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N S Mercer

Publications and source records attributed to N S Mercer.

24 records · Page 2Linked to original sources

Acute calcific periarthritis in a child.

We wish to present an account of a child who developed acute calcification in his thenar eminence to highlight the difficulty in differentiation between calcific periarthritis, acute infection, on clinical grounds. Calcific periarthritis is due to hydroxyapatite crystal deposits in bursae, tendons and ligaments (Bonavita 1980) with characteristic radiographic appearances of opacities of variable density and shape around joints (Hitchcock 1959). The condition was first described in the shoulder, by Duplay in 1870 (Sandstrom 1938) and this remains the most commonly affected site. The hip, elbow, wrist, knee and ankle may also be involved but involvement of the hand is uncommon. Involvement in this site was first described in 1924 by Cohen (Carroll 1955). The previously reported age span ranged from thirteen years upwards, with an average of forty-five years, both sexes being equally affected (Currey 1970, Hitchcock 1959, Bonavita 1980).

Calcinosis↗

Nasal symmetry: a 10-year comparison between the Pigott and McComb nasal correction.

The objective assessment of the symmetry of the cleft lip nose has not been properly evaluated. A simple technique using enlarged photographs and area assessment is described. Two different techniques were assessed, the Pigott "alar leapfrog" technique and the McComb alar lift technique. The children were assessed at 10 years of age. The results show no differences in the linear measurements or when the symmetry is assessed in the frontal view. In the worm's eye view, the Pigott correction was shown to produce a more asymmetric nose when compared with the McComb technique. Both corrections produce significant asymmetry when compared with a control group.

Abnormalities, Multiple↗