Browsing by Author "Rhoda, Anthea"

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    Accuracy of clinical neurological examination in diagnosing lumbo-sacral radiculopathy : a systematic literature review
    (BioMed Central, 2017-02-23) Tawa, Nassib; Rhoda, Anthea; Diener, Ina
    ENGLISH SUMMARY : Background: Lumbar radiculopathy remains a clinical challenge among primary care clinicians in both assessment and diagnosis. This often leads to misdiagnosis and inappropriate treatment of patients resulting in poor health outcomes, exacerbating this already debilitating condition. This review evaluated 12 primary diagnostic accuracy studies that specifically assessed the performance of various individual and grouped clinical neurological tests in detecting nerve root impingement, as established in the current literature. Methods: Eight electronic data bases were searched for relevant articles from inception until July 2016. All primary diagnostic studies which investigated the accuracy of clinical neurological test (s) in diagnosing lumbar radiculopathy among patients with low back and referred leg symptoms were screened for inclusion. Qualifying studies were retrieved and independently assessed for methodological quality using the ‘Quality Assessment of Diagnostic tests Accuracy Studies’ criteria. Results: A total of 12 studies which investigated standard components of clinical neurological examination of (sensory, motor, tendon reflex and neuro-dynamics) of the lumbo-sacral spine were included. The mean inter-observer agreement on quality assessment by two independent reviewers was fair (k = 0.3 – 0.7). The diagnostic performance of sensory testing using MR imaging as a reference standard demonstrated a sensitivity (confidence interval 95%) 0.61 (0.47-0.73) and a specificity of 0.63 (0.38-0.84). Motor tests sensitivity was poor to moderate, ranging from 0.13 (0.04-0.31) to 0.61 (0.36-0.83). Generally, the diagnostic performance of reflex testing was notably good with specificity ranging from (confidence interval 95%) 0.60 (0.51-0.69) to 0.93 (0.87-0.97) and sensitivity ranging from 0.14 (0.09-0.21) to 0.67 (0.21-0.94). Femoral nerve stretch test had a high sensitivity of (confidence interval 95%) 1.00 (0.40-1.00) and specificity of 0.83 (0.52-0.98) while SLR test recorded a mean sensitivity of 0.84 (0.72-0.92) and specificity of 0.78 (0.67-0.87). Conclusions: There is a scarcity of studies on the diagnostic accuracy of clinical neurological examination testing. Furthermore there seem to be a disconnect among researchers regarding the diagnostic utility of lower limb neurodynamic tests which include the Straight Leg Raise and Femoral Nerve tests for sciatic and femoral nerve respectively. Whether these tests are able to detect the presence of disc herniation and subsequent nerve root compression or hyper-sensitivity of the sacral and femoral plexus due to mechanical irritation still remains debatable.
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    Correlation of the self-reported Leeds assessment of neuropathic symptoms and signs score, clinical neurological examination and MR imaging in patients with lumbo-sacral radiculopathy
    (BMC (part of Springer Nature), 2019-05-30) Tawa, Nassib; Diener, Ina; Louw, Quinette; Rhoda, Anthea
    Background: Lumbo-sacral radiculopathy (LSR) is a common musculoskeletal disorder for which patients seek medical care and referrals for advanced imaging. However, accurate diagnosis remains challenging. Neuropathic pain screening questionnaires, clinical neurological examination and magnetic resonance imaging (MRI) are used in the initial diagnosis. The utility of these tools in diagnosing LSR varies and their correlation has not been reported. Methods: A cross-sectional, multicentre, blinded design was used in six physiotherapy departments in Kenya. Each participant was blindly examined by three independent clinicians using the Self-Reported Leeds Assessment of Neuropathic Symptoms and Signs (S-LANSS) score, clinical neurological examination (CNE) and MRI. Spearman’s rank coefficient (r) was used to examine the correlation between the three tests. Linear regression and odds ratios were used to establish correlations between socio-demographic, clinical and diagnostic parameters. The diagnostic accuracy of individual or combined sets of CNE tests in diagnosing LSR, with reference to MRI, was determined using Receiver Operating Characteristics (ROC) curves. Results: We enrolled 102 participants (44 males, 58 females; mean age: 44.7 years). Results indicated a significant positive correlation (r = 0.36, P = 0.01) between S-LANSS, CNE and MRI among patients with low back and radiating leg symptoms. Positive agreement existed between combined neuro-conduction tests (sensory, motor and reflex) and neuro-dynamic tests (NDT). The NDT component of CNE (Straight Leg Raise Test [SLRT] and Femoral Nerve Stretch Test [FNST]) was significantly associated (P = 0.05) with MRI: patients who had positive NDT results had higher odds (8.3) for positive nerve root compromise on MRI versus those who had negative NDT results. Conclusion: This was the first study to investigate the correlation between S-LANSS, CNE and MRI in patients presenting with low back and radiating leg symptoms. Results indicated a significant positive correlation. The strongest correlations to MRI findings of LSR were firstly, NDT (SLRT and FNST); secondly, the S-LANSS score; and thirdly, the CNE components of motor power and deep tendon reflex. The clinical implication is that clinicians can confidently use the S-LANSS score and CNE to diagnose and make therapeutic decisions in LSR, when MRI is medically contra-indicated, unaffordable or unavailable.
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    Experiences of patients and service providers with out-patient rehabilitation services in a rehabilitation centre in the Western Cape Province
    (AOSIS Publishing, 2015-12) Kumurenzi, Anne; Goliath, Charlyn; Mji, Gubela; Mlenzana, Nondwe; Joseph, Conran; Statham, Sue; Rhoda, Anthea
    Background: Rehabilitation is important for persons with disabilities as it contributes to their sense of autonomy, self-worth and social participation, and improves their quality of life. Improving the quality of rehabilitation services requires the dialogue of patients’ perceptions with those of service providers, in order to recommend informed reform. Objective: The objective was to explore the experiences of persons with physical disabilities and service providers, regarding the multi-disciplinary rehabilitation services provided at a community-based out-patient rehabilitation centre. Methods: A qualitative, exploratory study design was used to collect the data. A focus group was conducted with conveniently selected persons with physical disabilities. Three in-depth interviews were conducted with purposively selected key informants. All ethical considerations were adhered to during the implementation of the study. Results: Patients and service providers had different experiences regarding accessibility to rehabilitation services, and similar experiences with patient education and intensity of rehabilitation. Although the patients experienced that the service providers had sufficient knowledge and skills to manage them, services providers expressed that they lacked certain skills. Conclusions: The experiences expressed highlighted the need to improve rehabilitation services in terms of increasing the capacity of service providers and providing transport services for persons with disabilities.
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    A protocol for the methodological steps used to evaluate the alignment of rehabilitation services in the Western Cape, South Africa with the National Rehabilitation Policy
    (BioMed Central, 2017-03) Mji, Gubela; Rhoda, Anthea; Statham, Sue; Joseph, Conran
    ENGLISH SUMMARY : Background: Rehabilitation medicine plays an integral part in attainment of optimal functioning after injury or disease. The National Rehabilitation Policy of South Africa (NRP) (2000) highlights the need for access to professional health care services, redistribution and optimal utilisation of resources and research in the field of disability and rehabilitation. The government further ratified the Convention on the Rights of Persons with Disabilities (CRPD) (2007), which validate the urgency in advancing the agenda of persons with disabilities. This paper outlines the methodological plan for evaluating rehabilitation services in the Western Cape, South Africa against the aims and objectives of the NRP as well as its principles and concepts. The evaluation process further focused on specific articles in the CRPD that were aligned with disability, health and rehabilitation. Methods/Design: A mixed-method design was used to evaluate the alignment of rehabilitation services with the NRP in the Western Cape. Four rehabilitation study settings were selected to ensure that both inpatient and outpatient rehabilitation levels of care were covered at different contexts (rural and peri-urban). The sites were checked for the most prevalent rehabilitation-related conditions to ensure the identification of suitable instruments for measuring rehabilitation outcomes. Each study setting was linked to two researchers with one exploring the rehabilitation organizational structure of the sites and the other exploring the client outcomes after receiving rehabilitation services. Patients were evaluated at baseline and discharge, within seven days after admission and seven days prior to discharge. The evaluation was based on the rehabilitation organizational capacity to provide patient-oriented rehabilitation and the measurement of rehabilitation outcomes. Kaplan’s framework of organisational capacity was used in the context of each study setting. For the measurement of service users’ outcomes, the International Classification of Functioning, Disability and Health was used (ICF). Standardised outcome measures were adopted for the domains of impairment, activity and participation. The World Health Organisation Community-Based Rehabilitation guidelines were used as guiding principles and concepts as suggested in the NRP. Discussion: This is a groundbreaking methodological exploration that offers both study methods and instruments to measure rehabilitation services at both in-patient and out-patient rehabilitation services.