Surgical neurology international · 2026
Lumbar stand-alone interspinous fixation without decompression or bone graft: A 14-year cautionary case of late mechanical failure.
Клинический случайСтатьяНазвание и аннотация: Перевод в очереди
Обработка статьи · этапы, ошибки и управление
Загрузка состояния…
Ошибки и ограничения
История · было → стало
Состояние обновляется каждые 5 секунд, пока блок открыт. Процент показывается только там, где известен объём работы. Пауза останавливает продолжение этапа; текущий запрос к источнику может завершиться.
Kawanishi Masahiro, Ikeda Naokado, Yamada Makoto, Yokoyama Kunio, Sugie Akira, Ito Yutaka, Tanaka Hidekazu
Аннотация
BACKGROUND: Stand-alone spinous-process fixation devices have been used as a minimally invasive option for selected lumbar degenerative conditions. However, very late implant-bone interface failure is not well documented in the clinical literature.
CASE DESCRIPTION: A 54-year-old male without osteoporosis underwent stand-alone clamp-type metallic interspinous fixation at the L4/5 level for axial low back pain with stable Grade I degenerative spondylolisthesis. Fourteen years later, he developed severe motion-provoked focal pain at the prior surgical site. Dynamic radiographs demonstrated marked bony erosion/osteolysis at the instrumented level with implant malfunction. Implant removal resulted in substantial symptom relief.
CONCLUSION: This case highlights very late failure of stand-alone clamp-type metallic interspinous fixation device at the L4/5 level. Studies revealed progressive peri-implant osteolysis/erosion with loosening causing mechanical low back pain. The failure of this interspinous device underscores the need for long-term patient surveillance following the placement of a stand-alone interspinous process fixation device.
CASE DESCRIPTION: A 54-year-old male without osteoporosis underwent stand-alone clamp-type metallic interspinous fixation at the L4/5 level for axial low back pain with stable Grade I degenerative spondylolisthesis. Fourteen years later, he developed severe motion-provoked focal pain at the prior surgical site. Dynamic radiographs demonstrated marked bony erosion/osteolysis at the instrumented level with implant malfunction. Implant removal resulted in substantial symptom relief.
CONCLUSION: This case highlights very late failure of stand-alone clamp-type metallic interspinous fixation device at the L4/5 level. Studies revealed progressive peri-implant osteolysis/erosion with loosening causing mechanical low back pain. The failure of this interspinous device underscores the need for long-term patient surveillance following the placement of a stand-alone interspinous process fixation device.