Biomedical subjects

M Kronberg

Publications and source records attributed to M Kronberg.

22 records · Page 2Linked to original sources

PubMed1989

Lymphangiosarcoma in chronic hereditary oedema (Milroy's disease).

Lymphangiosarcoma arising in chronic lymphoedema is extremely rare. In a reference population of about four million people, during a thirty year period (1957-1987), only four patients were treated for such a tumour. The neoplasm is almost exclusively seen in elderly patients after mastectomy but in two of our patients, reported in this paper, it arose in chronic hereditary oedema (Milroy's disease). In both these patients there was a considerable treatment delay because of wrong diagnosis. The tumour extent was difficult to assess macroscopically and ablative surgery had to be a disarticulation of the involved extremity. Macular or papular purple lesions in a lymphoedematous extremity should be a manifestation of this aggressive neoplasm.

Adult↗

PubMedDate not supplied

Shoulder function after displaced fractures of the proximal humerus.

It is difficult to predict the outcome of comminuted fractures of the proximal humerus and give guidelines for optimal treatment. Different treatment modalities are available, and there are various scoring systems for postoperative evaluation. The aim of this study was to assess the functional outcome after three- and four-part fractures of the humeral head in 38 patients, with a 3-year follow-up. Twenty-eight patients were treated conservatively, seven were operated on with open reduction and internal fixation, and three received a hemiarthroplasty. All patients were examined clinically and radiographically. Neer and Constant scoring systems were used. The functional outcome after three-part fractures was generally good. Twenty-five of 26 patients with a three-part fracture could accept their shoulder situation. Range of motion was significantly lower in the four-part fracture group. Mean flexion was 89 degrees compared with 120 degrees in the three-part fracture group. Necrosis of the humeral head was found in 2 cases, both four-part fractures. Osteoarthrosis developed in 13 cases (6 with a three-part fracture, 7 with a four-part fracture). No disability was found in 16 of 24 patients with three-part fractures, and in 4 of 11 patients with four-part fractures. There was strong agreement between the Constant score and the patients' opinions.

Activities of Daily Living↗

PubMedDate not supplied

Shoulder function after surgical repair of rotator cuff tears.

Shoulder function was assessed in 37 patients with a mean age of 57 years after acromioplasty and repair of full-thickness rotator cuff tears were performed. The cuff tears were closed without transfer of other muscles or use of synthetic materials. At review 2 years after surgery 32 patients had significant pain relief and improved shoulder function. Range of motion, muscle strength, and endurance were increased. The mean Constant score was 77, and 80% of the patients were graded as having mild or disability. Radiographic measurements disclosed an increased supraspinatus outlet area after surgery. It is concluded that in patients with impingement syndrome and a full-thickness rotator cuff tear, shoulder function will be improved after acromioplasty and cuff repair, but a slight decrease in range of motion and muscle strength will remain when compared with the contralateral side.

Adult↗

PubMedDate not supplied

Radiologic assessment of humeral head retroversion. Description of a new method.

A radiologic method for assessment of the humeral head retroversion angle has been developed using one radiograph obtained in the semi-axial view. Validity and reliability of the method has been tested. In five healthy volunteers both shoulders were examined both with CT and with the new radiographic method. The average difference in angle determinations between the methods was 1.5 degrees and the maximum difference was 2 degrees. Angle determination on radiographs from 22 healthy shoulders was performed by two independent radiologists. The coefficient of variation for intraobserver measurements was 2.8 per cent and for interobserver measurements it was 4.6 per cent. Three isolated humerus bones were examined in multiple semi-axial projections and the humeral head retroversion was measured. The effect of humeral position (flexion, extension, abduction) on angle assessments was analyzed. A method error exceeding 2 degrees was only seen when the specimens were in an extended or extremely abducted position. It is concluded that with the arm in the correct position measurements of humeral head retroversion can be performed with this method with high accuracy.

Adult↗