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Figure 13.7(e) Average ages of eruption of secondary teeth, males and females. From Lowrey (1986), by permission.

Chapter 13 Use of Radiographs for Measurement Pattern Profile of the Hand

Analysis of the pattern of hand bone lengths is a very useful technique for recognizing specific bone dysplasias, syndromes, and familial patterns that affect bone growth. By measuring the length of the 19 tubular bones of the hand from a standardized X-ray of the hand (Fig. 13.8a, b) one can construct a profile of the lengths of each bone in each digit (D1-D5). The lengths are then standardized by age. The measurement for each digit is then plotted by its deviation from normal for age (Fig. 13.8c-h) giving a profile of the hand.

The normal individual has a flat line with no deviations (Fig. 13.8d), but most syndromes have characteristic patterns. This method is a useful way to characterize and quantify dysmorphology of the hand in specific conditions. For specific examples, references at the end of this chapter should be consulted.

Figure 13.8(a,b) Measuring finger bones. From Poznanski and Gartman (1983), by permission.

Figure 13.8(a,b) Measuring finger bones. From Poznanski and Gartman (1983), by permission.

Pregnancy And Childbirth

Pregnancy And Childbirth

If Pregnancy Is Something That Frightens You, It's Time To Convert Your Fear Into Joy. Ready To Give Birth To A Child? Is The New Status Hitting Your State Of Mind? Are You Still Scared To Undergo All The Pain That Your Best Friend Underwent Just A Few Days Back? Not Convinced With The Answers Given By The Experts?

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