{"version":"1.0","provider_name":"Best Spine Hospitals","provider_url":"https:\/\/www.bestspinehospitals.com\/blog","author_name":"drspine","author_url":"https:\/\/www.bestspinehospitals.com\/blog\/author\/drspine\/","title":"S3 segment: Definition, Uses, and Clinical Overview - Best Spine Hospitals","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"KIRmZQN1Fq\"><a href=\"https:\/\/www.bestspinehospitals.com\/blog\/s3-segment-definition-uses-and-clinical-overview\/\">S3 segment: Definition, Uses, and Clinical Overview<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/www.bestspinehospitals.com\/blog\/s3-segment-definition-uses-and-clinical-overview\/embed\/#?secret=KIRmZQN1Fq\" width=\"600\" height=\"338\" title=\"&#8220;S3 segment: Definition, Uses, and Clinical Overview&#8221; &#8212; Best Spine Hospitals\" data-secret=\"KIRmZQN1Fq\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script type=\"text\/javascript\">\n\/* <![CDATA[ *\/\n\/*! This file is auto-generated *\/\n!function(d,l){\"use strict\";l.querySelector&&d.addEventListener&&\"undefined\"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!\/[^a-zA-Z0-9]\/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret=\"'+t.secret+'\"]'),o=l.querySelectorAll('blockquote[data-secret=\"'+t.secret+'\"]'),c=new RegExp(\"^https?:$\",\"i\"),i=0;i<o.length;i++)o[i].style.display=\"none\";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute(\"style\"),\"height\"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):\"link\"===t.message&&(r=new URL(s.getAttribute(\"src\")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener(\"message\",d.wp.receiveEmbedMessage,!1),l.addEventListener(\"DOMContentLoaded\",function(){for(var e,t,s=l.querySelectorAll(\"iframe.wp-embedded-content\"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute(\"data-secret\"))||(t=Math.random().toString(36).substring(2,12),e.src+=\"#?secret=\"+t,e.setAttribute(\"data-secret\",t)),e.contentWindow.postMessage({message:\"ready\",secret:t},\"*\")},!1)))}(window,document);\n\/\/# sourceURL=https:\/\/www.bestspinehospitals.com\/blog\/wp-includes\/js\/wp-embed.min.js\n\/* ]]> *\/\n<\/script>\n","description":"The S3 segment most commonly refers to the third sacral segment in the lower spine (the sacrum). Clinicians also use it to describe the S3 nerve root and related sensory and motor function in the pelvis and perineum. It is a key anatomical reference in spine, pelvic floor, and certain bladder and bowel evaluations. You may see it mentioned in imaging reports, neurological exams, or procedure planning around the sacrum."}