Peroneal palsy refers to the loss of movement and/or sensation in the foot, ankle, and lower leg, due to damage to the peroneal nerve.
The peroneal nerve is the branch of the sciatic nerve that supplies energy and stimulation to the lower limb and foot and ankle. When this nerve is damaged, the resulting peroneal palsy can manifest in various walking abnormalities and foot drop.
Damage to the peroneal nerve can be caused by sudden trauma, such as injuries resulting from sports or a car accident, or from any kind of hard fall that affects the outer part of the knee. Also, chronic nerve compression at the head of the fibula (the outside bone of the lower leg) can eventually lead to peroneal palsy.
For instance, people who drive long distances for a living should be careful to not have their leg continually pressed against the door of their vehicle. Similarly, women who for years continually cross their legs in a manner that puts pressure on the fibular area on their upper leg increase their risk of developing peroneal palsy. Likewise, persons who are bedridden for an extended period of time and lie without shifting in a position that puts pressure on the fibular area, can experience damage to the peroneal nerve.
Also, it must be noted that twisting or spraining the ankle can result in peroneal nerve damage, since the peroneal nerve crosses the ankle joint to supply energy to the muscles of the foot. Athletes and dancers who repeatedly suffer ankle injuries must be alert to this possible outcome.
Surgeries are another cause of damage to the peroneal nerve that can and does result in peroneal palsy. The major kinds of hospital procedures that can inadvertently result in peroneal nerve damage are knee surgeries and hip replacement operations. All surgical operations have risks of some sort or another.
Candidates for these surgeries must be made aware that damage to the peroneal nerve can occur during these surgeries, resulting in peroneal palsy.
Peroneal Nerve Damage Causes
Peroneal Nerve Damage Symptoms