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Hong Kong, China

Tong S.H.Y.,Tseung Kwan O Hospital
Hong Kong Journal of Emergency Medicine | Year: 2011

We report a case of silver nitrate stain on the finger that masqueraded as an avulsion fracture on radiograph. Radiopacity in the proximal phalanx was demonstrated on radiograph after topical silver nitrate was applied to achieve haemostasis to a bleeding laceration on that area. The radiopacity was initially diagnosed as an avulsion fracture. The correct diagnosis of radiopacity corresponding to silver nitrate application was confirmed by correlation of physical examination with radiographic finding. The lesion spontaneously resolved with conservative management. The importance of correlating the clinical site of silver nitrate application with radiographic finding for accurate diagnosis and avoidance of unnecessary surgical intervention is emphasized. Source


Fu S.-N.,Hong Kong Polytechnic University | Chan Y.-H.,Tseung Kwan O Hospital
Disability and Rehabilitation | Year: 2011

Purpose: To translate, cross-culturally adapt and validate the International Knee Documentation Committee Subjective Knee Form (IKDC-SKF-C) to Chinese. Method. Forward and backward translations were conducted by two bilingual professional translators. Content validity was verified by a panel of a senior orthopaedic surgeon and six physiotherapists. The IKDC-SKF-C was tested on 84 patients. Psychometric testing included internal consistency (Cronbach's α) and test-retest reliability. Convergent validity used Spearman's correlation coefficient (rho) tests by comparing its score with the Chinese version of SF-36. Results. The Internal consistency was excellent with Cronbach's α=0.97. Test-retest reliability was supported with an ICC=0.87. The IKDC-SKF-C was moderately related to concurrent measures of physical function and bodily pain (r=0.64, p<0.05). Conclusion. The translated Chinese IKDC-SKF is a reliable and valid tool with equal measurement properties and conceptual equivalent to the original version. © 2011 Informa UK, Ltd. Source


Chen H.,Hong Kong Polytechnic University | Ho H.M.,Tseung Kwan O Hospital | Ying M.,Hong Kong Polytechnic University | Fu S.N.,Hong Kong Polytechnic University
British Journal of Radiology | Year: 2012

Objectives: The purpose of this study was to correlate findings on small vessel vascularity between computerised findings and Newman's scaling using power Doppler ultrasonography (PDU) imaging and its predictive value in patients with plantar fasciitis. Methods: PDU was performed on 44 patients (age range 30-66 years; mean age 48 years) with plantar fasciitis and 46 healthy subjects (age range 18-61 years; mean age 36 years). The vascularity was quantified using ultrasound images by a customised software program and graded by Newman's grading scale. Vascular index (VI) was calculated from the software program as the ratio of the number of colour pixels to the total number of pixels within a standardised selected area of proximal plantar fascia. The 46 healthy subjects were examined on 2 occasions 7-10 days apart, and 18 of them were assessed by 2 examiners. Statistical analyses were performed using intraclass correlation coefficient and linear regression analysis. Results: Good correlation was found between the averaged VI ratios and Newman's qualitative scale (ρ=0.70; p<0.001). Intratester and intertester reliability were 0.89 and 0.61, respectively. Furthermore, higher VI was correlated with less reduction in pain after physiotherapeutic intervention. Conclusions: The computerised VI not only has a high level of concordance with the Newman grading scale but is also reliable in reflecting the vascularity of proximal plantar fascia, and can predict pain reduction after intervention. This index can be used to characterise the changes in vascularity of patients with plantar fasciitis, and it may also be helpful for evaluating treatment and monitoring the progress after intervention in future studies. © 2012 The British Institute of Radiology. Source


Kwan P.,Chinese University of Hong Kong | Wong V.,University of Hong Kong | Ng P.W.,United Christian Hospital | Lui C.H.T.,Tseung Kwan O Hospital | And 3 more authors.
Pharmacogenomics | Year: 2011

Aim: To determine the association between polymorphisms of the multidrug transporter genes ABCC2, ABCC5 and ABCG2, and drug resistance in epilepsy by genotyping comprehensive sets of tagging SNPs. Materials & methods: A total of 25 tagging SNPs from ABCC2, ABCC5 and ABCG2 genes were genotyped in a total of 590 Han Chinese epilepsy patients (262 drug resistant and 328 drug responsive). Genotype and allele distributions in drug-responsive and drug-resistant patients were compared. Results: Genotype distributions of all the selected SNPs were consistent with Hardy-â€"Weinberg equilibrium. None of the polymorphisms, either genotype or allele distributions, were significantly associated with drug resistance. For each gene, no haplotypes of over 1% frequency, and that included all SNPs of the gene, were associated with drug resistance. Conclusion: This gene-wide tagging study revealed no association between ABCC2, ABCC5 and ABCG2 genetic polymorphisms and multidrug resistance in epilepsy. © 2011 Future Medicine Ltd. Source


Hung J.L.P.,Tseung Kwan O Hospital
Hong Kong Journal of Emergency Medicine | Year: 2015

We report an extremely rare case of isolated fracture of the volar rim of lunate fossa which extends into the sigmoid notch, resulting in distal radioulnar joint (DRUJ) and radiocarpal joint instability. This fracture is easily missed with radiography alone in emergency setting, and should not be treated with casting due to DRUJ instability. © 2015, Medcom Limited. All rights reserved. Source

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