bluuebunny/crossref_metadata_2025_split huggingface dataset:
Delayed return of urinary continence following the removal of neglected sacral shrapnel
Authors: Usman B. , Mohammed B. , Dogo H. M. 
Published: May 2022

Abstract
Background
Globalisation of terrorism has led to an increase in the number of injuries from the explosion of improvised explosive devices, with complications resulting from the retained shrapnel. It had been found that a third of those who sustained penetrating spinal cord injuries are from explosions. Retained foreign body in the sacral canal segment is rare, especially shrapnel presenting with urinary incontinence. Moreover, the one who had a dramatic recovery of urinary continence following removal of neglected sacral canal shrapnel. We report a case of a delayed improvement (recovery) in urinary continence following removal of neglected sacral canal shrapnel remotely aided by a pelvic floor exercise.

Case presentation
Our patient was a 14-year-old male who presented with a 3-year history of trauma to the lower back from an Improvised Explosive Device. He was initially associated with difficulty in walking that improved over eight months. However, the urinary incontinence persisted. He was found to be preserved with no neurological deficit in the lower limb. There was a lower back, midline wound, discharging pus. Lumbosacral imaging revealed a sacral (S2) canal Shrapnel. As a case of urinary incontinence from sacral shrapnel, he had the removal of the shrapnel, did well postoperatively, commenced on pelvic floor exercise. He became continence of urine over time.

Conclusions
Retained foreign bodies in the spinal canal are associated with complications that include neurological deficit. Neglected (long-standing) sacral shrapnel with urinary incontinence is rare; moreover, the recovery of the continence with the removal of the shrapnel is aided by the commencement of pelvic floor exercise.
Aeroacoustic prediction based on large-eddy simulation and the Ffowcs Williams–Hawkings equation
Authors: Zhang Yufei , Xiao Yang , Liu Ruihuan , Chen Haixin 
Published: May 2022

AbstractA hybrid noise computation method is presented in this paper. Large-eddy simulation with wall-model equation is proposed to compute the flow field. With a stress-balanced wall-model equation, the near-wall computation cost of large eddy simulation was effectively reduced. The instantaneous flow variables obtained by the large-eddy simulation were used to compute the noise source terms of the Ffowcs Williams–Hawkings equation. The present method was investigated with two test cases: a single cylinder atRe = 10,000 and a rod-airfoil atRe = 480,000. The flow quantities and aeroacoustic characteristics were compared with the reference data. The mean velocity profiles and spectra of the flow fluctuations were consistent with data from the literature. When compared with the reference data, the noise computation error was less than 3 dB. The computation results demonstrate the present wall-modeled large eddy simulation is efficient for the noise computation of complex vortex shedding flows.
Outcomes of total arterial revascularization vs conventional revascularization in patients undergoing coronary artery bypass graft surgery: A narrative review of major studies
Authors: Dominici Carmelo , Chello Massimo , Saeed Sahrai 
Published: May 2022

Coronary artery bypass grafting (CABG) is a widely used surgical procedure which improves clinical outcomes in appropriately selected patients. Conventionally, the greater saphenous vein is often used in CABG. However, due to their higher long-term patency rates, arterial conduits are routinely used, with the left internal thoracic artery (LITA) on left anterior descending (LAD) being the gold standard in CABG. Our aim in the present work was to investigate the outcomes of a total arterial grafting (TAG) on the whole heart, with no use of venous grafts, compared to mixed conduits in real-world data. A literature search was conducted in the bibliographic databases PubMed and Web of Science. Only studies comparing TAG with conventional CABG (at least one venous graft plus one or more arterial grafts), with at least one hundred patients in each group were included in this review. After study selection, a total of 15 relevant studies were evaluated and discussed in the present review. Results indicated that TAG is a highly efficient technique, and multiple arterial grafts can be used to reliably revascularize all coronary artery territories. TAG was more beneficial in terms of both short and long-term outcomes and its use should be encouraged. Large randomized clinical trials are needed to confirm the superiority of total arterial grafting with regard to long-term outcomes.
doi: https://doi.org/10.12669/pjms.38.5.5674
How to cite this:Dominici C, Chello M, Saeed S. Outcomes of total arterial revascularization vs conventional revascularization in patients undergoing coronary artery bypass graft surgery: A narrative review of major studies. Pak J Med Sci. 2022;38(5):---------. doi: https://doi.org/10.12669/pjms.38.5.5674
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Severe calcification of forgotten Double-J ureteral stent in a patient with undiagnosed hyperparathyroidism
Authors: Ostrowska Magdalena , Kaczyński Szymon , Skwara Dominika , Grześk-Kaczyńska Magdalena , Ostrowski Adam , Drewa Tomasz 
Published: May 2022

Background
Double J stent (DJ) is widely used in urological practice in patients with renal stones. However, its application is related to the risk of incrustation. We present a case of severe calcification of forgotten DJ in a patient with previously undiagnosed hyperparathyroidism (HPT).
Case presentation
A 30-year-old female was admitted to the Urology Department with renal colic. An initial kidney, ureter, and bladder X-ray revealed a completely calcified DJ catheter placed twelve months earlier. Unfortunately, the patient did not show up for a follow-up visit, and stent removal was not performed. Due to the extent of the disease, the patient was qualified for multistage endoscopic treatment. Total treatment lasted six months and consisted of five urereroscopies and one hybrid procedure. Simultaneously, diagnostics of a metabolic cause of the advanced stone disease suggested primary hyperparathyroidism, confirmed during parathyroid scintigraphy. After urological treatment had been completed, parathyroidectomy was performed. During a further 7-year follow-up, only one episode of renal colic occurred within the first year after treatment. The patient is stone-free until the present day.
Conclusions
Stents are designed to last usually up to six months, but they should be removed as quickly as possible after finishing treatment. Also, other causes such as a metabolic or hormonal imbalance should be considered. In our patient combination of forgotten DJ and HPT was the reason for excessive stone formation. Selective removal of the parathyroid gland was effective in the presented patient, with no stone recurrence observed.
The role of Demodex folliculorum in pathogenesis of rosacea
Authors: Wieteska Małgorzata , Maj Dominik , Gorecka Adrianna , Gorajek Anna , Wacławska Monika , Chałupnik Aleksandra 
Published: May 2022

Introduction and objective: Rosacea is a common chronic inflammatory disease that affects approximately 10% of the population globally. The exact pathogenesis of rosacea remains unknown. However, there are considered several factors such as genetic predisposition, environmental impact, immune dysregulation, as well as presence of microorganisms. The aim of the study is to review recent knowledge about the relationship between rosacea and Demodex folliculorum. The information used in the presented analysis was obtained by searching academic research databases: Google Scholar and PubMed.
An abbreviated description of the state of knowledge: Demodex folliculorum is a microscopic mite that resides in the hair follicles and sebaceous glands of the skin. Current studies show that Demodex folliculorum plays an important role in pathogenesis of rosacea. That is related with the induction of excessive pro-inflammatory skin response combined with increase in inflammation mediators. Moreover in patients with rosacea there is observed a nearly 6-fold increase in Demodex folliculorum density in comparison to general population. Increased number of mites is associated with local immunosuppression that may predispose to the development of rosacea. The presence of Demodex mites is related not only with acute course and prolonged duration of the disease, but also with higher probability of recurrence.
Summary: Demodex folliculorum is involved in the pathogenesis of rosacea. Moreover, as a parasite, it significantly decreases the quality of patient’s life. Therefore, patients with severe rosacea should be examined for the presence of Demodex mites. In case of detection, regardless of its quantitative load, antiparasitic drug should be recommended.
Risk of revision based on timing of corticosteroid injection prior to shoulder arthroplasty
Authors: Stadecker Monica , Gu Alex , Ramamurti Pradip , Fassihi Safa C. , Wei Chapman , Agarwal Amil Raj , Bovonratwet Patawut , Srikumaran Uma 
Published: May 2022

Aims Corticosteroid injections are often used to manage glenohumeral arthritis in patients who may be candidates for future total shoulder arthroplasty (TSA) or reverse shoulder arthroplasty (rTSA). In the conservative management of these patients, corticosteroid injections are often provided for symptomatic relief. The purpose of this study was to determine if the timing of corticosteroid injections prior to TSA or rTSA is associated with changes in rates of revision and periprosthetic joint infection (PJI) following these procedures. Methods Data were collected from a national insurance database from January 2006 to December 2017. Patients who underwent shoulder corticosteroid injection within one year prior to ipsilateral TSA or rTSA were identified and stratified into the following cohorts: < three months, three to six months, six to nine months, and nine to 12 months from time of corticosteroid injection to TSA or rTSA. A control cohort with no corticosteroid injection within one year prior to TSA or rTSA was used for comparison. Univariate and multivariate analyses were conducted to determine the association between specific time intervals and outcomes. Results In total, 4,252 patients were included in this study. Among those, 1,632 patients (38.4%) received corticosteroid injection(s) within one year prior to TSA or rTSA and 2,620 patients (61.6%) did not. On multivariate analysis, patients who received corticosteroid injection < three months prior to TSA or rTSA were at significantly increased risk for revision (odds ratio (OR) 2.61 (95% confidence interval (CI) 1.77 to 3.28); p < 0.001) when compared with the control cohort. However, there was no significant increase in revision risk for all other timing interval cohorts. Notably, Charlson Comorbidity Index ≥ 3 was a significant independent risk factor for all-cause revision (OR 4.00 (95% CI 1.40 to 8.92); p = 0.036). Conclusion There is a time-dependent relationship between the preoperative timing of corticosteroid injection and the incidence of all-cause revision surgery following TSA or rTSA. This analysis suggests that an interval of at least three months should be maintained between corticosteroid injection and TSA or rTSA to minimize risks of subsequent revision surgery. Cite this article: Bone Joint J 2022;104-B(5):620–626.
The CPUP Hip Score predicts displacement of the hip in children with cerebral palsy
Authors: Gaston Mark S. , Wordie Sarah J. , Wagner Philippe , Hägglund Gunnar , Robb James E. 
Published: May 2022

Aims The Uppföljningsprogram för cerebral pares (CPUP) Hip Score distinguishes between children with cerebral palsy (CP) at different levels of risk for displacement of the hip. The score was constructed using data from Swedish children with CP, but has not been confirmed in any other population. The aim of this study was to determine the calibration and discriminatory accuracy of this score in children with CP in Scotland. Methods This was a total population-based study of children registered with the Cerebral Palsy Integrated Pathway Scotland. Displacement of the hip was defined as a migration percentage (MP) of > 40%. Inclusion criteria were children in Gross Motor Function Classification System (GMFCS) levels III to V. The calibration slope was estimated and Kaplan-Meier curves produced for five strata of CPUP scores to compare the observed with the predicted risk of displacement of the hip at five years. For discriminatory accuracy, the time-dependent area under the receiver operating characteristic curve (AUC) was estimated. In order to analyze differences in the performance of the score between cohorts, score weights, and subsequently the AUC, were re-estimated using the variables of the original score: the child’s age at the first examination, GMFCS level, head shaft angle, and MP of the worst hip in a logistic regression with imputation of outcomes for those with incomplete follow-up. Results The discriminatory accuracy of the score in the new population of 367 children was high (AUC 0.78 (95% confidence interval (CI) 0.71 to 0.86)). The calibration of the score was insufficient (slope 0.48 (95% CI 0.31 to 0.65)), and the absolute risks of displacement of the hip in this population were overestimated. The AUC increased with re-estimated weights (0.85 (95% CI 0.79 to 0.91)). Conclusion The CPUP Hip Score had a high ability to discriminate between children at different levels of risk for displacement of the hip. The score overestimated the absolute risks of displacement in this population, which may have resulted from differences in the way children were initially registered in the two programmes. The results are promising, but the score weights may need re-estimation before its clinical application in Scotland. Cite this article: Bone Joint J 2022;104-B(5):640–644.
Bone grafting for scaphoid nonunion surgery
Authors: Duncumb Joseph W. , Robinson Patrick G. , Williamson Tom R. , Murray Iain R. , Campbell Doug , Molyneux Samuel G. , Duckworth Andrew D. 
Published: May 2022

Aims The purpose of this systematic review was to determine the rates of union for vascularized versus non-vascularized grafting techniques in the operative management of scaphoid nonunion. Secondary aims were to determine the effect of the fixation techniques used, the source of grafting, as well as the influence of fracture location (proximal pole) and avascular necrosis (AVN). Methods A search of PubMed, MEDLINE, and Embase was performed in June 2021 using the Preferred Reporting Items for Systematic Review and Meta-Analyses statement and registered using the PROSPERO International prospective register of systematic reviews. The primary outcome was union rate. Results There were 78 studies that met the inclusion criteria with a total of 7,671 patients (87.8% male, 12.2% female). The mean age was 27.9 years (SD 3.8) and the mean follow-up was 30.9 months (SD 25.9). The mean union rate was 88.7% (95% confidence interval (CI) 85.0 to 92.5) for non-vascularized grafts versus 87.5% (95% CI 82.8 to 92.2) for vascularized grafts (p = 0.685). Pooled analysis of trial data alone found a mean union rate of 82.4% (95% CI 66.9% to 97.9%) for non-vascularized grafts and 89.4% (95% CI 84.1% to 94.7%) for vascularized grafts (p = 0.780). No significant difference was observed in union rates between any of the fixation techniques used in the studies (p = 0.502). Distal radius and iliac crest graft source had comparable mean union rates (86.9% (95% CI 83.1 to 90.7) vs 87.6% (95% CI 82.2 to 92.9); p = 0.841). Studies that excluded patients with both proximal pole fractures and AVN (n = 14) had a mean union rate of 96.5% (95% CI 94.2 to 98.9) that was significantly greater than the mean union rate of 86.8% (95% CI 83.2 to 90.4) observed in the remaining studies (p < 0.001). Conclusion Current evidence suggests vascularized bone grafting does not yield significantly superior results to non-vascularized grafting in scaphoid nonunion management. However, potential selection bias lessens the certainty of these findings. The fixation type or source of the graft used was not found to influence union rates either. Sufficiently designed and powered prospective randomized controlled trials in this area are needed. Cite this article: Bone Joint J 2022;104-B(5):549–558.
Hemiarthroplasty or total elbow arthroplasty for unreconstructable distal humeral fractures in patients aged over 65 years
Authors: Burden Eleanor Grace , Batten Timothy , Smith Christopher , Evans Jonathan P. 
Published: May 2022

Aims Arthroplasty is being increasingly used for the management of distal humeral fractures (DHFs) in elderly patients. Arthroplasty options include total elbow arthroplasty (TEA) and hemiarthroplasty (HA); both have unique complications and there is not yet a consensus on which implant is superior. This systematic review asked: in patients aged over 65 years with unreconstructable DHFs, what differences are there in outcomes, as measured by patient-reported outcome measures (PROMs), range of motion (ROM), and complications, between distal humeral HA and TEA? Methods A systematic review of the literature was performed via a search of MEDLINE and Embase. Two reviewers extracted data on PROMs, ROM, and complications. PROMs and ROM results were reported descriptively and a meta-analysis of complications was conducted. Quality of methodology was assessed using Wylde’s non-summative four-point system. The study was registered with PROSPERO (CRD42021228329). Results A total of 29 studies met the inclusion and exclusion criteria. The mean Disabilities of the Arm, Shoulder and Hand questionnaire (DASH) score was 19.6 (SD 7.5) for HA and 38 (SD 11.9) for TEA and the mean abbreviated version of DASH was 17.2 (SD 13.2) for HA and 24.9 (SD 4.8) for TEA. The Mayo Elbow Performance Score was the most commonly reported PROM across included studies, with a mean of 87 (SD 5.3) in HA and 88.3 (SD 5) in TEA. High complication rates were seen in both HA (22% (95% confidence interval (CI) 5 to 44)) and TEA (21% (95% CI 13 to 30), but no statistically significant difference identified. Conclusion This systematic review has indicated PROMs and ROM mostly favouring HA, but with a similarly high complication rate in the two procedures. However, due to the small sample size and heterogeneity between studies, strength of evidence for these findings is low. We propose further research in the form of a national randomized controlled trial. Cite this article: Bone Joint J 2022;104-B(5):559–566.
Intraoperative pressure sensors improve soft-tissue balance but not clinical outcomes in total knee arthroplasty: a multicentre randomized controlled trial
Authors: MacDessi Samuel J. , Wood Jil A. , Diwan Ashish , Harris Ian A. ,   on behalf of the SENSOR BALANCE Study Group
Published: May 2022

Aims Intraoperative pressure sensors allow surgeons to quantify soft-tissue balance during total knee arthroplasty (TKA). The aim of this study was to determine whether using sensors to achieve soft-tissue balance was more effective than manual balancing in improving outcomes in TKA. Methods A multicentre randomized trial compared the outcomes of sensor balancing (SB) with manual balancing (MB) in 250 patients (285 TKAs). The primary outcome measure was the mean difference in the four Knee injury and Osteoarthritis Outcome Score subscales (ΔKOOS4) in the two groups, comparing the preoperative and two-year scores. Secondary outcomes included intraoperative balance data, additional patient-reported outcome measures (PROMs), and functional measures. Results There was no significant difference in ΔKOOS4 between the two groups at two years (mean difference 0.4 points (95% confidence interval (CI) -4.6 to 5.4); p = 0.869), and multiple regression found that SB was not associated with a significant ΔKOOS4 (0.2-point increase (95% CI -5.1 to 4.6); p = 0.924). There were no significant differences between groups in other PROMs. Six-minute walking distance was significantly increased in the SB group (mean difference 29 metres; p = 0.015). Four-times as many TKAs were unbalanced in the MB group (36.8% MB vs 9.4% SB; p < 0.001). Irrespective of group assignment, no differences were found in any PROM when increasing ICPD thresholds defined balance. Conclusion Despite improved quantitative soft-tissue balance, the use of sensors intraoperatively did not differentially improve the clinical or functional outcomes two years after TKA. These results question whether a more precisely balanced TKA that is guided by sensor data, and often achieved by more balancing interventions, will ultimately have a significant effect on clinical outcomes. Cite this article: Bone Joint J 2022;104-B(5):604–612.
Access to hip arthroplasty and rates of complications in different socioeconomic groups
Authors: Atrey Amit , Pincus Daniel , Khoshbin Amir , Haddad Fares S. , Ward Sarah , Aktar Suriya , Ladha Karim , Ravi Bheeshma 
Published: May 2022

AimsTotal hip arthroplasty (THA) is one of the most successful surgical procedures. The objectives of this study were to define whether there is a correlation between socioeconomic status (SES) and surgical complications after elective primary unilateral THA, and investigate whether access to elective THA differs within SES groups.MethodsWe conducted a retrospective, population-based cohort study involving 202 hospitals in Ontario, Canada, over a 17-year period. Patients were divided into income quintiles based on postal codes as a proxy for personal economic status. Multivariable logistic regression models were then used to primarily assess the relationship between SES and surgical complications within one year of index THA.ResultsOf 111,359 patients who underwent elective primary THA, those in the lower SES groups had statistically significantly more comorbidities and statistically significantly more postoperative complications. While there was no increase in readmission rates within 90 days, there was a statistically significant difference in the primary and secondary outcomes including all revisions due (with a subset of deep wound infection and dislocation). Results showed that those in the higher SES groups had proportionally more cases performed than those in lower groups. Compared to the highest SES quintile, the lower groups had 61% of the number of hip arthroplasties performed.ConclusionPatients in lower socioeconomic groups have more comorbidities, fewer absolute number of cases performed, have their procedures performed in lower-volume centres, and ultimately have higher rates of complications. This lack of access and higher rates of complications is a “double hit” to those in lower SES groups, and indicates that we should be concentrating efforts to improve access to surgeons and hospitals where arthroplasty is routinely performed in high numbers. Even in a universal healthcare system where there are no penalties for complications such as readmission, there seems to be an inequality in the access to THA. Cite this article: Bone Joint J 2022;104-B(5):589–597.