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Biomedical subjects

J Grimm

Publications and source records attributed to J Grimm.

174 records · Page 10Linked to original sources
PubMedDate not supplied

[Diagnosis of transitory osteoporosis of the hip and its imaging in magnetic resonance tomography].

Magnetic resonance (MR) imaging may distinguish transient osteoporosis of the hip from more severe hip diseases. 12 patients with transient osteoporosis of the hip underwent MR imaging. The initial and follow-up studies included T1- and T2-weighted images in coronal, transverse or sagittal planes. There were revealed 3 stages: diffuse-, focal-, and residual stage. This syndrome is characterized by hip pain, limping, and osteoporosis of the femoral head with preservation of the joint space. The clinical symptoms and abnormalities on MR images disappeared completely within 6-10 months.

Adult↗
PubMedDate not supplied

[Late synovectomy of the elbow and resection of the radius head in chronic polyarthritis].

Between 1974 and 1984 16 patients with rheumatoid arthritis, who had elbow synovectomy and excision of the radial head, were revised with an average follow-up of 5 years after operation. Resection of the radial head was performed on 16 elbows, in 3 elbows the ulnar nerve was transposed. The indication for the operation were pain, swelling, warmth and radiological destruction. The parameters used, to assess efficacy of the operation were range of motion, local finding and patient satisfaction. Synovectomy results were good especially in respect of relief of pain and range of motion. The good results justify elbow synovectomy even in the late stages of disease.

Adolescent↗
PubMedDate not supplied

[Diagnosis of Perthes disease using magnetic resonance tomography].

Lateral displacement of the femoral head and slight flattening are typical radiological signs of early Legg-Calvé-Perthes disease. There is the value of magnetic resonance imaging (MRI) in demonstrating the congruity of the acetabular and femoral articular surfaces, the cartilage, the femoral head containment, intracapsular joint effusion, and hypertrophy synovium without using any ionizing radiation. Loss of containment because of lateralisation seems to be the result of medial hypertrophy of the femoral head cartilage. The hips show a characteristic low-intensity signal in T1-weighted images representative of necrotic areas of the capital epiphysis. The extent of involvement and revascularisation can be identified in Legg-Calvé-Perthes disease.

Acetabulum↗
PubMedDate not supplied

[Results of the surgical treatment of spondylolisthesis and of lumbar and sacral vertebrae which underwent spondylodesis].

Presented are the results after the surgical treatment (CDI) of 25 patients suffering from spondylolisthesis and of 25 patients with a lumbar or a sacral spondylodesis. The mean follow up reaches from 8.4 (spondylolisthesis) to 16.6 months (lumbar and sacral spondylodesis). 15 (60%) of the patients with spondylolisthesis showed an excellent or good result, in 3 (12%) the result was unsatisfactory. Only 7 of the patients of the second group were without further complaints, in 6 an amelioration of pain relief could be reached. The complications demonstrate the fault of the instrumentation in the beginning. After the development of a new screw the monosegmental fusion with CDI can be achieved in spondylolisthesis with a slipping to 70%, in more severe spondylolisthesis bisegmental fusion is necessary. The results in lumbar and sacral spondylodesis demonstrate that the operation should be only performed when all other methods have been unsuccessful.

Female↗
PubMedDate not supplied

[2 cases of humeral head osteolysis of unknown origin].

Taking in account the medical history, the clinical and radiological presentation and the intraoperative and histological findings, two cases of osteolysis of the humeral head of unknown origin are discussed. After exclusion of underlying concomitant diseases a traumatic etiology seemed to be the most probable explanation although in both cases a trauma was denied by the patients. We are unaware of any similar cases published in the literature.

Aged↗
PubMedDate not supplied

[Femur head necrosis. Diagnosis and morphologic analysis using roentgen, scintigraphy, computerized tomography and magnetic resonance tomography].

35 patients with a total number of 53 AVN were examined with conventional radiographs (n = 53), radionuclide scans (n = 37), CT (n = 19) and MRI (n = 53). Findings were classified according to FICAT (stage 0-IV). With a sensitivity of 96.2% and a specificity of 98.1% MRI proved to be the most accurate imaging modality especially in early stages. CT proved to be a reliable technique, too, although accuracy was less compared with MRI. Radionuclide scanning was of minor value with a sensitivity of 62.1% and a specificity of 59.5%. Typical findings with plain radiographs, radionuclide scans, CT and MRI in different stages of AVN are described.

Adult↗