Female ventral-onlay buccal mucosal graft urethroplasty supported with martius labial fat pad flap: early results.

PURPOSE: There is a growing interest in reconstructive urology and female urethroplasty. We aimed to report our experience in ventral-onlay buccal mucosa graft (BMG) urethroplasty supported with Martius flap (MF) in treating female urethral stricture disease. METHODS: We retrospectively evaluated data of 18 female patients (ages 35-78) who were diagnosed with urethral stricture disease and underwent ventral-onlay BMG urethroplasty supported with MF by single surgeon in a tertiary referral centre between February 2019 and October 2022. Detailed history, international prostate symptom score (IPSS), pelvic examination, urine flow rate (rate and pattern), post void residual (PVR), storage and voiding phase urodynamic study, and voiding cystourethrography were recorded. At the last visit; the number of urethral dilatations before urethroplasty, time from urethral dilation to urethroplasty, hospital stay, urethral catheterization time, postoperative IPSS, PVR and uroflowmetry values were recorded. RESULTS: The presenting symptoms were obstructive voiding symptoms in 16 patients. While the mean number of urethral dilatation was 2.11 ± 1.93 (1-7), the mean time from dilatation to urethroplasty was 5.83 ± 5.00 (1-19 months) months. Maximum flow rate increased from 8.36 ± 3.26 ml/sec in preoperative uroflowmetry to 21.45 ± 5.27 ml/sec at the last follow-up (p < 0.001). Post-void residual urine (PVR) decreased from preoperative mean 116.66 ± 105.88 cc to 26.94 ± 22.69 cc postoperatively (p < 0.004). None of the patients developed stricture recurrence, incontinence or vaginal fistula until the last follow-up. The mean follow-up period was 17.28 ± 11.65 (1-35) months. CONCLUSIONS: A ventral-onlay BMG urethroplasty supported with MF represents an effective and reproducible treatment option for FUS in the present study.

Gender differences in the distribution of children's physical activity: evidence from nine countries.

BACKGROUND: Physical activity in childhood is thought to influences health and development. Previous studies have found that boys are typically more active than girls, yet the focus has largely been on differences in average levels or proportions above a threshold rather than the full distribution of activity across all intensities. We thus examined differences in the distribution of physical activity between girls and boys in a multi-national sample of children. METHODS: We used the harmonised International Children Accelerometry Database (ICAD), including waist-worn accelerometry data from 15,461 individuals (Boys: 48.3%) from 9 countries. Employing Generalised Additive Models of Location, Shape, and Scale (GAMLSS) we investigated gender differences in the distribution of individuals, including comparisons of variability (SD) and average physical activity levels (mean and median) and skewness. We conducted this analysis for each activity intensity (Sedentary, Light, and Moderate-to-Vigorous (MVPA)) and a summary measure (counts per minute (CPM)). RESULTS: Sizable gender differences in the distribution of activity were found for moderate to vigorous activity and counts per minute, with boys having higher average levels (38% higher mean volumes of MVPA, 20% higher CPM), yet substantially more between-person variability (30% higher standard deviation (SD) for MVPA, 17% higher SD for CPM); boys' distributions were less positively skewed than girls. Conversely, there was little to no difference between girls and boys in the distribution of sedentary or light-intensity activity. CONCLUSIONS: Inequality in activity between girls and boys was driven by MVPA. The higher mean volumes of MVPA in boys occurred alongside greater variability. This suggests a need to consider the underlying distribution of activity in future research; for example, interventions which target gender inequality in MVPA may inadvertently lead to increased inequality within girls.

Sarcopenia is an independent predictor of survival in patients undergoing radical cystectomy for bladder cancer: a single-centre, retrospective study.

Introduction: This study aimed to determine whether sarcopenia is a predictor of overall survival (OS) and cancer-specific survival (CSS) in patients with bladder cancer (BC) undergoing radical cystectomy (RC). Material and methods: Patients who underwent radical cystectomy for BC between September 2016 and June 2022 were retrospectively reviewed. Patients underwent digital computed tomography (CT) scans of the abdomen and pelvis. The skeletal muscle index (SMI) was used to assess sarcopenia using CT images. OS and CSS were estimated using Kaplan-Meier curves. Predictors of CSS and OS were analysed using univariate and multivariate Cox regression models. Results: Of the 84 reviewed patients, 45 (53.6%) had sarcopenia. The median follow-up period for survivors was 70 months. Patients with sarcopenia were older and had a lower BMI, but other preoperative clinical and laboratory parameters were similar to those of patients without sarcopenia. During follow-up, 57 (67.9%) patients died, 39 (46.4%) due to BC. In addition, patients with sarcopenia had worse 5-year OS (24.4% vs 41.0%, p = 0.036) and CSS (35.6% vs 61.5%, p = 0.012) than non-sarcopenic patients. The findings indicate that sarcopenia is an independent predictor of increased CSS (HR, 2.841; p = 0.003) and overall mortality (HR, 2.465; p = 0.004) in multivariate analysis. Conclusions: The results of this study support the view that sarcopenia is an important risk factor for predicting CSS and OS in BC patients undergoing RC.

Ventral onlay buccal mucosa graft urethroplasty for female urethral stricture improves female sexual functions.

Female urethroplasty provides excellent results with high success rates in the treatment of female urethral stricture (FUS), but sexual functions after urethroplasty is another concern and have not been adequately investigated. We aimed to evaluate changes in the sexual functions of patients undergoing ventral onlay buccal mucosa graft urethroplasty (VOBMGU). We retrospectively evaluated 18 patients who underwent VOBMGU supported with a Martius labial fat pad flap (MLFPF) in our tertiary referral centre, between 2019 and 2021. After excluding patients who were sexually inactive and those with missing postoperative data, 13 patients were included. Surgical outcomes were assessed with uroflowmetry, the American Urological Association symptom score (AUA-SS), and Urogenital Distress Inventory (UDI)-6. Short Form-36 (SF-36) was used to evaluate the quality of life (QoL). Sexual function was assessed using the Female Sexual Function Index (FSFI) both preoperatively and at 6 months following surgery. The median age was 50 (IQR:44-62) years. There was no surgical failure, and none of the patients developed incontinence or stricture recurrence during a median follow-up of 30 (IQR:12-30) months. The median maximum flow rate increased from 9.2 (IQR:5-11.5) to 19 (IQR:17.35-27.10) ml/s (p = 0.001), the median post-void residual (PVR) volume decreased from 80 (IQR:0-205) to 20 (IQR:10-45) ml (p = 0.021), the median AUA-SS decreased from 19 (IQR:14-22) to 6 (IQR:4-8) (p = 0.001), and the median UDI-6 score decreased from 12 (IQR:6.5-16) to 4 (IQR:2-9) (p = 0.008) postoperatively. Bodily pain and general health perception domains and the physical component summary score were significantly improved in the SF-36 (p = 0.015, 0.022, and 0.009, respectively). The median total FSFI score increased from 17.40 (IQR:1.95-23.65) to 22.60 (IQR:5-24.95) postoperatively (p = 0.004). Improvements were observed in all domains (p < 0.05) except the arousal (p = 0.058) and pain (p = 0.104) domains of the FSFI. We concluded that VOBMGU has good early functional results and improves female sexual function.

Can pelvic diameter measurement have an effect on surgical outcomes in radical cystectomy?

OBJECTIVE: To determine the effectiveness of pelvis diameters in determining postoperative outcomes in men who underwent open radical cystectomy + urinary diversion, it is aimed to predict the factors that may affect the operative difficulty and possible surgical outcomes before the operation. METHODS: A total of 79 radical cystectomy patients operated in our institution with preoperative computed tomography (CT) were included the study. Pelvic dimensions; symphysis angle (SA), upper conjugate, lower conjugate, pelvic depth, apical depth (AD), interspinous distance (ISD), bone femoral width and soft tissue width were measured by preoperative CT. ISD index were defined as ISD/AD. Postoperative outcomes and indicators of operative difficulty were recorded. Regression analyses were used to predict perioperative and postoperative outcomes. RESULTS: Total of 96 complications were observed in 52 of the 79 patients in ninety days (65,8%) with a mean age of 68.25 years. There were significant correlations between SA and body mass index (BMI) with operative time (p = 0.006, p < 0.001; respectively). For estimated blood loss, there were significant correlations between preoperative hematocrit (p = 0,031). Analysis of multivariate logistic regression revealed that higher Charlson comorbidity index (CCI) and BMI were found to be significant predictors for major complications while CCI, pathological T stage and ISD index are prominent predictors for surgical margin positivity. CONCLUSIONS: Pelvic dimensions are not significant with minor or major complications. However, operative time may be associated with SA. Also, narrow and deep pelvis may increase the risk of positive surgical margins.

Impact of VieScope® on first-attempt success during simulated COVID-19 patients intubation: A randomized cross-over simulation trial.

BACKGROUND: The purpose of our study was to determine the efficacy of intubation with VieScope® and Macintosh laryngoscope in different scenarios of simulated COVID-19 patients by paramedics wearing personal protective equipment (PPE) for aerosol gener-ating procedures (AGPs). METHODS: Study was designed as a prospective, observational, randomized, crossover simulation trial. 37 paramedics took part in the study. They performed endotracheal intubation (ETI) of a person suspected of COVID-19. Intubation was performed using VieS-cope® and Macintosh laryngoscopes in two research scenarios: Scenario A - normal airway and Scenario B - difficult airway. Both the order of participants and the methods of intubation were random. RESULTS: In Scenario A, time to intubation using VieScope® and Macintosh laryngoscope amounted to 35.3 (IQR; 32-40) seconds and 35.8 (IQR: 30-40)s, respectively. Nearly all participants performed ETI successfully both with VieScope® and Macintosh laryngo-scope (100% vs. 94.6%). In scenario B, intubation with the VieScope®, compared to the Macintosh laryngoscope, was associated with a shorter intubation time (p<0.001), a higher success rate of the first intubation attempt (p<0.001), a better visualization degree glottis (p=0.012) and ease of intubation (p<0.001). CONCLUSION: Our analysis suggests that the use of a VieScope® compared to Macintosh laryngoscope in difficult airway intuba-tion performed by paramedics wearing PPE-AGP is associated with shorter intubation times, greater intubation efficiency as well as better visualization of the glottis. Additional clinical trials are necessary to confirm the obtained results.

Influence of toileting behavior on the natural course of anterior vaginal wall prolapse.

BACKGROUND: Many risk factors for pelvic organ prolapse (POP) have been proposed, and the cause is most likely multifactorial. This study aimed to investigate the effect of toileting behaviors on the natural course of anterior vaginal wall prolapse (AVWP). METHODS: Data on 75 women who underwent surgery for symptomatic AVWP were collected. Patients with grade ≥ II AVWP were included in this study and were divided into two groups according to their voiding and defecation position. The volunteers who voided and defecated in a sitting position comprised Group 1, and those who voided and defecated in a squatting position comprised Group 2. The Colorectal-Anal Impact Questionnaire (CRAIQ), Pelvic Floor Impact Questionnaire (PFIQ), Pelvic Organ Prolapse Impact Questionnaire (POPIQ), Urinary Impact Questionnaire (UIQ) and visual analog scale (VAS) pain scores were used to evaluate the patients' symptoms. RESULTS: Forty-four patients were included in Group 1 (sitting position), and 31 patients were included in Group 2 (squatting position). The groups were similar in terms of BMI, parity, menopause duration, topical estrogen use, comorbidities, the presence of constipation and urinary incontinence, and the pad count for incontinence. The time from initial symptoms to surgery was shorter in Group 2 than in Group 1 12 (3-73) and 24 (2-182) months (p = 0.001), respectively. The PFIQ, POPIQ and POP-related VAS scores were significantly higher in patients who voided and defecated in a squatting position. CONCLUSION: In patients with symptomatic POP, increased IAP while performing the squat position during defecation and voiding may increase the severity of patients' symptoms related to prolapse more than that of sitting position. Therefore, questioning the toileting position of patients with AVWP may help inform management decisions, with changing to a sitting position encouraged.

The Simple Nephrectomy Is Not Always Simple: Predictors of Surgical Difficulties.

BACKGROUND: Inflammation is one of the major risk factors for SN complications because the dense and fibrotic tissue leads to significant challenges to dissection. OBJECTIVES: We aimed to evaluate the predictive factors preoperatively, especially inflammation markers and radiologic findings, which can pose challenges to surgery in simple nephrectomy. METHODS: We retrospectively evaluated the data of 156 patients who underwent simple open nephrectomy. There were 87 patients in group 1 (peroperative nonadherent perinephric fat) and 69 patients in group 2 (peroperative adherent perinephric fat). The preoperative computed tomography findings (renal volume, perinephric stranding, posterior perinephric fat thickness, lateral perinephric fat thickness, Hounsfield unit [HU] of perinephric fat, HU of subcutaneous fat, HU of renal parenchyma, HU of renal pelvis), side of the kidney affected, prior surgery at the same kidney, complication rates, and operative time were analyzed. Preoperative inflammation markers, neutrophil-lymphocyte ratio, systemic immune-inflammation index, monocyte-HDL ratio, and platelet-lymphocyte ratio levels were recorded. RESULTS: Preoperative NLR and SII were statistically higher, and HDL was statistically lower in group 2; there was no difference in PLR and monocyte-HDL ratio between the 2 groups. According to the preoperative imaging, the perinephric stranding, HU of perinephric fat, and HU of renal parenchyma were higher in group 2, 54 (78.3), -36.93 (-91.46, -21.69), and 38.60 (32.11, 41.94), respectively. DM, history of nonsterile urine culture, HU of perinephric fat >61.78, and SII >689.36 were the factors that could be identified as independent significant predictors of presence of adherent perinephric fat. CONCLUSION: The radiological findings and inflammation markers can be used as the predictive factor for peroperative adherent perinephric tissue and surgical difficulties.

Comparison of real-life data of abiraterone acetate and enzalutamide in metastatic castration-resistant prostate cancer.

To compare enzalutamide (E) and abiraterone acetate (AA) in terms of efficacy, survival and to characterize prognostic factors affecting survival in metastatic castration-resistant prostate cancer (mCRPC) patients. A total of 250 patients treated with E or AA in 5 centers were included. The number of patients with no prostate specific antigen (PSA) decline was higher in the AA group than that in the E group, and the proportion of patients with a PSA decline of ≥ 50% was higher in the E group (p = 0.020). Radiological progression free survival (rPFS) and overall survival (OS) were significantly longer in the E group when compared to that in the AA group (p < 0.001 and p = 0.027, respectively). In the E group, rPFS was significantly longer than that in the AA group in both pre- and post-docetaxel settings (p = 0.010 and p = 0.003, respectively). OS was similar in the pre-docetaxel setting; but in the post-docetaxel setting, E group had a significantly longer OS than the AA group (p = 0.021). In the multivariate analysis performed in the whole patient group, we found that good prognostic factors for rPFS were E treatment, being ≥ 75 years and a PSA decline of ≥ 50% while there was no factor affecting OS. With longer OS and PFS, E seems to be more suitable for mCRPC patients in the post-docetaxel setting than AA.

Epidural blockade for alternative management of priapism: A case report of child with T-cell acute lymphoblastic leukemia.

Priapism is a clinical condition that rarely presents with leukemia in childhood. Management of priapism treatment can become more complex and difficult when accompanied by acute leukemia. We presented a 16 years old child with t-cell acute lymphoblastic leukemia (ALL) who developed priapism. Due to the failure of conservative methods and intracavernosal drainage, we performed epidural blockade which has limited data reported with successful results in the literature before shunt surgery.

Are the preoperative neutrophil/lymphocyte ratio and platelet/lymphocyte ratio predictive for lamina propria invasion in aging patients?

OBJECTIVE: To evaluate if the preoperative neutrophil/lymphocyte ratio (NLR) and platelet/lymphocyte ratio (PLR) are predictive in discriminating between Ta and T1 tumors in aging male patients. METHODS: We retrospectively evaluated 240 male patient data who were ≥ 65 years old, diagnosed primary non-muscle invasive bladder cancer (NMIBC) with transurethral resection between 2008 and 2020. The patients were divided into the two groups according to the pathological stage, which has a stage of Ta defined group 1 and stage of T1 defined group 2. Before the transurethral resection, serum levels of NLR and PLR were obtained from each patient and compared between the groups. RESULTS: About 115 patients enrolled in group 1 (pTa patients) and 106 patients enrolled in group 2 (pT1 patients). The median age was 73 years (range 65-89) in group 1 and 75 years (range 65-98) in group 2. In complete blood cell (CBC) parameters, neutrophil count, NLR and PLR were higher and lymphocyte count was lower in group 2. There was no statistical difference in leukocyte and platelet counts between groups. CONCLUSION: The present study revealed that higher preoperative NLR and PLR were associated with lamina propria invasion in aging male patients with BC and the results have predictive value.

Treatment of Osteoarthritis Secondary to Developmental Dysplasia of the Hip with Prolotherapy Injection versus a Supervised Progressive Exercise Control.

BACKGROUND Osteoarthritis secondary to developmental dysplasia of the hip (DDH) is one of the major causes of hip pain and disability. The aim of the study was to compare the effectiveness of prolotherapy (PrT) injections versus exercise protocol for the treatment of DDH. MATERIAL AND METHODS There were 46 hips of 41 patients who had osteoarthritis secondary to DDH included in this study. Patients were divided into 2 groups: treated with PrT (PrT group; n=20) and exercise (control group; n=21). Clinical outcomes were evaluated with visual analog scale for pain (VAS) and Harris hip score (HHS) at baseline, 3 weeks, 3 months, 6 months, and a minimum of 1-year follow-up. In PrT group clinical results were also compared in Crowe type I-IV hips. RESULTS Between group analysis revealed no significant between group differences at baseline. Dextrose injection recipients out performed exercise controls for VAS pain change score at 6 months (-4.6±2.6 versus -2.8±2.5; P=0.016), and 12 months (-4.5±2.4 versus -2.9±2.5; P=0.017) and for HHS at 6 months (24.2±14.0 versus 14.8±12.4; P=0.007) and 12 months (24.3±13.4 versus 16.5±11.3; P=0.018). CONCLUSIONS To our best knowledge, this study is the first regarding the effects of an injection method in the treatment of osteoarthritis secondary to DDH. According to our study, PrT is superior to exercises. PrT could provide significant improvement for clinical outcomes in DDH and might delay surgery.

Serving as a bedside surgeon before performing robotic radical prostatectomy improves surgical outcomes.

INTRODUCTION: To evaluate the influence of previous experience as bedside assistants on patient selection, perioperative and pathological results in robot assisted laparoscopic radical prostatectomy. MATERIALS AND METHODS: The first 50 cases of two robotic surgeons were reviewed retrospectively. Group 1 consisted of the first 50 cases of the surgeon with previous experience as a robotic bedside assistant between September 2016-July 2018, while group 2 included the first 50 cases of the surgeon with no bedside assistant experience between February 2009-December 2009. Groups were examined in terms of demographics, prostate volume, presence of median lobe, prostate specific antigen (PSA), preoperative Gleason score, positive core number, clinical stage, console surgery time, estimated blood loss, postoperative Gleason score, pathological stage, positive surgical margin rate, postoperative complications, length of hospital stay and biochemical recurrence rate. RESULTS: Previous abdominal surgery and the presence of median lobe hypertrophy rates were higher in Group 1 than in Group 2 (20% vs. 4%, p=0.014; 24% vs. 6%, p=0.012; respectively). In addition, patients in Group 1 were in a higher clinical stage than those in Group 2 (cT2: 70% vs. 28%, p=0.001). Median console surgery time and median length of hospital stay was significantly shorter in Group 1 than in Group 2 (170 min vs. 240 min, p=0.001; 3 vs. 4, p=0.022; respectively). Clavien grade 3 complication rate was higher in Group 2 but was statistically insignificant. CONCLUSION: Our findings might reflect that previous bedside assistant experience led to an increase in self-confidence and the ability to manage troubleshooting and made it more likely for surgeons to start with more difficult cases with more challenging patients. It is recommended that novice surgeons serve as bedside assistants before moving on to consoles.

Serving as a bedside surgeon before performing robotic radical prostatectomy improves surgical outcomes

ABSTRACT Introduction: To evaluate the influence of previous experience as bedside assistants on patient selection, perioperative and pathological results in robot assisted laparoscopic radical prostatectomy. Materials and Methods: The first 50 cases of two robotic surgeons were reviewed retrospectively. Group 1 consisted of the first 50 cases of the surgeon with previous experience as a robotic bedside assistant between September 2016-July 2018, while Group 2 included the first 50 cases of the surgeon with no bedside assistant experience between February 2009-December 2009. Groups were examined in terms of demographics, prostate volume, presence of median lobe, prostate specific antigen (PSA), preoperative Gleason score, positive core number, clinical stage, console surgery time, estimated blood loss, postoperative Gleason score, pathological stage, positive surgical margin rate, postoperative complications, length of hospital stay and biochemical recurrence rate. Results: Previous abdominal surgery and the presence of median lobe hypertrophy rates were higher in Group 1 than in Group 2 (20% vs. 4%, p=0.014; 24% vs. 6%, p=0.012; respectively). In addition, patients in Group 1 were in a higher clinical stage than those in Group 2 (cT2: 70% vs. 28%, p=0.001). Median console surgery time and median length of hospital stay was significantly shorter in Group 1 than in Group 2 (170 min vs. 240 min, p=0.001; 3 vs. 4, p=0.022; respectively). Clavien grade 3 complication rate was higher in Group 2 but was statistically insignificant. Conclusion: Our findings might reflect that previous bedside assistant experience led to an increase in self-confidence and the ability to manage troubleshooting and made it more likely for surgeons to start with more difficult cases with more challenging patients. It is recommended that novice surgeons serve as bedside assistants before moving on to consoles.

Comparison of Platelet Rich Plasma and Prolotherapy in the Management of Osteochondral Lesions of the Talus: A Retrospective Cohort Study.

BACKGROUND Osteochondral lesions of talus (OLT) are among the most common ankle problems. Platelet-rich plasma (PRP) and prolotherapy (PrT) are 2 successful injection-based techniques for treatment of chronic musculoskeletal problems. The aim of the present study was to compare PRP and PrT injections for the management of OLT. MATERIAL AND METHODS This was a retrospective cohort study of 49 patients with OLT symptoms of more than 6 months who had been refractory to 3 months of treatment using conservative methods. The patients were divided into 2 groups: PrT injections (PrT group, n=27) or PRP injections (PRP group, n=22). The patients were given 3 injections of 4 mL solution into periarticular and intra-articular ankle joint spaces. After treatment, patients were evaluated via Visual Analogue Scale (VAS), American Orthopedic Foot and Ankle Society Score (AOFAS), and Ankle Osteoarthritis Scale (AOS) at baseline and 21-, 90-, 180-, and 360-day follow-up periods. RESULTS Both PRP and PrT treatments resulted in greater improvement in pain and ankle functions at follow-up periods extending to 1 year (P<0.001) and there was no difference between the groups for the outcomes at follow-up periods (P>0.05). Excellent or good outcomes were reported by 88.8% of the patients in PrT group and 90.9% of the patients in PRP group. CONCLUSIONS Both PRP and PrT are efficient and safe methods in treatment of OLT. PrT offers advantages of less cost and minimal invasiveness.

Dextrose injections for failed back surgery syndrome: a consecutive case series.

PURPOSE: Patients with chronic low back pain, who do not respond to conservative treatment methods, generally undergo surgical revision operations, and sometimes an undesirable condition called failed back surgery syndrome (FBSS) may be inevitable. Hereby, dextrose is one of the regenerative methods that has gained popularity in the treatment of many musculoskeletal problems, and we aimed to present and evaluate the outcomes of 5% dextrose for the treatment of FBSS. METHODS: It has been designed as a consecutive case series. A total of 79 patients with FBSS, who had minimum 6 months of symptoms and did not respond to 3 months of conservative methods between May 2014 and March 2016, participated in the study. Prolotherapy injections were applied in posterior and lateral approaches. Visual Analog Scale (VAS) and Oswestry Disability Index (ODI) were used for the pre- and post-treatment evaluations. Patient satisfaction was assessed with using a 5-point Likert scale by phone contacting. RESULTS: There was statistically significant difference between repeated VAS and ODI measurements. CONCLUSIONS: These results may be the first step giving a lead to an undiscovered field. This treatment method should be kept in mind for FBSS patients before giving a decision of revision surgery. These slides can be retrieved under Electronic Supplementary Material.

Pedicle axis view combined by sacral mapping can decrease fluoroscopic shot count in percutaneous iliosacral screw placement.

BACKGROUND: Percutaneous iliosacral screw fixation of the posterior pelvic ring is a demanding procedure with high exposure to radiation. The conventional technique includes the use of three classical projections with the C-arm: inlet, outlet, and true lateral views. A projection in the axis of the upper sacral alar pedicles with a 30° cephalad and 30° ventral oblique view would help in obtaining a more accurate visualization of the safe corridor. Two subcutaneously placed K-wires, one placed horizontally and one vertically, may facilitate the starting point and aim changes by offering the surgeon an option for exactly matching the position of the sacrum with the image. The purpose of this study was to detect if the radiation application could be decreased by our new methodology. METHODS: Seventeen patients with pelvic posterior ring disruptions, in which percutaneous iliosacral screw placement was indicated, were included in the study. Group 1 comprised 7 patients in whom conventional projections and technique were used. Group 2 comprised 10 patients in whom 30°­30° projection and sacral mapping technique via two subcutaneous K-wires were applied. Radiation exposure time, total fluoroscopic shot count, fluoroscopic shot count needed for only guide wire and screw placement, radiation dose, and complications were compared between the two groups. RESULTS: The median number of fluoroscopic images for guide and screw placement was 132 (56­220) and 29.5 (19­83) in Groups 1 and 2, respectively, and the difference was statistically significant (p < 0.001). The median total fluoroscopic radiation time was 138 (68­234) and 52 (28­77) s in Groups 1 and 2, respectively, and the difference was significant (p < 0.001). Group 1 had a significantly higher median radiation dose than Group 2 [3020 (1502­6032) vs. 1192 (426­2359); (p = 0.001)]. CONCLUSIONS: Iliosacral screw placement with the help of sacral mapping and a fourth view, "30°­30°", helps the surgeon to markedly reduce the fluoroscopic shots, radiation time and dose during guide wire and screw placement. LEVEL OF EVIDENCE: Therapeutic, Level II.