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Objective To investigate the feasibility and effects of endoscopic surgical treatment of lumbar intervertebral disc herniation associated with veitebral osteochondrosis.Methods From June 2008 to December 2015,276 cases of lumbar intervertebral disc herniation associated with vertebral osteochondrosis were treated with endoscopic surgery,including 185 men and 91 women,with an average 39.2 years old (range,16-65 years old).The involved level included L2.3 in 2 cases,L3.4 in 9 cases,L4,5 in 126 cases and L5S1 in 139 cases.On preoperative axial CT,the diameter of ossification was more than half of the transverse or sagittal diameter of the spinal canal in 89 cases,and no more than half of the transverse and sagittal diameter of the spinal canal in 187 cases.All patients were operated on the side with serious symptom,181 cases were operated with mobile microendoscopic discectomy (MMED),and 95 cases were operated with percutaneous endoscopic surgery,including percutaneous transforaminal endoscopic discectomy (PTED) in 61 cases and the percutaneous interlaminar endoscopic discectomy (PIED) in 34 cases.The operation and complications were analyzed.Results The soft herniation,broken disc material and the periphery of compressing ossification were removed under the endoscope in all cases,until the nerve was well decompressed.However,the ossification was not complete resected.Dural sac tear occurred in 3 cases of MMED.In the early stage of PTED,2 cases converted to MMED because of intraoperative pain and difficulty,and one case had exiting nerve root injury.At the final follow-up of 12-60 months (average,20.6 months),visual analogue scale decreased from preoperative 8.5±1.2 to 1.0±0.9,Oswestry disability index decreased from preoperative 40.2±8.6 to 3.1±3.0.According to Macnab scale,the results were excellent in 89,good in 154 cases,moderate in 33 cases.Conclusion For most lumbar intervertebral disc herniation associated with vertebral osteochondrosis,good results can be achieve by removal of herniated and broken intervertebral disc and decompression of nerve with endoscope.Therefore,we speculate that the soft disc herniation and spinal stenosis are main pathogenic factors,and that the complete resection of ossification is not needed.
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OBJECTIVE: To evaluate the reliability and reproducibility of Farfan modified and Frobin methods to measure the intervertebral disc height in radiographs with inter- and intraobserver comparison. METHOD: Six radiographs of different patients treated for low back pain have been collected and digitized, and five lumbar disc of each patient were evaluated by six examiners with different levels of experience. The measures were done in Image Pro Plus 6.0 software. RESULTS: When compared, both methods showed more than 95% concordance. In intraexaminer analysis, both also shown to be reliable and reproducible, with a high level of concordance. By comparing the correlation between classes of examiners, the higher the level of experience, the greater the agreement for both methods. CONCLUSION: Farfan modified and Frobin are reliable methods to measure the disc height in the lateral radiographs. The higher level of experience of the examiner, the higher was the correlation between measurements. .
OBJETIVO: Avaliar a confiabilidade e reprodutibilidade dos métodos de Farfan modificado e de Frobin, para aferição da altura radiográfica dos discos intervertebrais lombares, em comparação inter e intraobservadores. MÉTODO: Foram coletadas e digitalizadas imagens radiográficas de seis pacientes em acompanhamento ambulatorial por lombalgia, sendo avaliados cinco discos lombares de cada paciente. As mensurações foram realizadas no software Image Pro Plus versão 6.0, por seis examinadores com diferentes níveis de experiência. RESULTADOS: Ao serem comparados entre si, os métodos demonstraram concordância superior a 95%. Na análise intraexaminadores, ambos também demonstraram ser reprodutíveis e confiáveis com alta concordância. Ao comparar a concordância entre as classes dos examinadores, quanto maior o nível de experiência maior foi a concordância em ambos os métodos. CONCLUSÃO: Tanto o método de Farfan modificado quanto o de Frobin, podem ser utilizados de forma confiável para avaliar a altura discal nas radiografias em perfil. Quanto maior o nível de experiência do examinador, mais alta foi a concordância entre as aferições. .
OBJETIVO: Evaluar la confiabilidad y reproducibilidad de los métodos de Farfan modificado y Frobin para medición de la altura radiográfica de los discos intervertebrales lumbares por comparación inter e intraobservadores. MÉTODO: Imágenes radiográficas fueron recogidas y digitalizadas de 6 pacientes con queja de dolor lumbar; fueron evaluados cinco discos lumbares de cada paciente. Las mediciones fueron realizadas en el software Image Pro Plus versión 6.0, por seis examinadores con diferentes niveles de experiencia. RESULTADOS: Al ser comparados entre sí, los métodos demostraron concordancia superior a 95%. En el análisis intraexaminador, ambos métodos también se demostraron reproductibles y confiables con alta concordancia. Al comparar la concordancia entre las clases de los examinadores, cuanto mayor el nivel de experiencia mayor fue la concordancia entre ambos métodos. CONCLUSIÓN: Tanto el método de Farfan modificado como el de Frobin, pueden ser utilizados de forma confiable para evaluar la altura discal en las radiografías en perfil. Cuanto mayor el nivel de experiencia del examinador, mayor la concordancia entre ambas mediciones. .