In 1957, Green summarised experience of 475 operations to correct discrepancy in the length of the lower extremities by inhibition of growth; of these, 383 were by epiphysiodesis and 92 by stapling. The majority were observed for many years until growth was completed. The timing of arrest was based on the classic prediction charts previously published by the two authors in 1947. Epiphysiodesis and stapling were both shown to be effective procedures for correcting limb-length discrepancy providing they were used correctly. Complications were discussed but generally these were minor. The merits and disadvantages of the two procedures were debated in detail.