Module 55, Pediatric Orthopaedist Level

This patient is a 14 year and 6 month old black male with a one year history of progressively worsening left knee pain. The scanogram demonstrated a 4 cm leg length discrepancy, with the left shorter than the right.

Question 55A

Lateral epiphysiodesis of the tibia is a good treatment.

Question 55B

The leg length difference with shortness makes this an ideal place to use combined distraction lengthening and correction of deformity.

Question 55C

Islands of densely packed hypertrophied cartilage cells, not in the usual columnar organization is the typical histology.

Question 55D

Although not an inherited problem often family members also have adolescent tibia vara.

Question 55E

Blount first described tibia vara although Langenskiold has done most of the work of classification.