Low back pain developed in a 44-year-old woman with a history of rheumatoid arthritis.
Radiographs of the lumbar spine revealed bilateral pedicle defects at L-3, L-4, and L-5, with …

Discussion The radiographic appearance of a retroisthmic cleft was first described by
Brocher [3], who named it and distinguished it from eccentrically located spina bifida …

Vertical cleft through the superior articular process of the lumbar spine: fracture or anomaly?
Page 1 J Neurosurg 53:406-407, 1980 Vertical cleft through the superior articular process of …

This article describes the scintigraphic appearance of both a symptomatic and asymptomatic
retroisthmic cleft in two athletes with low back pain. This lesion, which involves the lamina, is …

The retroisthmic cleft is a rarely diagnosed defect in the lamina of the lumbar spine. It has
always been considered a congenital anomaly. This is the first report we are aware of …

A case of bilateral clefts in the pedicles of the L1 vertebra, diagnosed by computed
tomography, is presented. The differentiation from other clefts located laterally in the neural …

Agenesis of a lumbar pedicle: MR demonstration Page 1 Case note Neuro radiology 9
Springer-Verlag (1991) 33:464 Agenesis of a lumbar pedicle: MR demonstration RN Sener …

A 23-year-old man presented with a 12-month history of low back pain with right sciatica.
There was no history of trauma, strenuous sports activities, or previous low back problems …

A report is given on the controversial subject of vertebral retroposition. The following findings
were obtained:—Vertebral retroposition does occur. It is mainly in the lumbosacral spine, but …

Multiple lower lumbar spondylolyses Page 1 1975, British Journal of Radiology, 48, 866-869
Case reports DOSE (rods) KUNKLER, PB, and RAINS, AJH 1959, (Eds.). Treat- ment of Cancer …