Fingertip Injuries in Mask Factory Workers during the COVID-19 Pandemic.

Background: The COVID-19 pandemic has caused a dramatic increase in the demand of face masks. The aim of this study is to look into the demographics, clinical details, clinical outcome and the risk factors for fingertip injuries in mask manufacturing factory workers. Methods: This is a retrospective review of all patients admitted to a regional hospital following a fingertip injury sustained at a mask making factory over a 6-month period from March 2020 to August 2020. Data with regard to gender, age, hand dominance, job position, injured finger, type of injury, mechanism of injury, treatment, clinical outcome (time to return to work), as well as risk factors for injuries (training before work, duration of work before injury, previous experience on working on similar machines, protective measures and working hours) were collected and analysed. Results: There were seven patients in total (M:F = 6:1) with a mean age of 38.4 years. Four patients had injuries on their dominant hands. The most commonly injured finger was the middle finger (n = 3). The most common injury pattern was fingertip amputation (n = 5). Five patients required operative management. Only four patients received training before work and six patients were injured within the first month of work. No patient had previous experience in operating similar machines. Long working hours is also a related risk factor. Conclusions: Better occupational safety and training should be employed to prevent these injuries. Level of Evidence: Level IV (Therapeutic).

Three Cases of Translunate Perilunate Injury Treated with Wrist Arthroscopy.

Background An acute fracture of the lunate is an uncommon injury with the reported incidence ranging from 0.5 to 1% of all carpal bone fractures. The combination of lunate fracture and perilunate injury is even rarer and Bain et al first introduced the "translunate arc concept" in 2008. We reported three cases of translunate perilunate injury treated with wrist arthroscopy. Materials and Methods All the three cases had been treated successfully with the use of wrist arthroscopy. A novel technique of arthroscopic reduction and fixation of a volar pole of lunate fracture was illustrated. The lunate fracture healed in all cases with normal carpal alignment. Results All patients achieved a painless and functional joint with good range of motion at an average follow-up of 15 months. There was no radiological evidence of avascular necrosis of the lunate in all three cases. Conclusion Translunate perilunate injury is rare and a high index of suspicion is necessary for diagnosis. There was no consensus on the surgical approach to this kind of injury. Wrist arthroscopy had proven to be successful in treating the greater and lesser arc perilunate injury. For translunate perilunate injury, wrist arthroscopy is also a feasible option with the advantages of lower risk of arthrofibrosis and avascular necrosis.

Digital ischaemia: a rare but severe complication of jellyfish sting.

We report a case of digital ischaemia in a 31-year-old man who presented with sudden hand numbness, swelling, and cyanosis 4 days after a jellyfish sting. This is a rare complication of jellyfish sting, characterised by a delayed but rapid downhill course. Despite serial monitoring with prompt fasciotomy and repeated debridement, he developed progressive ischaemia in multiple digits with gangrenous change. He subsequently underwent major reconstructive surgery and aggressive rehabilitation. Although jellyfish stings are not uncommon, no severe jellyfish envenomation has been reported in the past in Hong Kong and there has not been any consensus on the management of such injuries. This is the first local case report of jellyfish sting leading to serious hand complications. This case revealed that patients who sustain a jellyfish sting deserve particular attention to facilitate early detection of complications and implementation of therapy.

Metacarpophalangeal joint arthroscopy: indications revisited.

Arthroscopic surgery has become the gold standard for the diagnosis and treatment of major joint disorders. With advancement in arthroscopic technique, arthroscopy has become feasible in most human joints, even those as small as the finger joints. The metacarpophalangeal joint (MCPJ) can become spacious with simple traction, the intra-articular anatomy is simple, and its major structures can be easily visualized and identified. However, MCPJ arthroscopy has never been popular. This article describes our experience with MCPJ arthroscopy and seeks to establish its role in clinical practice.