Screening for Attenuated Forms of Mucopolysaccharidoses in Patients with Osteoarticular Problems of Unknown Etiology.

Introduction: The mucopolysaccharidoses (MPS) are a group of 11 inborn errors of metabolism (IEM) which are part of the lysosomal storage diseases (LSDs). The MPS are multisystemic conditions that affect the entire body, with variations in the clinical presentation, having specific treatments available depending on the type of MPS. Nearly all MPS disorders compromise the osteoarticular system in different ways, and virtually all patients have abnormal urinary excretion of glycosaminoglycans (GAGs).

Checkrein deformity--flexor hallucis tethering: two case reports.

The authors present two cases of checkrein deformity, a tethering of the flexor hallucis longus (FHL) tendon, following ankle surgery. The first case was treated by tenolysis and tendon lengthening posterior to the ankle. The second case was treated by lengthening of the FHL at the midfoot, a more simple procedure which produced a better outcome and faster recovery.