ACL and meniscal injuries increase the risk of primary total knee replacement for osteoarthritis: a matched case-control study using the Clinical Practice Research Datalink (CPRD).

OBJECTIVES: The aim of this study was to investigate whether ACL injury (ACLi) or meniscal injury increases the risk of end-stage osteoarthritis (OA) resulting in total knee replacement (TKR). METHODS: A matched case-control study of all TKRs performed in the UK between January 1990 and July 2011 and recorded in the Clinical Practice Research Datalink (CPRD) was undertaken. The CPRD contains longitudinal data on approximately 3.6 million patients. Two controls were selected for each case of TKR, matched on age, sex and general practitioner location as a proxy for socioeconomic status. Individuals with inflammatory arthritis were excluded. The odds of having TKR for individuals with a CPRD-recorded ACLi were compared with those without ACLi using conditional logistic regression, after adjustment for body mass index, previous knee fracture and meniscal injury. The adjusted odds of TKR in individuals with a recorded meniscal injury compared with those without were calculated. RESULTS: After exclusion of individuals with inflammatory arthritis, there were 49 723 in the case group and 104 353 controls. 153 (0.31%) cases had a history of ACLi compared with 41 (0.04%) controls. The adjusted OR of TKR after ACLi was 6.96 (95% CI 4.73 to 10.31). 4217 (8.48%) individuals in the TKR group had a recorded meniscal injury compared with 669 (0.64%) controls. The adjusted OR of TKR after meniscal injury was 15.24 (95% CI 13.88 to 16.69). CONCLUSION: This study demonstrates that ACLi is associated with a sevenfold increased odds of TKR resulting from OA. Meniscal injury is associated with a 15-fold increase odds of TKR for OA.

Rates of knee arthroplasty in anterior cruciate ligament reconstructed patients: a longitudinal cohort study of 111,212 procedures over 20 years.

Background and purpose - Long-term rates of knee arthroplasty in patients with anterior cruciate ligament (ACL) injury who undergo ligament reconstruction (ACLr) are unclear. We determined this risk of arthroplasty through comparison with the general population.Patients and methods - All patients undergoing an ACLr in England, 1997-2017, were identified from national hospital statistics. Patients subsequently undergoing a knee arthroplasty were identified and survival analysis was performed (survival without undergoing knee arthroplasty). A Cox proportional hazards model was used to identify factors associated with knee arthroplasty. Relative risk of knee arthroplasty (total or partial) in comparison with the general population was determined.Results - 111,212 ACLr patients were eligible for analysis (mean age 29; 77% male). Overall, 0.46% (95% confidence interval [CI] 0.40-0.52) ACLr patients underwent knee arthroplasty within 5 years, 0.97% (CI 0.82-1.2) within 10 years, and 1.8% (CI 1.4-2.3) within 15 years. Knee arthroplasty risk was greater in older age groups and women. In comparison with the general population, the relative risk of undergoing arthroplasty at a younger age (at time of arthroplasty) was elevated: at 30-39 years (risk ratio [RR] 20; CI 11-35), 40-49 years (RR 7.5; CI 5.5-10), and 50-59 years (RR 2.5; CI 1.8-3.5), but not 60-69 years (RR 1.7; CI 0.93-3.2).Interpretation - Patients sustaining an ACL injury who undergo ACLr are at elevated risk of subsequent knee arthroplasty in comparison with the general population. Although the absolute rate of arthroplasty is low, the risk of arthroplasty at a younger age is particularly elevated. When the outcome of shared decision-making is ACLr, this data will help inform patients and clinicians about the long-term risk of requiring knee arthroplasty.

The impact of patient-specific instrumentation on unicompartmental knee arthroplasty: a prospective randomised controlled study.

PURPOSE: Patient-specific instrumentation (PSI) has been proposed as a means of improving surgical accuracy and ease of implantation during technically challenging procedures such as unicompartmental knee arthroplasty (UKA). The purpose of this prospective randomised controlled trial was to compare the accuracy of implantation and functional outcome of mobile-bearing medial UKAs implanted with and without PSI by experienced UKA surgeons. METHODS: Mobile-bearing medial UKAs were implanted in 43 patients using either PSI guides or conventional instrumentation. Intra-operative measurements, meniscal bearing size implanted, and post-operative radiographic analyses were performed to assess component positioning. Functional outcome was determined using the Oxford Knee Score (OKS). RESULTS: PSI guides could not be used in three cases due to concerns regarding accuracy and registration onto native anatomy, particularly on the tibial side. In general, similar component alignment and positioning was achieved using the two systems (n.s. for coronal/sagittal alignment and tibial coverage). The PSI group had greater tibial slope (p = 0.029). The control group had a higher number of optimum size meniscal bearing inserted (95 vs 52%; p = 0.001). There were no differences in OKS improvements (n.s). CONCLUSION: Component positioning for the two groups was similar for the femur but less accurate on the tibial side using PSI, often with some unnecessarily deep resections of the tibial plateau. Although PSI was comparable to conventional instrumentation based on OKS improvements at 12 months, we continue to use conventional instrumentation for UKA at our institution until further improvements to the PSI guides can be demonstrated. LEVEL OF EVIDENCE: Therapeutic, Level I.

Ectopic Salivary Gland Cyst in the Neck: Association with Congenital Plunging Ranula.

Congenital ranula is rare. We report a large, symptomatic, congenital plunging ranula associated with a salivary gland cyst in the neck. To the best of our knowledge, this is the first such reported case. Even though both the cysts had their origin from the sublingual gland, only the cervical cyst had a capsular covering. Herniation of a part of the immature sublingual gland anlage through a congenital mylohyoid defect, its separation, and subsequent maturation could explain this occurrence.

Migration of Ventriculoperitoneal Shunt into a Hernia Sac: An Unusual Complication of Ventriculoperitoneal Shunt Surgery in Children.

We report 2 cases of ventriculoperitoneal (VP) shunt migration into an inguinal hernia sac. In both cases hernia manifested itself on the right side in late infancy. We attempted to analyse the anatomical and mechanical factors leading to shunt migration as seen in the X-rays of our cases.

Herlyn-Weber-Wunderlich syndrome with ectopic ureter in prepubertal female.

We report a rare case of uterovaginal duplication in a prepubertal female. The patient also had a permeable ureter (ureter with urine passing through it) subtending a poorly functioning kidney with ectopic insertion in the obstructed hemivagina.

Neonatal Intestinal Obstruction: Etiology, Management, and Outcomes in a Tertiary Care Center.

BACKGROUND:  Intestinal obstruction in neonates remains a critical medical emergency in the field of pediatric surgery. Clinical conditions often experience a sudden deterioration in their appearance. Multiple factors contribute to unfavorable clinical outcomes in underdeveloped nations. The study was conducted to identify the etiology, management, and outcomes of neonatal intestinal obstruction at a specialized medical facility. METHODS:  This retrospective study included 168 newborns who had to be operated on in the neonatal intensive care unit between 2021 and 2023 due to intestinal obstruction. The clinical and demographic characteristics of the infants, final diagnosis, surgical complications, and mortality rate were documented. In addition, the relationship between risk factors such as birth weight, gestational age, length of surgery, and postoperative problems was evaluated. RESULTS:  The majority of neonatal intestinal obstruction occurred within seven days of birth, with 8-15 days being the second most common. Most babies were born at full term (53.57%) and weighed 2 kg or more (75%). In newborns in our region, duodenal, ileal, jejunal, and colonic atresias were found to be the most common causes of neonatal intestinal obstruction that requires surgery. The study detected 45 postoperative problems, 26.79% of the total. Out of 168 patients, twelve (7.14%) had septicemia, seven (4.17%) had anastomotic leak, seven (4.17%) had aspiration pneumonitis, and two (1.19%) needed re-exploration. Overall mortality was 10.12%, with 17 patients dying. Moreover, 119 patients (70.83%) survived without issues, while 32 (19.05%) survived with complications. CONCLUSION:  Our findings emphasize the significance of promptly diagnosing, intervening, and implementing suitable management approaches to enhance outcomes for newborns with intestinal obstruction. Furthermore, it highlights valuable perspectives for healthcare professionals in enhancing care for this specific group of patients.

Validating a global rating scale to monitor individual resident learning curves during arthroscopic knee meniscal repair.

PURPOSE: To determine whether a global rating scale (GRS) with construct validity can also be used to assess the learning curve of individual orthopaedic trainees during simulated arthroscopic knee meniscal repair. METHODS: An established arthroscopic GRS was used to evaluate the technical skill of 19 orthopaedic residents performing a standardized arthroscopic meniscal repair in a bioskills laboratory. The residents had diagnostic knee arthroscopy experience but no experience with arthroscopic meniscal repair. Residents were videotaped performing an arthroscopic meniscal repair on 12 separate occasions. Their performance was assessed by use of the GRS and motion analysis objectively measuring the time taken to complete tasks, path length of the subject's hands, and number of hand movements. One author assessed all 228 videos, whereas 2 other authors rated 34 randomly selected videos, testing the interobserver reliability of the GRS. The validity of the GRS was tested against the motion analysis. RESULTS: Objective assessment with motion analysis defined the surgeon's learning curve, showing significant improvement by each subject over 12 episodes (P < .0001). The GRS also showed a similar learning curve with significant improvements in performance (P < .0001). The median GRS score improved from 15 of 34 (interquartile range, 14 to 17) at baseline to 22 of 34 (interquartile range, 19 to 23) in the final period. There was a moderate correlation (P < .0001, Spearman test) between the GRS and motion analysis parameters (r = -0.58 for time, r = -0.58 for path length, and r = -0.51 for hand movements). The inter-rater reliability among 3 trained assessors using the GRS was excellent (Cronbach α = 0.88). CONCLUSIONS: When compared with motion analysis, an established arthroscopic GRS, with construct validity, also offers a moderately feasible method to monitor the learning curve of individual residents during simulated knee meniscal repair. CLINICAL RELEVANCE: An arthroscopic GRS can be used for monitoring skill improvement during knee meniscal repair and has the potential for use as a training and assessment tool in the real operating room.

Dengue outbreaks prediction in Bangladesh perspective using distinct multilayer perceptron NN and decision tree.

Dengue fever is a disease that has been outbreak worldwide in the last few years. Dengue is a fatal disease; sometimes, it may cause life-threatening complications and even death. Dengue is considered to be one of the critical diseases which is spreading in more than 110 countries. Nearly 45,000 case reports have been found around Bangladesh in the last year. Dengue fever has become a major health hazard in Bangladesh. Hence, early detection would mitigate major casualties of Dengue disease. Distinct studies have been performed concerning Dengue disease; however, no effective study, particularly from Bangladesh's perspective, it seemed that reveals Dengue outbreaks prediction method. In this scenario, this research work aims to analyse the Dengue disease and build an apposite model to predict dengue outbreaks. This paper also aims to find the best technique to early predicts Dengue disease. The real-time data of the patients admitted to different hospitals in Bangladesh is accumulated to achieve the goal of the current research. Then different multilayer perceptron neural networks and a Decision tree are used for Dengue outbreaks prediction. Twenty-five parameters are analysed to find these parameters' infection rates in this work. A comparative study of the developed models' performances is also accomplished to obtain a better Dengue outbreaks prediction model. The results evidence that the Levenberg-Marquardt is the best technique with 97.3% accuracy and 2.7% error in Dengue disease prediction. On the other hand, the Decision tree may have the second choice to assess Dengue disease.

Mitigation of Airborne Contaminant Spread through Simple Interventions in an Occupied Single-Family Home.

Historically, reducing aerosol-based transmission of respired viruses in indoor environments has been of importance for controlling influenza viruses and common-cold rhinoviruses. The present public health emergency associated with SARS-CoV-2 makes this topic critically important. Yet to be tested is the potential effectiveness of simple interventions that create an isolation zone (IZ) for a suspected/confirmed sick or sensitive person requiring quarantine. The intent in existing homes is to find a practical means to mitigate exposure to airborne contaminants. In creating an IZ in an occupied single-family home in the study, four simple strategies were tested. The test configurations were: (1) IZ windows closed with IZ bathroom exhaust ventilation fan off, (2) IZ windows closed with IZ exhaust fan on, (3) IZ window open with IZ exhaust fan off, and (4) IZ window open with IZ exhaust fan on. Incense-generated fine particulate matter (PM2.5) was used as a marker for virus transmission. The measured transfer of PM2.5 from the IZ into the main zone (MZ) of the house enabled us to determine the relative effectiveness of four containment strategies. Collectively, the data from pressure differential (across zones) and PM2.5 measurements suggested that the best containment strategy was achieved through continuously operating the bathroom exhaust fan while keeping the windows closed in the IZ (configuration 2). Interventions using open windows were found to be less reliable, due to variability in wind speed and direction, resulting in an unpredictable and sometimes detrimental pressure differential in the IZ with reference to MZ. Our findings strongly suggest a simple IZ exhaust ventilation strategy has the potential for mitigating the risk from the airborne spread of contaminants, such as SARS-CoV-2.

Study of pelvic floor and sphincter muscles in congenital pouch colon with the help of three-dimensional CT scan.

INTRODUCTION: Congenital pouch colon (CPC) is a pouch-like dilatation of shortened colon associated with anorectal malformation (ARM). The disease is prevalent in northern India. Postoperatively, the continence results are not as good as in other ARMs and there is higher incidence of incontinence and perineal soiling in these patients. The present study aimed to evaluate the pelvic floor and sphincter muscle characteristics in patients of CPC with the help of 64-slice computerized tomography with three-dimensional (3D) volumetric reconstructions of images, thus, to know the overall quality of these muscles in the patients. MATERIALS AND METHODS: The study was conducted in patients admitted over a period of July 2007 to November 2008 in our department. Totally, eight patients of CPC were subjected to 64-slice CT with three-dimensional reconstructions of images and different parameters such as quality of pelvic floor muscles, configuration of vertical and parasagittal fibres, shape and thickness of sphincter muscle complex, attenuation values of sphincters were studied. RESULTS: The 3D reconstructed images of pelvis in patients of CPC showed a well-developed pelvic floor and sphincter muscle complex. The length of the parasagittal fibres, transverse width of the vertical fibres and CT attenuation values of these structures with overall muscle quality were found to be good in these patients. CONCLUSION: In cases of CPC, the pelvic floor muscles including striated muscle complex (vertical and parasagittal fibres) are well developed. Higher rates of incontinence and soiling in CPC are not because of poorly developed pelvic floor and sphincter muscles. Three-dimensional CT can also provide important anatomical information that can help the operating surgeon while performing surgery.

High mortality following revision hip arthroplasty for periprosthetic femoral fracture.

AIMS: To determine mortality risk after first revision total hip arthroplasty (THA) for periprosthetic femoral fracture (PFF), and to compare this to mortality risk after primary and first revision THA for other common indications. METHODS: The study cohort consisted of THAs recorded in the National Joint Registry between 2003 and 2015, linked to national mortality data. First revision THAs for PFF, infection, dislocation, and aseptic loosening were identified. We used a flexible parametric model to estimate the cumulative incidence function of death at 90 days, one year, and five years following first revision THA and primary THA, in the presence of further revision as a competing risk. Analysis covariates were age, sex, and American Society of Anesthesiologists (ASA) grade. RESULTS: A total of 675,078 primary and 74,223 first revision THAs were included (of which 6,131 were performed for PFF). Following revision for PFF, mortality ranged from 9% at 90 days, 21% at one year, and 60% at five years in the highest risk group (males, ≥ 75 years, ASA ≥ 3) to 0.6%, 1.4%, and 5.5%, respectively, for the lowest risk group (females, < 75 years, ASA ≤ 2). Mortality was greater in all groups following first revision THA for PFF than for primary THA. Compared to mortality risk after first revision THA for infection, dislocation, or aseptic loosening, revision for PFF was associated with higher five-year mortality in all groups except males < 75 years with an ASA ≤ 2. CONCLUSION: Mortality risk after revision THA for PFF is high, reaching 60% at five years in the highest risk patient group. In comparison to other common indications for revision, PFF demonstrated the highest overall risk of mortality at five years. These estimates can be used in the surgical decision-making process and when counselling patients and carers regarding surgical risk. Cite this article: Bone Joint J 2020;102-B(12):1670-1674.

A Localized Scaffold for cGMP Increase Is Required for Apical Dendrite Development.

Studies in cultured neurons have established that axon specification instructs neuronal polarization and is necessary for dendrite development. However, dendrite formation in vivo occurs when axon formation is prevented. The mechanisms promoting dendrite development remain elusive. We find that apical dendrite development is directed by a localized cyclic guanosine monophosphate (cGMP)-synthesizing complex. We show that the scaffolding protein Scribble associates with cGMP-synthesizing enzymes soluble-guanylate-cyclase (sGC) and neuronal nitric oxide synthase (nNOS). The Scribble scaffold is preferentially localized to and mediates cGMP increase in dendrites. These events are regulated by kinesin KifC2. Knockdown of Scribble, sGC-ß1, or KifC2 or disrupting their associations prevents cGMP increase in dendrites and causes severe defects in apical dendrite development. Local cGMP elevation or sGC expression rescues the effects of Scribble knockdown on dendrite development, indicating that Scribble is an upstream regulator of cGMP. During neuronal polarization, dendrite development is directed by the Scribble scaffold that might link extracellular cues to localized cGMP increase.

Variant brain-derived neurotrophic factor (Val66Met) alters adult olfactory bulb neurogenesis and spontaneous olfactory discrimination.

Neurogenesis, the division, migration, and differentiation of new neurons, occurs throughout life. Brain derived neurotrophic factor (BDNF) has been identified as a potential signaling molecule regulating neurogenesis in the subventricular zone (SVZ), but its functional consequences in vivo have not been well defined. We report marked and unexpected deficits in survival but not proliferation of newly born cells of adult knock-in mice containing a variant form of BDNF [a valine (Val) to methionine (Met) substitution at position 66 in the prodomain of BDNF (Val66Met)], a genetic mutation shown to lead to a selective impairment in activity-dependent BDNF secretion. Utilizing knock-out mouse lines, we identified BDNF and tyrosine receptor kinase B (TrkB) as the critical molecules for the observed impairments in neurogenesis, with p75 knock-out mice showing no effect on cell proliferation or survival. We then localized the activated form of TrkB to a discrete population of cells, type A migrating neuroblasts, and demonstrate a decrease in TrkB phosphorylation in the SVZ of Val66Met mutant mice. With these findings, we identify TrkB signaling, potentially through activity dependent release of BDNF, as a critical step in the survival of migrating neuroblasts. Utilizing a behavioral task shown to be sensitive to disruptions in olfactory bulb neurogenesis, we identified specific impairments in spontaneous olfactory discrimination, but not general olfactory sensitivity or habituation to olfactory stimuli in BDNF mutant mice. Through these observations, we have identified novel links between genetic variant BDNF and adult neurogenesis in vivo, which may contribute to significant impairments in olfactory function.

Presentation of high ano-rectal malformation beyond neonatal period.

Anorectal malformation is one among the common congenital malformations usually encountered. The babies usually present early after birth with complaints of missing anal opening, or abnormally placed anal opening, but some patients have presented beyond the early newborn period without recognition of their anorectal malformation. We are presenting a case of a male child with high ARM, who unusually presented first at the age of 45 days, without gross abdominal distension or septicaemia.

Modified method of primary esophageal anastomosis with improved outcome in cases of esophageal atresia with tracheoesophageal fistula.

Survival rates for infants who have esophageal atresia (EA) with or without fistula (TEF) have improved dramatically in the past 50 years. Despite excellent long-term survival for patients with esophageal atresia with tracheoesophageal fistula (EA-TEF), many significant complications can occur. Anastomotic leak at the esophagoesophagostomy site is one such problem resulting in considerable morbidity and mortality in these patients. The methods of esophageal anastomosis for long period has remained the simple end to end anastomosis of esophageal ends with various modifications described from time to time. The present study aims to study the effect on the early postoperative complications, following horizontal mattress suture technique on the primary esophageal anastomosis in cases of EA-TEF. A total of 32 patients with EA-TEF, were operated by our technique during a period of 1 year (2007-2008). The results were compared with the patients (n = 66), who were operated by the traditional simple technique during the same period. Among those patients in whom the esophageal anastomosis was done by horizontal mattress suture, only one had major anastomotic leak, while two had minor anastomotic leaks, as compared to six and nine cases correspondingly in other patients in whom anastomosis was done by simple technique. There was single mortality. We propose that, the utilization of our technique of horizontal mattress suture in primary anastomosis of esophagus in cases of EA-TEF significantly reduces the risk of anastomotic leaks and subsequent morbidity and mortality.

Traumatic diaphragmatic injuries in children: do they really mark the severity of injury? Our experience.

PURPOSE: Diaphragmatic injuries have been reported to be a predictor of serious associated injuries in trauma and a marker of severity. Because of its rarity in children, the diagnosis is often delayed for months and years, due to overshadowing injuries. Perhaps due to the elasticity of their tissues, traumatic diaphragmatic rupture is uncommon in children. The problem remains a challenging clinical entity and the description of such type of injuries in children remains scarce in the literature. Most of the cases are described along with associated injuries; presence of isolated diaphragmatic injuries in children is unusual. The present study highlights the presentation, diagnosis and management of all of the cases admitted with traumatic diaphragmatic injuries in a single pediatric surgical center. METHODS: We retrospectively studied eight children admitted to our center with a diagnosis of diaphragmatic injury following trauma during a period of 5 years (2003-2008). Relevant information regarding the mode and pattern of injuries were noted in all cases. Type of injury and surgical intervention and outcome of patients were evaluated. RESULTS: Mean age of presentation was 6.8 years (range 2-12 years). Seven patients were males, while one patient was female. Seven patients had a history of blunt trauma abdomen some time back. Only one patient had acute presentation with respiratory distress following road traffic accident, rest of the patients had no associated grievous injury at the time of presentation. One patient presented with features of acute obstruction. All patients could be diagnosed preoperatively and surgical intervention was performed in all cases. The patients recovered well and there was no mortality. CONCLUSION: Diaphragmatic injuries in children are rare. They are usually associated with other severe injuries; however, isolated diaphragmatic injuries occur more frequently in children than adults. A high index of clinical suspicion supported by prompt radiological tests is needed to diagnose these injuries in patients who otherwise have no associated grievous injuries.

Neonatal pneumoperitoneum: a critical appraisal of its causes and subsequent management from a developing country.

BACKGROUND: The diagnosis and management of neonatal pneumoperitoneum revolves around necrotizing enterocolitis (NEC) in most of the published literature. Although NEC remains the major cause of pneumoperitoneum in a neonate, there are several other causes leading to free air in the peritoneal cavity. A number of case reports have appeared describing pneumoperitoneum in a newborn due to rupture of one particular organ, but there have been only few collective reviews on the subject. The present study shares the experience with neonates admitted with a diagnosis of pneumoperitoneum in a pediatric surgical center of a developing country. The various causes of pneumoperitoneum in a newborn, their management and subsequent outcome are described. MATERIALS AND METHODS: The study was conducted in the Department of Pediatric Surgery, CSMMU (upgraded King Georges Medical College), Lucknow, India. All the neonates admitted with a diagnosis of pneumoperitoneum during the period of last 3 years (2005-2008) were retrospectively analyzed. Other neonatal admissions were also retrieved for the same period. Free air was confirmed by erect abdominal X-ray or lateral decubitus films in certain cases. The data sheets were analyzed regarding age of presentation, cause of bowel perforation, management offered and subsequent outcome achieved. All patients of NEC without evidence of perforation were not included in the study (n = 21). RESULTS: Out of total 537 neonatal admissions, 89 (16.5%) neonates were admitted with a diagnosis of pneumoperitoneum. There were 79 (88.7%) males and only 10 (11.6%) female neonates admitted during the study period. All of them had evidence of pneumoperitoneum at the time of admission. The age at presentation ranged from 4 to 32 days. NEC remained the single major cause of pneumoperitoneum in the newborn; however, in 44 (49.4%) patients the cause was not related to NEC. Perforated pouch colon, isolated colonic perforations, caecal perforations, gastric and duodenal perforations were the main causes of pneumoperitoneum not related to NEC. There were seven patients in whom no cause of pneumoperitoneum could be ascertained. The treatment was individualized according to the presentation. Most of the NEC-related perforations were managed by peritoneal drains. Laparotomy was done in rest of the patients. Three patients were managed conservatively. Overall, 19 (21.6%) patients expired. Most of those expired were of low birth weight with NEC and congenital pouch colon with perforation. CONCLUSION: Neonatal pneumoperitoneum remains a surgical emergency and outcome can be lethal if the problem is not addressed early. NEC remains the major cause; however, there are several other important causes of isolated gastrointestinal perforations leading to neonatal pneumoperitoneum. The management should be individualized in these patients and the outcome largely depends on the early recognition of the condition.

Surgical Stabilization Improves 30-day Mortality in Patients With Traumatic Flail Chest: A Comparative Case Series at a Major Trauma Center.

OBJECTIVES: To evaluate the outcomes including early mortality after surgical rib fixation using a locking plate system as part of a newly introduced chest trauma pathway. DESIGN: Prospective cohort study with retrospective case-controlled matching with a minimum of 1-year follow-up. SETTING: Regional Level 1 trauma center. PATIENTS/PARTICIPANTS: Consecutive patients undergoing surgical rib fixation were prospectively recruited over a 3-year period (56 patients) and matched to similar patients managed nonoperatively (89 patients) using our local trauma registry. Matching was based on injury severity scores and patient demographics. INTERVENTION: Surgical rib fixation with locking plates. MAIN OUTCOME MEASUREMENTS: The primary outcome measure was 30-day mortality with secondary outcomes of hospital length of stay, intensive care unit length of stay, and patient-reported outcome measures including quality of life (EuroQol-EQ-5D-5L). Official causes of death were obtained from the coroner including postmortem results. RESULTS: There was a significant reduction in 30-day mortality in the fixed patients with 1.8% (1/56) compared to 12.4% (11/89) of the nonfixed patients (P = 0.03). This difference remained significant after further exclusion of other nonsurvivable injuries (P = 0.046). Although hospital length of stay was significantly longer in the fixed group, there was no difference on multivariable analysis. Other secondary outcomes were comparable between the groups with no significant differences in any patient-reported measures. CONCLUSIONS: Mortality was significantly lower in patients who underwent rib stabilization. Quality of life and other patient-reported measures were similar, demonstrating no evidence of detrimental longer-term effects of rib stabilization. LEVEL OF EVIDENCE: Therapeutic Level III. See Instructions for Authors for a complete description of levels of evidence.

Registration and Outcome-Reporting Bias in Randomized Controlled Trials of Distal Radial Fracture Treatment.

BACKGROUND: The purpose of the present study was to systematically evaluate the completeness of trial registration and the extent of outcome-reporting bias in modern randomized controlled trials (RCTs) relating to the treatment of distal radial fracture. METHODS: With use of 4 databases (PubMed, Cochrane CENTRAL, Embase, and PEDro), this systematic review identified all RCTs of distal radial fracture treatment published from January 1, 2010, to December 31, 2015. We independently determined the registration status of these trials in a public trial registry and compared the characteristics of registered and non-registered trials. We assessed the quality and consistency of primary outcome measure (POM) reporting between the registration data and the final published studies. RESULTS: Ninety studies met the inclusion criteria. Of those, only 28 (31%) were registered, and only 3 (3%) were "appropriately registered" (i.e., prospectively registered and identifying and fully describing the POM). Registered trials had larger sample sizes and were more likely to be multicenter, to report funding sources, and to be published in higher-impact-factor journals. Sixteen (18%) of the 90 registered RCTs named a POM in the registry; 7 (44%) of those 16 registered RCTs stated a different POM, an additional POM, or no POM at all in the final publication than was stated in the registry data. Additionally, 13 (81%) of those 16 registered RCTs had discrepancies in the time point reported for the POM. CONCLUSIONS: In an attempt to address publication and outcome-reporting bias, prospective trial registration in a public registry has been deemed a condition for publication by the International Committee of Medical Journal Editors (ICMJE) since 2005. This study shows poor registration rates as well as inconsistencies in the reporting of POMs of recent trials relating to the treatment of distal radial fracture, one of the most common and most investigated injuries in orthopaedic practice. CLINICAL RELEVANCE: The problems of registration and outcome-reporting bias in RCTs are important to highlight and address, and to find a solution will require the cooperation of researchers, reviewers, and journal editors. Increasing the transparency and consistency of reporting will help to increase the quality of research, which can impact patient care through evidence-based guidelines.