[The use of hydroxyapatite substance for the ostheosynthesis after comminuted thigh fractures].

The surgical tactics was analyzed in 102 patients operated on the comminuted thigh fractures. 95 patients were administered in a state of shock; 48 patients had multiple and combined injuries. All patients were operated on with the use of modern metal constructions. Bone fragments' fixation was performed with the use of splint (n=75) or adaptive ostheosynthesis (n=27), in aggreagation with the "KollapAn" fixation substance. Excellent results were acquired in 64 patients, good - in 25 patients and satisfactory - in 12 patients. The long-term results after the year were obtained in 82 patients. The results of the follow-up coincided with those, achieved in postoperative rehabilitation period.

[Surgical tactics in treatment of cervical spine injuries].

Surgical tactics were analyzed in 1350 patients with cervical spine injuries treated during 1972-2009 years. In 80% of cases injuries were caused by car accidents. 855 patients were admitted in acute or early period of trauma. In other cases old injuries were observed. Vertebral neurological syndromes were revealed in most cases and were absent only in 80 patients. All patients were operated using anterior access. Authors consider that reposition of dislocated vertebras can be carried out in acute and early periods of trauma. Unsuccessful reposition, fractures or fracture-dislocations with spinal stenosis served as indications for transcorporal spinal decompression. This operation is considered to be a method of choice for late periods of trauma. Stabilization of spinal column was achieved using carbonic implant (950 patients), bone auto-transplant (400) combined with utilized auto-bone (960) or biocomposite material "KollapAn" (390 patients). Good results were achieved in 1150 patients, satisfactory - in 190, poor - in 10 patients. Long term results with catamnesis more than 25 years were traced in 120 patients. Results were not revalued.

[Replacement of cervical vertebrae by carbon implants]. / Zameshchenie sheinykh pozvonkov uglerodnymi impplantatami.

The cervical vertebrae were replaced by carbon implants in 60 patients; carbon synthetic foam was used in 19 of them and composite material based on carbon (ostec) in 41. The biological and mechanical properties of the implants ensured firm stabilization of the spine and excluded the danger of postoperative kyphosis and destruction of the vertebral bodies by the implant.

[Anterior decompression and spondylodesis with polymer fixation in the treatment of injuries of the cervical vertebrae]. / Peredniaia dekompressiia i spondilodez s polimernoi fiksatsiei v lechenii povrezhdenii sheinykh pozvonkov.

Indications for anterior-access surgery at different dates after cervical vertebral injury are listed (420 cases). Methods of spine stabilization, using polymer substances (bone cement or bone glue) are described. Complete or partial regression of paresis resulted in 86% of the patients. In tetraplegic patients, the regression of neurologic symptoms was complete in 12% and partial in 55%; there was no effect in 26%, and the mortality rate was 7%.

[Cervical myelopathy caused by ossification of the posterior longitudinal ligament]. / Sheinaia mielopatiia, obuslovlennaia ossifikatsiei zadnei rodo'lnoi sviazki.

The clinical material presented by the authors includes 24 observations of patients with ossification of the posterior longitudinal ligament. In all cases there was a cervical spine injury in the patients', past history. The diagnosis was confirmed roentgenologically and by the method of computer tomography. The treatment is surgical and consists in anterior decompression of the spinal cord. Recovery was observed in 10 patients (42 +/- 10%), partial regress of myelopathy in 9 patients (29 +/- 10%) and discontinuation (12 +/- 6%); there was no effect in 2 patients of progress of the disease in 3 patients (8 +/- 6%) patients. The authors consider it is necessary to make a careful examination of the patients with myelopathy having a cervical spine injury in their past history in order to reveal ossification of the posterior longitudinal ligament and carry on timely surgical treatment.

[Stabilization of the cervical spine with biocompatible polymer implants]. / Stabilizatsiia sheinogo otdela pozvonochnika biosovmestimymi polimernymi implantatami.

The authors have used grafts for stabilization of the spine in 16 patients including 12 patients after anterior decompression of the spinal cord and in 4 patients with spondylodesis. The grafts were used in combination with osteoplasty with autografts taken after resection of the vertebral bodies. The osseous block took place on the average 4 weeks earlier as compared with auto--and allobone owing to the autografts. Biodestruction and substitution of the allograft by bone tissue went on without kyphosis formation on the operation level.