Humans ; Lumbar Vertebrae ; surgery ; Spinal Stenosis ; complications ; surgery

BACKGROUND: A systematic literature review of interspinous dynamic stabilization, including DIAM, Wallis, Coflex, and X-STOP, was conducted to assess its safety and efficacy. METHODS: The search was done in Korean and English, by using eight domestic databases which included KoreaMed and international databases, such as Ovid Medline, Embase, and the Cochrane Library. A total of 306 articles were identified, but the animal studies, preclinical studies, and studies that reported the same results were excluded. As a result, a total of 286 articles were excluded and the remaining 20 were included in the final assessment. Two assessors independently extracted data from these articles using predetermined selection criteria. Qualities of the articles included were assessed using Scottish Intercollegiate Guidelines Network (SIGN). RESULTS: The complication rate of interspinous dynamic stabilization has been reported to be 0% to 32.3% in 3- to 41-month follow-up studies. The complication rate of combined interspinous dynamic stabilization and decompression treatment (32.3%) was greater than that of decompression alone (6.5%), but no complication that significantly affected treatment results was found. Interspinous dynamic stabilization produced slightly better clinical outcomes than conservative treatments for spinal stenosis. Good outcomes were also obtained in single-group studies. No significant difference in treatment outcomes was found, and the studies compared interspinous dynamic stabilization with decompression or fusion alone. CONCLUSIONS: No particular problem was found regarding the safety of the technique. Its clinical outcomes were similar to those of conventional techniques, and no additional clinical advantage could be attributed to interspinous dynamic stabilization. However, few studies have been conducted on the long-term efficacy of interspinous dynamic stabilization. Thus, the authors suggest further clinical studies be conducted to validate the theoretical advantages and clinical efficacy of this technique.
Decompression, Surgical ; Humans ; Postoperative Complications ; *Spinal Fusion/adverse effects/methods ; Spinal Stenosis/physiopathology/surgery

PURPOSE: The elderly patients have been known for high incidence of postoperative complications following a lumbar fusion surgery. This study was conducted to determine the results of clinical outcomes after a lumbar fusion surgery in patients older than 75 years and to compare with those in patients between 65 and 74 years old. MATERIALS AND METHODS: One hundred twenty-five patients who underwent lumbar fusion were enrolled. The mean follow-up was 22.5+/-15.7 months. Preoperative diagnosis was spinal stenosis in 113 patients and degenerative spondylolisthesis in 12 patients. Revision surgery or multi-level spinal fusion (>4 segments) was excluded. There were 27 patients in group A (>75 years) and 98 patients in group B (65-74 years). Preoperative American Society of Anesthesiologists (ASA) scores, visual analog scale (VAS), Oswestry disability index (ODI), postoperative complications, and bone union rate were compared. RESULTS: The mean age was 78.6 years and 68.8 years in Group A and Group B, respectively. The mean preoperative ASA score was statistically different between group A and group B (p=0.025). The mean bone mineral density T score in group A was higher than that in group B (p=0.002). The mean VAS did not show a difference between the groups (p=0.171). There was no difference in the mean ODI between the groups in the improvement of VAS and ODI. The major and minor complications of early complications and late complications were observed without any statistical difference. CONCLUSION: Although preoperative ASA score was higher and osteoporosis was severe in the elderly patients (>75 years old), the improvement of clinical outcome was satisfactory as much as younger patients (65-74 years old) following a lumbar fusion surgery for degenerative spinal disease.
Aged ; Bone Density ; Follow-Up Studies ; Humans ; Incidence ; Osteoporosis ; Postoperative Complications ; Spinal Diseases ; Spinal Fusion ; Spinal Stenosis ; Spine ; Spondylolisthesis

STUDY DESIGN: A retrospective study. OBJECTIVES: To analyze and compare the clinical results of different surgical methods for spinal stenosis, without lumbar instability, in patients over 70 years-old. SUMMARY OF LITERATURE REVIEW: Much controversy exists as to the best operative method for spinal stenosis. MATERIALS AND METHODS: Thirty eight patients that had undergone surgical treatment for spinal stenosis, without lumbar spinal instability, with a mean age of 75.1 years(70 to 91 years) and follow up period was 44 months(24 to 52 months), were retrospectively reviewed. The patients were divided into two groups: * Group A (n=23): posterior decompression alone * Group B (n=15): posterior decompression and posterolateral fusion Clinical outcome and satisfaction were assessed using Bohlman's measurements, on a 10 point pain rating scale, and the clinical outcomes were further analyzed according to the co-morbidity and postoperative complications. RESULTS: Clinically excellent and good outcomes were achieved in 86.9 and 80.0% in groups A and B, respectively. The 10-points pain scale for low back pain showed improvements in both groups. The co-morbidity did not influence the clinical outcome in either group. There were no serious postoperative complications in either group. CONCLUSIONS: Posterior decompression alone was an effective surgical method, and was found to be equivalent to posterior decompression and posterolateral fusion in patients over 70 years-old with degenerative lumbar spinal stenosis and without lumbar spinal instability.
Aged* ; Decompression ; Follow-Up Studies ; Humans ; Low Back Pain ; Postoperative Complications ; Retrospective Studies ; Spinal Stenosis*

STUDY DESIGN: This is a retrospective study. OBJECTIVES: The purpose of this study is to decrease the frequency of the postoperative complications and to improve the postoperative clinical outcomes for the elderly patients with lumbar spinal stenosis. Summery of Literature REVIEW: Many controversies exist about postoperative complication and its influencing factors in the elderly patients suffering with lumbar spinal stenosis. MATERIALS AND METHODS: We reviewed the hospital records of 213 patients who underwent decompression and posterolateral fusion between February 1, 1998 and December 31, 2003 to treat their degenerative lumbar spinal stenosis. This study was performed, to assess and compare the postoperative complications and clinical outcomes of surgical management for the patients over 65 years (Group A) and the patients between 50-64 years (Group B). All the patients had at least a 1-year follow-up evaluation. The factors that could have influenced the complications that resulted within 12 weeks after the operation were evaluated and statistically analyzed. RESULTS: Postoperative complications occurred in 62 patients of Group A and in 40 patients of Group B, of which the major complications occurred in 10 patients of Group A and in 1 patient of Group B and minor complications occurred in 52 patients of Group A and in 39 patients of Group B. A statistical relationship between diabetes and major complications was observed in Group A (p=0.005). While any relationship between age and the frequency of complication in each group was not found, Group A had a higher frequency of major complication than did Group B (p=0.004). CONCLUSIONS: Surgeon should be vigilant about postoperative complications in elderly patients suffering with diabetic mellitus.Elderly patients with diabetic mellitus should be made aware that they are at an increased risk for postoperative complications because of their fragility.
Aged ; Decompression ; Follow-Up Studies ; Hospital Records ; Humans ; Postoperative Complications* ; Retrospective Studies ; Spinal Stenosis*

STUDY DESIGN: This retrograde study was designed to compare the clinical features and postoperative clinical results between diabetic and non-diabetic patients who had been performed decompression and arthrodesis with instrumentation. SUMMARY OF LITERATURE REVIEW: There are controversies in the treatment results of diabetic patients. OBJECTIVE: To identify poor results in the patients of lumbar spinal stenosis accompanied diabetes mellitus and to find out variables influencing postoperative results among diabetics. MATERIALS AND METHODS: We analyzed 27 diabetic patients and sex, age-matched 27 non-diabetic patients who were diagnosed as lumbar spinal stenosis and operated from April, 1995 to December, 1998. In all patients, duration of symtoms, sensory and motor deficits, comorbidity, level of operations were investigated and in diabetics, duration of diabetes, amount of insulin administered before operation and presence of diabetic neuropathy were included. Clinical results, postoperative complications were compared between diabetics and non-diabetics. RESULTS: Considerable improvement was reported by 19(71%) in diabetic group and 21(78%) in non-diabetic group. Complication rate such as of infection and delayed wound healing was not higher in diabetic group than non-diabetic group. Duration of diabetes and amount of insulin before operation did not affected the result of operations. CONCLUSION: The outcome of surgery was similary successful in the two groups.
Arthrodesis ; Comorbidity ; Decompression ; Diabetes Mellitus* ; Diabetic Neuropathies ; Humans ; Insulin ; Postoperative Complications ; Spinal Stenosis* ; Wound Healing

The common etiologies of pneumocephalus, presence of air in the intracranial cavity, are trauma and cranial surgery. Pneumocephalus after spinal surgery is an unusual postoperative complication. We report the case of a male 59-year-old man who developed a pneumacephalus after posterior lumbar surgery for spinal stenosis. Intraoperatively, a cerebrospinal fluid leak following a dural tear was noted and immediately repaired. The next day, the patient complained of headache and dizziness. Head and lumbar computed tomography scans revealed significant air in the frontal region, several cisterns, intraventricle, and extra-dural area in the spine canal. Symptoms were spontaneously resolved within 2 weeks with conservative management.
Cerebrospinal Fluid Rhinorrhea ; Dizziness ; Head ; Headache ; Humans ; Male ; Middle Aged ; Pneumocephalus ; Postoperative Complications ; Spinal Stenosis ; Spine

PURPOSE: This study was aimed to examine the ways to reduce bleeding through minimally invasive multi-segmental fusion by comparing the results of minimally invasive transforaminal lumbar interbody fusion versus those of conventional posterior interbody fusion depending on the number of fused segment. Moreover, the study identified how the new method of fusion contributed to reducing postoperative complications and to fast recovery. MATERIALS AND METHODS: This is a retrospective study conducted on 367 spinal stenosis patients who had been followed up for at least one year (170 patients underwent minimally invasive transforaminal lumbar interbody fusion and 197 patients underwent conventional posterior interbody fusion). The study examined blood loss volume, postoperative drainage volume, operation time, visual analogue scale score, pre- and post-operative levels of protein and albumin, as well as postoperative bed rest period between the two groups. Moreover, the study analyzed the presence of complications during the peri-operative period. RESULTS: The minimally invasive fusion group exhibited a statistically significant decrease in intraoperative bleeding than the conventional infusion group when the number of fused segments in each group was compared. In addition, the difference in the two groups showed a statistically significant increase as the numbers of fused segments rose (p<0.05). On the other hand, a statistically significant increase was shown in the operation time between the minimally invasive fusion group and the conventional fusion group. The difference in the two groups showed a statistically significant increase as the distance of fused segments was extended (p<0.05). CONCLUSION: Minimally invasive transforaminal lumbar interbody fusion is thought to be a useful surgical method to minimize bleeding when the limitations of minimal invasive fusion are supplemented by shortening the operation time.
Bed Rest ; Drainage ; Hand ; Hemorrhage ; Humans ; Postoperative Complications ; Retrospective Studies ; Spinal Stenosis

STUDY DESIGN: The preoperative and postoperative lateral radiograms and clinical results were analyzed in 22 cases of lumbar spinal stenosis with osteoporosis treated by posterior decompression and posterior lumbar interbody fusion. OBJECTIVES: To assess the efficiency of the cage-instrumented posterior lumbar interbody fusion in lumbar spinal stenosis with osteoporosis. SUMMARY OF LITERATURE REVIEW: Problems in surgical treatment of osteoporotic spinal stenosis were early screw loosening and early reversal to the original deformity because of insufficient mechanical stability in the bone-screw interface, and special strategy is essential for transpedicle screwing to sustain axial and screw cut-up load applied by flexion-extension motion in vivo. MATERIALS AND METHODS: We reviewed 22 cases of lumbar spinal stenosis with osteoporosis(Jikei grade I, II/III) from June 1996 to July 1998 with an average follow up period of 1.4 years. Inclusion criteria was combined segmental instability, deformity, spondylolisthesis and herniated nucleus pulposus with significant disc space narrowing. We asssessed the radiographic results of sagittal angle correction(SAC) of the instrumented segment and disc height restoration(DHR) on the preoperative, postoperative and last follow up lumbar lateral views, and clinical results according to the Kirkaldy-Willis criteria. RESULTS: Postoperative mean SAC gain was 10degree(p<0.05) and mean SAC loss at last follow up was 1.1degree(p>0.05). Postoperative mean DHR gain was 21.3%(p<0.05) and mean SAC loss at last follow up was 3.9%(p>0.05). The clinical result was analyzed as 2 excellent(9.1%), 16 good(72.7%), 4 fair(18.2%) and no poor. There were 2 intraoperative complications of a dural tear and a nerve root injury and 2 postoperative complications of a transient radiculopathy and a pseudoarthrosis. CONCLUSIONS: Cage-instrumented posterior lumbar interbody fusion can be an option for the lumbar spinal stenosis with osteoporosis requiring instrumentation because of instability, deformity or postdiscectomy anterior column deficiency.
Congenital Abnormalities ; Decompression ; Follow-Up Studies ; Intraoperative Complications ; Osteoporosis* ; Postoperative Complications ; Pseudarthrosis ; Radiculopathy ; Spinal Stenosis* ; Spondylolisthesis ; Tears

Female ; Humans ; Middle Aged ; Osteitis Deformans ; complications ; diagnostic imaging ; Radiography ; Spinal Stenosis ; complications ; diagnostic imaging ; Thoracic Vertebrae