Abstract
This case report describes the arthroscopic findings in two patients with nail-patella
syndrome (NPS). In both cases, a midline synovial septum was encountered that completely
subdivided the knee into medial and lateral compartments. One patient required two
subsequent arthroscopic procedures, and the synovial septum was found to have recurred
even after it had been resected at the initial surgery. The etiology and clinical
significance of this anatomic anomaly are unknown, however, surgeons should be aware
of its existence and the potential difficulties it may present during knee arthroscopy
in patients with NPS.
Keywords
nail-patella syndrome - septum - knee - arthroscopy