- Original research article
- Open Access
North American survey and systematic review on caudal Septoplasty
Journal of Otolaryngology - Head & Neck Surgery volume 49, Article number: 38 (2020)
Surgical correction of caudal septal deviation is a technically challenging step of functional rhinoplasty. Multiple surgical techniques have been described in the literature but comparing the efficacy of each in relieving obstruction presents a challenge. Outcome measures are necessary to adequately compare techniques. This study aims to describe the current caudal septoplasty techniques of Otolaryngologists and Facial plastic and reconstructive surgeons (FPRS), as well as their use of outcome measures, and to compare these practices with surgical trends described in the literature.
An online survey was sent to three Otolaryngology and FPRS associations in Canada and the United States. A systematic review was conducted on SCOPUS and PubMed to classify the caudal septoplasty techniques described in the literature and the outcome measurement tools used.
Our survey identified that caudal septoplasty is more commonly performed by surgeons with an FPRS training background. The most common techniques were the swinging door technique (69.5%), extracorporeal septoplasy (46.7%), cartilage scoring (45.3%), and splinting with bone (25.4%). Despite using a vast array of surgical techniques, North American physicians rarely rely on standardized outcome assessment tools. Patient reported outcome measures (PROMs) are used almost twice as frequently in the literature as they are by surgeons in their clinical practice.
We recommend that future studies of caudal septoplasty include an assessment of both form and function using a validated PROM such as the Standardized Cosmesis and Health Nasal Outcomes Survey.
Caudal septal deviation is defined as deviation of the anterior most portion of the nasal septum. (Fig. 1) In addition to functional symptoms, caudal septal deviation can cause significant cosmetic deformities, including lobule deviation, tip ptosis, and deformity of the middle one-third of the nose [1, 2]. Caudal septal deviation differs from traditional septal deviation in that it involves a portion of the septum that contributes to the nasal valve area and the support of the nasal tip .
Consequently, surgical correction of caudal septal deviation is technically challenging and classifies as a functional rhinoplasty procedure because of its impact on the external nasal valve. Removal of the deviated caudal nasal septum results in loss of tip support, shortening of the columella and complications ranging from tip ptosis  to severe valve collapse. Inadequate surgical correction can cause persistence of nasal obstruction postoperatively .
Multiple different surgical techniques have been described in the literature but comparing the efficacy of each in relieving functional symptoms presents a challenge. Objective parameters measured by acoustic rhinometry (AR) and rhinomanometry (RM) do not correlate with patients’ perceived sensation of obstruction . Visual analog scales (VAS) and patient-reported outcome measures (PROMs) were conceived to collect standardized assessments of each patient’s subjective symptoms and overall satisfaction in the preoperative and postoperative periods . The Standardized Cosmesis and Health Nasal Outcomes Survey (SCHNOS) is a PROM that meets international methodological guidelines that has been validated specifically for the evaluation of cosmetic and functional outcomes after septorhinoplasty. The use of PROMs, VAS, AR and RM to report functional outcomes after caudal septoplasty varies widely in the literature.
The primary objective of this study was to describe the current caudal septoplasty techniques of otolaryngologists and facial plastic surgeons, as well as their use of outcome measures.
The secondary objective was to compare these practices with the surgical techniques and outcome measures described in the literature, by conducting a systematic review.
Scientific and ethics committee approval to undergo this project was obtained at our institution (Hopital Maisonneuve Rosemont), followed by approval from each surveyed medical association. An English or French, 9-question survey requiring on average 1,5 min to complete was sent via email. The survey was designed using web survey development cloud base SurveyMonkey (www.surveymonkey.com, SurveyMonkey, Palo Alto, CA). The survey was distributed via email to members of the following associations; the Association of Otolaryngology-Head and Neck Surgery of Quebec (ORLQC), the Canadian Society of Otolaryngology–Head and Neck Surgery (CSOHNS) and the American Association of Facial Plastic and Reconstructive Surgery (AAFPRS).
Each association received a cover letter describing the purpose of the survey and containing a link to the survey. Participants did not receive any compensation. The survey links were kept active for 3 months after the last email was sent out to the members by their association. The respondents were prevented from responding more than once by the online platform SurveyMonkey.
The survey included questions regarding demographic characteristics such as current practice location, country in which residency was completed, completion of a fellowship in facial plastic and reconstructive surgery, exposition to extracorporeal septoplasty during training, type of practice (academic, community, other), years of practice and number of patients with caudal septal deviation seen per month. Respondents were then asked to state how they evaluate nasal obstruction (history, physical examination, standardized questionnaire, airflow measurements, other) and the technique they use to treat caudal septal deviation (scoring, swinging door, splinting with bone, extracorporeal septoplasty, other). Respondents were allowed to select multiple answers to this question, since many techniques include combinations.
We then conducted a systematic literature review following the PRISMA statement guidelines [6, 7]. The two databases used were PubMed and SCOPUS. The keywords used were [“caudal deviation” OR “caudal septal deviation” OR “anterior deviation” OR “anterior septal deviation”]. No limitations were added. All studies published in French or English between 1954 and 2018 were included.
All included studies met the following criteria: articles including a description of a surgical technique (either septoplasty or septorhinoplasty) aiming to correct caudal septal deviation; procedures addressing primarily functional symptoms; articles providing enough detail to understand the steps of the procedure and to differentiate it from other techniques; articles detailing how functional outcomes were evaluated; articles stating the number of patients on which the outcomes were measured, and stating the number of controls, if controls were used.
The exclusion criteria were the following: articles not in French or English, procedures addressing non-caudal nasal septal deviations; articles evaluating only or primarily cosmetic outcomes. Literature reviews, correspondences, descriptions of techniques without any outcome evaluation, and book chapters or sections were excluded from this review.
After identifying records through database researching and removing duplicates, abstracts were screened for eligibility by two independent readers and classified as “included”, “excluded” or “neither excluded or included”. A tertiary, independent reader further classified the “neither excluded or included” abstracts, deciding whether they would be included or not. Included full-text articles were read and analyzed, and further articles were excluded. A qualitative synthesis is presented in this article. Figure 2 is a flow diagram representing the number of records identified, included and excluded, and reason for exclusion when applicable.
Table 1 regroups the demographic characteristics of all respondents. Out of 413 respondents, 87 were from ORLQC, 108 were from CSOHNS and 218 were from AAFPRS. This represents an estimated response rate of 36.9, 19.5 and 9%, respectively. The vast majority of respondents performed caudal septoplasty (n = 3277; 91.3%), and half (51.3%) of the respondents completed a facial plastic and reconstructive surgery (FPRS) fellowship. All respondents who completed an FPRS fellowship performed caudal septoplasty (Fig. 3). Respondents came either from academic (32%), community (54.2%) or other practice settings (13.8%). A high proportion of respondents were in the beginning of their career (< 10 years; 43.3%), but the proportion of respondents who performed septoplasty was similar among all practitioners with less than 30 years of practice (1st-10th: 91.6%; 11th–20th year: 94.2%; 21st-30th: 93.8%).
Of the respondents who saw the least caudal septal deviations in clinic (0–2 cases/month), 21.3% did not perform caudal septoplasty. Among respondents seeing 3 to 15 cases per month, less than 5% did not perform caudal septoplasty. (Fig. 4).
A vast majority of respondents use history and physical examination (96.9, and 99%, respectively) to evaluate the degree of nasal obstruction. Only 26.6% of respondents use PROMs in their clinical practice. (Fig. 5).
The most popular surgical techniques were the swinging door technique (69.5%), extracorporeal septoplasty (46.7%), cartilage scoring (45.3%), and splinting with bone (25.4%). Other techniques were rarely employed (Fig. 6).
Surgeons who have completed an FPRS fellowship perform more caudal septoplasty than their counterparts (82% vs 100%, p < 0.001). Surgeons with an FPRS background utilize more often the swinging door (p < 0.001), splinting (p < 0.001), extracorporeal septoplasty (p < 0.001), and PDS plates (p < 0.001) than their counterparts. There was no difference in suture technique use between surgeons with or without an FPRS training background.
The initial database search yielded a selection of 235 records, of which 26 were included in the qualitative synthesis after application of exclusion criteria (Fig. 2). These studies were published between 1994 and 2017. The number of patients included varied from 2  to 703  with a total of n = 1880 cases (Table 2). Only four articles [12, 19, 20, 22] (15%) included a control group.
Studies were classified by the surgical technique described. Since some records described a combination or sequence of surgical techniques, these records have been included simultaneously in multiple categories, as for the survey. To prevent classification errors, categories were precisely described before classifying each record, as follows: techniques that moved the lowermost part of the caudal septum to the midline or contralateral to the anterior nasal spine were categorized as a “swinging door technique”. The “extracorporeal septoplasty” technique was defined as the removal of deviated cartilage with or without bony septum, followed by extracorporeal remodeling and subsequent reimplantation. The “splinting or grafting technique” includes cartilage splinting, and various bony or cartilaginous grafts used to stabilize the nasal septum. Cartilage grafts consisted either of posterior septal, quadrangular, costal or conchal cartilage. Bone grafts all consisted of bony batten grafts of various origins. “Suturing” regrouped all techniques consisting of permanent trans-cartilaginous retention sutures. “Scoring” techniques comprised all techniques where partial thickness incisions were made in the cartilage to overcome its natural bending forces.
Included records were also classified according to primary surgical outcome. Outcome was only functional for 15 records [9,10,11,12,13,14,15,16,17,18, 20,21,22, 29, 30] (58%), while 11 [3, 8, 19, 23,24,25,26,27,28, 31, 32] (42%) additionally evaluated esthetical outcomes.
As cited in 50% of the records, physical examination is the most popular way to evaluate post-operative relief of nasal obstruction. History taking was not explicitly cited in many articles, but the use of endoscopy (26.9%), and airflow measure such as RM (7.7%) or AR (23.1%) were described (Fig. 7).
Administration of questionnaires was common (42.3%), and the NOSE (30.8%) was the most commonly used. The average results of the 8 studies [15, 19,20,21, 24, 26, 30, 33] that used the NOSE questionnaire were compared. The average calculated NOSE score was 19.3 post-operatively compared to 72.0 preoperatively for all techniques combined (Table 3). Aside from the NOSE, other PROMs such as the rhinoplasty outcome evaluation (ROE) [19, 31] (7.7%), and the 16-item Sino-Nasal Outcome test (SNOT-16, 27) (3.8%) were also reported. Custom questionnaires (42.3%) were often used. Out of the 11 records using custom questionnaires [3, 9, 10, 12,13,14, 18, 21,22,23, 25], only 3 [13, 21, 25] disclosed the questions and rating methods fully.
As previously mentioned, 11 [3, 8, 19, 23,24,25,26,27,28, 31, 32] (42.3%) records evaluated cosmetic outcomes in addition to functional outcomes. Out of all the records, 53.8% reported a post-operative photographic analysis of the nose. Of these, 21.4% [8, 11, 28] used photography as the only tool to quantify post-operative improvement, for both functional and esthetic outcomes. None used the SCHNOS.
To our knowledge, this is the first survey in the literature to evaluate the use of caudal septoplasty techniques and outcome measurement tools. The aim of this descriptive study was to compare the different surgical techniques described in the literature to those used by surgeons today, especially with regards to the use of patient-reported outcome measures. As for any descriptive study, the objective is to portray current surgical trends rather than to draw conclusions regarding the efficacy of one technique over others.
Classifying caudal septoplasty techniques presents a challenge, due to the vast spectrum of minor surgical variations described in the literature to this day. As shown in Table 2, of the 26 records included in this systematic literature survey, only two [9, 18] could not be likened to one of the five most commonly used techniques. Other ones were variants of existing techniques. Although this regrouping relies on the reviewer’s comprehension, which inevitably induces a bias, comparisons can be made. Figure 6 highlights that swinging door is more popular amongst survey respondents, whereas that grafting and splinting techniques were described more often in the literature. This could be attributable to a publication bias, since surgeons describing their techniques are more likely to be experts in their field, who rely on more complex surgical techniques in secondary or tertiary reference centers.
Comparing the literature to survey answers
A dual rationale underlies the comparison of survey answers and literature review results. First, it highlights a disparity between the techniques commonly being used by North-American otolaryngologists and facial plastic surgeons compared to what the literature depicts, which is presumably what is being done by experts in the field. Essentially, a large toolbox exists, but surgeons in practice - 54% of which were community-based - may be focusing on mainly one technique, (swinging door, see Fig. 6). Why are surgeons preconizing technique when so many have been described? Reliable outcome data could allow the otolaryngologist or facial plastic surgeon to make an informed clinical choice. This leads to the second purpose of the comparison. It shines light on the fact that valid standardized tools such as PROMs aren’t systematically used, either in practice nor in the literature. No one would do a stapedotomy without a preoperative audiogram, but surgeons operate on the deviated caudal septum without using standardised outcome assessment tools, both in clinical practice and in the literature.
Comparing surgical outcomes
Measuring performance in rhinoplasty can be a challenge, although previously published guidelines  recommend the utilization of PROMs at least 1 year after surgery. In the present systematic review, only 8 records used the NOSE score to compare preoperative and post-operative obstruction. Because of the relatively low number of patients and high heterogeneity between records, no valid meta-analysis has been possible.
Surprisingly, PROMs are not very prevalent in routine clinical practice, possibly due to logistic reasons. Moreover, the present study highlights that PROMs are used almost twice as frequently in the literature as they are by surgeons in their clinical practice (Fig. 5).
In October 2018, the American Society of Plastic Surgeons, in a joint effort with the AAFPRS and the AAO-HNS released a set of performance measures for rhinoplasty and recommended that the SCHNOS questionnaire be administered at least preoperatively and 1 year postoperatively to rhinoplasty patients as a performance measure .
Comparing preoperative and postoperative PROM scores between one technique and another could provide with a simple surgical efficacy ranking. However, functional rhinoplasty is an operation where both cosmesis and function must be measured. In our systematic review, no study evaluated both form and function after caudal septoplasty using PROMs, rendering the evaluation of performance difficult. We recommend that future studies evaluating functional rhinoplasty techniques include both a pre- and postoperative evaluation of both form and function using a PROM that can evaluate both, such as the SCHNOS.
In the present study, we excluded records that did not report surgical outcomes. This criterion yielded a selection of mostly recent articles, published after 2010. Many older records were excluded for a lack of outcome evaluation. In the present literature review, custom questionnaires were used more commonly then PROMs.
In conclusion, our survey identified that caudal septoplasty is more commonly performed by surgeons with an FPRS training background. The most common techniques were the swinging door technique (69.5%), extracorporeal septoplasy (46.7%), cartilage scoring (45.3%), and splinting with bone (25.4%). Our systematic review identified no studies that evaluated both functional and cosmetic outcomes of any technique with validated outcome measurement tools. We recommend that future studies of caudal septoplasty include an assessment of both form and function using a validated PROM such as the SCHNOS, as recommended by the American Society of Plastic Surgeons.
Availability of data and materials
The datasets used and analyzed during the current study are available from the corresponding author on reasonable request.
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The authors want to thank Jocelyne Fortin (ORLQC); Kim Iverson and Donna Humphrey (CSOHNS); Leigh McGuire and Fatima Porter El Mitchell (AAFPRS) for their collaboration in distributing this survey to the members of their associations.
The authors received no funding for the study and collection, analysis, and interpretation of data nor for writing the manuscript.
Ethics approval and consent to participate
This study was performed in accordance to the Declaration of Helsinki and was approved by an institutional review board (IRB): the ethical committee of the Research Center at CIUSSS de l’Est-de-l’Île-de-Montréal, Installation Maisonneuve-Rosemont, which a teaching hospital affiliated with our institution. The project number is 2018–1237.
Consent for publication
Consent for publication was obtained with each participant, at the time of answering the survey. This was approved by the IRB.
The authors declare that they have no competing interests.
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Cite this article
Voizard, B., Theriault, M., Lazizi, S. et al. North American survey and systematic review on caudal Septoplasty. J of Otolaryngol - Head & Neck Surg 49, 38 (2020). https://doi.org/10.1186/s40463-020-00435-4
- Nasal obstruction
- Patient reported outcome measures
- Caudal septal deviation
- Anterior septal deviation