Calcaneal Bursa, Posterior View

Description

Posterior to the ankle, the calcaneal bursa sits as a thin synovial sac interposed between the anterior surface of the Achilles (calcaneal) tendon and the posterosuperior calcaneus at the level of the calcaneal tuberosity. Superiorly, the tendon fibers descend from the distal leg and broaden before inserting on the posterior calcaneus, while the bursa occupies the potential space deep to the tendon. Superficial soft tissues of the heel pad lie posterior and inferior to the bursa, and the retrocalcaneal recess is positioned slightly proximal to the tendon’s insertion. Small but telling. Clinically, this posterior relationship matters because retrocalcaneal bursitis and insertional Achilles tendinopathy often coexist, producing pain anterior to the tendon that worsens with dorsiflexion and shoe counter pressure. Distinguishing the deep calcaneal (retrocalcaneal) bursa from the subcutaneous calcaneal bursa helps explain why some patients localize tenderness deep to the tendon rather than directly under the skin, and why Haglund deformity (a posterosuperior calcaneal prominence) can drive mechanical impingement and inflammation. The same anatomic corridor guides ultrasound evaluation and targeted injection, where accurate needle placement must avoid intratendinous infiltration. Use this artwork in musculoskeletal anatomy teaching for the ankle and foot, in sports medicine or orthopaedic texts covering heel pain differentials, and in patient education materials describing retrocalcaneal bursitis, Achilles insertion pathology, and footwear-related irritation in adult males. It also supports radiology and sonography training when correlating posterior heel landmarks with bursal distension on ultrasound or MRI. Anatomical accuracy verified by SciePro's Medical Advisory Board.