A detailed description of bilateral extensor digitorum brevis manus (EDBM) present in a female cadaver is presented. The need for clinical recognition is emphasized. Prevalence, morphological variability and theories of ontogeny are reviewed. Clinical significance and possible function are discussed. Since misdiagnosis may result from the anatomical variability and lack of clinical awareness, the need for further study is emphasized.
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References
1.
BAERJ. G.Comparative Anatomy of Vertebrates, Washington, Butterworth and Company1964, 60–61.
2.
BINNSJ. H. (1972) Two Cases of Extensor Digitorum Brevis Manus, The Hand, 4: 263–264.
3.
CAULDWELLE. W., ANSONB. J., and WRIGHTR. R. (1943-44) The Extensor Indicis Proprius Muscle — A Study of 263 Consecutive Specimens, Quarterly Bulletin of Northwestern University Medical School, 17: 267–279.
4.
CIHÁKR. (1972) Ontogenesis of the Skeleton and Intrinsic Muscles of the Human Hand and Foot, Ergebnisse der Anatomie und Entwicklungsgeschichte, 46, 1: 1–194.
5.
da GAMAC. C. (1976) Musculus Extensor Digitorum Brevis Manus, International Surgery, 61: 39–40.
6.
DE SANTOLOA., and MANSATM. (1971) Note on a Muscular Variation of the Extensors of the Hand, Bulletin of the Hospital for Joint Diseases, 32: 168–170.
7.
DUNNA. W., and EVARTSC. M. (1963) The Extensor Digitorum Brevis Manus Muscle, A Case Report Clinical Orthopaedics and Related Research, 28: 210–212.
8.
EGAWAT., and HASHIMOTOK. (1966) An Anomalous Extensor Indicis Muscle — A Case Report, The Bulletin of the Hospital for Joint Diseases, 27: 116–119.
9.
GLASGOWE. F. (1967) Bilateral Extensor Digitorum Brevis Manus, The Medical Journal of Australia, 2: 24–25.
10.
HARTJ. A. L. (1972) Extensor Digitorum Brevis Manus, The Hand, 4: 265–267.
11.
JONESB. V. (1959) An Anomalous Extensor Indicis Muscle, The Journal of Bone and Joint Surgery, 41B: 763–765.
12.
KAPLANE. B.Functional And Surgical Anatomy of the Hand, Philadelphia, J. B. Lippincott Company, (1953) p. 68.
13.
REEFT. C., and BRESTINS. G. (1975) The Extensor Digitorum Brevis Manus and Its Clinical Significance, The Journal of Bone and Joint Surgery, 57A: 704–706.
14.
RIORDAND. C., and STOKESH. M. (1973). Synovitis of the Extensors of the Fingers Associated with Extensor Digitorum Brevis Manus Muscle.A Case Report, Clinical Orthopaedics and Related Research95: 278–280.
15.
ROSSJ. A., and TROYC. A. (1969) The Clinical Significance of the Extensor Brevis Manus, The Journal of Bone and Joint Surgery, 51B: 473–478.
16.
SMITHE. B. (1897) Some Points in the Anatomy Of The Dorsum Of The Hand, With Special References To The Morphology Of The Extensor Brevis Digitorum Manus, The Journal of Anatomy and Physiology, Normal and Pathological, Human and Comparative, 31: 45–58.
17.
SOUTERW. A. (1966) The Extensor Digitorum Brevis Manus, British Journal of Surgery, 53: 821–823.
18.
STACKH. G. (1979) Personal Communication.
19.
WOODJ. (1864) On Some Varieties in Human Myology, Proceedings of the Royal Society of London, 13: 299–303.
