Meniscotomy and its End-result for the internal Derangement of Knee Joint
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概要
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During 4 years, 1947 to 1950, in this department meniscotomy for the internal derangement of knee joint was carried out for 32 of patients and 37 cases which are classified into 7 cases of the internal semilunar cartilage and 30 cases of the lateral. All cases, treated conservatively but failed, still complained of pain and discomfort of the knee, and 93% of them "snapping" or "crackling" detected. Before operation, the conditions were examined by the pneumoarthrography after the method of Amako, and the menisci were in 33 cases totally, in 4 cases partially resected. 21 menisci were discoid, 4 menisci thickend, and 7 menisci teared. Patients were allowed to walk 2 weeks after operation.All of 18 patients (20 joints), elapsed over a year after the operation, improved, except for 4 cases showed the slight pain after long walking or hardward, and went back to their job. The crackling on the operated joints were recognized in 10 cases (50%), trivial and not caused the disability and pain of the joint.After all, 80% of the operations showed a satisfactory result. Accordingly, it is the author's opinion that the immediate surgical excision of the cartilage after the pneumoarthrography, is done to internal derangement of the knee, "snapping" and so prolonged disorders. In about 1/3 cases of them after operation, the regeneration seemed to be appeared in X-ray photograph (pneumoarthrography), but I will be discussed in the future the regeneration of excised cartilage.
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