Gemeinsame Stellungnahme der Deutschen Gesellschaft für HNO-Heilkunde, Kopf- und Hals-Chirurgie (DGHNO-KHC) und des Deutschen Berufsverbandes der HNO-Ärzte (BVHNO) für ärztliches Personal in der Hals-, Nasen- und Ohrenheilkunde/Kopf- und Hals-Chirurgie zum Arbeiten in der Schwangerschaft und Stillzeit.

Working during pregnancy and breastfeeding is a special situation for both the employee and the employer/supervisor. The amended version of the Maternity Protection Act (MuSchG), which came into force on January 1st, 2018, protects the health of women and their children while working, training or studying during pregnancy, after giving birth and while breastfeeding. Women should be able to continue their employment or related activities during this time without jeopardising their health or that of their child. This law was furthermore reformed to prevent discrimination against the working mother during this time. In order to create the best and safest possible framework conditions for employment during pregnancy and breastfeeding, the DGHNO-KHC and the BVHNO would like to present a "general positive list" and a "positive list for surgical activities" as part of this statement, which should serve as a guideline for all relevant parties. This agreed positive list is intended to enable pregnant and breastfeeding doctors to carry out patient-related activities as well as head and neck surgeries in accordance with the MuSchG of 2018. Hereby, affected colleagues should have the opportunity to continue working self-determined.

Mallet finger: a simulation and analysis of hyperflexion versus hyperextension injuries.

The goal of this study was to simulate the mechanisms of hyperflexion and hyperextension injuries of the distal interphalangeal (DIP) joint of the hand and to analyze the resulting extensor tendon injury patterns. The hypotheses were raised that hyperflexion trauma leads to a plastic deformation of the extensor tendon aponeurosis, with or without a small bony avulsion fragment but without joint surface involvement, and that hyperextension injuries can create a shear fracture of the dorsal lip of the distal phalanx, without injury to the extensor tendon aponeurosis. Loading was applied with a swinging pendulum impacting the distal phalanx in 103 human specimens in either an extended or flexion position. After loading, injury patterns were analyzed radiologically and histologically. There was evidence that hyperflexion trauma leads to a plastic deformation or rupture of the extensor tendon. Bony tendon avulsion was evident in 12.2 % of cases. With hyperextension, the extensor tendon remained intact in all cases, but there were large fracture fragments involving the articular surface in 4.1 % of cases. The results of the study show that force on the flexed joint leads to overstretching of the extensor tendon, and to an associated dorsal bony avulsion with intact joint line. Force applied to the joint in extension can lead to a bony dorsal edge fracture with articular involvement and with it, a palmar DIP joint capsule rupture. The results illuminate a direct correlation between the mechanism of injury and the pattern of injury in the clinical picture of mallet finger.