Clubfoot and its implications for the locomotion of a medieval skeleton from Estremoz, Portugal.

Objective: This study describes foot bone anomalies and the degenerative changes associated with locomotion adaptations.

Materials: An adult male (approximately 29-46 years old) from Estremoz, Portugal (13th-15th century).

Methods: The skeletal anomalies observed in this skeleton were described and measurements were compared between both sides of the individual and with the mean of the adult males from the same collection.

Results: The most anomalous bones are the right medial cuneiform and metatarsals. Degenerative changes are more severe on the left lower limb and right upper limb.

Conclusions: This skeleton represents a unilateral case of talipes varus of the right foot, with the metatarsals being more affected while previously published cases show more severe anomalies of the hindfoot. The degenerative changes observed in the skeleton suggest that both legs and arms, aided by crutches, were used for locomotion.

Significance: This case shows that club foot skeletal anomalies are variable and the pattern of bony changes throughout the body can reveal locomotion adaptations.

Limitations: The possibility of a genetic cause cannot be assessed due to the absence of paleogenomic data.

Suggestions For Further Research: Since the anomalies found in this case are different than those previously published, we recommend care when analysing foot bones.