Heterotopic ossification in orbital roof, frontal sinus, and ethmoidal cells leading to hypoglobus and upward-gaze deficit.

Heterotopic ossification (HO) of facial sinuses is very rare. In this article, we present an extensive HO case covering the right frontal sinus, superior ethmoidal cells, and upper orbital rim and roof. This mass was leading to a hypoglobus and upward-gaze deficit due to mass effect.

Intermittent ischaemia of skin flaps shortens time taken to divide pedicles: an experimental study in rats.

Ischaemic preconditioning increases the survival of flaps. Random-pattern McFarlane dorsal flaps were raised in 30 female Wistar rats, which were divided into three groups. An ischaemic conditioning protocol with clamping of the pedicle was used.