Congenital Absence of the Lumbar Facet Joint Associated With Bilateral Spondylolysis of the Fifth Lumbar Vertebra

Wang, Zhuo; Sakakibara, Toshihiko; Kasai, Yuichi

doi:10.2176/nmc.53.118

Cited by 3 publications

(5 citation statements)

References 18 publications

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“…The congenital defect of the lumbar facet joint is a rare medical abnormality. There have been only 33 recorded cases since 1950 1,3–20 . (Table 1).…”

Section: Discussion and Literature Reviewmentioning

confidence: 99%

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Classification of the Congenital Defect of the Lumbar Facet Joint: Case Report and Literature Review

Wang,

Lin,

Zhao

et al. 2024

Orthopaedic Surgery

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BackgroundCongenital lumbar facet joint defect is a rare congenital developmental disorder with only a few reported cases in the literature, primarily affecting the L5‐S1 segments. This study reports the first case of a defect in the left L3 inferior articular process; and presents a review of the existing literature on the subject, proposes a classification system, and validates the inter‐observer and intra‐observer reliability of this classification system.Case PresentationA 14‐year‐old boy presented to our orthopedic clinic with persistent lower back pain for 1 month. Imaging analysis, including CT scans, 3D reconstruction, and MRI, revealed a congenital lumbar facet joint defect at the L3 level, which has not been reported. Conservative treatment resulted in a significant improvement in his symptoms, and he is currently under follow‐up care.ConclusionCongenital defect of the lumbar facet joint is a rare spinal condition. This article reports the first patient with a defect in the left L3 inferior articular process and conducts a comprehensive literature review, proposing a classification of articular process defects into five types. The two most common types are Types B and C. We have demonstrated that this system is reliable and reproducible and have described the treatment of each type.

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“…The congenital defect of the lumbar facet joint is a rare medical abnormality. There have been only 33 recorded cases since 1950 1,3–20 . (Table 1).…”

Section: Discussion and Literature Reviewmentioning

confidence: 99%

“…There have been only 33 recorded cases since 1950. 1 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 (Table 1 ). The disease affects individuals who have a mean age of 34.4 ± 15.0 years, with roughly equal proportions of males and females.…”

Section: Discussion and Literature Reviewmentioning

confidence: 99%

Classification of the Congenital Defect of the Lumbar Facet Joint: Case Report and Literature Review

Wang,

Lin,

Zhao

et al. 2024

Orthopaedic Surgery

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“…In such a consideration, the abnormally deviated left L5 inferior articular process resembling facet interlocking is considered a congenital deformity because of no abnormal delivery, medical and traumatic history. Additionally, hypoplasia of the left S1 pedicle, which was reported as the coexistence of other facet anomaly, 5 ) suggests this abnormality as congenital deformity.…”

Section: Discussionmentioning

confidence: 99%

“…Several congenital spinal anomalies and their association with systematic anomalies have been reported. 1,2) There are also reports on several types of anomalies at lumbosacral facet joints, such as congenital absence of lumbosacral facet joint [3][4][5][6] and two separate facet joints on the same lumbosacral facet joint, 7) but there are no reports on unilateral lumbosacral facet abnormality resembling "facet interlocking" (Fig. 4).…”

Section: Discussionmentioning

confidence: 99%

Unilateral Lumbosacral Facet Abnormality Resembling Facet Interlocking: A Case Report

Tsujimoto

Hanakita

Miyasaka

et al. 2023

NMC Case Report Journal

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We report a rare case presenting radiculopathy caused by unilateral lumbosacral facet abnormality resembling facet interlocking. The patient was a 57-year-old man with no medical and traumatic history. He began to exhibit numbness below his left ankle followed by pain at the left buttock with no obvious causes. He visited our hospital approximately 1 year after the onset of his symptom. Preoperative images revealed a left lumbosacral facet abnormality resembling facet interlocking. His left S1 nerve root was compressed by the dislocated left L5 inferior articular process and bone fragment. His symptom was consistent with left S1 radiculopathy without an obvious stenosis of the left L5 intervertebral foramen; thus, we performed partial facetectomy of the left L5/S1, posterior decompression of the S1 nerve root tunnel, and removal of bone fragment. After the operation, his symptom completely disappeared with satisfactory result. There are several types of congenital facet anomalies in the lumbosacral facet joint; however, congenital unilateral lumbosacral facet abnormality resembling facet interlocking described in this paper has not been reported. His clinical symptom was completely recovered after simple decompression surgery. In this paper, we report the interesting and unique findings of facet abnormality resembling facet interlocking.

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“…MRI may additionally confirm further pathological changes, for example, nerve root anomaly (conjoined nerve root), [1] pedicular defects, spinal bifida, spinal instability, or hypertrophic contralateral facet. [4] Clinical presentation ese patients are typically asymptomatic, while others may have mild low back pain easily treated with conservative measures. e cases with a neurological deficit due to spinal L5-S1 Bilateral absence of cases instability may be surgically managed, for example, with decompression and/or fusions.…”

Section: Discussionmentioning

confidence: 99%

Congenital absence of a lumbosacral facet joint: A case report

Adsul¹,

Kumar²,

Acharya³

et al. 2020

Surgical Neurology International

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Background: Congenital absence of the lumbosacral facet joint is extremely rare, with only 26 cases reported in the literature. Here, we present a patient with the unilateral absence of the left fifth lumbar inferior articular process and reviewed the relevant literature. Case Description: A 32-year-old gentleman, who had undergone right L4-5 lumbar microdiscectomy 3 months ago now presented with acute low back and left leg pain following a fall. He is now presented with acute low back and left leg pain following a fall. Plain radiographs of the L-S spine revealed an absent left L5–S1 zygapophyseal joint. The magnetic resonance imaging and computed tomography studies additionally confirmed an absent unilateral left L5 lumbar inferior articular process. Conclusion: Patients presenting for lumbar surgery may have unilaterally absent lumbosacral zygapophyseal joints, which may impact the outcome of surgical treatment.

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Congenital Absence of the Lumbar Facet Joint Associated With Bilateral Spondylolysis of the Fifth Lumbar Vertebra

Cited by 3 publications

References 18 publications

Classification of the Congenital Defect of the Lumbar Facet Joint: Case Report and Literature Review

Classification of the Congenital Defect of the Lumbar Facet Joint: Case Report and Literature Review

Unilateral Lumbosacral Facet Abnormality Resembling Facet Interlocking: A Case Report

Congenital absence of a lumbosacral facet joint: A case report

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