Previous studies have demonstrated that deacetyl chitin conduit nerve bridging or electrical stimulation can effectively promote the regeneration of the injured peripheral nerve. We hypoth-esized that the combination ...Previous studies have demonstrated that deacetyl chitin conduit nerve bridging or electrical stimulation can effectively promote the regeneration of the injured peripheral nerve. We hypoth-esized that the combination of these two approaches could result in enhanced regeneration. Rats with right sciatic nerve injury were subjected to deacetyl chitin conduit bridging combined with electrical stimulation （0.1 ms, 3 V, 20 Hz, for 1 hour）. At 6 and 12 weeks after treatment, nerve conduction velocity, myelinated axon number, ifber diameter, axon diameter and the thickness of the myelin sheath in the stimulation group were better than in the non-stimulation group. The results indicate that deacetyl chitin conduit bridging combined with temporary electrical stimu-lation can promote peripheral nerve repair.展开更多
Introduction: Homolateral combined fractures of Monteggia and Galeazzi are very rare. Their treatment is exclusively surgical and should be proposed early in order to restore the anatomy of the antebrachial skeleton, ...Introduction: Homolateral combined fractures of Monteggia and Galeazzi are very rare. Their treatment is exclusively surgical and should be proposed early in order to restore the anatomy of the antebrachial skeleton, pronosupination, and the flexion-extension of the elbow and wrist. Observation: We reported the case of a 45-year-old woman who presented a homolateral fracture of Monteggia and Galeazzi following a road accident. This combination of fractures posed a problem of diagnosis and management. Surgical follow-up presented functional issues. Conclusion: The association of Monteggia and Galeazzi fracture is very rare and poorly reported in the literature. This observation reminds us of the importance of performing a complete clinical and paraclinical assessment before any therapeutic decision.展开更多
Objective: To assess the anatomical and functional results after surgical management of leg shaft mal-union in African environment. Methodology: This was a retrospective study of patients operated for leg mal-union at...Objective: To assess the anatomical and functional results after surgical management of leg shaft mal-union in African environment. Methodology: This was a retrospective study of patients operated for leg mal-union at Brazzaville University Hospital between January 2014 and December 2018. The studied parameters were epidemiological and therapeutic. The anatomical evaluation was based on the quality of the leg’s relaxation and bone healing, which was indicated on standard X-rays. The functional evaluation was based on Thorensen’s criteria. Results: Five patients were selected for this study. There were 3 men and 2 women with an average age of 39 years with extremes of 27 and 59 years. Three patients were treated with locked intramedullary nail and 2 patients with screwed plate. At an average follow-up of 9 months, bone consolidation was achieved in all our patients. The average consolidation time was 4 months (range 3 to 7 months). We noted 1 case of residual mal-union in valgus (5°) on screwed plate and 1 case of valgus angulation (5°) on locked intramedullary nail. Walking was considered normal in 3 patients. The wearing of a 2 cm heel was indicated in 2 patients. According to Thorensen’s criteria, the overall results were considered good in 3 patients and average in 2 patients. Conclusion: Leg shaft mal-union are likely to cause serious functional issues. Their treatment is strictly surgical and osteotomy is the only management option to restore the anatomy of the deformed limb.展开更多
基金funded by National Program on Key Basic Research Project of China(973 Program),No.2014CB542200the National Natural Science Foundation of China,No.31171150,31271284,30801169+2 种基金the Chinese Educational Ministry New Century Excellent Talent Support Project,No.BMU20110270the Beijing City Science&Technology New Star Classification,No.2008A010the Ministry of Education New Teachers of Institutions of Higher Learning Doctoral Fund,No.20070001780
文摘Previous studies have demonstrated that deacetyl chitin conduit nerve bridging or electrical stimulation can effectively promote the regeneration of the injured peripheral nerve. We hypoth-esized that the combination of these two approaches could result in enhanced regeneration. Rats with right sciatic nerve injury were subjected to deacetyl chitin conduit bridging combined with electrical stimulation （0.1 ms, 3 V, 20 Hz, for 1 hour）. At 6 and 12 weeks after treatment, nerve conduction velocity, myelinated axon number, ifber diameter, axon diameter and the thickness of the myelin sheath in the stimulation group were better than in the non-stimulation group. The results indicate that deacetyl chitin conduit bridging combined with temporary electrical stimu-lation can promote peripheral nerve repair.
文摘Introduction: Homolateral combined fractures of Monteggia and Galeazzi are very rare. Their treatment is exclusively surgical and should be proposed early in order to restore the anatomy of the antebrachial skeleton, pronosupination, and the flexion-extension of the elbow and wrist. Observation: We reported the case of a 45-year-old woman who presented a homolateral fracture of Monteggia and Galeazzi following a road accident. This combination of fractures posed a problem of diagnosis and management. Surgical follow-up presented functional issues. Conclusion: The association of Monteggia and Galeazzi fracture is very rare and poorly reported in the literature. This observation reminds us of the importance of performing a complete clinical and paraclinical assessment before any therapeutic decision.
文摘Objective: To assess the anatomical and functional results after surgical management of leg shaft mal-union in African environment. Methodology: This was a retrospective study of patients operated for leg mal-union at Brazzaville University Hospital between January 2014 and December 2018. The studied parameters were epidemiological and therapeutic. The anatomical evaluation was based on the quality of the leg’s relaxation and bone healing, which was indicated on standard X-rays. The functional evaluation was based on Thorensen’s criteria. Results: Five patients were selected for this study. There were 3 men and 2 women with an average age of 39 years with extremes of 27 and 59 years. Three patients were treated with locked intramedullary nail and 2 patients with screwed plate. At an average follow-up of 9 months, bone consolidation was achieved in all our patients. The average consolidation time was 4 months (range 3 to 7 months). We noted 1 case of residual mal-union in valgus (5°) on screwed plate and 1 case of valgus angulation (5°) on locked intramedullary nail. Walking was considered normal in 3 patients. The wearing of a 2 cm heel was indicated in 2 patients. According to Thorensen’s criteria, the overall results were considered good in 3 patients and average in 2 patients. Conclusion: Leg shaft mal-union are likely to cause serious functional issues. Their treatment is strictly surgical and osteotomy is the only management option to restore the anatomy of the deformed limb.
