: 08/24/2015] [Indexed: 02/04/2023]
Abstract
BACKGROUND Achilles tendinopathy (AT) represents a triad of tendon pain, swelling and impaired performance. Extracorporeal shockwave therapy (ESWT) has been endorsed by the National Institute for Health and Care Excellence (NICE) for refractory AT. This audit investigates the long-term outcomes of patients treated with ESWT for refractory AT. METHODS Forty-six patients treated with ESWT for AT between October 2010 and August 2011 completed visual analogue, satisfaction scores and functional assessment questionnaires over two years. Patients were subdivided into two groups depending on whether their AT was insertional (IAT) or non-insertional (NAT). RESULTS Forty-six patients (mean age 58 years) completed all treatments and full 2 year follow up. There was significant improvement in pain at rest, on activity and of function within both NAT and IAT groups over the two-year period. Satisfaction scores were significant in the NAT group but not in the IAT group. CONCLUSIONS ESWT appears to be of benefit in the long term improvement of pain at rest, on activity and functional outcome in patients with refractory AT. However, subjective patient opinion may not match the perceived clinical outcome observed in this audit in all patients and individuals should be counselled regarding this prior to treatment.
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Affiliation(s)
- James Taylor
- Department of Radiology, Royal Devon and Exeter Hospital, Exeter, UK.
| | - Sarah Dunkerley
- Department of Orthopaedic Surgery, Royal Devon and Exeter Hospital, Exeter, UK.
| | - David Silver
- Department of Radiology, Royal Devon and Exeter Hospital, Exeter, UK.
| | - Andrew Redfern
- Department of Radiology, Royal Devon and Exeter Hospital, Exeter, UK.
| | - Nick Talbot
- Department of Orthopaedic Surgery, Royal Devon and Exeter Hospital, Exeter, UK.
| | - Ian Sharpe
- Department of Orthopaedic Surgery, Royal Devon and Exeter Hospital, Exeter, UK.
| | - Paul Guyver
- Department of Orthopaedic Surgery, Royal Devon and Exeter Hospital, Exeter, UK.
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Kaneps AJ. Practical Rehabilitation and Physical Therapy for the General Equine Practitioner. Vet Clin North Am Equine Pract 2016; 32:167-80. [PMID: 26898959 DOI: 10.1016/j.cveq.2015.12.001] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
Physical treatment and rehabilitation play major roles in recovery and maintenance of the equine athlete, and many therapeutic measures are accessible by the veterinarian in general practice. An accurate diagnosis of the condition undergoing treatment is a requirement, and measurable parameters obtained at diagnosis allows for quantification of treatment outcomes. Therapeutic modalities accessible to the general practicing veterinarian are reviewed. Mechanisms of action, indications, and treatment protocols of thermal therapy, therapeutic ultrasound, extracorporeal shock wave, and laser are discussed. Manipulative therapies, including stretching and use of core strengthening exercises and equipment, are outlined.
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Affiliation(s)
- Andris J Kaneps
- Kaneps Equine Sports Medicine and Surgery, LLC, 68 Grover Street, Beverly, MA 01915, USA.
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Link KA, Koenig JB, Silveira A, Plattner BL, Lillie BN. Effect of unfocused extracorporeal shock wave therapy on growth factor gene expression in wounds and intact skin of horses. Am J Vet Res 2013; 74:324-32. [DOI: 10.2460/ajvr.74.2.324] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Sherlock CE, Eggleston RB, Peroni JF, Parks AH. Desmitis of the medial tarsal collateral ligament in 7 horses. EQUINE VET EDUC 2011. [DOI: 10.1111/j.2042-3292.2011.00272.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Waguespack RW, Burba DJ, Hubert JD, Vidal MA, Lomax LG, Chirgwin SR, Lopez MJ. Effects of Extracorporeal Shock Wave Therapy on Desmitis of the Accessory Ligament of the Deep Digital Flexor Tendon in the Horse. Vet Surg 2011; 40:450-6. [DOI: 10.1111/j.1532-950x.2011.00800.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Shockwave therapy: Is there an application to enhance wound healing in horses? EQUINE VET EDUC 2010. [DOI: 10.2746/095777309x478590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Silveira A, Koenig JB, Arroyo LG, Trout D, Moens NMM, LaMarre J, Brooks A. Effects of unfocused extracorporeal shock wave therapy on healing of wounds of the distal portion of the forelimb in horses. Am J Vet Res 2010; 71:229-34. [DOI: 10.2460/ajvr.71.2.229] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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The effect of focused extracorporeal shock wave therapy on collagen matrix and gene expression in normal tendons and ligaments. Equine Vet J 2010; 41:335-41. [DOI: 10.2746/042516409x370766] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Bosch G, Lin YL, van Schie HTM, van De Lest CHA, Barneveld A, van Weeren PR. Effect of extracorporeal shock wave therapy on the biochemical composition and metabolic activity of tenocytes in normal tendinous structures in ponies. Equine Vet J 2010; 39:226-31. [PMID: 17520973 DOI: 10.2746/042516407x180408] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
REASONS FOR PERFORMING STUDY Extracorporeal shockwave therapy (ESWT) has recently been introduced as a new therapy for tendon injuries in horses, but little is known about the basic mechanism of action of this therapy. OBJECTIVES To study the effect of ESWT on biochemical parameters and tenocyte metabolism of normal tendinous structures in ponies. METHODS Six Shetland ponies, free of lameness and with ultrasonographically normal flexor and extensor tendons and suspensory ligaments (SL), were used. ESWT was applied at the origin of the suspensory ligament and the mid-metacarpal region of the superficial digital flexor tendon (SDFT) 6 weeks prior to sample taking, and at the mid-metacarpal region (ET) and the insertion on the extensor process of the distal phalanx (EP) of the common digital extensor tendon 3 h prior to tendon sampling. In all animals one front leg was treated and the other front leg was used as control. After euthanasia, tendon explants were harvested aseptically for in vitro cell culture experiments and additional samples were taken for biochemical analyses. RESULTS In the explants harvested 3 h after treatment, glycosaminoglycan (GAG) and protein syntheses were increased (P<0.05). The synthesis of all measured parameters was decreased 6 weeks after ESWT treatment. Biochemically, the level of degraded collagen was increased 3 h after treatment (P<0.05). Six weeks after treatment, there was a decrease of degraded collagen and GAG contents. DNA content had not changed in either tendon samples or explants after culturing. CONCLUSIONS ESWT causes a transient stimulation of metabolism in tendinous structures of ponies shortly after treatment. After 6 weeks metabolism has decreased significantly and GAG levels are lower than in untreated control limbs. POTENTIAL RELEVANCE The stimulating short-term effect of ESWT might accelerate the initiation of the healing process in injured tendons. The long-term effect seems less beneficial. Further research should aim at determining the duration of this effect and at assessing its relevance for end-stage tendon quality.
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Affiliation(s)
- G Bosch
- Department of Equine Sciences, Faculty of Veterinary Medicine, Utrecht
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Osseous abnormalities associated with collateral desmopathy of the distal interphalangeal joint. Part 2: Treatment and outcome. Equine Vet J 2010; 41:794-9. [DOI: 10.2746/042516409x452170] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Scott M. Musculoskeletal Injuries in Nonracing Quarter Horses. Vet Clin North Am Equine Pract 2008; 24:133-52. [DOI: 10.1016/j.cveq.2007.11.006] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
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Wang L, Qin L, Lu HB, Cheung WH, Yang H, Wong WN, Chan KM, Leung KS. Extracorporeal shock wave therapy in treatment of delayed bone-tendon healing. Am J Sports Med 2008; 36:340-7. [PMID: 17885225 DOI: 10.1177/0363546507307402] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Extracorporeal shock wave therapy is indicated for treatment of chronic injuries of soft tissues and delayed fracture healing and nonunion. No investigation has been conducted to study the effect of shock wave on delayed healing at the bone-tendon junction. HYPOTHESIS Shock wave promotes osteogenesis, regeneration of fibrocartilage zone, and remodeling of healing tissue in delayed healing of bone-tendon junction surgical repair. STUDY DESIGN Controlled laboratory study. METHODS Twenty-eight mature rabbits were used for establishing a delayed healing model at the patella-patellar tendon complex after partial patellectomy and then divided into control and shock wave groups. In the shock wave group, a single shock wave treatment was given at week 6 postoperatively to the patella-patellar tendon healing complex. Seven samples were harvested at week 8 and 7 samples at week 12 for radiologic, densitometric, histologic, and mechanical evaluations. RESULTS Radiographic measurements showed 293.4% and 185.8% more new bone formation at the patella-patellar tendon healing junction in the shock wave group at weeks 8 and 12, respectively. Significantly better bone mineral status was found in the week 12 shock wave group. Histologically, the shock wave group showed more advanced remodeling in terms of better alignment of collagen fibers and thicker and more mature regenerated fibrocartilage zone at both weeks 8 and 12. Mechanical testing showed 167.7% and 145.1% higher tensile load and strength in the shock wave group at week 8 and week 12, respectively, compared with controls. CONCLUSION Extracorporeal shock wave promotes osteogenesis, regeneration of fibrocartilage zone, and remodeling in the delayed bone-to-tendon healing junction in rabbits. CLINICAL RELEVANCE These results provide a foundation for future clinical studies toward establishment of clinical indication for treatment of delayed bone-to-tendon junction healing.
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Affiliation(s)
- Lin Wang
- Musculoskeletal Research Laboratory, Department of Orthopaedics andTraumatology, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong SAR, China
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Bischofberger AS, Ringer SK, Geyer H, Imboden I, Ueltschi G, Lischer CJ. Histomorphologic evaluation of extracorporeal shock wave therapy of the fourth metatarsal bone and the origin of the suspensory ligament in horses without lameness. Am J Vet Res 2006; 67:577-82. [PMID: 16579748 DOI: 10.2460/ajvr.67.4.577] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
OBJECTIVE To determine via histologic examination and scintigraphy the effect of focused extracorporeal shock wave therapy (ESWT) on normal bone and the bone-ligament interface in horses. ANIMALS 6 horses without lameness. PROCEDURE Origins of the suspensory ligament at the metacarpus (35-mm probe depth) and fourth metatarsal bone (5-mm probe depth) were treated twice (days 0 and 16) with 2,000 shocks (energy flux density, 0.15 mJ/mm2). One forelimb and 1 hind limb were randomly treated, and the contralateral limbs served as nontreated controls. Bone scans were performed on days -1 (before ESWT), 3, 16, and 19. Histomorphologic studies of control and treated tissues were performed on day 30. RESULTS ESWT significantly increased the number of osteoblasts but caused no damage to associated soft tissue structures and did not induce cortical microfractures. A significant correlation between osteoblast numbers and radiopharmaceutical uptake was noticed on lateral views of the hind limb on days 3 and 16 and on caudal views of the forelimb on day 3. CONCLUSIONS AND CLINICAL RELEVANCE Results suggested that ESWT has the potential to increase osteoblast numbers in horses. The correlation between increased osteoblast numbers and radio-pharmaceutical uptake 3 days and 16 days after the first ESWT suggested that stimulation of osteogenesis occurred soon after ESWT. No damage to bone or the bone-ligament interface should occur at the settings used in this study, and ESWT can therefore be administered safely in horses.
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