A Binter Canarias Airbus A320-214 experienced a serious incident during a tow operation. A tow truck was using a turn to guide the aircraft north, and a ground worker inadvertently caused a significant problem. The operator, coordinator, and tractor operator lacked coordination, leading to a series of actions deviating from standard procedures. The operator attempting to release the tow bar became trapped, resulting in a serious injury to his leg.A Binter Canarias Airbus A320-214 experienced a serious incident during a tow operation. A tow truck was using a turn to guide the aircraft north, and a ground worker inadvertently caused a significant problem. The operator, coordinator, and tractor operator lacked coordination, leading to a series of actions deviating from standard procedures. The operator attempting to release the tow bar became trapped, resulting in a serious injury to his leg.