The bicipitoradial bursa is a

bursa ( grc-gre, Προῦσα, Proûsa, Latin: Prusa, ota, بورسه, Arabic:بورصة) is a city in northwestern Turkey and the administrative center of Bursa Province. The fourth-most populous city in Turkey and second-most populous in the ...

located between the distal tendon of the biceps brachii muscle and the anterior part of the

tuberosity of the radius Beneath the neck of the radius, on the medial side, is an eminence, the radial tuberosity; its surface is divided into: * a ''posterior, rough portion'', for the insertion of the tendon of the biceps brachii. * an ''anterior, smooth portion'', on ...

. It partially or completely wraps around the biceps tendon. It ensures frictionless motion between the biceps tendon and the proximal radius during

pronation Motion, the process of movement, is described using specific anatomical terms. Motion includes movement of organs, joints, limbs, and specific sections of the body. The terminology used describes this motion according to its direction relative ...

and

supination Motion, the process of movement, is described using specific anatomical terms. Motion includes movement of organs, joints, limbs, and specific sections of the body. The terminology used describes this motion according to its direction relative ...

of the forearm. With pronation, the tuberosity of the radius rotates posteriorly, causing compression of the bursa between the biceps tendon and the radial tuberosity. The bicipitoradial bursa is one of the two bursae in the cubital fossa, the other being the interosseous bursa. Inflammation of the bicipitoradial bursa or bicipitoradial

bursitis Bursitis is the inflammation of one or more bursae (fluid filled sacs) of synovial fluid in the body. They are lined with a synovial membrane that secretes a lubricating synovial fluid. There are more than 150 bursae in the human body. The bursa ...

is a rare condition and only few reports can be found in literature. In severe cases, the bursa is distended by synovial debris and can cause compression of the posterior interosseous nerve.

References

Synovial bursae Upper limb anatomy Soft tissue Musculoskeletal system {{musculoskeletal-stub