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class="content-area" id="primary"> <main class="site-main" id="main"> <article id="post-12160" class="post-12160 post type-post status-publish format-standard hentry category-muscles-tendons tag-arthritis tag-arthroscopy tag-elbow tag-hand tag-humerus tag-muscles-tendons tag-nerves tag-tibia-and-fibula tag-trauma-fractures tag-wrist" itemtype="https://schema.org/CreativeWork" itemscope> <div class="inside-article"> <header class="entry-header">   <span property="itemListElement" typeof="ListItem"><a property="item" typeof="WebPage" title="Go to Wheeless' Textbook of Orthopaedics." href="https://www.wheelessonline.com" class="home" data-wpel-link="internal"><span property="name">Home</span></a><meta property="position" content="1"></span> » <span property="itemListElement" typeof="ListItem"><a property="item" typeof="WebPage" title="Go to the Muscles Tendons category archives." href="https://www.wheelessonline.com/./muscles-tendons/" class="taxonomy category" data-wpel-link="internal"><span property="name">Muscles Tendons</span></a><meta property="position" content="2"></span> » <span property="itemListElement" typeof="ListItem"><span property="name" class="post post-post current-item">Flexor Carpi Ulnaris</span><meta property="url" content="https://www.wheelessonline.com/muscles-tendons/flexor-carpi-ulnaris/"><meta property="position" content="3"></span><hr style="border-top:1px dashed #ccc; width:75%"/> <h1 class="entry-title" itemprop="headline">Flexor Carpi Ulnaris</h1> </header> <div class="entry-content" itemprop="text"> <div class="mh-row clearfix"> <h1></h1> <div class="bodycopy"> <hr size="3"/> - See: <a href="/bones/hand/muscles-of-the-volar-forearm/" data-wpel-link="internal">Forearm Flexors</a></p> <p><strong>- Anatomy:</strong><br /> 聽聽 - origin: 2 heads from medial epicondyle of humerus & medial border of olecranon;<br /> 聽聽 - insertion: palmar surface of pisiform, hamate, and bases of 5th metacarpal;<br /> 聽聽 - action: flexes and adducts the hand at the wrist;<br /> 聽聽 - synergists: <a href="/muscles-tendons/flexor-carpi-radialis/" data-wpel-link="internal">flexor carpi radialis</a>;<br /> 聽聽 - nerve supply: <a href="/nerves/ulnar-nerve/" data-wpel-link="internal">ulnar</a> - <a href="/nerves/c8-neurologic-level/" data-wpel-link="internal">C8</a> > <a href="/nerves/t1-neurologic-level/" data-wpel-link="internal">T1</a>;</p> <p><strong>- Discussion:</strong><br /> 聽聽聽 - Flexor Carpi Ulnaris inserts into the pisiform bone;<br /> 聽聽聽 - tendon is covered > 50% by muscle fibers at wrist level & extends to volar capsule ligament, joining this structure to form a roof for ulnar artery and nerve;<br /> 聽聽聽 - FCU tendon protects 聽ulnar nerve & artery at wrist level and provides point of recongnition of these structures when local nerve block is performed;</p> <p><strong>- FCU Tenosynovitis:</strong><br /> 聽聽聽 - assoc w/ chronic repetitive trauma and may be bilateral;<br /> 聽聽聽 - characterized by tenderness directly over tendon at wrist & pain聽worsen by wrist flexion, or ulnar deviation against resistance;<br /> 聽聽聽 - painful palpation of pisiform;<br /> 聽聽聽 - ulnar flexion against resistance painful;<br /> 聽聽聽 - calcification may be painful;<br /> 聽聽聽 - in most instances x-rays are normal, but calcific deposits in region of tendon may occasionally be seen;<br /> 聽聽聽 - <strong>diff dx:</strong><br /> 聽聽聽聽聽聽- pisotriquetrial arthritis<br /> 聽聽聽聽聽聽- ulnar neuritis<br /> 聽聽聽 - <strong>treatment</strong><br /> 聽聽聽聽聽聽- splinting<br /> 聽聽聽聽聽聽- Nsaids<br /> 聽聽聽聽聽聽- Injection - steroid</p> <p><strong>- Calcific Tendinitis:</strong><br /> 聽聽 - common type of calcific tendinitis which occurs at its insertion into pisiform;<br /> 聽聽 - <strong>x-ray:</strong><br /> 聽聽聽聽聽聽- forearm is held in mid-supination to demonstrate calcific deposits聽just proximal to the pisiform</p> <hr size="3"/> <br /> <a onclick="window.open(this.href,'','resizable=no,location=no,menubar=no,scrollbars=yes,status=no,toolbar=no,fullscreen=no,dependent=no,status'); return false" href="http://www.ncbi.nlm.nih.gov/pubmed/2917431" data-wpel-link="external" target="_blank" rel="external noopener noreferrer" class="wpel-icon-right">The use of a flexor carpi ulnaris muscle flap in the treatment of an infected nonunion of the proximal ulna. A case report<span class="wpel-icon wpel-image wpel-icon-6"></span></a>.</p> <p><a onclick="window.open(this.href,'','resizable=no,location=no,menubar=no,scrollbars=yes,status=no,toolbar=no,fullscreen=no,dependent=no,status'); return false" href="http://www.ncbi.nlm.nih.gov/pubmed/8423325" data-wpel-link="external" target="_blank" rel="external noopener noreferrer" class="wpel-icon-right">Excursion of prime wrist tendons<span class="wpel-icon wpel-image wpel-icon-6"></span></a>.</p> <p><a onclick="window.open(this.href,'','resizable=no,location=no,menubar=no,scrollbars=yes,status=no,toolbar=no,fullscreen=no,dependent=no,status'); return false" href="http://www.ncbi.nlm.nih.gov/pubmed/1670439" data-wpel-link="external" target="_blank" rel="external noopener noreferrer" class="wpel-icon-right">Surgical treatment of medial epicondylitis. Results in 35 elbows<span class="wpel-icon wpel-image wpel-icon-6"></span></a>.</div> <p></p> <hr/> <p></p> </div> </div> <footer class="entry-meta" aria-label="Entry meta"> <span class="cat-links"><span class="gp-icon icon-categories"><svg viewBox="0 0 512 512" aria-hidden="true" xmlns="http://www.w3.org/2000/svg" width="1em" height="1em"><path d="M0 112c0-26.51 21.49-48 48-48h110.014a48 48 0 0143.592 27.907l12.349 26.791A16 16 0 00228.486 128H464c26.51 0 48 21.49 48 48v224c0 26.51-21.49 48-48 48H48c-26.51 0-48-21.49-48-48V112z" /></svg></span><span class="screen-reader-text">Categories </span><a href="https://www.wheelessonline.com/./muscles-tendons/" rel="category tag" data-wpel-link="internal">Muscles Tendons</a></span> <span class="tags-links"><span class="gp-icon icon-tags"><svg viewBox="0 0 512 512" aria-hidden="true" xmlns="http://www.w3.org/2000/svg" width="1em" height="1em"><path d="M20 39.5c-8.836 0-16 7.163-16 16v176c0 4.243 1.686 8.313 4.687 11.314l224 224c6.248 6.248 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