{"id":27810,"date":"2022-07-15T07:35:33","date_gmt":"2022-07-15T11:35:33","guid":{"rendered":"http:\/\/osteomag.ca\/ulnar-nerve-entrapment-at-the-wrist\/"},"modified":"2026-09-27T23:46:47","modified_gmt":"2026-09-28T04:46:47","slug":"ulnar-nerve-entrapment-at-the-wrist","status":"publish","type":"post","link":"https:\/\/osteomag.ca\/en\/ulnar-nerve-entrapment-at-the-wrist\/","title":{"rendered":"Ulnar tunnel syndrome"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_89 counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #000000;color:#000000\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #000000;color:#000000\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 eztoc-toggle-hide-by-default' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/osteomag.ca\/en\/ulnar-nerve-entrapment-at-the-wrist\/#Injury_to_the_distal_ulnar_nerve_can_occur_through\" >Injury to the distal ulnar nerve can occur through<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/osteomag.ca\/en\/ulnar-nerve-entrapment-at-the-wrist\/#Two_carpal_bones_are_important_in_relation_to_the_ulnar_nerve_at_the_wrist\" >Two carpal bones are important in relation to the ulnar nerve at the wrist<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/osteomag.ca\/en\/ulnar-nerve-entrapment-at-the-wrist\/#What_are_the_causes_of_Guyons_canal_syndrome\" >What are the causes of Guyon&#8217;s canal syndrome?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/osteomag.ca\/en\/ulnar-nerve-entrapment-at-the-wrist\/#What_are_the_symptoms_of_Guyons_canal_syndrome\" >What are the symptoms of Guyon&#8217;s canal syndrome?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/osteomag.ca\/en\/ulnar-nerve-entrapment-at-the-wrist\/#Differential_diagnosis\" >Differential diagnosis<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/osteomag.ca\/en\/ulnar-nerve-entrapment-at-the-wrist\/#Therapeutic_approach\" >Therapeutic approach<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/osteomag.ca\/en\/ulnar-nerve-entrapment-at-the-wrist\/#Reference\" >R\u00e9f\u00e9rence<\/a><\/li><\/ul><\/nav><\/div>\n\n<p class=\"has-white-color has-vivid-cyan-blue-background-color has-text-color has-background wp-block-paragraph\">The ulnar nerve runs through Guyon&#8217;s canal at the wrist and will be compromised if there is a lesion occupying Guyon&#8217;s canal, such as a lipoma, ganglion, ulnar artery aneurysm or muscle abnormality. Repeated trauma, such as jackhammering or handlebar pressure in cyclists, can also cause ulnar neuropathy in the wrist.&#13;\n<\/p>\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img decoding=\"async\" width=\"442\" height=\"245\" src=\"https:\/\/osteomag.ca\/wp-content\/uploads\/2022\/09\/Canal-de-Guyon.jpg\" alt=\"\" class=\"wp-image-31391\" srcset=\"https:\/\/osteomag.ca\/wp-content\/uploads\/2022\/09\/Canal-de-Guyon.jpg 442w, https:\/\/osteomag.ca\/wp-content\/uploads\/2022\/09\/Canal-de-Guyon-80x44.jpg 80w, https:\/\/osteomag.ca\/wp-content\/uploads\/2022\/09\/Canal-de-Guyon-150x83.jpg 150w, https:\/\/osteomag.ca\/wp-content\/uploads\/2022\/09\/Canal-de-Guyon-300x166.jpg 300w\" sizes=\"(max-width: 442px) 100vw, 442px\" \/><\/figure><\/div>\n\n<div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\">\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Injury_to_the_distal_ulnar_nerve_can_occur_through\"><\/span>Injury to the distal ulnar nerve can occur through<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ul class=\"wp-block-list\"><li>Compression<\/li><li>Inflammation<\/li><li>Trauma<\/li><li>Vascular insufficiency [5][6][7]<\/li><\/ul><\/div><\/div>\n<\/div><\/div>\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Two_carpal_bones_are_important_in_relation_to_the_ulnar_nerve_at_the_wrist\"><\/span>Two carpal bones are important in relation to the ulnar nerve at the wrist<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n<ul class=\"wp-block-list\"><li>Pisiforme<\/li><li>Hamatum<\/li><\/ul>\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"314\" height=\"197\" src=\"https:\/\/osteomag.ca\/wp-content\/uploads\/2022\/09\/Guyon-canal-fr-1.jpg\" alt=\"\" class=\"wp-image-31829\" srcset=\"https:\/\/osteomag.ca\/wp-content\/uploads\/2022\/09\/Guyon-canal-fr-1.jpg 314w, https:\/\/osteomag.ca\/wp-content\/uploads\/2022\/09\/Guyon-canal-fr-1-80x50.jpg 80w, https:\/\/osteomag.ca\/wp-content\/uploads\/2022\/09\/Guyon-canal-fr-1-150x94.jpg 150w, https:\/\/osteomag.ca\/wp-content\/uploads\/2022\/09\/Guyon-canal-fr-1-300x188.jpg 300w\" sizes=\"(max-width: 314px) 100vw, 314px\" \/><\/figure>\n<h2 class=\"wp-block-heading\" id=\"h-quelles-sont-les-causes-du-syndrome-du-canal-de-guyon\"><span class=\"ez-toc-section\" id=\"What_are_the_causes_of_Guyons_canal_syndrome\"><\/span>What are the causes of Guyon&#8217;s canal syndrome?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n<ul class=\"wp-block-list\"><li>Palmar ganglion cyst<\/li><li>Fracture of the hamate hook<\/li><li>Hypertrophy of the palmar muscle<\/li><li>Fracture or dislocation of the pisiform<\/li><li>Tumors (lipoma)<\/li><li>Repetitive strain injuries (e.g. external compression of a cyclist&#8217;s handlebars)<\/li><li>Aberrant muscle (e.g. abductor digiti minimi) or excess fatty tissue in the canal<\/li><li>Ulnar artery thrombosis or aneurysm (e.g., hypothenar hammer syndrome)<\/li><\/ul>\n<h2 class=\"wp-block-heading\" id=\"h-quelles-sont-les-symptomes-du-syndrome-du-canal-de-guyon\"><span class=\"ez-toc-section\" id=\"What_are_the_symptoms_of_Guyons_canal_syndrome\"><\/span>What are the symptoms of Guyon&#8217;s canal syndrome?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n<p class=\"wp-block-paragraph\">Symptoms generally start with a numbing sensation in the ring and little fingers, usually early in the morning when the patient wakes up. They may progress to a shooting pain in the wrist and hand, which is followed by a reduction in sensation in the ring and little fingers.&#13;\n<\/p>\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img decoding=\"async\" width=\"276\" height=\"183\" src=\"https:\/\/osteomag.ca\/wp-content\/uploads\/2022\/07\/guyon.jpg\" alt=\"\" class=\"wp-image-27777\" srcset=\"https:\/\/osteomag.ca\/wp-content\/uploads\/2022\/07\/guyon.jpg 276w, https:\/\/osteomag.ca\/wp-content\/uploads\/2022\/07\/guyon-80x53.jpg 80w, https:\/\/osteomag.ca\/wp-content\/uploads\/2022\/07\/guyon-150x99.jpg 150w\" sizes=\"(max-width: 276px) 100vw, 276px\" \/><\/figure><\/div>\n\n<div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\">\n<h2 class=\"wp-block-heading\" id=\"h-diagnostique-differentiel\"><span class=\"ez-toc-section\" id=\"Differential_diagnosis\"><\/span>Differential diagnosis<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ul class=\"wp-block-list\"><li>Carpal tunnel syndrome (paresthesia in thumb, index, long and ring fingers)<\/li><li>Cervical radiculopathy (C7-C8)<\/li><li>Peripheral neuropathy<\/li><li>Thoracic outlet syndrome<\/li><li>Ulnar compression at the elbow<\/li><li>Wrist arthritis<\/li><li>Alcohol-related neuropathy<\/li><li>Amyotrophic lateral sclerosis<\/li><li>Brachial plexus abnormalities<\/li><li>Cervical disc disease<\/li><li>Cervical spondylosis<\/li><li>\u00c9picondylitis<\/li><li>Pancoastal tumor<\/li><li>Traumatic injuries of peripheral nerves<\/li><\/ul><\/div><\/div>\n\n<h2 class=\"wp-block-heading\" id=\"h-approche-therapeuthique\"><span class=\"ez-toc-section\" id=\"Therapeutic_approach\"><\/span>Therapeutic approach<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n<ul class=\"wp-block-list\"><li>Eliminate causes of nerve compression<\/li><li>Reduce or stop activities that aggravate symptoms<\/li><\/ul>\n<div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\">\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Reference\"><\/span>R\u00e9f\u00e9rence<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ol class=\"wp-block-list\"><li>Ramage JL, Varacallo M.\u00a0StatPearls [Internet].\u00a0StatPearls Publishing; Treasure Island (FL): Aug 11, 2021. Anatomy, Shoulder and Upper Limb, Hand\u00a0Guyon\u00a0Canal. [<a href=\"https:\/\/www.ncbi.nlm.nih.gov\/pubmed\/30521235\">PubMed<\/a>]<\/li><li>Strohl AB, Zelouf DS. Ulnar Tunnel Syndrome, Radial Tunnel Syndrome, Anterior Interosseous Nerve Syndrome, and Pronator Syndrome.\u00a0Instr Course Lect.\u00a02017 Feb 15;66:153-162.\u00a0[<a href=\"https:\/\/www.ncbi.nlm.nih.gov\/pubmed\/28594495\">PubMed<\/a>]<\/li><li>Jim\u00e9nez I, Manguila F, Dury M. Hypothenar hammer syndrome. A case report.\u00a0Rev Esp Cir Ortop Traumatol.\u00a02017 Sep &#8211; Oct;61(5):354-358.\u00a0[<a href=\"https:\/\/www.ncbi.nlm.nih.gov\/pubmed\/27843038\">PubMed<\/a>]<\/li><li>Hu SY, Choi JG, Son BC. Type III\u00a0Guyon\u00a0Syndrome in &#8216;B Boy&#8217; Break-Dancer: A Case Report.\u00a0Korean J Neurotrauma.\u00a02015 Oct;11(2):183-6.\u00a0[<a href=\"https:\/\/www.ncbi.nlm.nih.gov\/pmc\/articles\/PMC4847497\/\">PMC free article<\/a>] [<a href=\"https:\/\/www.ncbi.nlm.nih.gov\/pubmed\/27169091\">PubMed<\/a>]<\/li><li>Depukat P, Mizia E, Kuniewicz M, Bonczar T, Mazur M, Pe\u0142ka P, Mr\u00f3z I, Lipski M, Tomaszewski K. Syndrome of canal of\u00a0<strong>Guyon<\/strong>\u00a0&#8211; definition, diagnosis, treatment and complication.\u00a0Folia Med Cracov.\u00a02015;55(1):17-23.\u00a0[<a href=\"https:\/\/www.ncbi.nlm.nih.gov\/pubmed\/26774628\">PubMed<\/a>]<\/li><li>Brown CK, Stainsby B, Sovak G.\u00a0<strong>Guyon<\/strong>\u00a0Canal Syndrome: lack of management in a case of unresolved handlebar palsy.\u00a0J Can Chiropr Assoc.\u00a02014 Dec;58(4):413-20.\u00a0[<a href=\"https:\/\/www.ncbi.nlm.nih.gov\/pmc\/articles\/PMC4262815\/\">PMC free article<\/a>] [<a href=\"https:\/\/www.ncbi.nlm.nih.gov\/pubmed\/25550666\">PubMed<\/a>]<\/li><li>Hui-Chou HG, McClinton MA. Current options for treatment of hypothenar hammer syndrome.\u00a0Hand Clin.\u00a02015 Feb;31(1):53-62.\u00a0[<a href=\"https:\/\/www.ncbi.nlm.nih.gov\/pubmed\/25455356\">PubMed<\/a>]<\/li><li>Chen SH, Tsai TM. Ulnar tunnel syndrome.\u00a0J Hand Surg Am.\u00a02014 Mar;39(3):571-9.\u00a0[<a href=\"https:\/\/www.ncbi.nlm.nih.gov\/pubmed\/24559635\">PubMed<\/a>]<\/li><li>Andreisek G, Crook DW, Burg D, Marincek B, Weishaupt D. Peripheral neuropathies of the median, radial, and ulnar nerves: MR imaging features.\u00a0Radiographics.\u00a02006 Sep-Oct;26(5):1267-87.\u00a0[<a href=\"https:\/\/www.ncbi.nlm.nih.gov\/pubmed\/16973765\">PubMed<\/a>]<\/li><li>van Tulder M, Malmivaara A, Koes B. Repetitive strain injury.\u00a0Lancet.\u00a02007 May 26;369(9575):1815-1822.\u00a0[<a href=\"https:\/\/www.ncbi.nlm.nih.gov\/pubmed\/17531890\">PubMed<\/a>]<\/li><li>Kaiser R, Hou\u0161\u0165ava L, Brzezny R, Haninec P. [The results of ulnar nerve decompression in\u00a0Guyon&#8217;s canal syndrome].\u00a0Acta Chir Orthop Traumatol Cech.\u00a02012;79(3):243-8.\u00a0[<a href=\"https:\/\/www.ncbi.nlm.nih.gov\/pubmed\/22840956\">PubMed<\/a>]<\/li><\/ol>\n\n\n<p class=\"wp-block-paragraph\">Credit in part: Dmitri Aleksenko;\u00a0Matthew Varacallo.<\/p>\n<\/div><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Ulnar tunnel (Guyon&#8217;s canal) syndrome results from compression of the ulnar nerve at the wrist by ganglia, lipomas, fractures, vascular lesions or repetitive trauma (e.g., handlebar or jackhammer use), causing numbness, pain and sensory loss in the ring and little fingers.<\/p>\n","protected":false},"author":1,"featured_media":27779,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"tdm_status":"","tdm_grid_status":"","footnotes":""},"categories":[568,140,142],"tags":[],"class_list":["post-27810","post","type-post","status-publish","format-standard","has-post-thumbnail","category-nerve-compression","category-compression-nerveuse","category-poignet"],"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/osteomag.ca\/en\/wp-json\/wp\/v2\/posts\/27810","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/osteomag.ca\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/osteomag.ca\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/osteomag.ca\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/osteomag.ca\/en\/wp-json\/wp\/v2\/comments?post=27810"}],"version-history":[{"count":0,"href":"https:\/\/osteomag.ca\/en\/wp-json\/wp\/v2\/posts\/27810\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/osteomag.ca\/en\/wp-json\/wp\/v2\/media\/27779"}],"wp:attachment":[{"href":"https:\/\/osteomag.ca\/en\/wp-json\/wp\/v2\/media?parent=27810"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/osteomag.ca\/en\/wp-json\/wp\/v2\/categories?post=27810"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/osteomag.ca\/en\/wp-json\/wp\/v2\/tags?post=27810"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}