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PubMed1965

ACRO-OSTEOLYSIS.

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Acro-Osteolysis↗
PubMed2001

Absence of correlation between infantile hypotonia and foramen magnum size in achondroplasia.

Virtually all infants with achondroplasia exhibit variably severe hypotonia in infancy. This hypotonia contributes to delays in motor development and risks for sudden death. Some have proposed that this hypotonia is a direct result of impaired function of long tracts of the spinal cord, secondary to the intrinsic narrowing of the foramen magnum, which also is present in variable severity in all children with achondroplasia. We postulated that if foraminal constriction causes infantile hypotonia, then there should be a strongly positive correlation between foraminal size and severity of hypotonia. Therefore, clinical and computed tomographic data in 71 infants were retrospectively reviewed. We found no correlation. These results suggest that there is no direct relationship and foraminal size does not affect severity of hypotonia. Other potential explanations for this infantile hypotonia are considered.

Achondroplasia↗
PubMed1975

The language capability of Neanderthal man.

Considerable publicity has been given a recent article by Lieberman and Crelin ('71) which argues that Neanderthal man lacked the physical features necessary for speech. This present paper presents statistics on some modern men with normal speech who show physical features in common with Neanderthal man. The brain of Neanderthal man was as large as, or larger than, that of modern man. The brain reflected by endocranial cast of the La Chapelle-aux-Saints skull resembles that of modern man in an area important for speech and therapy suggests Neanderthal man had the neural development necessary for language.

Achondroplasia↗
PubMed1991

Wryneck in the ancient Hawaiians.

A unique cranial asymmetry previously noted in the skeletal remains from Mokapu, O'ahu, Hawai'i, is described. The anomaly involves an indentation of one or both of the occipital condyles and facial and vault asymmetry. This examination of the asymmetry includes a search for other reported occurrences, a detailed description, and a differential diagnosis. A multiple working hypothesis approach is employed. Comparison of the osseous material with the expected clinical pictures in craniosynostosis, Kleippel-Feil syndrome, primary basilar impression, and torticollis results in the most likely explanation of congenital torticollis. A high rate of occurrence of the anomaly (1.8%) is found in the skeletal remains from the Hawaiian Islands, but it has been documented in only two instances outside Hawai'i. A survey of patients seen at The Shriner's Hospital for Crippled Children does not reveal a high rate of occurrence of torticollis in Hawaiians relative to other ethnic groups.

Craniosynostoses↗
PubMed1985

Hypoplasia of the basi-occipital bone and persistence of the spheno-occipital synchondrosis in a patient with transitory supplementary fissure of the basi-occipital.

The author had the opportunity to observe the progressive development of a special form of basilar impression characterized by transitory supplementary fissure of the basi-occipital bone, persistence of the spheno-occipital synchondrosis and hypoplasia of the basi-occipital. He proposes to dissociate the general concept of basilar impression and to consider anatomo-clinical entities such as the example described in this paper.

Adult↗