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Biomedical subjects

N Gould

Publications and source records attributed to N Gould.

18 recordsLinked to original sources

Left ventricular free wall rupture following acute myocardial infarction and cardiac amyloid.

A 74-year-old man died of left ventricular free wall rupture 6 days following an acute inferoposterior wall myocardial infarction. His hospital course was complicated by pump failure which proved resistant to inotropic support, diuresis, and percutaneous transluminal coronary angioplasty. At necropsy, extensive amyloid deposition was noted. This case constitutes an unusual clinical setting for myocardial rupture because of the severity of systolic left ventricular dysfunction as well as cardiac amyloidosis.

Aged

Foot growth in children age one to five years.

As part of the protocol on the Development of the Child's Arch, foot growth studies were monitored prospectively in 107 children from 1 year of age till 5 years of age. Under 15 months of age, growth necessitated a 1/2 size footwear change in less than 2 months; from 15 months to 2 years of age, 1/2 size increase occurred every 2 to 3 months; from 2 to 3 years of age, 1/2 size change every 3 to 4 months; and from 3 to 5 years of age, 1/2 size change every 4 months. Although foot growth in boys and girls is parallel, boys' feet tend to average one size longer and one size wider. Width growth remained proportional to length growth throughout the study.

Age Factors

Development of the child's arch.

The purposes of the project were to monitor the development of the lower extremities and the longitudinal arch of the foot and to determine whether or not arch support footwear (three types) affected development of a neutral arch in toddlers 11 to 14 months of age until age 5 years. A total of 125 beginner walkers were recruited through the pediatrics department during a period of 1 1/2 years and divided by lot into four different footwear groups (one nonarch supportive). The group was studied for 4 years by physical examinations, x-ray films, and pedotopography (a Moire fringe technique of photography). At initial examination all of the apparently normal toddlers had pes planus by all clinical, roentgenographic, and photographic measurements. There were no cavus feet at that time or at 5 years of age. Arches developed regardless of the footwear worn but development was faster during the first 2 years (until age 3 years) with arch support footwear. The rapidity of arch development until 5 years of age continued in those children who wore longitudinal arch cookies. Ossification of the sustentaculum tali begins at approximately 5 years of age but is not complete for at least another 1 to 2 years. Hyperpronation was present in 77.9% and genu valgum in 92.3% of the 5-year-old children. These conditions are apparently the norm at this age in both boys and girls.

Child, Preschool

Cockup deformity of the great toe hallux extensus.

Cockup of the great toe is characterized by persistent extension of the first metatarsophalangeal joint; the interphalangeal joint also may be involved. The syndrome has many causes, all easily diagnosed. Surgery is indicated in nearly every instance and will produce a corrected or improved result. The type of surgery--whether reefing, lengthening, or transposition of tendons, implant arthroplasty, or arthrodesis--is tailored to the underlying cause.

Arthrodesis

Post-fracture, late debridement resection arthroplasty of the ankle.

Seven patients (three male and four female), aged 10 to 45 years (average, 36 years), who suffered fractures at the ankle (three right and four left) from 6 months to 20 years ago (average, 7.6 years), underwent late debridement resection arthroplasty. Follow-up ranged from 3.5 to 7 years (average, 5 years). Six patients improved in range of motion, endurance, and freedom from pain and swelling and were able to engage thereafter in increased activities, including sports. The oldest female (aged 45), because of continual pain 15 months later, had an ankle arthrodesis. No "normal" ankles resulted, but final rating determinations based on range of motion, endurance, swelling, pain, and subjective analyses were: excellent (1), good (3), fair (2), poor (1) (arthrodesis patient). Results of the 5-year follow-ups suggest that this type of surgery in selected cases is a feasible, at least interim, alternative to more radical total ankle arthroplasty or ankle arthrodesis.

Adult

Shoes versus sneakers in toddler ambulation.

The purpose of this study was to determine the relative values and differences between shoes and sneakers for young children just learning to walk. In phase 1 of the study, 79 toddlers (47 females and 32 males), ranging in age from 11 months to 3 years, were carefully measured for footwear. Only 15 toddlers (19%) could be properly fitted in the medium-width sneakers that are currently available on the market. The majority of the measured toddlers required widths greater than D, and to accommodate these wider feet, it was necessary to fit them with longer sneakers than they actually needed otherwise, thus making ambulation a bit more difficult and clumsy. In phase 2, eight toddlers, randomly selected except for sex (four male and four female), ranging in age from 11 to 16 months who had been ambulating 2 weeks to 5 months, were tagged with an identifying letter and videotaped in four walking situations: sneakers on tile, shoes on tile, sneakers on rugging, and shoes on rugging. Four hours of video taping was edited down to one-half hour. Twenty-three observers (orthopaedic surgeons, pediatricians, and shoe fitters) carefully reviewed the tape on multiple occasions and came to the following conclusions: better fit, stance, gait, cadence, and stability were noted with shoes in all the toddlers and in all situations. Falls were three times more frequent in sneakers as compared to shoes on tile surfaces and five times more frequent on rugging. It was concluded that the slight economic advantage of sneakers over shoes was not that great to warrant jeopardizing the capabilities of the toddler in the earliest stages of ambulation.

Child, Preschool

Epidemiological survey of foot problems in the continental United States: 1978-1979.

Questionnaire cards were sent to 45,000 family shoe store customers; 15,000 cards were completed and returned, thereby permitting a broad statistical base in respect to the incidence and types of foot problems encountered in the United States. The incidence of corns, calluses, warts, ingrown toenails, bunions, hallux rigidus, hammer toes, cavus, and pes planus were correlated with age, sex, race, and demographic background, along with the incidence of surgery, conservative treatment, or no treatment. The extrapolated data indicated that 40% of the population have foot problems, of which 12% had surgery and 7% have been untreated.

Adolescent

A proper chair.

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Aged

Osteochondritis dissecans of the talus (transchondral fractures of the talus): review of the literature and new surgical approach for medial dome lesions.

A retrospective study of 22 ankles in 22 patients with osteochondral talar dome lesions between 1975 and 1983 has indicated that surgical treatment yields superior results to conservative therapy. Thirteen male and 9 female patients, ages 9 to 72 years, average age 28 years, showed 10 medical lesions (Berndt and Harty classification (stage I (one); stage II/III (nine)) and 12 lateral lesions (stage II/III (5), stage IV (7)). Examination follow-up on 19 patients (86%) has averaged 24 months. The initial diagnosis seen retrospectively on x-rays was missed 43% of the time by emergency room physicians. A history of trauma was verified in 100% of the lateral lesions and 80% of the medial talar dome lesions. Of the 22 ankles, 14 lesions were isolated injuries, while 8 had concomitant fractures, lateral ligament, or peroneal tendon damage. Surgical treatment consisted of removal of the osteochondral fragment, curettage, and drilling of its bed. Two distinct surgical approaches were utilized. Lateral dome lesions were approached through the standard anterolateral incision, while medial dome lesions were approached through the anterior tibial tendon sheath with grooving of the anteromedial distal tibia articular surface. The medial approach allowed the somewhat posteriorly placed medial lesions to be reached, negating the need for a medial malleolar osteotomy and postoperative immobilization. On follow-up, no untoward ankle arthrosis was noted as a result of the grooving of the anteromedial distal tibia. Nineteen of the 22 patients had surgical therapy with 79% excellent or good, 21% fair, and no poor results. Five of the eight patients who elected prolonged conservative therapy finally had surgery. Of the three remaining patients conservatively treated, there were two fair results and one poor result.

Adolescent

Public prejudice.

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Community Mental Health Services