Bilateral isolated C5 paralysis of the shoulder: Atypical presentation of a transdiscal C4-C5 cervical spine fracture.

After a low-energy fall, an 83-year-old man presented with bilateral weakness of the upper arms without loss of sensation associated with a rigid cervical spine (ankylosing spinal disorder, ASD). Because of an atypical presentation during history, examination and initial imaging, a late diagnosis of a transdiscal C4-C5 fracture was made by dynamic radiographs. Anterior cervical discectomy and fusion were performed with delay.

The steps until surgery in the management of Baastrup's Disease (kissing spine syndrome).

Baastrup's disease is a rare condition of the vertebral column often misdiagnosed and wrongly treated due to poor knowledge, characterized by low back pain arising from the close approximation of adjacent posterior spinous processes and resultant degenerative changes. Diagnosis rests on clinical examination and detailed imaging studies. Proposed therapies include conservative treatment, percutaneous infiltrations or surgical therapies.

Pedicle Screw Insertion Accuracy Using O-Arm, Robotic Guidance, or Freehand Technique: A Comparative Study.

Study Design: A retrospective radiological study.

Objective: The aim of this study was to evaluate the accuracy of pedicle screw insertion using O-Arm navigation, robotic assistance, or a freehand fluoroscopic technique.

Summary Of Background Data: Pedicle screw insertion using either "O-Arm" navigation or robotic devices is gaining popularity.

Tarlov Cyst: A diagnostic of exclusion.

Tarlov cysts were first described in 1938 as an incidental finding at autopsy. The cysts are usually diagnosed on MRI, which reveals the lesion arising from the sacral nerve root near the dorsal root ganglion. Symptomatic sacral perineural cysts are uncommon and it is recommended to consider Tarlov cyst as a diagnostic of exclusion.

[What is the role of surgery in low back pain associated with Modic changes?].

Benign low back pain is frequent in the lucratively active population. Degenerative changes are considered the most frequent causes. The identification of pain generators remain challenging.