Introduction Because of the increasing emergence of skin manifestations of the coronavirus disease 2019 (COVID-19) worldwide, we investigated the published reports of these lesions. Methods We conducted a literature search for original and review articles published from November 11, 2019, to September 30, 2020. Results We determined five skin lesions common in patients with COVID-19: pseudo-chilblains, maculopapular, urticarial, vesicular, and vaso-occlusive lesions. These lesions manifest at various times in relation to COVID-19 symptoms, which may indicate whether the lesions are virus-induced or are delayed immunological responses to the infection. Skin lesions are more prevalent among Europeans and US residents than among Asians, as is pseudo-chilblain, and the morphology of the skin lesions varies between continents. Pseudo-chilblains are the most common COVID-19 skin manifestation in Europe and the United States, but there is only one reported case from Asian populations. Additionally, patients with vaso-occlusive lesions are more likely than those with pseudo-chilblains to be admitted to the intensive care unit and to die. Conclusion Different cutaneous manifestations in patients with COVID-19 could reflect a wide spectrum of viral interactions with the skin, though reporting bias may play a role as well.

Coronavirus disease 2019 (COVID-19) pandemic continues to spread globally at a staggering speed. At present, there is no effective treatment or vaccine for COVID-19. Hand disinfection is a cost-effective way to prevent its transmission. According to the Centres for Disease Control and Prevention (CDC) guidelines, we should wash our hands with soap and water for at least 20 seconds. If soap and water are not readily available, alcohol-based hand rubs (ABHRs) with at least 60% alcohol are the alternative. With diligent hand disinfection reinforced during COVID-19, there is an increased prevalence of contact dermatitis. This commentary highlights the fact that contact dermatitis is a readily treatable condi tion and should not cause any deviation of proper hand hygiene. In irritant contact dermatitis (ICD), the management strategies are selection of less irritating hand hygiene products, frequent use of moisturisers to rebuild the skin barrier, and education on proper hand hygiene practices. In allergic contact dermatitis (ACD), the identification and avoidance of the contact allergen is the key to treatment. However, ACD is less common and only accounts for 20% of the cases. The identified allergens in hand cleansers are predominantly preservative excipients a nd ACD attributable to ABHR are very uncommon. Alcohol-free hand rubs are widely available on the market but it is not a recommended alternative to ABHRs by the CDC.

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Our article showed that iASSIST was safe and remains a useful tool to restore mechanical axis. However, our data demonstrated no difference in lower limb alignment and component placement between the TKA that used accelerometer-based system and those that underwent conventional method.