Anatomical variation of quadratus plantae with flexor digitorum longus tendon along with unilateral polydactyly of the toes: a rare case report

During routine dissection, we observed a unique case of unilateral polydactyly in the left foot of a 61-year-old malecadaver. We observed the medial head of the quadratus plantae (QP) muscle, which gave off an additional tendinous slipbefore joining the lateral head of QP. The 4th tendon of the flexor digitorum longus (FDL) was bifurcated into two tendinousparts after receiving a thin fibrous slip from the tendinous slip of the medial head of QP. The medial division of the 4thtendon of FDL passed forward and attached to the base of the distal phalanx of the 5th toe. The extra tendinous slip from themedial head of QP was attached distally to the lateral division of the 4th tendon of FDL and formed a common anomaloustendon to the 6th toe. The knowledge of this variation would be helpful in reconstructive foot surgeries and correction ofcongenital deformities.