[Treatment of osteoporotic vertebral compression fractures with PMMA-augmented pedicle screw fixation].

Background: Over the last few decades many innovative operation technique were developed due to the increase of porotic vertebral fractures. These new techniques aim to reach the required stability of the vertebral column. In case of significant instability, spinal canal stenosis or neural compression, decompressive intervention may be necessary, which results in further weakening of the column of the spine, the minimal invasive percutan vertebroplasty is not an adequate method to reach the required stability, that is why insertion of complementary pedicular screws is needed.

[New surgical technique for atlanto-axial instability: C1-2 dorsal fixation with the screw-rod system].

Objective: It is still challenging to perform the operation for the instability of the C1-C2 junction because of the limited cases, unique anatomical landmarks, the potential or real injury of the neurological elements, the serious clinical state and the special technical and human background is demanding. With the aim of minimalize the risk the following method provide sufficient stability, successful and simple.

Method: The authors used the dorsally implanted screw-rod systems for operating 34 patient with C1-2 instability resulting clinically signs and symptoms.

[Bilateral "over the top" decompression through unilateral laminotomy for lumbar and thoracic spinal canal stenosis].

Objective: The standard surgical procedures used in degenerative thoracic and lumbar spinal canal stenosis allows decompression of the neural structures by unroofing the spinal canal, often resulted in destruction or insufficiency of facet joints, sacrifice the interspinosus/supraspinosus ligament complexes and stripping of the paraspinal muscles altering an already pathologic biomechanical milieu causing segmental instability. Various less invasive techniques exists to save the integrity and prevent the instability of the spine and allow decompression of neural structures located in the spinal canal. The authors discusses the experiences with technique of unilateral laminotomy for bilateral decompression.

[Combined anterior and posterior approach in surgical treatment of tumors at the cervicothoracic junction: our experience].

Introduction: In the past, surgery of the pathologies of cervicothoracic junction carried high risk. Better knowledge of the anatomical situation and the increasing experience with anterior approach, corpectomy and spinal stabilization instruments have all made possible to remove the tumours of the cervicothoracic junction in a combined way.

Case Reports: The authors present six cases of spinal tumours where removal was done via anterior approach with partial clavicle and sternal resection.

Surgery of ventral intradural midline cervical spinal pathologies via anterior cervical approach: our experience.

Introduction: The surgical removal of the cervical intradural pathologies located ventrally carries a high risk. According to the anatomical situation and the increasing experience with anterior cervical approach and corpectomy revealed the reality to remove the ventral midline pathologies this way. The anterior approach which require corpectomy preferable to cervical intradural lesions located ventrally at the midline.