P

Peri-articular

Peri-articular means 'around the joint'.

Periosteum

The periosteum is the thin web-like covering of fibrous tissue around the outside of bones.

Peroneal nerve

The peroneal nerve is a branch of the sciatic nerve that supplies movement and sensation to the lower leg. Page updated November 2023 by Dr Sheila Strover (Clinical Editor)

Pes anserine bursa

The pes anserine bursa is a sac (lined space) under the attachments of the pes anserine tendons on the inner aspect of the knee.

Pes anserine bursitis

Pes anserine bursitis is inflammation of the pes anserine bursa.

Pes planus

Pes planus is the same as flat foot. Page updated April 2024 by Dr Sheila Strover (Clinical Editor)

Pes tendons

The pes tendons are the attached tendon of the sartorius, gracilis and semitendinosus muscles, which insert together on the upper tibia on the medial side of the knee.

PFPS

PFPS is an abbreviation of 'Patellofemoral pain syndrome'.

PFS

PFS is an abbreviation of 'patellofemoral syndrome'.

Physes

Physes are the growth plates of bones in children. Page updated May 2024 by Dr Sheila Strover (Clinical Editor)