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Biomedical subjects

J R Denton

Publications and source records attributed to J R Denton.

31 records · Page 2Linked to original sources

"Missing" femoral condyle: an unusual sequela to neonatal osteomyelitis and septic arthritis.

Growth deformities of the distal femur and unusual gait disturbances were observed in four girls who had had neonatal osteomyelitis and septic arthritis. In each case apparent absence or hypoplasia of one of the femoral condyles, as seen on plain radiographs, was associated with marked genu varum or genu valgum. Arthrography showed the apparently missing condyle to be present in a cartilaginous form, with preservation of the articular surfaces. Based on these findings, surgical treatment was limited to corrective osteotomy.

Arthritis, Infectious↗

Stump fractures in lower extremity amputees.

A series of 23 above-knee and below-knee amputees who sustained an ipsilateral lower extremity fracture was qualitatively evaluated with respect to the nature of the injuries sustained, associated problems, and results of fracture treatment. The overall incidence of these fractures was 3% in a population of lower-extremity amputees. The stump fractures encountered were distal femur fractures and fractures about the hip. More than one fourth of these fractures had an initially missed or 'delayed' diagnosis. Most femur fractures were successfully treated by nonoperative means, and most of the hip fractures were treated operatively. The final rehabilitated status of the dysvascular amputees was the poorest: one half of those who were previous household ambulators remained wheelchair confined postinjury.

Amputation Stumps↗

The medial triplane fracture: report of an unusual injury.

A case report of a medial triplane fracture of the distal tibia is presented, with successful open reduction of the fracture. The injury occurs across three planes, with medial and posterior displacement. Anatomic reduction is necessary to prevent articular surface incongruity or a growth disturbance.

Child↗

A complex Lisfranc fracture-dislocation.

A case of a complex type of Lisfranc fracture/dislocation is presented. This variant is peculiar in that there is a diastasis between the medial and middle cuneiforms with interposed anterior tibialis tendon. This anatomic situation necessitates an open reduction and internal fixation.

Adult↗

An irreducible distal fibula dislocation while in-line skating.

We present a case report of a variation of a Bosworth fracture, which is a posterior dislocation of the proximal fragment of a distal fibula fracture. Our patient had a distal fibula dislocation without fracture. He was treated with an open reduction and internal fixation using syndesmotic screws. At his most recent follow-up, he was ambulating without pain.

Adolescent↗

Normal values of neonatal lower limbs: an evaluation of 1,000 neonates.

The purpose of this study was to establish normal values for neonatal hip range of motion, knee range of motion, tibial torsion, and foot alignment. Normal values for examination of the lower extremity in the neonate are not well-documented in the orthopaedic literature. One-thousand healthy neonates were examined by the orthopaedic residency under the supervision of an attending doctor. A total of 527 girls (53%) and 473 boys (47%) were examined. Results were compared and analyzed for mean, range, and standard deviations. There was a wide normal range for each category measured. For all categories, boys and girls had essentially the same values. There were no differences between right and left values. Normal values for these measurements have not previously been reported from such a large series.

Female↗

A retrospective study of 125 cases of slipped capital femoral epiphysis.

A series of 125 cases of slipped capital femoral epiphysis in 94 patients was followed an average of 4.7 years. Initial treatment consisted of closed reduction with internal fixation in 13 cases, cervical cuneiform osteotomy with internal fixation in nine, and in situ fixation in the remainder. The end-results were good in 82% of the cases. Of the nine failures, eight were due to avascular necrosis or chondrolysis. Closed reduction should be performed only in acute or acute-on-chronic slippings. Chronic slippings should be nailed in situ. The use of more involved procedures, such as cuneiform osteotomy, is not recommended because of the risk of avascular necrosis and because they do not allow the natural forces of remodeling to improve the deformity. Using this method, only three slippings required subsequent osteotomy.

Adolescent↗

The association of congenital spinal anomalies with imperforate anus.

Ninety-four patients with congenital imperforate anus were studied to investigate: (1) the incidence of congenital spinal anomalies; (2) the orthopedic significance of these anomalies; (3) the incidence of other musculoskeletal disorders; and (4) the incidence of anomalies in other organ systems in the anal-spine anomaly group. There was a 38% incidence of spinal anomalies in 94 patients with congenital imperforate anus. Most of these abnormalities were sacral, and there were no related or progressive spinal deformities. The incidence of other musculoskeletal anomalies was much lower than of the spine (only 9% of the total). The triad of caudal regression-imperforate anus, spinal anomalies, and genitourinary tract anomalies-was present in 19 (53%) of the 36 cases, much more than any other combination of major system abnormalities such as the VATER of VACTEL syndromes.

Abnormalities, Multiple↗

Thoracic kyphosis in cystic fibrosis.

The incidence of thoracic kyphosis in 91 older children and adolescents suffering from cystic fibrosis was 15.1%. Only 5.5% of 91 hospitalized "normal" adolescents had the deformity. Among the group of patients with cystic fibrosis we found a positive correlation between incidence of kyphosis and severe pulmonary disease. Because the kyphosis does not seem to represent a problem in itself, and owing to the various and multiple problems of these young people, braces are indicated only in exceptional cases with rapidly progressing deformity. A program of proper stretching, thoracic extension, and breathing exercises should be recommended for such patients.

Cystic Fibrosis↗

Experience with Legg-Calvé-Perthes disease (LCPD) 1968--1974 at the New York Orthopaedic Hospital.

Of 19 patients (24 hips) with LCPD treated between 1968 and 1974, 18 hips were treated by nonoperative methods (the abduction weight-bearing program as described by Petrie), and six hips were treated by Salter innominate osteotomy. Using Catterall's classification of the roentgenographic changes, 14 cases were rated good; 4 were fair and 6 were poor. The age at the time of diagnosis was the most reliable diagnostic parameter.

Casts, Surgical↗