Related Experiment Video
Updated: Feb 4, 2026
Endoscopic Cholesteatoma Surgery
Published on: January 19, 2022
Feasibility of Endoscopic Inspection of Pedicle Wall Integrity in a Live Surgery Model
Kristen Radcliff1, Harvey Smith2, Bobby Kalantar3
1Department of Orthopedic Surgery, Thomas Jefferson University, Rothman Institute, Egg Harbor, New Jersey.
Background:
Perforations of the pedicle wall during cannulation can occur with experienced surgeons. Direct endoscopic visualization has not been used to inspect pedicles previously due to bone bleeding obscuring the camera visualization. The hypothesis of this study was that endoscopic visualization of pedicle wall integrity was technically feasible and would enable identification of clinically significant pedicle breaches.
Methods:
A live porcine model was used. Eight lumbar pedicles were cannulated. Clinically significant breaches were created. An endoscope was introduced and was used to inspect the pedicles.
Results:
All lumbar pedicles were endoscopically visible at a systolic pressure of 100 mm Hg. Clinically relevant anatomic structures and iatrogenic pathology, such as medial, lateral, and anterior breaches, were identified. There were no untoward events resulting from endoscopic inspection of the pedicle endosteal canal.
Conclusions:
Endoscopic inspection of lumbar pedicles was safe and effective. The findings on endoscopic inspection corresponded with the ball-tip probe palpation techniques. Additional techniques, such as selection between 2 tracts, was possible with the endoscopic technique.
Insights
Endoscopic visualization safely inspects lumbar pedicle integrity, identifying breaches missed by traditional methods. This technique enhances surgical safety and accuracy in spinal procedures.
Area of Science:
- Spinal surgery
- Surgical techniques
- Minimally invasive procedures
Background:
- Pedicle wall perforations are a risk during spinal surgery, even for experienced surgeons.
- Previous methods lacked direct visualization due to bleeding, hindering pedicle inspection.
- This study investigated endoscopic visualization for pedicle integrity.
Purpose of the Study:
- To assess the technical feasibility of endoscopic visualization for inspecting lumbar pedicle integrity.
- To determine if endoscopic visualization can identify clinically significant pedicle breaches.
- To evaluate the safety and effectiveness of this novel technique.
Main Methods:
- A live porcine model was utilized for the study.
- Eight lumbar pedicles were cannulated and intentionally breached.
- An endoscope was introduced to inspect the pedicles and identify breaches.
Main Results:
- Endoscopic visualization was successful in all lumbar pedicles at a systolic pressure of 100 mm Hg.
- The technique identified clinically relevant structures and iatrogenic pathologies, including medial, lateral, and anterior breaches.
- No adverse events occurred during the endoscopic inspection of the pedicle endosteal canal.
Conclusions:
- Endoscopic inspection of lumbar pedicles is a safe and effective method.
- Findings from endoscopic inspection correlated with traditional palpation techniques.
- Endoscopy offers potential advantages, such as improved tract selection during surgery.
Related Concept Videos
01:29Assessment of the Cardiovascular System II: Inspection
Head and Neck
02:43Plant Cell Wall
01:25Assessment of the Abdomen I: Inspection and Auscultation
The abdominal examination is a cornerstone of clinical medicine, serving as a critical tool in diagnosing various gastrointestinal (GI) diseases. It involves a systematic approach that includes inspection and auscultation, each with distinct yet complementary roles in assessing the abdomen. This article will delve into these two primary methods healthcare professionals use to examine the abdomen.
Inspection of the Abdomen
The first step in any abdominal examination is inspection....
01:27Growth Models with Integration: Problem Solving
01:26Integration by Parts: Indefinite Integrals
01:23Integration by Parts: Definite Integrals