1.Is the Apprehension Test Sufficient for the Diagnosis of Anterior Shoulder Instability in Young Patients without Magnetic Resonance Imaging (MRI)?
Krishna KUMAR ; Milindu MAKANDURA ; Nicholas J J LEONG ; Louise GARTNER ; Chin Hwee LEE ; Dennis Z W NG ; Chyn Hong TAN ; V Prem KUMAR
Annals of the Academy of Medicine, Singapore 2015;44(5):178-184
INTRODUCTIONThe purpose of this study is to compare the sensitivities and positive predictive values (PPV) of the anterior apprehension test and magnetic resonance imaging (MRI) in the diagnosis of anterior labral tears in young patients with shoulder instability and to determine if surgery could be carried out without this investigation in selected patients.
MATERIALS AND METHODSWe undertook a retrospective study of 168 patients aged between 15 and 30 years with a history of shoulder dislocation and compared the sensitivities and the PPV of the apprehension test with both MRI and magnetic resonance arthrograms (MRA) in the diagnosis of a Bankart lesion. The radiological investigations were interpreted by general practice radiologists and specialised musculoskeletal radiologists. All patients had their diagnosis confirmed by shoulder arthroscopy.
RESULTSOur results showed that the apprehension test was highly reliable when it was positive with a PPV of 96%. It was more sensitive than MRI in the diagnosis of a Bankart lesion. The clinical test was significantly better when a musculoskeletal radiologist interpreted the MRI. The MRA interpreted by a musculoskeletal radiologist had the highest rates of sensitivity in detecting Bankart lesions. The figure was similar to that for the apprehension test. There was no difference in the PPVs among the clinical test, the MRI and the MRA read by the 2 categories of radiologists.
CONCLUSIONWe conclude that a routine MRI may be unnecessary in evaluating a young patient with clinically evident anterior shoulder instability if the apprehension test is positive. A MRA that can be interpreted by a musculoskeletal radiologist will be the next best investigation if the clinical test is negative or equivocal.
Adolescent ; Adult ; Arthroscopy ; Female ; Humans ; Joint Instability ; diagnosis ; etiology ; surgery ; Magnetic Resonance Imaging ; Male ; Physical Examination ; methods ; Predictive Value of Tests ; Retrospective Studies ; Sensitivity and Specificity ; Shoulder Dislocation ; complications ; diagnosis ; surgery ; Shoulder Joint ; surgery ; Young Adult
2.Orthostatic hypotension: prevalence and associated risk factors among the ambulatory elderly in an Asian population.
Qing Olivia ZHU ; Choon Seng Gilbert TAN ; Hwee Leong TAN ; Ruining Geraldine WONG ; Chinmaya Shrikant JOSHI ; Ravi Amran CUTTILAN ; Gek Khim Judy SNG ; Ngiap Chuan TAN
Singapore medical journal 2016;57(8):444-451
INTRODUCTIONThe prevalence of orthostatic hypotension (OH) among the elderly population in Singapore, as defined by a decline in blood pressure upon a change in position, is not well-established. Studies associate OH with clinically significant outcomes such as falls. This study aims to determine the prevalence of OH among elderly patients attending a public primary care clinic (polyclinic) for chronic disease management, and examine the relationships between postulated risk factors and OH.
METHODSPatients aged ≥ 65 years attending a typical polyclinic in Geylang were identified and targeted for recruitment at the study site. A questionnaire on symptoms and postulated risk factors was administered, followed by supine and standing blood pressure measurements. Cross-sectional analysis was performed with independent sample t-test for continuous data and chi-square test for categorical data. Prevalence rate ratios with 95% confidence interval were calculated for the latter.
RESULTSA total of 364 multiethnic patients participated in the study. The prevalence of OH was 11.0%. Older age, comorbidities such as cardiac failure and kidney disease, being physically inactive at work, fatigue, self-reported dizziness in the past year, and the use of loop diuretics were found to be significantly associated with OH.
CONCLUSIONAbout one in ten elderly patients at a local polyclinic was affected by OH, which was associated with multiple factors. Some of these factors are modifiable and can be addressed to reduce the incidence of OH.
Accidental Falls ; prevention & control ; Aged ; Aged, 80 and over ; Asian Continental Ancestry Group ; Blood Pressure ; Blood Pressure Determination ; Cross-Sectional Studies ; Female ; Geriatrics ; Humans ; Hypotension, Orthostatic ; diagnosis ; epidemiology ; therapy ; Male ; Middle Aged ; Models, Statistical ; Prevalence ; Primary Health Care ; Risk Factors ; Singapore
3.Disseminated peritoneal leiomyomatosis: a devastating sequelae of unconfined laparoscopic morcellation.
Hwee Leong TAN ; Ye Xin KOH ; Min Hoe CHEW ; Junjie WANG ; Jason Shau Khng LIM ; Wei Qiang LEOW ; Ser Yee LEE
Singapore medical journal 2019;60(12):652-654
There has been growing concern surrounding the use of unconfined power morcellation in laparoscopic surgeries for uterine leiomyoma due to its associated risks and long-term clinical sequelae, including parasitic leiomyomas and disseminated peritoneal leiomyomatosis (DPL). We present a case of DPL resulting from previous laparoscopic morcellation and a review of the existing literature. DPL is a potentially devastating consequence of unconfined laparoscopic morcellation in the surgical management of uterine fibroids. A multidisciplinary approach is recommended in the management of DPL, especially in cases of multivisceral involvement. Clinical caution ought to be exercised when using power morcellators; when unavoidable, confined laparoscopic morcellation offers a promising mitigation and should be adopted if practicable.