Multiple osteocartilaginous exostosis. A follow-up study

Toshihumi Ozaki, A. Kawai, S. Sugihara, Y. Takei, H. Inoue

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

Deformity of the lower extremities in 26 patients with multiple cartilaginous exostosis was examined radiologically. Follow-up periods ranged between 3 and 33 years (mean 10.3 years). Twenty-four patients had deformity of the joints. A femoral neck-shaft angle (FNA) of more than 150° was noted in 14 patients (26 of 51 hip joints) at diagnosis. After approximately 10 years of age, the FNA tended to decrease. Eleven patients (22 of 52 knee joints) had genu valgum (the femorotibial angle <mean -2 SD of normal control) which was caused by valgus deformity of the distal femur in one-third of the patients and that of the proximal tibia in two-thirds. Fifteen of 21 patients (29 of 42 joints) had valgus deformity of the ankle (antero-posterior mortise angle of the ankle > 94°), and in half of them, the valgus deformity progressed with growth. Two patients (aged 10 and 11 years) underwent varus osteotomy of the tibia with partial excision of the fibula. However, their deformity relapsed. Surgical treatment for hip deformity is unnecessary during the growth stage. Progressive deformity of the knee and ankle should be detected in an early stage, and the surgical indication has to be examined.

Original languageEnglish
Pages (from-to)255-261
Number of pages7
JournalArchives of Orthopaedic and Trauma Surgery
Volume115
Issue number5
DOIs
Publication statusPublished - 1996

Fingerprint

Multiple Hereditary Exostoses
Osteochondroma
Femur Neck
Genu Valgum
Fibula
Hip Joint
Growth
Knee Joint
Osteotomy
Tibia
Ankle
Hip
Lower Extremity
Knee
Joints

ASJC Scopus subject areas

  • Surgery
  • Orthopedics and Sports Medicine

Cite this

Multiple osteocartilaginous exostosis. A follow-up study. / Ozaki, Toshihumi; Kawai, A.; Sugihara, S.; Takei, Y.; Inoue, H.

In: Archives of Orthopaedic and Trauma Surgery, Vol. 115, No. 5, 1996, p. 255-261.

Research output: Contribution to journalArticle

Ozaki, Toshihumi ; Kawai, A. ; Sugihara, S. ; Takei, Y. ; Inoue, H. / Multiple osteocartilaginous exostosis. A follow-up study. In: Archives of Orthopaedic and Trauma Surgery. 1996 ; Vol. 115, No. 5. pp. 255-261.
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