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Nevin Manimala Statistics

Bone marrow lesions in the knee are associated with meniscal lesions and cartilage pathologies according to the six-letter system

Knee Surg Sports Traumatol Arthrosc. 2022 Aug 22. doi: 10.1007/s00167-022-07089-x. Online ahead of print.

ABSTRACT

PURPOSE: This study aims to find a correlation between bone marrow lesions (BMLs) in knee MRI and pathologies of joint structures. In addition, according to the six-letter system classification, the authors analyzed a potential association between the area affected by BMLs and the specific type of joint lesion.

METHODS: The authors screened all the knee MRIs performed in the investigation center between 2017 and 2018 to identify the presence of BMLs. The lesions were then categorized following the “six-letter system”. The authors searched the presence of associated meniscal, chondral or ligamentous lesions. Finally, the authors researched a correlation between the lesion type described by the six-letter system classification and the associated lesions.

RESULTS: MRI exams of 4000 patients were studied, identifying 666 BMLs. The associated lesions were collected for all patients, resulting in an overall prevalence of related lesions in almost 90% of patients. The authors found a statistical significance for type TLD (Tibia-Lateral-Articular) and ACL rupture. The study suggests a strong positive correlation between type E (Edge) and meniscal fracture or extrusion.

CONCLUSION: BMLs in the knee are associated in 90% of cases with a radiological sign of related injury to the joint structures. The six-letter system of BMLs type TLD can be considered a sign of ACL rupture and type E as a high suspicious sign for meniscal extrusion. Those very typical BML patterns can help the clinician in the diagnosis of ACL tears and meniscal extrusion. Furthermore, the presence of a BML must be, for the clinician, a high suspicious sign of joint-related injuries.

LEVEL OF EVIDENCE: Level 1.

PMID:35994077 | DOI:10.1007/s00167-022-07089-x

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Nevin Manimala Statistics

Spinal Post-traumatic Deformity: An International Expert Survey Among AO Spine Knowledge Forum Members

Clin Spine Surg. 2022 Aug 22. doi: 10.1097/BSD.0000000000001376. Online ahead of print.

ABSTRACT

STUDY DESIGN: Survey among spine experts.

OBJECTIVE: To investigate the different views and opinions of clinically relevant spinal post-traumatic deformity (SPTD).

SUMMARY OF BACKGROUND DATA: There is no clear definition of clinically relevant SPTD. This leads to a wide variation in characteristics used for diagnosis and treatment indications of SPTD. To understand the current concepts of SPTD a survey was conducted among spine trauma surgeons.

METHODS: Members of the AO Spine Knowledge Forum Trauma participated in an online survey. The survey was divided in 4 domains: Demographics, criteria to define SPTD, risk factors, and management. The data were collected anonymously and analyzed using descriptive statistics, absolute, and relative frequencies. Consensus on dichotomous outcomes was set to 80% of agreement.

RESULTS: Fifteen members with extensive experience in treatment of spinal trauma participated, representing the 5 AO Spine Regions. Back pain was the only criterion for definition of SPTD with complete agreement. Consensus (≥80%) was reached for kyphotic angulation outside normative ranges and impaired function. Eighty-seven percent and 100% agreed that a full-spine conventional radiograph was necessary in diagnosing and treating SPTD, respectively. The “missed B-type injury” was rated at most important by all but 1 participant. There was no agreement on other risk factors leading to clinically relevant SPTD. Concerning the management, all participants agreed that an asymptomatic patient should not undergo surgical treatment and that neurological deficit is an absolute surgical indication. For most of the participants the preferred surgical treatment of acute injury in all spine regions but the subaxial region is posterior fixation.

CONCLUSION: Some consensus exists among leading experts in the field of spine trauma care concerning the definition, diagnosis, risk factors, and management of SPTD. This study acts as the foundation for a Delphi study among the global spine community.

PMID:35994038 | DOI:10.1097/BSD.0000000000001376

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Spiritual care perceptions and empathy of Chinese nursing students: The mediating roles of spiritual well-being

Palliat Support Care. 2022 Aug 22:1-10. doi: 10.1017/S1478951522001134. Online ahead of print.

ABSTRACT

OBJECTIVE: To investigate spiritual care perceptions, spiritual well-being, and empathy, examine the correlations among spiritual care perceptions, spiritual well-being, and empathy, and explore the mediating role of spiritual well-being between other two variables of Chinese nursing students.

METHODS: A cross-sectional design was implemented, and the Strengthening the Reporting of Observational Studies in Epidemiology (STROBE) Checklist was used to ensure quality reporting of the study. A cluster sample of 2,718 nursing students was selected from 7 universities and colleges in China. The demographic characteristics questionnaire, the Chinese Version of the Spiritual Care-Giving Scale (C-SCGS), the Spiritual Health Scale Short Form (SHS-SF), and the Jefferson Scale of Physician Empathy-Nursing Student (JSPE-NS) were used. Descriptive statistics, correlation, and process plug-in mediation effect analyses were used to analyze the data.

RESULTS: The total score of spiritual care perceptions, spiritual well-being, and empathy were 173.83 ± 25.62, 98.74 ± 12.87, and 105.04 ± 21.34, respectively. Spiritual care perceptions were positively correlated with spiritual well-being (r = 0.617, p < 0.01) and empathy (r = 0.528, p < 0.01). And spiritual well-being played a partial mediating role between the other two variables (accounting for 28.1%).

SIGNIFICANCE OF RESULTS: Spiritual care perceptions, spiritual well-being, and empathy were quite moderate, which need in improving. It is suggested that nursing educators pay attention to the spiritual care education of nursing students, perfect the spiritual care education system, and take targeted measures according to nursing students’ individual personality traits and differences, improve their spiritual well-being and empathy in multiple ways, so as to improve their spiritual care perceptions and competence.

PMID:35993320 | DOI:10.1017/S1478951522001134

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Reproducibility of chestwall and heart position using surface-guided versus RPM-guided DIBH radiotherapy for left breast cancer

J Appl Clin Med Phys. 2022 Aug 22:e13755. doi: 10.1002/acm2.13755. Online ahead of print.

ABSTRACT

This study compared the reproducibility of chestwall and heart position using surface-guided versus RPM (real-time position management)-guided deep inspiration breath hold (DIBH) radiotherapy for left sided breast cancer. Forty DIBH patients under either surface-guided radiotherapy (SGRT) or RPM guidance were studied. For patients treated with tangential fields, reproducibility was measured as the displacements in central lung distance (CLD) and heart shadow to field edge distance (HFD) between pretreatment MV (megavoltage) images and planning DRRs (digitally reconstructed radiographs). For patients treated with volumetric modulated arc therapy (VMAT), sternum to isocenter (ISO) distance (StID), spine to rib edge distance (SpRD), and heart shadow to central axis (CAX) distance (HCD) between pretreatment kV images and planning DRRs were measured. These displacements were compared between SGRT and RPM-guided DIBH. In tangential patients, the mean absolute displacements of SGRT versus RPM guidance were 0.19 versus 0.23 cm in CLD, and 0.33 versus 0.62 cm in HFD. With respect to planning DRR, heart appeared closer to the field edge by 0.04 cm with surface imaging versus 0.62 cm with RPM. In VMAT patients, the displacements of surface imaging versus RPM guidance were 0.21 versus 0.15 cm in StID, 0.24 versus 0.19 cm in SpRD, and 0.72 versus 0.41 cm in HCD. Heart appeared 0.41 cm further away from CAX with surface imaging, whereas 0.10 cm closer to field CAX with RPM. None of the differences between surface imaging and RPM guidance was statistically significant. In conclusion, the displacements of chestwall were small and were comparable with SGRT- or RPM-guided DIBH. The position deviations of heart were larger than those of chestwall with SGRT or RPM. Although none of the differences between SGRT and RPM guidance were statistically significant, there was a trend that the position deviations of heart were smaller and more favorable with SGRT than with RPM guidance in tangential patients.

PMID:35993318 | DOI:10.1002/acm2.13755

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Nevin Manimala Statistics

Demographic drivers of the growth of the number of Aboriginal and Torres Strait Islander people living with dementia, 2016-2051

Australas J Ageing. 2022 Aug 22. doi: 10.1111/ajag.13116. Online ahead of print.

ABSTRACT

OBJECTIVE: To examine the demographic drivers that contribute to the future growth in the population of Aboriginal and Torres Strait Islander peoples living with dementia in Australia.

METHODS: Design: Multistate, Indigenous status, cohort component, population projection model.

SETTING: National-level, Aboriginal and Torres Strait Islander population.

DATA: Data prepared by the Australian Bureau of Statistics on births, deaths, migration and identification change. Australian Institute of Health and Welfare estimates of dementia prevalence alongside estimates from several studies.

MAJOR OUTCOME MEASURES: Number of older people living with dementia alongside a decomposition of demographic drivers of growth.

RESULTS: By 2051, the relative growth in the number of Aboriginal and Torres Strait Islander peoples aged 50+ with dementia ranges from 4½ to 5½ times (under three prevalence scenarios) its 2016 estimate. Cohort flow (the gradual movement of younger cohorts into the 50+ age group, and the depletion of older cohorts from death, over time) is a key driver of the growth in the number of older people living with dementia.

CONCLUSIONS: High growth in the number of people living with dementia poses implications for culturally appropriate care, health-care access and support for Aboriginal and Torres Strait Islander families, carers and their communities.

PMID:35993283 | DOI:10.1111/ajag.13116

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Shift to low-impact sports and recreational activities following total knee replacement

Int J Artif Organs. 2022 Aug 22:3913988221119524. doi: 10.1177/03913988221119524. Online ahead of print.

ABSTRACT

BACKGROUND: A growing number of physically active patients undergoing total knee replacement (TKR) desires to resume their preoperative activity levels and to be able to engage in sports after surgery. The purpose of this study was to assess the sporting and physical activities of patients who had undergone TKR. It was hypothesized that the majority of patients treated by TKR would have been able to return to amateur sports and recreational activity .

METHODS: Ninety-seven patients who underwent TKR between 2014 and 2016, were retrospectively reviewed. Mean age was 70.1 years (range 64-83). Average follow-up time was 4.2 years (SD: 1.7). Assessment included Knee Osteoarthritis Outcome Score (KOOS), International Knee Documentation Committee (IKDC), and Tegner activity level. Sporting and physical activities of all patients were reported. Wilcoxon’s signed ranks test was used for comparison between pre-operative and follow-up data. Significance was set at p < 0.05.

RESULTS: Both KOOS score and IKDC significantly improved after surgery (p < 0.001). No statistically significant differences were reported concerning Tegner activity level before and after surgery (p = n.s.). After surgery, a total number of 52 patients (53.6%) successfully returned to sporting and recreational activities, such as cycling, hiking, dancing and swimming. A return to activity rate of 81% of patients practicing sport before surgery was reported.

CONCLUSIONS: TKR provides a high rate of return to sport postoperatively and confirms improved subjective results and reduced pain compared to preoperative status. However, most patients returned to low-impact activities, while a significant decrease was reported for mid- and high-impact sports.

PMID:35993237 | DOI:10.1177/03913988221119524

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Nevin Manimala Statistics

Coordination variability reveals the features of the ‘independent seat’ in competitive dressage riders

Sports Biomech. 2022 Aug 22:1-16. doi: 10.1080/14763141.2022.2113118. Online ahead of print.

ABSTRACT

The rider’s ability to consistently coordinate their movements to their horse is a key determinant of performance in equestrian sport. This study investigated the inter-segmental coordination variability between the vertical displacement of a riding simulator and the pitch rotation of 28 competitive female dressage riders’ head, trunk, pelvis, and left foot, in simulated medium and extended trot. A statistical non-parametric mapping three-way repeated-measures ANOVA investigated the influence of gait, competition level and segment on coordination variability. There was a significant main effect of gait and segment (p = 0.05), however, no significant effect of competition level. In medium trot, simulator-pelvis coupling was significantly (p < 0.001) less variable than simulator-head, -trunk, and -foot couplings. Significantly greater coordination variability of simulator-head and -foot relative to the trunk and pelvis suggested that riders can maintain stability in the saddle with their trunk and pelvis while allowing greater variability of their head and foot coupling to the simulator’s vertical displacement. It is proposed that stronger coupling of the rider’s pelvis relative to their other segments is one facet of the equestrian dressage skill of the independent seat. However, greater perturbations during simulated extended trot may necessitate a decrease in the independence of the rider’s seat.

PMID:35993195 | DOI:10.1080/14763141.2022.2113118

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Improving the Antecedents of Non-Compliance to Safety Regulations Towards an Optimized Self-Regulated Construction Environment in Nigeria

Int J Occup Saf Ergon. 2022 Aug 21:1-18. doi: 10.1080/10803548.2022.2115657. Online ahead of print.

ABSTRACT

The construction industry has been plagued with safety challenges, resulting in a wide occurrence of devastating accidents and fatalities. As previous studies have attributed the persistent safety challenges in Nigeria to non-compliance to safety regulations, this study builds on the existing literature by assessing the antecedents of non-compliance to safety regulations amongst construction workers. To achieve this, the study pursued two main objectives which involved the assessment of workers’ safety attitude, and workers’ safety behavior as the antecedents of safety regulation compliance. A quantitative research approach was adopted using a questionnaire to elicit responses from randomly selected respondents. Data collected were analyzed using both descriptive and inferential statistics. Findings from the study showed relatively low levels of safety attitude and behavior amongst construction workers, which limit their ability to be comply to instituted safety regulations. Thus, improving the attitude and behavior of construction workers towards better compliance was recommended.

PMID:35993170 | DOI:10.1080/10803548.2022.2115657

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Foot dominance and ball approach angle affect whole-body instep kick kinematics in soccer players

Sports Biomech. 2022 Aug 22:1-21. doi: 10.1080/14763141.2022.2110514. Online ahead of print.

ABSTRACT

Past investigations provided limited information regarding instep kicking kinematics in soccer. It is unclear how foot dominance and ball approach angle impact whole-body kinematics and consequently the ball velocity. We aimed to analyse the effects of the ball approach angle and the foot used on the whole-body kinematics of soccer players performing an instep kick. Twenty-four soccer players performed maximal instep kicks, using the dominant and non-dominant feet, with the ball stationary or rolling from four different directions. Whole-body motion was recorded during the kicking action and kinematic time-series were extracted and resampled to 200 points equally divided into kicking and follow-through phases. 1-D statistical parametric mapping two-way ANOVA tested for the effect of ball condition and foot dominance. Ball approach angle affected most of the swinging and support limb variables and some upper body variables. Performance-related variables such as CoM, foot, and shank velocities were reduced when the ball approached posteriorly. The linear and angular velocities of the swinging limb, and CoM vertical position, were higher when kicking with dominant foot. Based on these findings, as a practical implication, coaches should vary ball approach angles and the foot used during kicking drills to improve technical effectiveness in various situations.

PMID:35993147 | DOI:10.1080/14763141.2022.2110514

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Cesarean section per se is not a risk factor for non-anatomical placenta creta

Int J Gynaecol Obstet. 2022 Aug 22. doi: 10.1002/ijgo.14415. Online ahead of print.

ABSTRACT

OBJECTIVE: To find whether mild forms of placenta creta (MPC) are more common in placentas delivered by cesarean section for non-anatomical indications than in placentas from vaginal deliveries.

METHODS: This is a retrospective clinical study. MPC was diagnosed histologically by the presence of myometrial fibers in the decidua basalis or parietalis or in direct contact with the Rohr fibrinoid or chorionic villi. After excluding 111 cases at high risk for anatomical PC, placentas from 830 consecutive cesarean deliveries (Group 1) were retrospectively statistically compared to 907 placentas from vaginal deliveries (Group 2).

RESULTS: Statistically significant differences were found in 6 independent clinical and 7 placental phenotypes: More frequent preeclampsia, abnormal fetal heart rate tracing and umbilical artery dopplers, hypercoiled umbilical cord, diffuse post uterine pattern of chronic hypoxic placental injury, and clusters of avascular or mineralized chorionic villi were found in Group 1, while preterm delivery, induction of labor and histological patterns related to stillbirth were observed in Group 2.

CONCLUSION: MPC diagnosed in placentas from cesarean sections performed for non-anatomical indications is not statistically significantly more common than in those after vaginal delivery. Therefore, MPC may feature similar diagnostic correlations and portend similar prognosis for future pregnancies.

PMID:35993138 | DOI:10.1002/ijgo.14415