Biomedical subjects

P Michno

Publications and source records attributed to P Michno.

24 records · Page 2Linked to original sources

PubMedDate not supplied

Fixation of slipped capital femoral epiphyses with unthreaded 2-mm wires.

Twenty chronic and three acute-on-chronic slipped capital femoral epiphyses (SCFEs) were fixed with unthreaded 2-mm wires. Nineteen hips were fixed with three wires, and four with four wires. Postoperatively, patients bore full weight after 6 weeks. There were no pin penetrations or cases of chondrolysis. No femoral heads grew off the wires. Fifteen hips showed no change in the head-shaft angle postoperatively. Of the remaining eight, two improved their head-shaft angles in the anteroposterior (AP) view (6,7 degrees), and five improved in the lateral view (6-13 degrees, average, 11 degrees). Two hips worsened in the AP view (9,10 degrees), and none in the lateral view.

Adolescent↗

PubMedDate not supplied

Sequelae from septic arthritis of the knee during the first two years of life.

Fifty septic knees in patients younger than 2 years old at diagnosis were examined. Follow-up ranged from 1.1 to 21.3 years (average, 6.2). Twenty-four knees were deformed in varus or valgus of 5-40 degrees. Deformity was present within 10 months of infection and thereafter was stable. It was due to displacement of the epiphysis into a metaphyseal defect, loss of epiphyseal cartilage, or both. Growth did not compensate for deformity. Ossific nuclei partly or completely disappeared after infection. They were slow to reappear, and until maturity, their size and shape did not represent the cartilaginous epiphysis. Arthrograms were necessary to evaluate accurately the epiphyseal shape and volume.

Adolescent↗

PubMedDate not supplied

Capsulorrhaphy versus capsulectomy in open reduction of the hip for developmental dysplasia.

Capsulorrhaphy and capsulectomy were prospectively compared in open reduction of the hip for developmental dysplasia. There were 39 patients: 16 capsulorrhaphy and 23 capsulectomy. Follow-up averaged 22 months postsurgery. The surgical technique included innominate osteotomy, and femoral shortening and derotation. Avascular necrosis developed in one capsulorrhaphy patient. Postoperative redislocation occurred in three capsulorrhaphy and no capsulectomy patients. Three capsulorrhaphy and three capsulectomy patients had acetabular dysplasia. Neither capsulorrhaphy nor capsulectomy produced superior hip motion at last examination.

Child↗

PubMedDate not supplied

Septic arthritis of the wrist in infancy.

Seven septic wrists in six patients were examined. The average follow-up was 7 years 5 months. The ages at diagnosis ranged from 3-145 days. All patients had one or more joints infected other than the wrist. Three patients cultured organisms. Three wrists were not diagnosed at the time of infection and had no surgical treatment. Four wrists were treated with multiple aspiration. All received antibiotics for 35-48 days. On follow-up no patient complained of pain or lack of function. Combined palmarflexion and dorsiflexion was > or = 50 degrees in all wrists. Two wrists were radiographically normal, whereas five were not. Three of these five had marked distortion of anatomy.

Anti-Bacterial Agents↗

PubMedDate not supplied

Radial-nerve palsy associated with septic shoulder in neonates.

Four neonates presented with septic shoulders after delays in diagnosis of 7-20 days. All lacked active extension of the wrist and thumb, and three lacked active extension of the fingers. Two had positive cultures for Staphylococcus aureus, and one had a positive Escherichia coli culture. Surgical treatment was one single aspiration and three arthrotomies. Recovery of extension began in 10-21 days and was normal at 18-35 days post-treatment. At follow-up 9-13 months later, all limbs were neurologically normal. Cadaver dissections showed that the radial nerve passed close to the shoulder joint, and when the capsule was distended, it impinged on the nerve.

Arthritis, Infectious↗

PubMedDate not supplied

Septic arthritis of the shoulder during the first 18 months of life.

Forty-six septic shoulders in 42 patients < 18 months old at diagnosis were followed for an average of 6 +/- 10 years. Eight were not diagnosed at the time of infection. Five patients complained of intermittent, mild pain with use. All could touch their mouth and back of their head with the hand on their affected side. Flexion and abduction averaged 150 degrees; internal and external rotation averaged 60 degrees. Nineteen percent of the shoulders had < 130 degrees of flexion. Discrepancy in humeral length was 0-9 cm (average 2.4 cm). Only 7% of the humeral heads were entirely normal. The shapes of the remainder were quite variable, and range of motion could not be predicted from these shapes.

Age of Onset↗