Muckle-Wells syndrome (MWS) is a rare condition characterized by urtic
aria, arthralgias, deafness and amyloid nephropathy. The arthropathy i
s poorly documented. We describe the arthropathy occurring in four cas
es of MWS and discuss the management. Each patient developed recurrent
bouts of transient synovitis. One patient developed a persistent ster
ile pyoarthrosis.