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1.
Journal of Central South University(Medical Sciences) ; (12): 688-692, 2008.
Article Dans Chinois | WPRIM | ID: wpr-814014

Résumé

OBJECTIVE@#To observe the effect of daily low-intensity pulsed ultrasound (LIPUs) therapy on improving the enchondral bone formation in lumbar fusion in rabbit models, and to explore its possible mechanism.@*METHODS@#Posterolateral noninstrumented bilateral fusions were performed at the L5 approximately L6 levels in 20 New Zealand rabbits. The autograft iliac bone was implanted on the left side, and the hydroxyapatite bioceramic artificial bone on the right. The rabbits were divided into a treatment group and a control group randomly. One week after the surgery, LIUPs was administered for 20 minutes per day for 4 weeks over the fusion site in the treatment group and false treatment was used in the control group. Post-anterior X-ray photographs were taken to determine the conditions of fusion area, and then, rabbits were killed and the fusion tissues were obtained. Chondrocytes were detected by histological and cytological methods.@*RESULTS@#Compared with the control group, the fusion rate of the treatment group was significantly up-regulated (P0.05).@*CONCLUSION@#Low-intensity pulsed ultrasound therapy improves the endochondral bone formation in the lumbar spine fusion in rabbit models.


Sujets)
Animaux , Femelle , Mâle , Lapins , Chondrocytes , Biologie cellulaire , Durapatite , Utilisations thérapeutiques , Ilium , Transplantation , Vertèbres lombales , Chirurgie générale , Ostéogenèse , Effets des rayonnements , Répartition aléatoire , Arthrodèse vertébrale , Méthodes , Ultrasonothérapie , Méthodes
2.
Journal of Central South University(Medical Sciences) ; (12): 693-699, 2008.
Article Dans Chinois | WPRIM | ID: wpr-814013

Résumé

OBJECTIVE@#To investigate the effect of tetramethylpyrazine on spinal cord repair through hypothesized pathways including regulation of caspase-3, neurofilament protein NF-L, NF-H, and NF-M expression.@*METHODS@#Allenos weight drop method was used to establish acute spinal cord injury (SCI) rat model at T10 section and was conducted in 80 adult Sprague Dawley rats that were subsequently divided into pseudo-therapy group (sodium chloride group, n=40) and tetramethylpyrazine group (treatment group, n=40). Eight normal rats were included into the pseudo-surgery normal group (n=1 for each time point). The function of spinal cord was evaluated with animal behavioral scores by measuring modified Rivilin loxotic plate degree and counting BBB score at 1, 3, 7, 14, and 21 d postoperatively. The injured spinal cord tissue samples were harvested at 1 h, 3 h, 6 h, 1 d, 3 d, 7 d, 14 d, and 21 d postoperatively (n=5 for each time point) for the preparation of continuous histological sections that were analyzed the expression of caspase-3,NF-L,NF-H, and NF-M by immunohistochemistry method.@*RESULTS@#At postoperative Day 7, 14, and 21, animal behavioral scores revealed higher modified Rivlin loxotic plate degree and BBB scores in the treatment group when compared with those of the control group (P<0.05). The cells in the injured spinal cord tissue expressed significantly less caspase-3 and significantly more NF (NF-L, NF-H and NF-M) in the treatment group than those in the control group at Day 3, 7, and 14 (P<0.05). There was positive correlation between modified Rivlin loxotic plate degree and NF expression, BBB score and NF expression; and negative correlations between BBB score and caspase-3 expression, caspase-3 expression and NF expression.@*CONCLUSION@#Tetramethylpyrazine improves spinal cord healing through regulation of caspase-3 and neurofilament protein expression.


Sujets)
Animaux , Femelle , Mâle , Rats , Caspase-3 , Génétique , Régénération nerveuse , Protéines neurofilamenteuses , Génétique , Pyrazines , Pharmacologie , Répartition aléatoire , Rat Sprague-Dawley , Traumatismes de la moelle épinière , Métabolisme
3.
Journal of Central South University(Medical Sciences) ; (12): 512-514, 2007.
Article Dans Chinois | WPRIM | ID: wpr-813850

Résumé

OBJECTIVE@#To investigate the effect of interventional therapy in the treatment of intervertebral space infection.@*METHODS@#The needle was punctured into the infected intervertebral space from the post-lateral side of the spine monitored by X-rays. The pus was drained, the degenerative disc tissues and necrosis tissues were excised and taken out, and at the end a drainaging catheter was put into the space through the needle. The patient should lie in bed absolutely. The antibiotics was injected into the space through the silicon catheter every day. Three to four weeks later, the catheter was removed.@*RESULTS@#All the 8 patients got good results after the therapy. The low back pain was dramatically alleviated instantly at the day of operation. Erythrocyte sedimental rate gradually descended. After 3 approximately 4 weeks of treatment,the catheter was removed.@*CONCLUSION@#Interventional therapy of the intervertebral space infection has notable advantage over the open operation.


Sujets)
Adolescent , Adulte , Sujet âgé , Femelle , Humains , Mâle , Adulte d'âge moyen , Antibactériens , Sédimentation du sang , Disque intervertébral , Imagerie diagnostique , Microbiologie , Ponctions , Méthodes , Radiographie interventionnelle , Méthodes , Spondylite , Imagerie diagnostique , Microbiologie , Thérapeutique , Infections à staphylocoques , Sang , Thérapeutique , Résultat thérapeutique
4.
Journal of Central South University(Medical Sciences) ; (12): 699-701, 2007.
Article Dans Chinois | WPRIM | ID: wpr-813813

Résumé

OBJECTIVE@#To analyze the relation between the clinical outcome and the integrity of the facets after a lumbar operation,and to provide a reference for choosing operative method and clinical prognosis.@*METHODS@#Forty-three patients with complete data underwent uni-segment discectomy were enrolled. There were 3 surgical interventions: open-window discectomy, full or semi-laminectomy. Groups were divided based on the integrity of the facets after the operation, and the clinical symptoms and signs were evaluated using the Japanese Orthopaedic Association Back (JOA) scores at 24-month follow-up.@*RESULTS@#Preoperative JOA scores were not significantly different among the groups (P>0.05). Compared with the facet intact group at 24-month follow-up,JOA scores were descended statistically in total uni-facetectomy group and total uni-facetectomy plus partial opposite facetectomy group (P<0.01).@*CONCLUSION@#Keeping facets integrated plays an important role in achieving good clinical results,and the damage of facet should be avoided in the lumbar operation.


Sujets)
Adolescent , Adulte , Femelle , Humains , Mâle , Adulte d'âge moyen , Jeune adulte , Discectomie , Méthodes , Déplacement de disque intervertébral , Chirurgie générale , Laminectomie , Méthodes , Vertèbres lombales , Articulation zygapophysaire , Chirurgie générale
5.
Journal of Central South University(Medical Sciences) ; (12): 111-113, 2006.
Article Dans Chinois | WPRIM | ID: wpr-813753

Résumé

OBJECTIVE@#To retrospectively explore the diagnosis and treatment of postoperative lumbar intervertebral disc infection.@*METHODS@#Twelve patients who suffered from postoperative lumbar intervertebral disc infection between April 1995 and September 2004 were confirmed doubtlessly by the diagnosis. They were treated with early immobilization combined with early and sufficient antibiotics and adequate corticosteroid. Patients with severe symptoms were managed by percutaneous puncture and washing discectomy such as rising temperature and perivertebral muscle spasm besides nostalgia, and early debridement of all necrotic tissue was done.@*RESULTS@#Six were healed by non-operation and operation in the other 6. All had gotten locomotion with corset after the operation for 6-8 weeks and were followed-up from 6 months to 3 years. They have achieved excellent outcomes.@*CONCLUSION@#When a postoperative disc space infection occurs, early diagnosis and treatment should be undertaken to achieve excellent outcomes.


Sujets)
Adulte , Femelle , Humains , Mâle , Adulte d'âge moyen , Antibactériens , Cortisone , Discectomie , Déplacement de disque intervertébral , Chirurgie générale , Vertèbres lombales , Études rétrospectives , Infection de plaie opératoire , Diagnostic , Traitement médicamenteux
6.
Journal of Central South University(Medical Sciences) ; (12): 427-429, 2006.
Article Dans Chinois | WPRIM | ID: wpr-813680

Résumé

OBJECTIVE@#To compare the advantages and disadvantages among the conventional operative methods with the primary anterior debridement, intercentrum auto grafting, and anterior internal fixation method for the thoracolumbar spinal tuberculosis, and to discuss the applying principle.@*METHODS@#Twenty-seven patients with thoracolumbar spinal tuberculosis were treated by the primary anterior debridement, intercentrum auto grafting, and anterior internal fixation, 8 patients were treated by focus debridement and intercentrum auto grafting operations, and the other 22 patients were treated by focus debridement from Feburary 1998 to July 2003, and we analysed the status of the grafting bone fused, the neural function resumed, the malformation rectified and the whole cure ratio.@*RESULTS@#All patients were cured after the follow-up of 15.2 months averagely. Three thoracic spinal and 1 lumbar spinal tuberculosis patients who suffered local infection were cured by debridement and other managements. The time of beginning active movement postoperatively was shortened, and the degrees of kyphosis correction had increased in the anterior internal fixation group compared with the other two groups (P <0.05). But the cost and the bleeding resulted from operation had increased in the anterior internal fixation group compared with the other two groups (P <0.05).@*CONCLUSION@#The conventional and the modern operation methods of thoracolumbar spinal tuberculosis have respective advantages and disadvantages, so that they can complement rather than replace each other.


Sujets)
Adolescent , Adulte , Sujet âgé , Femelle , Humains , Mâle , Adulte d'âge moyen , Sédimentation du sang , Débridement , Méthodes , Études de suivi , Vertèbres lombales , Chirurgie générale , Procédures orthopédiques , Méthodes , Vertèbres thoraciques , Chirurgie générale , Tuberculose vertébrale , Chirurgie générale
7.
Journal of Central South University(Medical Sciences) ; (12): 607-612, 2006.
Article Dans Chinois | WPRIM | ID: wpr-813638

Résumé

OBJECTIVE@#To explore the curative effect of surgical treatment for lumbar discogenic low back pain.@*METHODS@#Forty-two patients with lumbar discogenic low back pain were treated with disc excision and lumbar interbody fusion: 12 of them were treated with posterior lumbar interbody fusion (PLIF), 30 with afront lumbar interbody fusion (ALIF). The clinical results were evaluated by pre- and post-operative visual analogue scale (VAS), and the fusion rates of the lumbosacral spine were evaluated by X-ray.@*RESULTS@#The average follow-up period was 18 months, ranging from 6 to 36 months. Low back pain basically disappeared in 11 patients treated with PLIF, with mild back pain in one patient; VAS after the operation decreased significantly in comparison with that preoperatively (P<0.01). Low back pain basically disappeared in 28 patients treated with ALIF; VAS after the operation decreased significantly in comparison with that preoperatively (P<0.01). The fusion rate was 90% in patients treated with PLIF, and 93% in patients with ALIF.@*CONCLUSION@#Disc excision and interbody fusion is effective in the treatment of lumbar discogenic low back pain, but the operation indications should be paid attention to.


Sujets)
Adolescent , Adulte , Femelle , Humains , Mâle , Adulte d'âge moyen , Disque intervertébral , Chirurgie générale , Déplacement de disque intervertébral , Chirurgie générale , Lombalgie , Chirurgie générale , Vertèbres lombales , Chirurgie générale , Arthrodèse vertébrale , Méthodes , Résultat thérapeutique
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