Background: In this retrospective study, we aimed to describe the surgical procedure for vaginally assisted laparoscopic lateral suspension (VALLS) and to compare its anatomical and clinical outcomes with laparoscopic lateral suspension (LLS). Methods: The surgical outcomes of 26 women with advanced-stage pelvic organ prolapse (POP) undergoing VALLS and 35 women with advanced-stage POP undergoing LLS were retrospectively analysed and compared. The surgical outcomes were documented according to the International Urogynecological Association guidelines. Complications were evaluated according to the Clavien-Dindo classification and classified using the joint project of the International Continence Society and the International Urogynecological Association Prosthesis/Graft Complication Classification System. Results: The results showed significant improvement in all POP Quantification measurements in both the VALLS and LLS groups, with overall objective cure rates of 88.4% and 80%, respectively (96.1% and 91.4%, respectively, for the apical compartment; 96.1% and 85.7%, respectively, for the anterior compartment). The median operation times for VALLS and LLS were 77 [66–90] minutes and 99 [82–125] minutes, respectively (p = 0.001). A significant improvement in POP symptoms was observed in both groups. Occult stress urinary incontinence (SUI) was detected in two (7.6%) VALLS patients, and de novo SUI developed in four (15.3%) VALLS patients post-operatively. Anterior compartment defects were detected in one VALLS and five LLS patients. Mesh erosion was found in one patient in each group. Discussion: VALLS appears to be an effective and reliable surgical method for patients with advanced-stage POP and can offer advantages in terms of operation time and POP recurrence rates.
Pelvic organ prolapse (POP) is the bulging of the uterus, anterior or posterior vaginal wall, or vaginal vault to a lower place or level [1]. The prevalence of POP in postmenopausal women is 3–6% according to symptoms and it may rise to 50% when based upon vaginal examination [2, 3]. A woman’s lifetime operation risk of surgery for POP is 12–19%. Moreover, 10–30% of women with POP require reoperation [4].
Various vaginal and abdominal surgical management methods using native tissue or mesh have been developed to treat POP. Following the notification of the U.S. Food and Drug Administration in 2011 and 2019 regarding POP repair with a vaginal mesh, trans-abdominal mesh operations have gained popularity [5, 6]. Sacrocolpopexy (SCP) is the mostly preferred technique for treating POP laparoscopically. However, SCP involves a long operative time and a steep learning curve. The procedure includes sacral area dissection, which can be extremely difficult, particularly in overweight women, and may result in major neurological, ureteral, or vascular injuries [7, 8].
A dissection at the level of the promontory/sacral area is not necessary in the laparoscopic lateral suspension (LLS) procedure established by Dubuisson et al. [9]. Moreover, the risk of major complications appears to be lower than that of SCP. LLS can be performed using a T-shaped synthetic mesh graft and may or may not be a uterus-sparing procedure [10]. Studies on LLS have documented more than 90% objective success rate in the anterior and apical compartments after one year [11, 12]. Thus, LLS may be an alternative surgical option to SCP for the management of apical compartment defects in women with POP [13, 14]. The most critical step of the LLS procedure is the mesh placement in the vesicovaginal space. The true vesicovaginal space should be reached by performing dissection of a full vaginal wall layer. The mesh should be placed flat without folding or overstretching, and fixation should be performed using the appropriate suture technique and material which requires advanced laparoscopic surgical skills [15].
The aim of this study was to describe the surgical steps of a vaginally assisted laparoscopic lateral suspension (VALLS) procedure which enables quick and effortless suturation for the management of women with severe POP and to evaluate its effectiveness and reliability. To that end, we compared the preoperative characteristics and postoperative outcomes of patients undergoing VALLS and LSS.
This was a retrospective study conducted in the Department of Obstetrics and Gynecology of the Faculty of Medicine of Muğla Sıtkı Koçman University, Turkey. The study was approved by the Clinical Investigations’ Ethics Committee of Mugla University, Turkey (no. 4/I; 17 February 2021). The study was conducted in accordance with the provisions of the Declaration of Helsinki. Written informed consent was obtained from all patients before undergoing surgery.
The study included a study group of patients with stage 3–4 POP undergoing VALLS and a control group of patients with stage 3–4 POP undergoing LLS between February 2013 and March 2020. Patients with previous hysterectomy, SCP, or POP surgery with a vaginal mesh, patients older than 65 years, patients with diabetes, and patients with smoking habits were excluded. Transvaginal ultrasonography was performed in all patients before the operation. In addition, cervicovaginal smear scanning was performed in all patients. Urodynamic evaluation was done for the patients with pre- and post-operative urinary incontinence symptoms. According to the inclusion and exclusion criteria, 26 patients were included in the VALLS group, and 35 patients were included in the LLS group. The patients’ demographic and clinical characteristics, prolapse-related symptoms, and operational information were obtained from the hospital’s database and patient files. The physical examination results, reoperation and erosion rates, lower urinary tract symptoms (LUTS), and complications were retrieved.
All surgeries were performed by a single surgeon (EA). The patients were re-evaluated after a minimum of 12 months post-operatively. The pre- and post-operative examinations included Pelvic Organ Prolapse Quantification (POP-Q) measurements and staging. The degree of prolapse in points Ba, Bp, and C was determined according to the simplified POP-Q [1]. Urogynaecological examinations were performed with the patients in a semi-recumbent lithotomy position. The POP grade was evaluated by performing the Valsalva manoeuvre and/or coughing. The surgical outcomes were recorded according to the International Urogynaecological Association (IUGA) guidelines [16]. Satisfactory anatomic objective cure was defined as POP-Q sites Ba, C and Bp being less than -1 during follow-up. Complications were evaluated according to the Clavien-Dindo classification and classified using the joint project of the International Continence Society and the International Urogynecological Association Prosthesis/Graft Complication Classification System [17, 18].
A T-shaped mesh with a rectangular part of 4
The middle part of the T-shaped mesh with the dimensions of 4
The vaginal vault was closed vaginally with an absorbable no.0 Vicryl
Rapide
The only difference of LLS from VALLS was the mesh fixation to the vesicovaginal space. At this step no. 2-0 Prolene® was sutured intracorporeally with laparoscopy. As in the VALLS procedure, lateral arms of the mesh not sutured abdominal fascia in LLS procedure.
Statistical analysis was performed using IBM SPSS Statistics version 20.0 (IBM,
Armonk, NY, USA) for Windows. The Shapiro-Wilk test was used to evaluate data
normality. The data were expressed as the median and range for continuous
variables, and binary variables were reported as numbers and percentages. For
inter-group comparisons, the independent samples T-test was used for
parameters with a normal distribution and the Mann Whitney U Test was
used for parameters with non-normal distribution. A Pearson’s chi-square test or
Fisher’s exact test was used for comparison of categorical data. A p
value of
The demographic and preoperative clinical characteristics of the patients in the VALLS and LLS groups are summarised in Table 1. The preoperative characteristics of the two groups were similar.
Demographic features | VALLS n = 26 | LLS n = 35 | p-value | |
Mean |
Mean |
|||
Median [Min–Max] | Median [Min–Max] | |||
Age (year) | 54.69 |
55.69 |
0.574* | |
BMI (kg/m |
0.311** | |||
Normal weight: 18.5–24.9 | 14 (53.8) | 19 (54.3) | ||
Overweight: 25–29.9 | 8 (30.8) | 6 (17.1) | ||
Obese: |
4 (15.4) | 10 (28.6) | ||
Parity, (n) | 3 [1–9] | 3 [2–7] | 0.511*** | |
Number of vaginal deliveries | 3 [1–8] | 3 [2–7] | 0.510*** | |
Menopausal condition, n (%) | 0.563** | |||
Premenopausal | 8 (30.8) | 8 (22.9) | ||
Postmenopausal | 18 (69.2) | 27 (77.1) | ||
Previous POP surgery, n | 0.356** | |||
Colporraphy anterior | 4 | 3 | ||
Colporraphy posterior | 2 | 3 | ||
Manchester Fotergill | 1 | 0 | ||
Previous stress urinary incontinence operations, n | 0.731**** | |||
Transobturator sub-urethral sling | 1 | 0 | ||
Tension free retropubic sling | 2 | 2 | ||
Kelly-Kennedy | 2 | 3 | ||
POP-Q | 0.570** | |||
Stage 3, n (%) | 6 (23.1) | 11 (31.4) | ||
Stage 4, n (%) | 20 (76.9) | 24 (68.6) | ||
Values expressed as the mean |
The post-operative anatomical outcomes of the patients in the two groups are summarised in Table 2.
POP-Q | VALLS n = 26 | LLS n = 35 | p-value |
Median [25%–75%] | Median [25%–75%] | ||
Preop Point Ba | 5 [3–6] | 4 [3–4] | 0.110 |
Preop Point C | 6 [4–6] | 6 [5–6] | 0.982 |
Preop Point Bp | 3 [2–3] | 2 [2–3] | 0.159 |
Postop Point Ba | –3 [(–3)–(–3)] | –2 [(–3)–(–2)] | 0.001* |
Postop Point C | –6 [(–7)–(–5)] | –5 [(–6)–(–3)] | 0.087 |
Postop Point Bp | –2 [(–4)–(–1)] | –2 [(–3)–(–1)] | 0.465 |
*Significant at |
The median post-operative follow-up duration was 22 (13–30) months in the VALLS
group and 32 (14–69) months in the LLS group (p = 0.09). A significant
improvement in POP-Q scores was observed in all compartments, with overall
objective cure rates of 88.4% in the VALLS group (96.1% in the apical
compartment and 96.1% in the anterior compartment) and 80% in the LLS group
(91.4% in the apical compartment and 85.7% in the anterior compartment). In our
study, we found the median operative time as 77 [66–90] minutes for VALLS, and
99 [82–125] minutes for LLS (p
The pre- and post-operative LUTS of the patients in the two groups are displayed in Table 3. In both groups, the most common symptoms were palpable vaginal swelling and consequent walking difficulty. Considerable improvement in vaginal bulging, urgency, incomplete voiding, urinary frequency, and difficulty in defecation was observed post-operatively. In the VALLS group, occult stress urinary incontinence (SUI) was observed in two (7.6%) women, and de novo SUI developed in 4 (15.3%) women post-operatively. In the VALLS group, the rate of sexually active women increased from 7 (26.9%) to 16 (61.5%).
Variables | Preop | Postop | ||||
Lower urinary tract symptoms | VALLS n (%) | LLS n (%) | p-value | VALLS n (%) | LLS n (%) | p-value |
Vaginal bulge | 26 (100) | 35 (100) | 0.955 | 1 (3.8) | 5 (14.3) | 0.179 |
Urinary urgency | 16 (61.5) | 24 (68.6) | 0.571 | 2 (7.7) | 10 (28.6) | 0.044* |
Incomplete voiding | 19 (73.1) | 27 (77.1) | 0.718 | 3 (11.5) | 7 (20) | 0.381 |
Urinary frequency | 22 (84.6) | 30 (85.7) | 0.906 | 18 (69.2) | 27 (77.1) | 0.491 |
SUI | 2 (7.7) | 3 (8.6) | 0.902 | 3 (11.5) | 4 (11.4) | 0.989 |
Constipation | 9 (34.6) | 11 (31.4) | 0.795 | 2 (7.7) | 2 (5.7) | 0.761 |
Fecal Incontinence | 4 (15.4) | 4 (11.4) | 0.653 | 2 (7.7) | 2 (5.7) | 0.760 |
Sexual activity | 7 (26.9) | 13 (37.1) | 0.404 | 16 (61.5) | 24 (68.6) | 0.571 |
Dyspareunia | 6 (23.1) | 7 (20) | 0.733 | 3 (11.5) | 3 (8.6) | 0.703 |
Pelvic pain | 14 (53.8) | 19 (54.2) | 0.973 | 10 (38.4) | 13 (42.8) | 0.917 |
*Significant at |
The post-operative complications in the two groups are shown in (Table 4). There were no major complications in either group (Clavien-Dindo grade 1). In one patient undergoing VALLS and two patients undergoing LLS, bladder perforation occurred during the dissection of the vesicovaginal space, and suturing was performed intraoperatively. No patient required a blood transfusion or underwent laparotomy.
Complications | VALLS n = 26 | LLS n = 35 | p-value | |
Recurrence, n (%) | 3 (11.5) | 7 (20) | 0.494* | |
Apical compartment | 1 (3.8) | 3 (8.5) | ||
Anterior compartment | 1 (3.8) | 5 (14.2) | ||
Posterior compartment | 1 (3.8) | 2 (5.6) | ||
Repeat surgery for recurrence, n (%) | 1 (3.8) | 7 (17.1) | 0.122* | |
Apical compartment | 0 | 2 (5.6) | ||
Anterior compartment | 1 (3.8) | 4 (11.2) | ||
Posterior compartment | 0 | 2 (5.6) | ||
Vaginal mesh erosion, n (%) | 1 (3.8) | 1 (2.8) | 0.675* | |
Repeat surgery (Retropubic sling) for SUI, n (%) | 4 (15.3) | 5 (14.2) | 0.591* | |
SUI, stress urinary incontinence. *Fisher’s exact test. |
In terms of recurrence, an anterior compartment defect was observed in one
patient in the VALLS group, and anterior colporrhaphy was performed. The patient
had a BMI of 27 kg/m
Grade 2 (
POP is a very common condition, especially in obese women. A restoration of the
disrupted anatomical relationships to normal anatomy contributes to a regression
of LUTS and may exert positive functional and psychological effects [19].
Although several vaginal, abdominal, and endoscopic surgical techniques have been
developed for the treatment of advanced POP, the optimal approach has yet to be
determined. This study aimed to describe the surgical steps of a VALLS procedure
for the treatment of women with POP stage
Laparoscopic suturing is not an easy task, especially in a deep and narrow area. Proper laparoscopic suturing of the mesh may account for a large part of the operation time. This procedure is particularly difficult and time-consuming in obese patients. Moreover, in advanced POP cases, suturing a large and long mesh without curling in the vesicovaginal area, including the pelvic fascia, may be possible only vaginally [22].
In our study, the median operation time was significantly shorter in the VALLS
group than the LLS group. In a previous study with uterine sparing LLS, the mean
operative time was reported as 189.26 (
In this study, a significant amelioration of vaginal bulging, urinary urgency, incomplete voiding, and urinary frequency was observed in patients undergoing VALLS. An occult SUI rate of 20% has been reported in patients with a POP diagnosis, which is even higher in patients with advanced-stage POP [24]. Veit-Rubin et al. [14] reported a SUI rate of 6.6% after LLS. In this current study, de novo SUI was observed in four (15.3%) patients who underwent VALLS, and in five (14.2%) patients who underwent LLS group.
In the past, hysterectomy was often performed in POP patients [25]. Later, surgical repair without hysterectomy was preferred due to the belief that hysterectomy reduced libido and impaired sexual function. Uterus-sparing LLS is associated with higher satisfaction rates, better short-term subjective outcomes, and lower post-operative constipation and de novo SUI rates [23]. Avoiding hysterectomy may also offer anatomical and functional benefits, such as maintaining strong rectovaginal and vesicovaginal fascia and cervix support [26]. It can also reduce morbidity and complication rates. In relatively young and sexually active women, avoiding hysterectomy and disruption of the vaginal axis may be associated with better sexual function post-operatively [27].
Major causes of mesh-related complications, such as erosion/extrusion, include aggressive dissection, intensive catheterisation, poor suture techniques that disrupt the nutrition of the mesh site, improper mesh placement, and shrinkage of the mesh at the suture stage [28]. Traditional SCP and LLS use non-absorbable or delayed absorbable and monofilament sutures for mesh fixation to prevent detachment from the vagina and reduce the risk of erosion [29]. The inclusion of the pelvic fascia in the mesh suture, which is quite easy in VALLS, can further reduce the risk of erosion. In patients in whom the mesh is stitched vaginally in laparoscopic POP surgery, possible contamination of the mesh with the vaginal flora may increase the risk of mesh erosion. In contrast, studies evaluating cases of vaginally assisted SCP have found no increased risk of contamination caused by vaginal suturing of the mesh [20, 22]. Follow-up period may influence the results of the mesh erosion rates [30]. Previous studies have reported variable time intervals to exposure, ranging from 6 weeks to 8 years [14, 30, 31]. In a study related mesh erosion after abdominal sacrocolpopexy median time to erosion detection was 16.8 months [30], another study report that mesh erosion median time to diagnosis after laparoscopic lateral suspension was 20 months [32]. In the current study the median post-operative follow-up duration was 22 (13–30) months in the VALLS group and 32 (14–69) months in the LLS group. Although there was no statistically significant difference between the two groups, the follow-up period of the patients who underwent LLS was longer.
In our study, mesh erosion in the anterior compartment was observed in only one (3.8%) of the 26 patients undergoing VALLS. This is slightly lower than previously reported rates. A systematic review found a 4% rate after abdominal surgery using mesh [30]. Another study reported a 4.3% rate after 417 LLS procedures [14].
One reason for recurrence after LLS is the separation of the mesh from the tissue due to a failure to suture tightly [33]. We encountered recurrence of anterior compartment defect in five patients in the LLS group and one patient in the VALLS group. These patients were overweight or obese. Only one (3.8%) patient in the VALLS group required reoperation after more than 12 months, which is consistent with previously reported reoperation rates (3.4–11%) [34].
LLS is not preferred if significant apical and posterior defects are present together [35]. In LLS procedures using T-shaped synthetic mesh grafts, the lateral mesh arms do not close the Douglas space [14]. This may result in the progression of the posterior vaginal compartment defect [36]. However, the suspension axis of a lateral mesh does not lead to enterocele or space of Douglas hernia in patients treated for apical and anterior POP [11]. Reduced reoperation and recurrence risks have been reported in patients undergoing apical compartment defect repair with simultaneous posterior compartment repair [37]. We repaired posterior compartment defects using posterior colporrhaphy. We had one case of rectocele recurrence in VALLS group.
Limitations of our study are its retrospective, single-centre design, small sample size, and short follow-up period. On the other hand, a strength of this study is that all operations were standardized and performed by the same surgeon. Our study contributes to the literature by describing a new surgical method. Prospective studies including large numbers of patients and longer post-operative follow-up periods are needed to further evaluate this approach and compare it with other pelvic reconstructive surgery techniques.
VALLS appears to be a reliable and efficient modified method for women with POP scheduled for LLS. VALLS may reduce the POP recurrence rates, especially in obese patients. It also offers an advantage in terms of operation time and can be helpful to surgeons with modest laparoscopic suturing abilities. Moreover, it provides the opportunity for pubocervical fascia plication and posterior colporrhaphy when necessary. Further studies are warranted to evaluate this technique.
EA conceptualized and designed the study, drafted the initial manuscript, performed surgical operations, and reviewed and revised the manuscript. BS and AAS designed the data collection instruments, collected data, carried out the initial analyses, and reviewed and revised the manuscript. All authors read and approved the final manuscript.
This study was conducted in the Department of Obstetrics and Gynecology of Muğla Sıtkı Koçman University Faculty of Medicine in retrospective design. The study was approved by the Clinical Investigations’ Ethics Committee of Mugla University/Turkey (Approval date: February 17th, 2021 and No: 4/I). The written informed consent was obtained from all participants in accordance with Helsinki Declaration.
The authors wish to thank the numerous individuals who participated in this study. In addition, the authors thank all the peer reviewers for their opinions and suggestions.
This research received no external funding.
The authors declare no conflict of interest.