How I do it: minimally invasive surgical decompression for lumbosacral extraforaminal stenosis (Far-Out Syndrome).

Subum Lee, Sunghyun Kwon, Seok-Joon Kim, Jun-Hyeok Song

Abstract read

In one paragraph

Article in Acta neurochirurgica, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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4 · The record

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5 · Who and what money

Authors and funding

4 authors.

Subum LeeDepartment of Neurosurgery, Korea University Anam Hospital, Korea University College of Medicine, Seoul, Republic of Korea.

Sunghyun KwonDepartment of Neurosurgery, Korea University Ansan Hospital, Korea University College of Medicine, Ansan-Si, Republic of Korea.

Seok-Joon KimDepartment of Neurosurgery, Jounachim Hospital, 144, Gyeongchun-Ro, Guri-Si, 11924, Gyeonggi-Do, Republic of Korea.

Jun-Hyeok SongDepartment of Neurosurgery, Jounachim Hospital, 144, Gyeongchun-Ro, Guri-Si, 11924, Gyeonggi-Do, Republic of Korea. neurosurgeon@naver.com.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAccurate diagnosis of extraforaminal entrapment of the L5 nerve root, commonly referred to as "far-out syndrome," is challenging due to its unique anatomical characteristics, which differ from those of other lumbar regions. Inadequate decompression may lead to poor outcomes.

methodA minimally invasive paraspinal approach utilizing a tubular retractor was used to decompress extraforaminal entrapment of the L5 nerve root. Procedures and discussions regarding indications, diagnoses, surgical endpoints, and ways to avoid complications were described.

conclusionAdequate decompression requires sufficient resection of the L5 lower vertebral body bony spur, transverse process, and sacral ala as a ventral margin.

Indexed as

Decompression, SurgicalLumbar VertebraeMinimally Invasive Surgical ProceduresRadiculopathySpinal StenosisHumansSacrumBertolotti syndromeFar-out syndromeLumbosacral transitional vertebraMinimally invasive surgeryParaspinal approachPseudoarticulation

Identifiers

PMID40366494

DOI10.1007/s00701-025-06553-0

PMCPMC12078389

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.