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Nevin Manimala Statistics

A novel way of quantifying bone defect in primary total knee replacements using plain radiographs

J Pak Med Assoc. 2023 Jan;73(1):157-161. doi: 10.47391/JPMA.2075.

ABSTRACT

Bone defect assessment in primary advanced knee arthritis can present a challenge for the surgeon and lead to unfavourable outcomes if not adequately determined during preoperative planning. The aim of this study was to introduce a new, simple and quick way to assess and quantify bone defect using short film radiographs and utilising it to choose the total knee prosthesis. This is a prospective case series of patients who underwent TKA (Total Knee Arthroplasty) using various types of prostheses. Three different angles – Tibiofemoral angle, MPTA (medial proximal tibial angle), and JLCA (joint line convergence angle) – were measured preoperatively to evaluate limb alignment, placement of the tibial, and femoral components of total knee prosthesis. Postoperatively roentgenographic index introduced by Lotke et al was used to assess our preoperative methodology. The American knee society score was used pre- and postoperatively up to one year. A total of eight knees of six patients were analysed (four males, two females). The mean age of the patients was 57.75±5.701 years. All the knees were in varying degrees of varus deformity preoperatively. The accuracy of the preoperatively used radiological angles was analysed by postoperative measurement of tibiofemoral angle (d), tibial anatomical axis (b) and femoral anatomical axis (a), and Roentgenographic index as suggested by Lotke et al. Postoperatively, all the knees were in valgus with tibiofemoral angle (d) 6.50±0.926, tibial component alignment (b) mean was 89±1.195, and femoral component alignment (a) mean was 5.13±0.991 valgus. Mean roentgenographic index was 89.38±3.292. American knee society score improved at one-year follow-up postoperatively and was statistically significant with p<0.001. In this study, a new classification for bone defects in primary arthritic knees by utilising simple plain radiograph short films and as a guide for implant selection is proposed.

PMID:36842029 | DOI:10.47391/JPMA.2075

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Nevin Manimala Statistics

Comparison of effects of manual physical therapy and exercise therapy for patients with Temporomandibular disorders

J Pak Med Assoc. 2023 Jan;73(1):129-130. doi: 10.47391/JPMA.3594.

ABSTRACT

The term temporomandibular disorder is used for pain and dysfunction at the temporomandibular joint. Manual therapy or exercise therapy has proven to be an effective measure for pain relief. The purpose of this study was to compare the effectiveness of manual therapy and exercise therapy in temporomandibular disorders. A quasi-experimental study was conducted from June 30, 2020 to December 30, 2020 in Al-Sheikh teaching hospital, Sialkot, Pakistan. A convenient sample of 24 patients was involved in the study. Lottery method was used to randomise the patients in either the Manual Therapy Group or Exercise Therapy Group. The participants were assessed before and after the intervention through Numeric Pain Rating Scale (NPRS) for pain, Patient-Specific Functional Scale (PSFS) for function, Fonesca Amnestic Index (FAI) for the severity of condition, and Millimetre Mouth Opening (MMO) for ranges. The manual therapy group showed a statistically significant difference in pre- and post-treatment NPRS, PSFS, FAI and MMO (p< 0.0001). Manual physical therapy is more effective to improve pain, ROM, function, and severity in temporomandibular disorders.

PMID:36842021 | DOI:10.47391/JPMA.3594

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Nevin Manimala Statistics

Effect of physical therapy treatment in infants treated for congenital muscular torticollis – a narrative review

J Pak Med Assoc. 2023 Jan;73(1):111-116. doi: 10.47391/JPMA.3852.

ABSTRACT

Congenital muscular torticollis is a problem that arises at birth or immediately after birth in which the sternocleidomastoid muscle is shortened on the afflicted side, leading to an ipsilateral rotated of the head and a contralateral rotation of the face and jaw. To determine the effectiveness of physical therapy treatment in infants treated for congenital muscular torticollis, relevant articles published between 2011 and 2020 were located using electronic databases. A total of 9 studies out of 24 potentially relevant articles were reviewed. All studies were randomised controlled trials with 6-8 score on the Physiotherapy Evidence Database scale (Pedro scale) which showed high quality of methodology. The studies typically found significant statistical effects in the management of congenital muscular torticollis. Additionally, most of the studies reported increased adherence to exercise as another essential advantage. Conservative physical therapy management showed positive outcomes, and early physiotherapy referral showed significant reduction in treatment duration.

PMID:36842018 | DOI:10.47391/JPMA.3852

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Anatomical aberration of palmaris longus agenesis muscle through clinical examination in relation to gender and hand dominance

J Pak Med Assoc. 2023 Jan;73(1):74-77. doi: 10.47391/JPMA.6251.

ABSTRACT

OBJECTIVE: To determine the frequency of agenesis of palmaris longus muscle and its association with gender and hand dominance.

METHODS: The cross-sectional descriptive study was conducted at the Bahria University Medical and Dental College, Karachi, from March 2021 to November 2021, and comprised medical students of either gender from 1st, 2nd and 3rd year of studies. Clinical examination of palmaris longus was done by using the classic Schaeffer’s test, and it was confirmed using the Thompson’s test. The agenesis of palmaris longus muscle and its association with gender and hand dominance was also tested. Data was analysed using SPSS 23.

RESULTS: Of the 200 participants, 114(57%) were female and 86(43%) were male. The overall age range was 18-23 years. Of the total, 195(97.5%) subjects were right hand dominant and 5(2.5%) were left hand dominant. Agenesis was found in 67(33.5%) subjects with no significant difference in terms of gender or hand dominance (p>0.05). Statistically significant difference (p=0.01) was found related to bilateral agenesis.

CONCLUSIONS: Bilateral agenesis was found significantly more in females compared to the males, while palmaris longus agenesis and hand dominance had no significant association.

PMID:36842011 | DOI:10.47391/JPMA.6251

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Nevin Manimala Statistics

Diagnostic accuracy of different cut-off values of adenosine deaminase levels in tuberculous pleural effusion

J Pak Med Assoc. 2023 Jan;73(1):13-16. doi: 10.47391/JPMA.4773.

ABSTRACT

OBJECTIVES: To assess the diagnostic accuracy of different cut-off values of pleural fluid adenosine deaminase levels as a diagnostic method for tuberculous pleural effusion.

METHODS: The prospective study was conducted from 2014 to 2016 at the Aga Khan University Hospital, Karachi, and comprised pleural fluid samples of adult patients with and without tuberculosis which were tested for adenosine deaminase levels, and divided into tuberculosis group A and non-tuberculosis group B. Sensitivity, specificity, negative predictive value and positive predictive value were calculated using different cut-offs. Data was analysed using IBM SPSS (Statistical Package for Social Sciences) version 21.0 (IBM Corp., Armonk, NY).

RESULTS: Of 155 patients, 46(29.7%) had tuberculosis; 30(65.2%) males and 16(34.8%) females. Those who did not have tuberculosis were 109(70.3%); 69(63.3%) males and 40(36.7%) females. The adenosine deaminase levels were elevated in group A compared to group B (p<0.001). The cut-off of 30U/L showed the highest sensitivity (71.7%) and negative predictive value (87.4%), and a specificity of 82.6%. The cut-off of 50U/L showed the highest specificity (89.9%) with sensitivity 52.2%, and the cut-off of 40U/L showed the highest positive predictive value of 68.9% with sensitivity 67.4% and specificity 87.2%.

CONCLUSIONS: Pleural fluid adenosine deaminase testing for diagnosing tuberculosis pleuritis revealed highest sensitivity and moderate specificity for cut-off value of 30U/L.

PMID:36841999 | DOI:10.47391/JPMA.4773

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Nevin Manimala Statistics

Comprehensive characterization of amino acids and water-soluble vitamins in a pentylenetetrazole-induced seizures rat model

J Sep Sci. 2023 Feb 26:e2201004. doi: 10.1002/jssc.202201004. Online ahead of print.

ABSTRACT

Epilepsy is a complex neurological disease characterized by spontaneous recurrent seizures that affects around 1% of the global population. Despite the significant progress in the mechanisms of epileptogenesis, there is still about 60% of cases in which the cause is unknown. Thus, revealing the molecular mechanisms of epileptogenesis will greatly improve the development of epilepsy treatment. Since comprehensive characterization of amino acids and water-soluble vitamins is important in understanding the underlying mechanisms of epilepsy or seizures, we developed two liquid chromatography-tandem mass spectrometry methods to quantify 17 water-soluble vitamins and 46 amino acids and applied them to our pentylenetetrazole-induced kindling rat model. All water-soluble vitamins were detected with a linearity of r > 0.992 and limits of quantitation between 0.1 and 5 ng/ml except for nicotinic acid. For amino acids, the linearities obtained were good with correlation coefficients higher than 0.99, and matrix effects were between 85.3 and 110%. To handle the multidimensional data more effectively, multivariate statistical analysis approaches used in non-targeted metabolomics were creatively exploited in the visualization, interpretation, and exploration of the results. This article is protected by copyright. All rights reserved.

PMID:36841992 | DOI:10.1002/jssc.202201004

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Hemiarthroplasty for Hip Fractures: Posterior or Direct Lateral Approach? Advantages and Disadvantages

Isr Med Assoc J. 2023 Feb;25(2):91-95.

ABSTRACT

BACKGROUND: Several approaches are used to access the hip joint; most common are the direct lateral and posterior. Little consensus exists on which to use when treating hip fractures.

OBJECTIVES: To compare short-term complications, postoperative ambulation, and patient-reported outcome measures (PROMS) of direct lateral vs. posterior approaches in hemiarthroplasty for acute hip fractures.

METHODS: We conducted a retrospective clinical trial with 260 patients who underwent bipolar hemiarthroplasty in the direct lateral or posterior approach (166 and 94, respectively) between January 2017 and December 2018. The clinical data included short-term complications: prosthetic dislocation, periprosthetic fractures, and infection. Postoperative ambulation was collected 6 weeks postoperatively; PROMS were collected for 173 patients at 2 years follow-up.

RESULTS: There were six dislocations overall, average time to dislocation was 22 days postoperative (range 4-34). Five dislocations were after the posterior approach (5.3%) and one after direct lateral (0.6%) (P = 0.01). At 6 weeks follow-up, inability to walk was found in 16.9% of the direct lateral group and 6.4% of the posterior approach group (P = 0.02). In the posterior approach group, 76% could walk more than 20 meters; only half of the direct lateral group could (P = 0.0002). At 2 years follow-up, PROMS did not show a statistically significant difference between the groups.

CONCLUSIONS: Posterior approach for hemiarthroplasty following femoral neck fractures allows superior ambulation to the direct lateral approach only for the short-term. However, no long-term clinical advantage was found. This short-term benefit does not justify the increased dislocation rate in the posterior approach.

PMID:36841975

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Nevin Manimala Statistics

Glucose-6-Phosphate Dehydrogenase Deficiency and COVID-19 Mortality, ICU Admission, and Length of Hospitalization

Isr Med Assoc J. 2023 Feb;25(2):88-90.

ABSTRACT

BACKGROUND: The coronavirus disease 2019 (COVID-19) pandemic has severe consequences in terms of mortality and morbidity. Knowledge of factors that impact COVID-19 may be useful in the search for treatments.

OBJECTIVES: To determine the effect of glucose-6-phosphate dehydrogenase (G6PD) deficiency on morbidly and mortality associated with COVID-19.

METHODS: All patients admitted to Hadassah Hebrew University Medical Center between 01 March 2020 and 03 May 2021 with a diagnosis of COVID-19 were included. We retrospectively retrieved demographic, clinical, and laboratory data from the hospital’s electronic medical records. The main outcomes were mortality, intensive care unit (ICU) admission, and severity of COVID-19.

RESULTS: The presence of G6PD deficiency emerged as an independent protective predictor for ICU admission (odds ratio [OR] 0.258, 95% confidence interval [95%CI] 0.077-0.619, P = 0.003) and the development of critical illness (OR 0.121, 95%CI 0.005-0.545, P = 0.006). Moreover, patients with G6PD deficiency had a trend toward lower mortality rates that did not reach statistical significance (OR 0.541, 95%CI 0.225-1.088, P = 0.10).

CONCLUSIONS: Patients with G6PD deficiency were less likely to have a severe disease, had lower rates of ICU admission, and trended toward lower mortality rates.

PMID:36841974

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Nevin Manimala Statistics

Use of Multiple-Select Multiple-Choice Items in a Dental Undergraduate Curriculum: Retrospective Application of Different Scoring Methods

JMIR Med Educ. 2023 Feb 25. doi: 10.2196/43792. Online ahead of print.

ABSTRACT

BACKGROUND: Scoring and awarding credit on multiple-select items is more complex than on single-choice items. Forty-one different scoring methods were retrospectively applied to two multiple-select multiple-choice item types (Pick-N and Multiple-True-False [MTF] items) from existing exam data.

OBJECTIVE: This study aimed to calculate and compare mean scores for both item types by applying different scoring methods, and to investigate the effect of item quality on mean raw scores and the likelihood of resulting scores at or above pass-level (≥0.6).

METHODS: Items and responses from examinees (ie, marking events) were retrieved from previous examinations. Different scoring methods were retrospectively applied to the existing exam data to calculate corresponding examination scores. In addition, item quality was assessed using a validated checklist. Statistical analysis was performed using Kruskal Wallis test, Wilcoxon rank-sum test, and multiple logistic regression analysis (P<.05).

RESULTS: 1,931 marking events on 48 Pick-N items and 828 marking events on 18 MTF items were analysed. For both item types, scoring results widely differed between scoring methods (min: 0.02, max: 0.98, P<.001). Both the use of an inappropriate item type (N = 34 items) and presence of cues (N = 30 items) impacted on the scoring results: Pick-N items used inappropriately resulted in lower mean raw scores (0.88 vs 0.93, P<.001), while inappropriately used MTF items resulted in higher mean raw scores (0.88 vs 0.85, P=.001). MTF items with cues resulted in higher mean raw scores than items without cues (0.91 vs 0.8, P<.001) while mean raw scores from Pick-N items with and without cues did not differ (0.89 vs 0.90, P=.09). Item quality also impacted on the likelihood of resulting scores at or above pass-level (OR≤6.977).

CONCLUSIONS: Educators should pay attention when using multiple-select multiple-choice items and select the most appropriate item type. Different item types, scoring methods, and presence of cues are likely to impact on examinees’ scores and overall examination results.

PMID:36841970 | DOI:10.2196/43792

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Nevin Manimala Statistics

Attitudes and self-efficacy towards infection prevention and control and antibiotic stewardship among nurses: A mixed-methods study

J Clin Nurs. 2023 Feb 26. doi: 10.1111/jocn.16657. Online ahead of print.

ABSTRACT

AIMS: To gain a comprehensive understanding of nurses’ infection control practices, antibiotics stewardship attitudes and self-efficacy when caring for patients with multidrug-resistant bacterial infections in a hospital setting.

BACKGROUND: Multidrug-resistant bacteria cause a substantial health burden by complicating infections and prolonging hospital stays. Attitudes and self-efficacy can inform professional behaviour. Nurses’ attitudes and self-efficacy concerning multidrug-resistant bacteria, infection prevention and control and antibiotic stewardship are vital in keeping patients safe.

DESIGN: A descriptive and convergent mixed-methods design involving quantitative and qualitative approaches was used.

METHODS: Two hundred and seventeen nurses working in clinical practice at seven different hospital wards (i.e., general medicine, surgical, haematological and oncology) at a Norwegian university hospital were invited to participate. Data were collected in February and March 2020 via two questionnaires: the Multidrug-Resistant Bacteria Attitude Questionnaire and the General Perceived Self-Efficacy Scale (n = 131) and four focus group interviews (n = 22). The data were analysed using descriptive statistics and systematic text condensation.

RESULTS: Most nurses showed moderate knowledge, adequate behavioural intentions towards infection prevention and antibiotic stewardship, and high self-efficacy. However, they reported negative emotions towards their knowledge level and negative emotions towards nursing care. The nurses appeared uncertain about their professional influence and role in antibiotic stewardship practices. Organisational and relational challenges and ambivalent perceptions of nurses’ role were potential explanations.

CONCLUSION: Nurses report moderate attitudes and high self-efficacy when caring for patients with multidrug-resistant bacterial infections. This study suggests that nurses experience organisational and relational factors in their work environment that challenge their attitudes towards infection prevention and control and antibiotic stewardship practices. Measures that strengthen their knowledge and emotional response underpin correct infection prevention and control behaviour. A role clarification is needed for antibiotic stewardship. No Patient or Public Contribution.

RELEVANCE TO CLINICAL PRACTICE: Measures to increase attitudes towards infection prevention and control, antibiotic stewardship and multidrug resistance is recommended. Measures should be taken to overcome organisational challenges. A clarification of the nurses’ role in antibiotic stewardship is needed.

PMID:36841961 | DOI:10.1111/jocn.16657