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Objective To analyze the experience of 745 cases of lumbar disc herniation(LDH) and investigate the relevance between the clinical symptoms,signs and operative observation.Methods From 1982 to 2003,745 cases of LDH were treated operatively.In order to investigate the relationship between clinical presentations and operative results,a statistic analysis was conducted using the clinical symptoms,signs and operative observations.Results As the predominant manifestions,the pain in the low back and leg was seen in 96.4% of LDH,the pain aggravated by belly pressure in 93% of LDH,local tenderness and radicular pain around the lumbat spinous process in 70.8% of LDH,rectoleg elevation test(+) in 91.6% of LDH.operation observation:77.6% of LDH was classified as lateral type,10.9% as medial type and 11.5% as rupture or sequestration type.Weakness of extensor hallucis longus could seen in 65.6% of LDH of L_4,L_5,in 32.3% of LDH of L_5S_1.Conclusions Although the extensive usage of computed tomography(CT) and magnetic resonance imaging(MRI) provides a prompt and accurate basis for diagnosis of LDH,the physical examination remains the most important routine way to make a diagnosis.It is suggested that during the diagnosis and treatment of LDH,besides the common features of the disease,some individual presentations should not be neglected in few rare atypical cases,so as to diagnose and treat correctly.
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[Objective]To explore the result of total hip arthroplasty(THA) performed in patients with osteoarthritis secondary to developmental dysplasia of the hip(DDH) and the degree of hip dysplasia on the treatment result. [Method]Forty-seven cases(55 hips) with osteoarthritis secondary to DDH were treated with THA.According to the classification of Crowe,23 hips were in classⅠ,19 in classⅡand 13 in class Ⅲ/Ⅳ.Before operation,the morphological changes of acetabula and femurs were evaluated with helical CT.During the operation,the acetabula were reconstructed at the level of real acetabula,the femoral canal was carefully enlarged and the small and straight femoral protheses were employed.The Harris hip score was conducted in each patients preoperatively and postoperatively.[Result]The Harris hip score in class Ⅰ,Ⅱand Ⅲ/Ⅳ were from 50.7?7.6,44.9?6.2 and 41.1?8.2 preoperative to 90.6?3.7,87.3?4.5 and 82.7?7.3 postoperative,respectively.There was significant difference between them(P