Hip Dysplasia

Hip Dysplasia

Fig. 8.63 On the right a full-blown hip dysplasia is present. The acetabular angle is too steep, the femoral head is only partially covered. On the left a correction osteotomy of the acetabular bone has been performed. Now the head is covered to a greater extent but it is also flattened. Premature degeneration of this joint is very probable.

Fig. 8.63 On the right a full-blown hip dysplasia is present. The acetabular angle is too steep, the femoral head is only partially covered. On the left a correction osteotomy of the acetabular bone has been performed. Now the head is covered to a greater extent but it is also flattened. Premature degeneration of this joint is very probable.

• Diagnosis: The two students are quite sure that l'il Rumsfeld has a case of Legg-Calve-Perthes disease on the right. If any doubt remained, MRI would bring certainty. But what on earth is the reason for Mrs. Hatburn's problem? None of the described infantile precursor diseases seems to have been present. Giufeng and Hannah are still staring at Mrs. Hatburn's radiograph and scratching their heads as Gregory turns the corner: "Hey, got any problems, the two of you?" he grins and plunges into a chair beside Giufeng. "Well, we have just been waiting for you, Greg Darling!" snorts Giufeng. "This doesn't look like a normal osteoarthritis to you, does it?" Gregory straightens up, collimates the radiograph on the viewbox with painstaking care, and contemplates the findings for a while. "Oh, Giu, you've learned so much from me in such a short time," he hums and leans back again. "You're quite right. This is indeed not a normal osteo of the hip. The joint is degenerated before its time because the bone is structurally weakened. Compare it to the other side and you see the typical textile or woven bone pattern of Paget disease on the abnormal side. Nice case, girls!" Giufeng does not know whether she should be thankful or close her eyes in disgust. Hannah makes an obscene gesture behind Greg's back. Let us leave the scene before Gregory gets into any more trouble. Had you thought of that diagnosis already?

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