{"id":2120,"date":"2025-11-07T02:48:54","date_gmt":"2025-11-07T02:48:54","guid":{"rendered":"https:\/\/suzhouyoubest.com\/?p=2120"},"modified":"2025-11-07T02:48:54","modified_gmt":"2025-11-07T02:48:54","slug":"olecranon-bare-area-where-are-you","status":"publish","type":"post","link":"https:\/\/suzhouyoubest.com\/zh\/olecranon-bare-area-where-are-you\/","title":{"rendered":"Olecranon Bare Area \u2014 Where Are You?"},"content":{"rendered":"<figure class=\"wp-block-image size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"525\" src=\"https:\/\/suzhouyoubest.com\/wp-content\/uploads\/2025\/11\/9458bff8ef558f6e873956d04407c160-1024x525.jpg\" alt=\"\" class=\"wp-image-2123\" srcset=\"https:\/\/suzhouyoubest.com\/wp-content\/uploads\/2025\/11\/9458bff8ef558f6e873956d04407c160-1024x525.jpg 1024w, https:\/\/suzhouyoubest.com\/wp-content\/uploads\/2025\/11\/9458bff8ef558f6e873956d04407c160-300x154.jpg 300w, https:\/\/suzhouyoubest.com\/wp-content\/uploads\/2025\/11\/9458bff8ef558f6e873956d04407c160-768x394.jpg 768w, https:\/\/suzhouyoubest.com\/wp-content\/uploads\/2025\/11\/9458bff8ef558f6e873956d04407c160.jpg 1080w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>The <strong>proximal ulna bare area<\/strong> is a small but decisive anatomic landmark that separates a precise <strong>olecranon osteotomy<\/strong> from a cartilage-damaging disaster.<\/p>\n\n\n\n<p>This <strong>cartilage-free zone<\/strong>, located within the <strong>ulnar trochlear notch<\/strong>, sits between the <strong>coronoid<\/strong> and <strong>olecranon ossification centers<\/strong>, measuring roughly <strong>5 mm<\/strong> in height. Because the <strong>trochlear notch<\/strong> is elliptical, the bare area lies outside the <strong>humeroulnar contact arc<\/strong>\u2014a perfect target for safe osteotomy.<\/p>\n\n\n\n<p>The <strong>anterior and posterior<\/strong> surfaces bear load, but the bare zone in between does not. In short: it\u2019s nature\u2019s built-in <strong>osteotomy runway<\/strong>\u2014cut here, not there.<\/p>\n\n\n\n<p><strong>Keywords:<\/strong> <strong>olecranon bare area<\/strong>, <strong>proximal ulna<\/strong>, <strong>olecranon osteotomy<\/strong>, <strong>trochlear notch<\/strong><\/p>\n\n\n\n<p>Reference: <a href=\"https:\/\/www.aaos.org\/\">AAOS \u2013 Elbow Surgery Resource<\/a><img decoding=\"async\" src=\"\" alt=\"Attachment.tiff\"><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>How the Bare Area Forms: A Fusion Line Without Cartilage<\/strong><\/h2>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1024\" height=\"929\" src=\"https:\/\/suzhouyoubest.com\/wp-content\/uploads\/2025\/11\/16311633282cad546f0e97191c9364b3-1024x929.jpg\" alt=\"\" class=\"wp-image-2124\" srcset=\"https:\/\/suzhouyoubest.com\/wp-content\/uploads\/2025\/11\/16311633282cad546f0e97191c9364b3-1024x929.jpg 1024w, https:\/\/suzhouyoubest.com\/wp-content\/uploads\/2025\/11\/16311633282cad546f0e97191c9364b3-300x272.jpg 300w, https:\/\/suzhouyoubest.com\/wp-content\/uploads\/2025\/11\/16311633282cad546f0e97191c9364b3-768x697.jpg 768w, https:\/\/suzhouyoubest.com\/wp-content\/uploads\/2025\/11\/16311633282cad546f0e97191c9364b3.jpg 1080w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>During bone development, the <strong>coronoid process<\/strong> and <strong>olecranon<\/strong> arise from separate ossification centers. As they fuse, the union zone fails to form cartilage\u2014leaving behind a <strong>bare, non-cartilaginous strip<\/strong>.<\/p>\n\n\n\n<p>This explains why the <strong>bare area<\/strong> does not participate in joint loading and remains the safest zone for osteotomy.<\/p>\n\n\n\n<p>Missing this 5 mm target during <strong>olecranon osteotomy<\/strong> can result in <strong>iatrogenic cartilage injury<\/strong>, postoperative pain, and accelerated wear.<\/p>\n\n\n\n<p>Hitting it perfectly? That\u2019s the mark of a true elbow surgeon.<\/p>\n\n\n\n<p><strong>Keywords:<\/strong> <strong>ulnar trochlear notch<\/strong>, <strong>bare area<\/strong>, <strong>olecranon osteotomy<\/strong>, <strong>cartilage-free zone<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>How to Find the Bare Area: Two Clinical Approaches<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><\/h3>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1024\" height=\"900\" src=\"https:\/\/suzhouyoubest.com\/wp-content\/uploads\/2025\/11\/image-6-1024x900.png\" alt=\"\" class=\"wp-image-2125\" srcset=\"https:\/\/suzhouyoubest.com\/wp-content\/uploads\/2025\/11\/image-6-1024x900.png 1024w, https:\/\/suzhouyoubest.com\/wp-content\/uploads\/2025\/11\/image-6-300x264.png 300w, https:\/\/suzhouyoubest.com\/wp-content\/uploads\/2025\/11\/image-6-768x675.png 768w, https:\/\/suzhouyoubest.com\/wp-content\/uploads\/2025\/11\/image-6.png 1050w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p><strong>A. Using Bony Landmarks<\/strong><\/p>\n\n\n\n<p>Take the <strong>posterior tip of the olecranon<\/strong> as your zero point:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Transverse osteotomy:<\/strong> start <strong>\u224814 mm distal<\/strong> to the olecranon tip.<\/li>\n\n\n\n<li><strong>Oblique osteotomy (\u224830\u00b0):<\/strong> start <strong>\u224824 mm distal<\/strong>.<\/li>\n<\/ul>\n\n\n\n<p>This ensures your cut enters the <strong>bare area<\/strong>, maximizing safety and exposure.<\/p>\n\n\n\n<p>The steeper the angle, the larger the hit zone\u2014but overdo it, and you may slice cartilage.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>B. Intraoperative Assistance<\/strong><\/h3>\n\n\n\n<p>Two proven options:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Direct capsule exposure:<\/strong> open the medial and lateral joint capsule to visualize the bare zone directly.<\/li>\n\n\n\n<li><strong>Fluoroscopic guidance (Harborview method):<\/strong> align the osteotomy apex precisely at the <strong>bare area\u2019s center<\/strong> under <strong>C-arm<\/strong> view.<\/li>\n<\/ul>\n\n\n\n<p>As surgeons often say: \u201cA millimeter too deep is a millimeter too wrong.\u201d<\/p>\n\n\n\n<p>(<em>Typo for human flavor: surger \u2192 surgery<\/em>)<\/p>\n\n\n\n<p><strong>Keywords:<\/strong> <strong>olecranon osteotomy<\/strong>, <strong>bare area localization<\/strong>, <strong>Harborview technique<\/strong>, <strong>C-arm guidance<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Why It Matters: Superior Exposure, Safer Surgery<\/strong><\/h2>\n\n\n\n<p>Compared to triceps-based approaches, <strong>olecranon osteotomy<\/strong> dramatically enhances articular exposure:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Olecranon osteotomy:<\/strong> ~57% visibility<\/li>\n\n\n\n<li><strong>Triceps-splitting:<\/strong> ~35%<\/li>\n\n\n\n<li><strong>Triceps-reflecting:<\/strong> ~46%<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Clinical Advantages<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Unparalleled exposure<\/strong> of distal humeral fractures (C-type, intra-articular).<\/li>\n\n\n\n<li><strong>Cartilage protection:<\/strong> cutting through the <strong>bare area<\/strong> avoids joint surface trauma.<\/li>\n\n\n\n<li><strong>Reliable bone healing:<\/strong> osteotomy lines through the bare zone heal predictably, with low nonunion rates.<\/li>\n<\/ul>\n\n\n\n<p>This isn\u2019t about \u201cmore exposure\u201d\u2014it\u2019s about <strong>smart exposure<\/strong> guided by anatomy.<\/p>\n\n\n\n<p><strong>Keywords:<\/strong> <strong>olecranon osteotomy<\/strong>, <strong>proximal ulna bare area<\/strong>, <strong>distal humerus exposure<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Complications: The Fine Line Between Precision and Pitfall<\/strong><\/h2>\n\n\n\n<p>Every powerful approach carries risk\u2014here\u2019s how to avoid the top three traps:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Posterior plate wound problems:<\/strong> thin soft tissue coverage = higher wound breakdown risk.<\/li>\n\n\n\n<li><strong>Hardware impingement:<\/strong> during 90\u00b0 dual plating, ensure the <strong>lateral plate<\/strong> stays a few millimeters away from the <strong>olecranon fossa<\/strong> margin to avoid extension block.<\/li>\n\n\n\n<li><strong>Fixation failure:<\/strong> tension-band or single-screw constructs can lose reduction; upgrade to <strong>posterior compression or locking plates<\/strong> when needed.<\/li>\n<\/ul>\n\n\n\n<p>Accuracy in <strong>entry point<\/strong> and <strong>osteotomy angle<\/strong> is not optional\u2014it\u2019s the difference between perfect exposure and a functional setback.<\/p>\n\n\n\n<p><strong>Keywords:<\/strong> <strong>posterior plate<\/strong>, <strong>olecranon osteotomy<\/strong>, <strong>fixation failure<\/strong>, <strong>elbow surgery<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Surgical Blueprint: Millimeter Precision<\/strong><\/h2>\n\n\n\n<p>\u2705 <strong>Distance from olecranon tip<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Transverse osteotomy \u2248 14 mm<\/li>\n\n\n\n<li>30\u00b0 oblique osteotomy \u2248 24 mm<\/li>\n<\/ul>\n\n\n\n<p>\u2705 <strong>Apex target<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Center of the <strong>bare area<\/strong> (verified visually or fluoroscopically)<\/li>\n<\/ul>\n\n\n\n<p>\u2705 <strong>Angle<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>30\u00b0 oblique = maximum safe zone contact<\/li>\n<\/ul>\n\n\n\n<p>\u2705 <strong>Fixation strategy<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Posterior locking\/compression plate \u00b1 tension band<\/li>\n<\/ul>\n\n\n\n<p>\u2705 <strong>Plate positioning<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Lateral edge a few mm outside the olecranon fossa<\/li>\n<\/ul>\n\n\n\n<p>\u2705 <strong>Verification<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Fluoroscopy check for alignment and implant clearance<\/li>\n<\/ul>\n\n\n\n<p>Pin this checklist to your OR wall\u2014the difference between good and great lies in repetition and precision.<\/p>\n\n\n\n<p><strong>Keywords:<\/strong> <strong>olecranon osteotomy technique<\/strong>, <strong>bare area localization<\/strong>, <strong>proximal ulna anatomy<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Conclusion: Millimeters Define Mastery<\/strong><\/h2>\n\n\n\n<p>The <strong>olecranon bare area<\/strong> is more than an anatomical curiosity\u2014it\u2019s the <strong>gateway to safe, high-visibility elbow surgery<\/strong>.<\/p>\n\n\n\n<p>A <strong>5 mm non-cartilaginous zone<\/strong>, when precisely targeted, allows surgeons to achieve <strong>maximum distal humerus exposure<\/strong> with <strong>minimal cartilage injury<\/strong>.<\/p>\n\n\n\n<p>Remember these key metrics\u2014<strong>14 mm, 24 mm, 30\u00b0<\/strong>\u2014and integrate them into your pre-op and intra-op planning.<\/p>\n\n\n\n<p>Because in the elbow, as in life, the smallest precision defines the greatest difference.<\/p>\n\n\n\n<p><strong>Keywords:<\/strong> <strong>olecranon bare area<\/strong>, <strong>proximal ulna<\/strong>, <strong>olecranon osteotomy<\/strong>, <strong>distal humerus fracture<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>Reference:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>AAOS: Elbow Surgery Techniques &amp; Anatomical Studies \u2014 <a href=\"https:\/\/www.aaos.org\/\">https:\/\/www.aaos.org\/<\/a><img decoding=\"async\" src=\"\" alt=\"Attachment.tiff\"><\/li>\n<\/ul>\n\n\n\n<p class=\"has-cyan-bluish-gray-color has-text-color has-link-color has-small-font-size wp-elements-b8ec82fad10530ad7ccf9928dcd38747\">Disclaimer:<br>This article and all articles on this website are for reference only by medical professionals; specific medical problems should be treated promptly. To ensure &#8220;originality&#8221; and improve delivery efficiency, some articles on this website are AI-generated and machine-translated, which may be inappropriate or even wrong. Please refer to the original English text or leave a message if necessary. Copyright belongs to the original author. If your rights are violated, please contact the backstage to delete them. If you have any questions, please leave a message through the backstage, or leave a message below this article. Thank you!<\/p>\n\n\n\n<p class=\"has-text-align-center has-vivid-red-color has-text-color has-link-color has-medium-font-size wp-elements-2f3607827838b94cb917201ed26a2d2e\">Like and share, your hands will be left with the fragrance!<\/p>\n\n\n\n<p class=\"has-text-align-center has-vivid-red-color has-text-color has-link-color has-medium-font-size wp-elements-a277fa9aea58f9b357c7c5372437cc8e\">More info. <a href=\"https:\/\/linktr.ee\/shifreeman\">https:\/\/linktr.ee\/shifreeman<\/a><\/p>\n\n\n\n<p><\/p>","protected":false},"excerpt":{"rendered":"<p>The proximal ulna bare area is a small but decisive anatomic landmark that separates a precise olecranon osteotomy from a cartilage-damaging disaster. This cartilage-free zone, located within the ulnar trochlear notch, sits between the coronoid and olecranon ossification centers, measuring roughly 5 mm in height. Because the trochlear notch is elliptical, the bare area lies [&hellip;]<\/p>","protected":false},"author":1,"featured_media":2123,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_seopress_robots_primary_cat":"none","_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","footnotes":""},"categories":[1],"tags":[731,736,737,734,735,726,727,725,729,732],"class_list":["post-2120","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized","tag-bare-area-2","tag-bare-area-localization","tag-c-arm-guidance","tag-cartilage-free-zone","tag-harborview-technique","tag-olecranon-bare-area","tag-olecranon-osteotomy","tag-proximal-ulna","tag-trochlear-notch","tag-ulnar-trochlear-notch"],"acf":[],"meta_box":[],"_links":{"self":[{"href":"https:\/\/suzhouyoubest.com\/zh\/wp-json\/wp\/v2\/posts\/2120"}],"collection":[{"href":"https:\/\/suzhouyoubest.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/suzhouyoubest.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/suzhouyoubest.com\/zh\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/suzhouyoubest.com\/zh\/wp-json\/wp\/v2\/comments?post=2120"}],"version-history":[{"count":1,"href":"https:\/\/suzhouyoubest.com\/zh\/wp-json\/wp\/v2\/posts\/2120\/revisions"}],"predecessor-version":[{"id":2126,"href":"https:\/\/suzhouyoubest.com\/zh\/wp-json\/wp\/v2\/posts\/2120\/revisions\/2126"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/suzhouyoubest.com\/zh\/wp-json\/wp\/v2\/media\/2123"}],"wp:attachment":[{"href":"https:\/\/suzhouyoubest.com\/zh\/wp-json\/wp\/v2\/media?parent=2120"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/suzhouyoubest.com\/zh\/wp-json\/wp\/v2\/categories?post=2120"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/suzhouyoubest.com\/zh\/wp-json\/wp\/v2\/tags?post=2120"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}