J Korean Orthop Assoc.  2006 Aug;41(4):730-735.

Intertrochanteric Varus Open Wedge Osteotomyin Legg-Calve-Perthes Disease Patients Older than 9 Years Old

• Ok IY
• Kim SJ
• Ahn NK

Abstract

PURPOSE: To evaluate the outcome of intertrochanteric varus open wedge osteotomy in LCP in patients over 9 years old.
MATERIALS AND METHODS
Thirty-three patients over 9 years old, who were diagnosed with LCP were treated by intertrochanteric varus open wedge osteotomies, from August 1989 to August 2002. The mean age of the patients was 10.2 years old (range, 9 to 14 years old), with a mean duration of follow-up of 7.7 years (range, 3.2 to 14.1 years). According to the Harring classification system, there were 3 group A, 21 group B, and 11 group C patients. There were thirty male and three female patient. There were 2 cases of female patients with bilateral extremity involvement of LCP. Radiographic outcome was assessed utilizing Stulberg's classification to grade residual deformities.
RESULTS
10 cases were Stulberg classes I and II (spherically congruent), 15 were classes III and IV (aspherically congruent), and 10 were class V (aspherically incongruent). Less involvement of the disease and treatment in the early stages produced better outcomes.
CONCLUSION
Intertrochanteric varus open wedge osteotomy is a reliable treatment for LCP after the age of 9 years old, if the disease is evaluated individually according to the extent and stage of its involvement.

Keyword

After the age of 9; LCP; Varus osteotomy

MeSH Terms

Child*
Classification
Congenital Abnormalities
Extremities
Female
Follow-Up Studies
Humans
Legg-Calve-Perthes Disease*
Male
Osteotomy