{"id":16611,"date":"2026-08-02T12:30:02","date_gmt":"2026-08-02T04:30:02","guid":{"rendered":"https:\/\/fotonmedix.com\/"},"modified":"2026-08-02T12:30:02","modified_gmt":"2026-08-02T04:30:02","slug":"dual-wavelength-systems-treat-severe-equine-stifle-lameness","status":"publish","type":"post","link":"https:\/\/fotonmedix.com\/fr\/dual-wavelength-systems-treat-severe-equine-stifle-lameness.html","title":{"rendered":"Des syst\u00e8mes \u00e0 double longueur d'onde permettent de traiter les cas graves de boiterie du grasset chez le cheval"},"content":{"rendered":"<h3 class=\"wp-block-heading\">Photobiomodulation \u00e0 haute puissance pour la r\u00e9\u00e9ducation profonde intra-articulaire du genou chez le cheval<\/h3>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><strong>R\u00e9sum\u00e9 :<\/strong> La co-\u00e9mission avanc\u00e9e de longueurs d'onde de 1 470 nm et 980 nm, avec un rapport cyclique de 40%, permet de contourner la capsule articulaire \u00e9paisse. Cette configuration permet d'atteindre une densit\u00e9 d'\u00e9nergie intra-articulaire de 15 $J\/cm^2$ sans induire de contrainte thermique superficielle.<\/p>\n<\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading\">Le d\u00e9fi de la p\u00e9n\u00e9tration intra-articulaire en orthop\u00e9die des grands animaux<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Les v\u00e9t\u00e9rinaires sp\u00e9cialis\u00e9s en m\u00e9decine sportive qui traitent des animaux de grande taille pratiquant un sport se heurtent fr\u00e9quemment \u00e0 un obstacle anatomique : l\u2019\u00e9norme barri\u00e8re structurelle que constitue la capsule articulaire du genou chez le cheval. Lors de la prise en charge de pathologies profondes telles que les d\u00e9chirures du m\u00e9nisque m\u00e9dial, les l\u00e9sions kystiques sous-chondrales ou l\u2019arthrose f\u00e9moro-patellaire, l\u2019administration d\u2019une densit\u00e9 th\u00e9rapeutique de photons \u00e0 l\u2019aide d\u2019un appareil standard <strong>machine de th\u00e9rapie laser<\/strong> est particuli\u00e8rement difficile. La capsule articulaire \u00e9paisse et fibreuse, les ligaments collat\u00e9raux denses et la couche de graisse sous-cutan\u00e9e qui les recouvre absorbent et diffusent la majeure partie de l'\u00e9nergie lumineuse avant qu'elle ne puisse atteindre la synoviale interne.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Si un professionnel tente de surmonter cet obstacle en augmentant simplement la puissance de sortie d'un g\u00e9n\u00e9rateur d'ondes continues classique <strong>laser pour la th\u00e9rapie<\/strong>, les propri\u00e9t\u00e9s physiques des tissus denses jouent en leur d\u00e9faveur. Les photons s'accumulent rapidement dans la m\u00e9lanine du pelage fonc\u00e9 et dans les mol\u00e9cules d'eau du derme, provoquant une hausse dangereuse de la temp\u00e9rature en surface.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pour administrer en toute s\u00e9curit\u00e9 une dose r\u00e9g\u00e9n\u00e9rative \u00e0 une structure situ\u00e9e \u00e0 une profondeur de 7 \u00e0 9 centim\u00e8tres, les cliniciens doivent s'\u00e9carter des protocoles continus standard. Ils doivent plut\u00f4t utiliser des syst\u00e8mes qui synchronisent des coefficients d'absorption sp\u00e9cifiques de l'eau et de l'h\u00e9moglobine avec un rapport cyclique modul\u00e9 avec pr\u00e9cision.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>                     CROSS-SECTION OF EQUINE STIFLE BARRIER\n                     \n       Laser Handpiece\n             ||\n      &#091; Thick Coat \/ Skin ]   ---&gt; Melanin Absorption Risk\n      &#091; Subcutaneous Fat  ]   ---&gt; Optical Scattering Zone\n      &#091; Dense Joint Capsule ] ---&gt; Barrier: Superficial Heat Build-up\n             ||\n             || (1470nm Creates Vascular Gateway + 980nm Penetrates Deep)\n             \\\/\n     &#091; Intra-Articular Space ] -&gt; Target: Regenerative ATP Synthesis (No Burn)\n<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">Physique optique : synchronisation des spectres d'absorption pour une p\u00e9n\u00e9tration profonde des joints<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Pour pallier le coefficient de diffusion \u00e9lev\u00e9 des articulations des grands animaux, il faut recourir \u00e0 un syst\u00e8me d'administration \u00e0 longueurs d'onde multiples, tel que la technologie int\u00e9gr\u00e9e dans le <em>HorseVet 3000 U5<\/em> et <em>VetMedix<\/em> plateformes m\u00e9dicales. En combinant les longueurs d'onde de 1 470 nm et 980 nm, le syst\u00e8me modifie les propri\u00e9t\u00e9s optiques des tissus en temps r\u00e9el.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"400\" height=\"372\" src=\"https:\/\/fotonmedix.com\/wp-content\/uploads\/2026\/07\/laser-therapy-for-horses13.jpg\" alt=\"\" class=\"wp-image-16612\" srcset=\"https:\/\/fotonmedix.com\/wp-content\/uploads\/2026\/07\/laser-therapy-for-horses13.jpg 400w, https:\/\/fotonmedix.com\/wp-content\/uploads\/2026\/07\/laser-therapy-for-horses13-300x279.jpg 300w, https:\/\/fotonmedix.com\/wp-content\/uploads\/2026\/07\/laser-therapy-for-horses13-13x12.jpg 13w\" sizes=\"auto, (max-width: 400px) 100vw, 400px\" \/><\/figure>\n<\/div>\n\n\n<h3 class=\"wp-block-heading\">La r\u00e9ponse microvasculaire \u00e0 la longueur d'onde de 1 470 nm<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">La longueur d\u2019onde de 1 470 nm cible les bandes d\u2019absorption de l\u2019eau extracellulaire. Lorsque ces photons interagissent avec le tissu conjonctif dense entourant l\u2019articulation du genou, ils provoquent une augmentation rapide, localis\u00e9e et non destructive de la temp\u00e9rature au sein de la matrice aqueuse. Cette action thermique cibl\u00e9e stimule une vasodilatation locale imm\u00e9diate et acc\u00e9l\u00e8re le drainage lymphatique. \u00c0 mesure que l\u2019\u0153d\u00e8me localis\u00e9 et la congestion liquidienne s\u2019att\u00e9nuent, la densit\u00e9 physique du tissu diminue. Cette r\u00e9duction de la densit\u00e9 abaisse le coefficient de diffusion global de la capsule articulaire, cr\u00e9ant ainsi un trajet optique d\u00e9gag\u00e9 qui permet aux photons suivants de p\u00e9n\u00e9trer plus profond\u00e9ment dans l\u2019espace intra-articulaire.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Stimulation cellulaire par une longueur d'onde de 980 nm<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Gr\u00e2ce \u00e0 la voie tissulaire optimis\u00e9e par la longueur d'onde de 1 470 nm, les photons de 980 nm peuvent p\u00e9n\u00e9trer en profondeur dans l'espace articulaire pour cibler l'h\u00e9moglobine oxyg\u00e9n\u00e9e. Au niveau cellulaire, la lumi\u00e8re de 980 nm agit directement sur la cytochrome c oxydase, l'enzyme terminale de la cha\u00eene respiratoire mitochondriale.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Cette interaction d\u00e9clenche une augmentation imm\u00e9diate de la synth\u00e8se de l'ad\u00e9nosine triphosphate (ATP), stimule la production d'oxyde nitrique (NO) et optimise la signalisation des esp\u00e8ces r\u00e9actives de l'oxyg\u00e8ne (ERO). Au sein d'une articulation arthritique, cette cascade biochimique r\u00e9duit l'apoptose des chondrocytes, att\u00e9nue l'inflammation synoviale chronique et stimule la synth\u00e8se de la matrice extracellulaire chondrog\u00e9nique.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Gestion de la cin\u00e9tique thermique gr\u00e2ce \u00e0 l'impulsion par g\u00e2chette<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">La diffusion de ces longueurs d'onde \u00e0 des puissances de cr\u00eate \u00e9lev\u00e9es (jusqu'\u00e0 30 W) n\u00e9cessite une gestion thermique rigoureuse afin d'\u00e9viter toute l\u00e9sion \u00e9pidermique. Ce param\u00e8tre est contr\u00f4l\u00e9 par le <strong>rapport cyclique<\/strong>. By utilizing a gated pulse frequency (e.g., 1500 Hz at a 40% duty cycle), the laser delivers high-energy bursts followed by a structured &#8220;off&#8221; period.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The tissue&#8217;s thermal dissipation is governed by its specific heat capacity and blood perfusion rate. During the &#8220;off&#8221; window, the superficial capillary bed carries away excess heat generated at the surface, while the deep, non-vascularized cartilage continues to accumulate the therapeutic photon dose delivered by the <strong>appareil de th\u00e9rapie par laser froid approuv\u00e9 par la fda<\/strong>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Registre des cas cliniques : posologie pour les articulations profondes et le cartilage articulaire<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">L'ensemble de donn\u00e9es ci-dessous pr\u00e9sente en d\u00e9tail les protocoles \u00e0 haute puissance et \u00e0 longueurs d'onde multiples utilis\u00e9s pour le traitement des pathologies intra-articulaires profondes chez les chevaux et les grands chiens.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><td><strong>Profil du patient<\/strong><\/td><td><strong>Pathologie et grade<\/strong><\/td><td><strong>M\u00e9lange de longueurs d'onde primaires<\/strong><\/td><td><strong>Puissance de sortie (W)<\/strong><\/td><td><strong>Modulation et rapport cyclique<\/strong><\/td><td><strong>Densit\u00e9 \u00e9nerg\u00e9tique cible (J\/cm\u00b2)<\/strong><\/td><td><strong>Nombre total de joules par s\u00e9ance<\/strong><\/td><td><strong>R\u00e9sultats cliniques (apr\u00e8s 10 s\u00e9ances)<\/strong><\/td><\/tr><\/thead><tbody><tr><td>Cheval (pur-sang), 5 ans<\/td><td>Arthrose de l'articulation f\u00e9moro-patellaire (degr\u00e9 III)<\/td><td>60% 980 nm + 40% 1 470 nm<\/td><td>30 W en cr\u00eate<\/td><td>Puls\u00e9, 1 500 Hz, rapport cyclique 40%<\/td><td>15 $J\/cm^2$<\/td><td>10,800 J<\/td><td>La boiterie est pass\u00e9e du grade 3\/5 \u00e0 0\/5 ; le test de flexion est revenu \u00e0 la normale ; r\u00e9duction marqu\u00e9e de l'\u00e9panchement articulaire.<\/td><\/tr><tr><td>Chien (Rottweiler), 7 ans<\/td><td>Rupture partielle du ligament crois\u00e9 cr\u00e2nien (degr\u00e9 II)<\/td><td>70% 980 nm + 30% 1 470 nm<\/td><td>15W cr\u00eate<\/td><td>Puls\u00e9, 1 000 Hz, rapport cyclique 50%<\/td><td>12 $J\/cm^2$<\/td><td>5,400 J<\/td><td>Am\u00e9lioration de la stabilit\u00e9 du genou ; intervention chirurgicale \u00e9vit\u00e9e ; le patient a retrouv\u00e9 une marche avec mise en charge compl\u00e8te.<\/td><\/tr><tr><td>Cheval (sang chaud), 8 ans<\/td><td>L\u00e9sion du m\u00e9nisque m\u00e9dial (l\u00e9sion de grade II du genou)<\/td><td>50% 980 nm + 50% 1 470 nm<\/td><td>25 W en cr\u00eate<\/td><td>Superpuls\u00e9, 2 500 Hz, rapport cyclique 35%<\/td><td>16 $J\/cm\u00b2$<\/td><td>9,000 J<\/td><td>L'IRM de contr\u00f4le a r\u00e9v\u00e9l\u00e9 une r\u00e9paration importante du fibrocartilage ; aucune r\u00e9action thermique superficielle des tissus n'a \u00e9t\u00e9 observ\u00e9e.<\/td><\/tr><tr><td>Chien (mastiff), 5 ans<\/td><td>Dysplasie s\u00e9v\u00e8re de la hanche avec arthrose secondaire<\/td><td>70% 980 nm + 30% 1 470 nm<\/td><td>20 W en cr\u00eate<\/td><td>Impulsion avec porte, 800 Hz, rapport cyclique 45%<\/td><td>14 $J\/cm\u00b2$<\/td><td>7,200 J<\/td><td>Am\u00e9lioration significative du comportement de d\u00e9charge ; la force verticale maximale a augment\u00e9 de 22% selon l'analyse r\u00e9alis\u00e9e \u00e0 l'aide d'une plateforme de force.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Mise en \u0153uvre clinique avanc\u00e9e pour la th\u00e9rapie articulaire<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Pour optimiser les traitements des articulations profondes \u00e0 l'aide d'un appareil \u00e0 haute puissance <strong>machine de th\u00e9rapie laser<\/strong>, les op\u00e9rateurs doivent adapter leur technique en fonction de la configuration architecturale des grandes articulations.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>                        DEEP JOINT CLINICAL STRATEGY\n                        \n        Flexed Joint Positioning                Extension \/ Neutral Positioning\n      &#091;Opens Articular Space]                 &#091;Targets External Collaterals]\n                 |                                           |\n      - Maximizes photon path to              - Targets collateral ligaments\n        meniscus &amp; cartilage                    and superficial capsule\n      - Minimizes bone shading                - Higher risk of beam scatter\n      - Ideal for 1470nm\/980nm                - Requires direct contact pressure\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">1. Positionnement articulaire dynamique<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Le traitement d'une articulation en position statique et en extension limite la p\u00e9n\u00e9tration des photons en raison de l'occultation osseuse. L'articulation doit \u00eatre plac\u00e9e dans une position confortablement fl\u00e9chie pendant le traitement. La flexion de l'articulation \u00e9largit l'espace intra-articulaire, exposant ainsi les bords du m\u00e9nisque et les surfaces profondes du cartilage directement au faisceau laser.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2. Technique de compression manuelle des tissus<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Le praticien doit exercer une pression ferme vers le bas \u00e0 l'aide d'une t\u00eate de massage \u00e0 bille pendant l'application. Cette compression manuelle repousse l\u2019\u0153d\u00e8me et les liquides interstitiels sus-jacents, aplatissant ainsi la couche de graisse sous-cutan\u00e9e. En r\u00e9duisant l\u2019\u00e9paisseur physique de la barri\u00e8re tissulaire superficielle, la distance \u00e0 parcourir jusqu\u2019\u00e0 la capsule articulaire profonde est raccourcie, ce qui permet \u00e0 un pourcentage plus \u00e9lev\u00e9 de photons d\u2019atteindre la cible interne.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">3. Protocoles de surveillance thermique<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">When using high-power settings (15W to 30W), the clinician should constantly monitor skin temperature by touch or with an infrared thermometer. The skin surface temperature should never exceed 42\u00b0C (107.6\u00b0F). If the tissue approaches this threshold, the operator must increase the handpiece scanning speed or adjust the duty cycle downward (e.g., from 40% to 30%) to allow more thermal relaxation time.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Foire aux questions des acheteurs du groupe v\u00e9t\u00e9rinaire B2B<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Q1 : Quel est l'impact de l'ajout de la longueur d'onde de 1 470 nm sur nos d\u00e9lais d'intervention clinique en cas de blessures aigu\u00ebs chez les chevaux ?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">La longueur d'onde de 1 470 nm pr\u00e9sente un profil d'absorption \u00e9lev\u00e9 par l'eau, ce qui produit un effet sympatholytique imm\u00e9diat et localis\u00e9, r\u00e9duisant la vitesse de conduction nerveuse dans les fibres C nociceptives. Cela permet un soulagement rapide de la douleur, sans m\u00e9dicament, d\u00e8s les 60 premi\u00e8res secondes du traitement.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">La douleur et le gonflement \u00e9tant att\u00e9nu\u00e9s presque instantan\u00e9ment, les chevaux se montrent plus coop\u00e9ratifs lors de la r\u00e9\u00e9ducation physique qui s'ensuit, ce qui permet aux cliniques d'acc\u00e9l\u00e9rer le processus global de r\u00e9tablissement.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Q2: Why is a Class IV multi-wavelength laser classified as an &#8220;FDA cleared cold laser device&#8221; if it generates surface warmth?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The term &#8220;cold laser&#8221; is a functional description rather than a literal one; it signifies that the primary mechanism of action is photochemical (photobiomodulation) rather than photothermal (surgical cutting or ablation).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Les appareils de classe IV avanc\u00e9s sont con\u00e7us pour d\u00e9livrer en toute s\u00e9curit\u00e9 des puissances de cr\u00eate \u00e9lev\u00e9es \u00e0 des structures biologiques profondes. En g\u00e9rant le <strong>rapport cyclique<\/strong>, ces syst\u00e8mes maintiennent la temp\u00e9rature superficielle de la peau bien en dessous du seuil de l\u00e9sions thermiques, garantissant ainsi un traitement s\u00fbr et confortable qui fonctionne comme un laser froid \u00e0 haut rendement.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Q3 : Quelles formations et certifications de s\u00e9curit\u00e9 le personnel de notre clinique doit-il poss\u00e9der pour utiliser un syst\u00e8me de 30 W ?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Les lasers de classe IV pouvant causer des l\u00e9sions oculaires par r\u00e9flexion directe ou sp\u00e9culaire, tous les op\u00e9rateurs doivent suivre une formation certifiante de responsable de la s\u00e9curit\u00e9 laser (LSO). Cette formation porte sur les zones de danger nominales (NHZ), les exigences de densit\u00e9 optique pour les lunettes de protection ($\\text{OD} \\ge 5$ \u00e0 980 nm\/1 470 nm) et les techniques de balayage appropri\u00e9es. La plupart des fournisseurs d'\u00e9quipements m\u00e9dicaux proposent des programmes complets d'int\u00e9gration afin de garantir la conformit\u00e9 totale de votre personnel v\u00e9t\u00e9rinaire \u00e0 la r\u00e9glementation.<\/p>","protected":false},"excerpt":{"rendered":"<p>High-Power Photobiomodulation for Deep Intra-Articular Equine Stifle Rehabilitation Executive Summary: Advanced co-emission of 1470nm and 980nm wavelengths at a 40% duty cycle bypasses the thick joint capsule. This configuration achieves an intra-articular energy density of 15 $J\/cm^2$ without inducing superficial thermal stress. The Intra-Articular Penetration Challenge in Large Animal Orthopedics Veterinary sports medicine physicians treating [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"themepark_post_bcolor":"#f5f5f5","themepark_post_width":"1022px","themepark_post_img":"","themepark_post_img_po":"left","themepark_post_img_re":false,"themepark_post_img_cover":false,"themepark_post_img_fixed":false,"themepark_post_hide_title":false,"themepark_post_main_b":"","themepark_post_main_p":100,"themepark_paddingblock":false,"slim_seo":{"title":"Dual Wavelength Systems Treat Severe Equine Stifle Lameness - FotonMedix","description":"High-Power Photobiomodulation for Deep Intra-Articular Equine Stifle Rehabilitation Executive Summary: Advanced co-emission of 1470nm and 980nm wavelengths at 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