While all lower limb prosthesis walkers have a high risk of tripping and/or falling. above knee prosthesis users are reported to fall more frequently. Recognising this. engineers designed microprocessor knees (MPK) to help mitigate these risks. https://www.spidertattooz.com/Static-Nails-Something-Extra-Rapid-Repair-Nail-Cuticle-Oil-p39591/