The COVID-19 pandemic and subsequent lockdown measures have changed various aspects of society, including patterns of human-animal interactions. This audit investigates the incidence and severity of dog bites admitted under the plastic surgery department at a major trauma centre before and after COVID-19 lockdowns. We assessed trends in dog bite cases over the course of one year (2018) prior to the COVID-19 lockdown and one year after (2022). A time period during COVID-19 lockdown itself was not included to avoid confounding factors due to changes in healthcare provision during the pandemic. Our analysis reveals a 47 % increase in dog bites after lockdowns ended compared to before. We also demonstrate statistically significant increases in the need for operative management (90 % of patients compared to 78 %) and length of inpatient hospital stay (average 63 h compared to 51). Moreover we show that dog bites have increased in severity, with a clear increase in patients presenting with deeper tissue injuries, tissue loss and muscle, nerve, vascular or bone involvement. This represents a significant functional, cosmetic and psychological impact for patients as well as financial impact on the NHS and increased workload for plastic surgery departments. This is the first paper to examine the severity of dog bite injuries and to demonstrate a sustained effect even after the easing of lockdown measures. Our findings shed light on the potential impact of lockdown measures on human-dog interactions and highlight the importance of public awareness and prevention strategies in mitigating dog bites. LAY SUMMARY: Our study demonstrates that dog bite injuries increased in frequency by 47 % following COVID-19 lockdowns. Patients with dog bites are also being admitted for longer than before, requiring more operations and have more severe injuries, with some requiring skin grafting, nerve repair or more complex plastic surgery reconstruction.

Objective: NovoSorb (Poly-Novo Ltd, Australia) biodegradable temporising matrix (BTM) is a novel artificial dermal matrix. Previous literature is weighted towards its use in burns reconstruction; however, this paper describes its use within a range of wound aetiologies. The authors present one of the largest and most diverse case series to date, and aim to provide an independent benchmark of clinical practice.

Injuries to the extensor mechanism of the hand and forearm are common and cause significant functional disability. Complete tendon lacerations are managed with surgical repair, whereas selected partial tendon injuries may be managed without repair but with splinting and physiotherapy alone. There is limited evidence to support the management of partial lacerations, in particular the decision of whether to repair or not. We aimed to systematically review the literature to determine the optimal management of partial extensor tendon lacerations in the hand and forearm. A protocol for the systematic review was developed prospectively and registered with PROSPERO (CRD42021250431). PubMed, EMBASE, clinicaltrials.gov, and Cochrane Central Register of Controlled Trials (CENTRAL) were searched from 1990 to 27/05/2022. 4565 studies were screened, of which 88 underwent full text review. Five studies were included, one randomised control trial and four cohort studies. One study examined outcomes of partial lacerations treated without repair; the other four studies examined outcomes following repair. Pinch and grip strength and time to return to work were similar regardless of management. Adverse outcomes were reported for patients undergoing surgical repair; none were observed in those managed without repair. Meta-analysis was precluded by study heterogeneity and high risk of bias. There is limited evidence to support the management of partial extensor tendon lacerations, with some low-quality evidence that non-operative management of selected partial lacerations is safe. There is a pressing need for pragmatic, multicentre randomised trials to assess the cost-effectiveness of current treatments.