INTRODUCTION: Rupture of the extensor pollicis longus (EPL) tendon has been reported in the setting of @entity174 , chronic @entity625 , following @entity479 injection, and with excessive or repetitive activities. Truly, spontaneous @entity397 , without an identifiable predisposing factor, has rarely been reported. METHODS: We present a retrospective case series of eight @entity1 with spontaneous @entity397 who were treated in our institution. RESULTS: The majority of the cases were female (75  %, n   =   6), and the nondominant (75  %, n   =   6) hand was most commonly involved. No identifiable predisposing factor could be identified in four @entity1 . While four @entity1 reported a history of a fall, radiographs failed to demonstrate @entity853 in all four cases. No additional pathology could be identified at the time of surgery. @entity1 were treated using tendon transfer (n   =   7) or interpositional graft (n   =   1). There has been no case of clinical recurrence in the mean of 74.8  months (range 23-140  months) follow-up period. CONCLUSION: The EPL tendon is at risk for @entity1409 even in the absence of identifiable predisposing risk factor. Rather than pure mechanical irritation, vascular and metabolic factors may also play a substantial role in the etiology of this uncommon diagnosis.

Revisiting XXXX of the extensor pollicis longus tendon: eight cases without identifiable predisposing factor.

@entity1 :: ('9606', 'Species') :: ['Patients', 'patients'] @entity625 :: ('MESH:D001168', 'Disease') :: ['inflammatory arthritis'] @entity174 :: ('MESH:D050723', 'Disease') :: ['distal radius fracture'] @entity1409 :: ('MESH:D012422', 'Disease') :: ['spontaneous rupture'] @entity853 :: ('MESH:D009139', 'Disease') :: ['skeletal abnormality'] @entity397 :: ('MESH:D012421', 'Disease') :: ['EPL rupture'] @entity479 :: ('D013256', 'Chemical') :: ['steroid']
@entity1409 :: (MESH:D012422,Disease) :: ['spontaneous rupture']
