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Biomedical subjects

R A Meals

Publications and source records attributed to R A Meals.

At least 73 records · Page 4Linked to original sources
PubMed1984

Severe limb deficiency in Poland's syndrome.

Although Poland's syndrome is classically considered to consist of simple syndactyly, limb hypoplasia, and ipsilateral pectoral muscle agenesis, a rate group of patients with pectoral agenesis has more severe limb deficiencies. In ten of these patients and in similar patients reported in the literature, a broad range of limb deformities was observed. The authors classified the patients according to limb anomalies: type 1, five digits present even if hypoplastic; type 2, functional border digits with the absence of central digits; type 3, more severe absence deformities with no functional digits; and type 4, radial ray defects with absent thumb. The understanding that Poland's syndrome includes a spectrum of limb anomalies is important in searching for associated birth defects, in genetic counseling, and, possibly, in elucidating the pathogenesis of the syndrome.

Child↗
PubMed1984

New advances in bone research.

An edited summary of an Interdepartmental Conference arranged by the Department of Medicine, UCLA School of Medicine, Los Angeles. William M. Pardridge, MD, Associate Professor of Medicine, is Director of Conferences.

Bone Cements↗
PubMed1983

Variations in digital sensory patterns: a study of the ulnar nerve-median nerve palmar communicating branch.

Eighty percent of 50 dissected cadaver palms showed a communicating branch between the fourth and third common digital nerves (ulnar and median origins, respectively). The branch commonly crossed the palm with the superficial arterial arch and usually provided sensory fibers from a branch of the superficial ulnar nerve into the ring finger radial digital nerve. Caution should be taken during carpal tunnel release or other surgery along the axis of the fourth ray to avoid injury to this structure.

Carpal Tunnel Syndrome↗
PubMed1982

Complex dorsal dislocation of the thumb metacarpophalangeal joint.

Complex dorsal dislocation of the thumb metacarpophalangeal joint is an infrequently reported injury. Distinction from its simple counterpart is facilitated by specific physical and radiographic findings. The presence of skin dimpling without gross joint deformity represents physical evidence of a complex lesion. This diagnosis is corroborated by radiographs that reveal a dorsal dislocation associated with joint space widening and interposition of one or both sesamoids. The current treatment of choice is immediate operative reduction followed by a brief period of immobilization. Surgery may be performed through a volar, lateral, or dorsal incision. We favor the dorsal approach, in that it provides excellent exposure while reducing the risk of neurovascular injury.

Adult↗
PubMed1979

An unusual complication following surgical treatment of deQuervain's disease.

Symptoms of deQuervain's disease were relieved by incision of the first dorsal compartment sheath in a 43-year-old hospital employee. Three months after the operation she developed dysaesthesias in the distribution of the superficial radial nerve with wrist extension and thumb abduction. At reoperation the tendons of the first dorsal compartment were found to glide dorsally onto a fibrous remnant of the sheath and to elevate the overlying superficial radial nerve. Excision of the fibrous ridge resulted in relief of symptoms. The complication could have been avoided, in retrospect, by excising the sheath or by incising it at its dorsal attachment.

Adult↗
PubMed1979

Robert A. Robinson.

Explore the source record for details and available documents.

History, 20th Century↗
PubMed1979

Overgrowth of the femur following fractures in children: influence of handedness.

Handedness was a more important factor in the amount of overgrowth following fractures of the femoral shaft in children in the present study than factors previously investigated. The lower limbs were measured and handedness was recorded in 112 children who had sustained their fractures fourteen to 101 months (mean, fifty-six months) before the study was undertaken. Fifty-two of these patients also had scanograms. The average overgrowth for all injured limbs was ten millimeters. The difference in the amount of overgrowth which was observed was this: when the fracture was on the same side as the dominant hand, the limb overgrew an average of eight millimeters, compared with fourteen millimeters when the fracture was on the side opposite the patient's dominant hand. This difference for the scanogram group was statistically significant (p less than 0.05). Overgrowth was significantly inhibited by overriding of fracture fragments and was enhanced by distraction. The age of the patient and the type and location of the fracture did not significantly affect overgrowth.

Age Factors↗
PubMed1979

The laterality of fractures and dislocations with respect to handedness.

The left/right frequency of fractures and dislocations with respect to handedness was investigated in 2,716 patients with isolated fractures or dislocations of the appendicular skeleton. For both left- and right-handed patients, upper limb fractures proximal to the wrist occurred more frequently on the left: fractures distal to the wrist, however, occurred more frequently on the patient's dominant side. No lateral tendencies were observed for lower limb injuries. A combination of endogenous and exogenous forces probably account for these findings. Awareness of these tendencies may lead to improved trauma management.

Fractures, Bone↗
PubMed1978

A rubber band powered, piston-valve aspirator.

A new valved surgical aspirator is described which overcomes the shortcomings of conventional, valve-less suction devices. The valve piston which controls the flow of fluid is retained in the valve body by an ordinary rubber band. When the valve is opened by depressing the piston, the rubber band is stretched. When the piston is released, the rubber band shortens, automatically returning the valve to the closed position. Occluding the flow of air through a surgical aspirator between actual usages reduces the risk of bacterial wound contamination and reduces noise levels in the operating room. The rubber band powered, piston-valve aspirator is simple and efficient, and therefore it is suitable for hospital use.

Humans↗
PubMed1976

Paratyphoid fever: a report of 62 cases with several unusual findings and a review of the literature.

Previous descriptions of paratyphoid fever (PTF) are of limited value to the clinician who has had no experience with Salmonella enteric fevers. Sixty-two cases of PTF occurred in a healthy, homogeneous population. Findings supported by the literature included a seasonal incidence, initially seen symptoms of gastroenteritis and spiking fevers, and a high percentage of positive blood cultures. Unusual findings included the rarity of rose spots, patients with fever as their only symptom, two patients with transient papilledema, and two others with peripheral blood smears suggestive of acute leukemia. The findings of this study are compared with previous reports. Likely causes for divergent and contradictory information are inclusion of data from non-PTF states and study of populations with altered states of health.

Adolescent↗