The reported results of compression fractures are poor. These results are not influenced by the severity of compression, the fracture site or the residual deformity. Otherwise, the factors that determine a patient's recovery are unknown. This study wants to identify the factors determining a patient's recovery after surgical treatment of compression fractures of the thoracolumbar spine. Therefore, in 31 surgically treated patients the pre-injury versus the 12-month follow-up differences in back pain, in global outcome and in participation were prospectively recorded. For this, the visual analogue scale for pain (VAS scale) and the Greenough and Fraser low back outcome scale were used. Of the latter scale, the 3 questions pertaining to participation were combined to create a participation subscale. For these differences and for time lost from work multiple linear regressions with combinations of 16 possible predictors were performed.

At one year patients who smoke report a 25% less favorable global outcome and return 2.8 points (out of 10) less closely to their pre-injury pain level than patients who do not smoke. Patients with a fracture at the thoraco-lumbar junction return 3.3 points less closely to their pre-injury level on the VAS scale than those with a lumbar fracture. For each decrease in 1 of the 3 education levels, the patients stay away from work 15 weeks longer. Per degree of sagittal index at follow-up, patients stay 9 days longer at home. For each increase in level of occupation the return to the pre-injury participation level is 10% less favorable. The variability of time lost from work and of recovery of global outcome, pain and participation level explained by our models is 73%, 37%, 25% and 13% respectively.

Smoking, localization of the fracture at the thoraco-lumbar junction and a high pre-existent level of occupation are strong negative predictors for recovery. A lower education level and sagittal fracture deformity at follow-up are negative predictors for sick leave but might also reflect the concerns of the physician when deciding about return to work.

Purpose of the Study. At our Department, we prefer surgical treatment of all patients with Type II and III fractures of the dens, regardless of the age, with the exception of non-displaced fractures or perfectly reduced fractures in young patients. Material and Methods. We treated surgically 28 patients 65 years old and older with dens fractures. The group consisted of 13 men and 15 women with a mean age of 77.4 years (range, 65–90 years). According to the type of treatment, anterior srew fixation or posterior C1–C2 fixation, the whole cohort was divided into 2 groups that were subdivided into two age groups of patients 65–74 years old and 75 years old and older. The age group of patients 65–74 years old included 8 patients with a mean age of 68.5 years and the mean age of the age group of patients 75 and more years old was 81 years. The injury was caused in 22 cases by a fall, in 5 by a car accident. Only in 1 case the injury was caused differently. Neurological deficits were found in three patients, all of them Frankel D type. All patients with injury to the dens underwent radiograph examination in the lateral and transoral projections and CT scan including the sagittal and frontal reconstructions of the atlantoaxial complex and in most cases also MRI examination to eliminate injury to the transverse ligament of the atlas. Based on these examinations, the type of injury was determined and method of treatment indicated. Final retrospective evaluation of the patients was carried out at the interval of 12 to 78 months after the primary surgery (mean 31.3 months) taking into account aetiology of the injury, type of injury, neurological finding, method of treatment, union of the dens fracture line or, where appropriate, C1–C2 fusion, stability of the spine and the final outcome. Statistical analysis was based on X2-test. Results. Comparison of the two age groups showed a statistically significant difference in the mortality (p<0.05), with 0% in the younger group and 40% in the older group. In total, mortality within 6 weeks after the injury accounted for 28.6%. Comparison of surgical techniques revealed 21.4% mortality after anterior screw fixation of the dens and 35.7% mortality after posterior instrumented fusion. The difference was statistically insignificant (p>0.05). Of the 20 surviving patients, 11 were treated with anterior screw fixation and 9 with posterior instrumented fusion. In the two groups there was only one case of nonunion of the dens (9.1%) and one fibrous callus in the region of C1–C2 fusion and the fracture line in the dens (11.1%). The difference was again insignificant (p>0.05). Conclusions. Active surgical treatment conduces considerably to the improvement of the quality of life of elderly patients after dens fractures. Surgical technique should be tailored to the patient's general condition, and osteoporosis and degenerative changes of the spine in particular. Mortality is influenced by the patient's age rather than by the surgical technique used. Elderly patients with a neurological deficit mostly die of associated diseases regardless of the method of treatment

INTRODUCTION. Spinal injuries in children are rare and account for a low proportion of all childhood injuries. Because of higher mobility and elasticity of the spine and a lower body mass in children, spinal injuries are not frequent and represent only 2 to 5 % of all spinal injuries. MATERIAL. All patients from birth to the completed 18th year of age treated in our departments between 1996 and 2005 were included in this study. The patients, evaluated in three age categories (0–9, 10–14, 15–18), were allocated to two groups according to the method of treatment used (conservative or surgical). The information on patients treated conservatively was drawn from medical records; the surgically treated patients were invited for a check-up. RESULTS. During 1996 through 2005, we treated a total of 15 646 patients with injury to the skeleton, aged 0 to 18 years. The spine was affected in 571 cases, which is 3.6 %. We used conservative treatment in 528 (92.5 %) and surgery in 43 (7.5 %) children. The group of patients treated conservatively consisted of 292 boys (55. 3 %) and 236 girls (44.7 %); of these 219 (41.5 %) were in the 0–9 year category, 251 (47.5 %) were between 10 and 14 years and 58 (11 %) were 15 to 18 years old (mean age 10.2 years). The most frequent cause of injury was a fall (277; 52.2 %), then sports activity or games (86; 16.3 %), car accidents (34; 6.4 %) and diving accidents (30; 5.7 %). Pedestrians were injured on 25 occasions (4.7 %) and other causes in 76 patients (14.4 %). Thoracic spine was most frequent (340; 64.4 %), multi-segment injury in 124 patients (23.5 %). The TL spine was affected in 22 patients (4.2 %), and lumbar vertebrae were injured in 28 patients (5.3 %). Injury to the cervical spine, both upper and lower, was least frequent, including 4 (0.8 %) and 10 (1.9 %) patients, respectively. None showed neurological deficit. The surgically treated group included 29 (67.4 %) boys and 14 (32.6 %) girls; two (4.7 %) children were between 0 and 9 years, nine (20.9 %) between 10 and 14 years, and 32 (74.7 %) between 15 and 18 years (mean age 15.1 years). The frequent causes of injury were car accidents and falls in 21 (48.8 %) and 14 (32.6 %) children, respectively. Other causes were infrequent. The upper cervical spine was operated on in five (11.6 %), lower cervical spine in eight (18.6 %), thoracic spine in 13 (30.2 %), TL spine in five (11.6 %) and lumbar vertebrae in 12 (27.9 %) patients. Thirty-six (83.7 %) patients had fractures, five had dislocated fractures (11.6 %) and two (4.7 %) had a dislocation. Neurological deficit was recorded in nine (20.9 %). CONCLUSIONS. Childhood spinal injuries account for only 2 to 5 % of all spinal injuries and for 3.6 % of all skeletal injuries in children. The cervical spine is affected most often in younger children, while the thoracolumbar spine in older children. Multi-segment injuries are typical in the childhood spine, particularly in smaller children. Typically, children show SCIWORA and a more rapid improvement of neurological deficit than adults. Conservative treatment is preferred; surgery before 12 years of age is strictly individual, while after 12 years therapy is similar to that used in adults