Name: endoscopic septoplasty with limited two-line resection: minimally invasive surgery for septal deviation
Uploaded: 2018-06-20T13:30:00
Description: Watch this Scientific Journal Video about Endoscopic Septoplasty with Limited Two-line Resection: Minimally Invasive Surgery for Septal Deviation at JoVE.com

This work was funded by the National Nature Science Foundation of China for Young Scholars (No. 81300810), the Shanghai Young Doctor Training Program (No. 20141057), the Shanghai Natural Science Foundation (No. 16ZR1405100), and the Shanghai Municipal Commission of Health and Family Planning (No. 201740187). We would like to thank LetPub (www.letpub.com) for providing linguistic assistance during the preparation of this manuscript.

This procedure, which involved human subjects, was approved by the Institutional Review Board of the Eye and ENT Hospital, Fudan University, China. All the enrolled patients provided written informed consent.
1. Preparation for Surgery
<ol>
	<li>Before surgery, examine the patient&#39;s nasal cavity with anterior rhinoscopy, endoscopy, and computed tomography (CT) scans to confirm and locate the deviations and to identify the indications15.</li>
	<li>Ask the patient t...

<ol>
	<li>Chung, B. J., Batra, P. S., Citardi, M. J., Lanza, D. C. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Endoscopic+septoplasty:+revisitation+of+the+technique,+indications,+and+outcomes.">Endoscopic septoplasty: revisitation of the technique, indications, and outcomes.</a> The American Journal of Rhinology. 21 (3), 307-311 (2007).</li><li>Hwang, P. H., McLaughlin, R. B., Lanza, D. C., Kennedy, D. W. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Endoscopic+septoplasty:+indications,+technique,+and+results.">Endoscopic septoplasty: indications, technique, and results.</a> Otolaryngology-Head and Neck Surgery. 120 (5), 678-682 (1999).</li><li>Fettman, N., Sanford, T., Sindwani, R. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Surgical+management+of+the+deviated+septum:+techniques+in+septoplasty.">Surgical management of the deviated septum: techniques in septoplasty.</a> Otolaryngologic Clinics of North America. 42 (2), 241-252 (2009).</li><li>Killian, G. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=The+submucous+window+resection+of+the+nasal+septum.">The submucous window resection of the nasal septum.</a> Annals of Otology, Rhinology &amp; Laryngology. 14, 363-393 (1905).</li><li>Freer, O. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=The+correction+of+deflections+of+the+nasal+septum+with+a+minimum+of+traumatism.">The correction of deflections of the nasal septum with a minimum of traumatism.</a> The Journal of The American Medical Association. 38, 636-642 (1902).</li><li>Aaronson, N. L., Vining, E. M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Correction+of+the+deviated+septum:+from+ancient+Egypt+to+the+endoscopic+era.">Correction of the deviated septum: from ancient Egypt to the endoscopic era.</a> International Forum of Allergy &amp; Rhinology. 4 (11), 931-936 (2014).</li><li>Bloom, J. D., Kaplan, S. E., Bleier, B. S., Goldstein, S. A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Septoplasty+complications:+avoidance+and+management.">Septoplasty complications: avoidance and management.</a> Otolaryngologic Clinics of North America. 42 (3), 463-481 (2009).</li><li>Rettinger, G., Kirsche, H. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Complications+in+septoplasty.">Complications in septoplasty.</a> Facial Plastic Surgery. 22 (4), 289-297 (2006).</li><li>Cottle, M. H., Loring, R. M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Newer+concepts+of+septum+surgery;+present+status.">Newer concepts of septum surgery; present status.</a> Eye, Ear, Nose &amp; Throat Monthly. 27 (9), 403-406 (1948).</li><li>Gibson, T., Davis, W. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=The+distortion+of+autogenous+cartilage+grafts:+Its+causes+and+prevention.">The distortion of autogenous cartilage grafts: Its causes and prevention.</a> British Journal of Plastic Surgery. 10, 257-274 (1958).</li><li>Kenedi, R. M., Gibson, T., Abrahams, M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Mechanical+characteristics+of+skin+and+cartilage.">Mechanical characteristics of skin and cartilage.</a> Human Factors. 5, 525-529 (1963).</li><li>Stenstroem, S. J. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=A+&amp;#34;natural&amp;#34;+technique+for+correction+of+congenitally+prominent+ears.">A &amp;#34;natural&amp;#34; technique for correction of congenitally prominent ears.</a> Plastic and Reconstructive Surgery. 32, 509-518 (1963).</li><li>Fry, H. J. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Interlocked+stresses+in+human+nasal+septal+cartilage.">Interlocked stresses in human nasal septal cartilage.</a> British Journal of Plastic Surgery. 19 (3), 276-278 (1966).</li><li>Wang, T., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=A+modified+septoplasty+with+three+high+tension+lines+resection.">A modified septoplasty with three high tension lines resection.</a> Acta Oto-Laryngologica. 130 (5), 593-599 (2010).</li><li>Trimarchi, M., Bellini, C., Toma, S., Bussi, M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Back-and-forth+endoscopic+septoplasty:+analysis+of+the+technique+and+outcomes.">Back-and-forth endoscopic septoplasty: analysis of the technique and outcomes.</a> International Forum of Allergy &amp; Rhinology. 2 (1), 40-44 (2012).</li><li>Kilicaslan, A., Acar, G. O., Tekin, M., Ozdamar, O. I. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Assessment+the+long-term+effects+of+septoplasty+surgery+on+olfactory+function.">Assessment the long-term effects of septoplasty surgery on olfactory function.</a> Acta Oto-Laryngologica. 136 (10), 1079-1084 (2016).</li><li>Meeuwis, J., Verwoerd-Verhoef, H. L., Verwoerd, C. D. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Normal+and+abnormal+nasal+growth+after+partial+submucous+resection+of+the+cartilaginous+septum.">Normal and abnormal nasal growth after partial submucous resection of the cartilaginous septum.</a> Acta Oto-Laryngologica. 113 (3), 379-382 (1993).</li><li>Lopatin, A. S. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Do+laws+of+biomechanics+work+in+reconstruction+of+the+cartilaginous+nasal+septum.">Do laws of biomechanics work in reconstruction of the cartilaginous nasal septum.</a> European Archives of Oto-Rhino-Laryngology. 253 (4-5), 309-312 (1996).</li><li>D'Ascanio, L., Manzini, M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Quick+septoplasty:+surgical+technique+and+learning+curve.">Quick septoplasty: surgical technique and learning curve.</a> Aesthetic Plastic Surgery. 33 (6), 814-818 (2009).</li></ol>

The 2LoRs procedure is based on embryological and anatomic knowledge of deviated nasal septa. The nasal septum consists of three different components: the anterior membrane, cartilage in the middle, and posterior and inferior bone. During the development of the nasal septum, the different components ossify in different time sequences. It is commonly held that the bone finishes its extension while the cartilage still grows. Therefore, stresses accumulate on the margins of the cartilage adjacent to the osseous septum, resu...

Endoscopic septoplasty is a commonly performed surgical procedure in otolaryngology to treat nasal airway obstruction caused by nasal septal deviation1. The purpose of the septoplasty with the indication of nasal airway obstruction is to provide a functional improvement in nasal airway patency, and the principle is to correct the septal deviation with a minimal surgical invasion2.
The beginning of septoplasty, a procedure that is still used today, traces back to the technique that Freer and Killian published in the early 20th century, which was called submucous resection (SMR)3. SMR is characterized by its direct removal of a nasal cartilaginous deviation in a subperichondrial plane, leaving an L-shaped strut to structurally support the appearance of the nose4,5. SMR showed advantages over the previous techniques at its time, so it gradually gained acceptance. In the 1990s, endoscopy was applied to septoplasty1. The illumination and visualization of the surgical field were highly improved, and the resection could be performed directly and precisely6. Thereafter, the indications of SMR were extended, and various septoplasty techniques were developed. While these techniques may be diversified in incision, flap elevation, excision, suture, or packing, the essence of direct removal has not changed. Therefore, once the cartilage was significantly resected, complications such as large septal perforations or a saddle nose deformity would occur7,8.
As Cottle and Loring suggested in 1948, the resection of deviated cartilage should be conservative9. Different from the direct removal of cartilaginous deviation, the biomechanics of cartilage as applied to septoplasty require the utilization of the inherent elastic property of cartilage to straighten the cartilaginous deviation by a limited surgical intervention, such as partial incisions (e.g., scratches or thin slices) and full incisions (e.g., full cuts or wedges). In 1958, Gibson and Davis first reported that cartilage has an internal self-locked stress system as a result of its growth pattern10. Partial incisions on the concave side would release the stress, thereby decreasing the bowing of the cartilage, while the incisions on the convex side would increase the bowing. In 1963, Kenedi, Gibson, and Abrahams further demonstrated the self-locked stress system through a series of studies on mapping the force distribution in a cross-section of rib cartilage11. In the same year, Stenstrom verified the effect of partial incisions on the antihelix12. A few years later, Fry published results on the human nasal septal cartilage that were consistent13. In other words, the biomechanics of cartilage can be used to alter the morphology of cartilage by releasing the forces within the cartilage. Based on this theoretical foundation, a surgical procedure that takes advantage of the biomechanical features of cartilage was developed14.
Combining previous surgical procedures with the embryologic and anatomic knowledge of the nasal septum, here, a modified endoscopic septoplasty procedure with the technique of limited two-line resection (2LoRs) at the posterior and inferior junction of the cartilaginous and bony septum (Figure 1) is presented in detail. This procedure is recommended to correct deviated nasal septa when external nasal deformities are absent, to improve nasal patency or to improve access to the middle meatus or to the axillary region of the middle turbinate as a preoperative operation. This procedure may also be used in children to correct septal deviation because of its minimally invasive approach.

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	<tbody>
		<tr height="40">
			<td height="40" style="height:40px;width:227px;">Nasal Endoscopy (0o)</td>
			<td style="width:221px;">Karl Storz-Endoskope</td>
			<td style="width:127px;">7230 AA</td>
			<td style="width:180px;"></td>
		</tr>
		<tr height="40">
			<td height="40" style="height:40px;width:227px;">Tetracaine</td>
			<td style="width:221px;">Eye &#38; ENT Hospital of Fudan University</td>
			<td style="width:127px;">180130</td>
			<td></td>
		</tr>
		<tr height="40">
			<td height="40" style="height:40px;width:227px;">Epinephrine Hydrochloride Injection</td>
			<td style="width:221px;">Shanghai Harvest Pharmaceutical Co., Ltd</td>
			<td style="width:127px;">10170405</td>
			<td></td>
		</tr>
		<tr height="40">
			<td height="40" style="height:40px;width:227px;">Number 15 blade</td>
			<td style="width:221px;">Shanghai Pudong Jinhuan Medical Products Co., Ltd</td>
			<td style="width:127px;">35T1205</td>
			<td></td>
		</tr>
		<tr height="40">
			<td height="40" style="height:40px;width:227px;">Suction Elevator</td>
			<td style="width:221px;">Zhejiang Tian Song Medical Products Co., Ltd</td>
			<td style="width:127px;">B2117.1</td>
			<td>Width: 4 mm</td>
		</tr>
		<tr height="40">
			<td height="40" style="height:40px;width:227px;">Electrocoagulation</td>
			<td style="width:221px;">Shanghai Hutong Electronics. Co.,Ltd</td>
			<td style="width:127px;">GD350-B5</td>
			<td></td>
		</tr>
		<tr height="40">
			<td height="40" style="height:40px;width:227px;">4-0 Brided Absorbable Suture</td>
			<td style="width:221px;">Covidien Healthcare</td>
			<td style="width:127px;">SL-691</td>
			<td></td>
		</tr>
		<tr height="40">
			<td height="40" style="height:40px;width:227px;">Rongeur forcep</td>
			<td style="width:221px;">Zhejiang Tian Song Medical Products Co., Ltd</td>
			<td style="width:127px;">B2300.3</td>
			<td></td>
		</tr>
		<tr height="40">
			<td height="40" style="height:40px;width:227px;">Nasopore</td>
			<td style="width:221px;">Nasopore, Stryker, USA</td>
			<td style="width:127px;"></td>
			<td>Lengh: 8 cm</td>
		</tr>
		<tr height="40">
			<td height="40" style="height:40px;width:227px;">Gauze</td>
			<td style="width:221px;">Ningbo Shenyuan Medical Material Co., Ltd</td>
			<td style="width:127px;"></td>
			<td>6 cm x 60 cm</td>
		</tr>
		<tr height="40">
			<td height="40" style="height:40px;width:227px;">5mm Elevator</td>
			<td style="width:221px;">Zhejiang Tian Song Medical Products Co., Ltd</td>
			<td style="width:127px;">B2067</td>
			<td>Width: 5 mm</td>
		</tr>
		<tr height="40">
			<td height="40" style="height:40px;width:227px;">2mm Elevator</td>
			<td style="width:221px;">Shanghai Medical Instruments (Group) Ltd., Corp. Surgical Instruments Factory</td>
			<td style="width:127px;">HBL020</td>
			<td>Width: 2 mm</td>
		</tr>
	</tbody>
</table>

endoscopic septoplasty with limited two-line resection: minimally invasive surgery for septal deviation

Endoscopic septoplasty is a surgical procedure in otolaryngology that is commonly performed to treat nasal airway obstruction caused by nasal septal deviation. It has a long history with multiple variations. In this article, a modified endoscopic septoplasty procedure using the limited two-line resection (2LoRs) technique at the posterior and inferior junction of the cartilaginous and bony septum is presented based on embryologic and anatomic knowledge of the nasal septum and the biomechanics of cartilaginous behavior. With this procedure, the quadrangular cartilage can be preserved as much as possible, which is helpful in retaining the supporting framework and rigidness of the septum. 2LoRs has been proven effective and sound for the correction of nasal septal deviation with rare complications. This modified procedure can be applied to correct the deviated nasal septum in the absence of any external nasal deformity to improve nasal patency or to improve access to the middle meatus or to the axillary region of the middle turbinate. It may also be used to expand the indications of septoplasty to children and adolescents because of its minimally invasive approach.

Adult patients (&#62;18 years of age) with nasal septal deviation were included in this study. Patients with nasal septal deviation accompanied by chronic rhinosinusitis, sinonasal tumors, external nose deformities, and those with a previous surgical history of septoplasty were excluded. Patients with a straight dorsum but who had caudal cartilage dislocated off the greater alar which had protruded into one of the nasal vestibules were excluded as well.
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Watch this Scientific Journal Video about Endoscopic Septoplasty with Limited Two-line Resection: Minimally Invasive Surgery for Septal Deviation at JoVE.com

Endoscopic Septoplasty with Limited Two-line Resection: Minimally Invasive Surgery for Septal Deviation

Endoscopic septoplasty is a time-honored surgical procedure with multiple variations. This paper focuses on a step-by-step surgical approach to perform a modified septoplasty procedure known as limited two-line resection. This surgical technique can be applied to correct a deviated nasal septum in the absence of an external nasal deformity.

Endoscopic septoplasty is a surgical procedure in otolaryngology that is commonly performed to treat nasal airway obstruction caused by nasal septal ...

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