title: Progressive collapse of PMMA-augmented vertebra: a report of three cases.
abstract: Vertebroplasty using polymethylmethacrylate (PMMA) for augmentation is accepted as a safe and effective treatment for vertebral compression fracture. However, various complications related to PMMA vertebroplasty have recently been reported. We experienced three cases with progressive collapse of PMMA-augmented vertebra. Collapse progressed after augmentation in cases where PMMA conglomerated without contiguous bone interdigitation. A high viscosity of the PMMA preparation and vertebral body cavitory lesion may play a role in progressive vertebral collapse. To avoid this complication, bone cement should be injected sufficiently and permeate to contiguous bone to create strong support and anchorage.
authors.affiliation: Department of Neurosurgery, Yonsei University College of Medicine, Seoul, Republic of Korea.
authors.forename: D A
authors.initials: DA
authors.lastname: Shin
authors.forename: K N
authors.initials: KN
authors.lastname: Kim
authors.forename: H C
authors.initials: HC
authors.lastname: Shin
authors.forename: S H
authors.initials: SH
authors.lastname: Kim
authors.forename: D H
authors.initials: DH
authors.lastname: Yoon
mesh_terms: D000058:Accidental Falls; D000368:Aged; D000369:Aged, 80 and over; D001843:Bone Cements; D005260:Female; D006801:Humans; D017116:Low Back Pain / Q000209:etiology; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D010148:Intractable Pain / Q000209:etiology; D019904:Polymethyl Methacrylate; D011183:Postoperative Complications / Q000473:pathology*; D013117:Spinal Cord Compression / Q000473:pathology / Q000601:surgery*; D016103:Spinal Fractures / Q000473:pathology / Q000601:surgery*; D013131:Spine / Q000473:pathology / Q000601:surgery*; D014057:Tomography, X-Ray Computed; D017211:Treatment Failure; D054854:Vertebroplasty
chemical_list: D001843:Bone Cements; D019904:Polymethyl Methacrylate