1. This adjunct is simple and inexpensive.
2. It constantly maintains the desired lengthening.
3. It saves the patient or the hospital the cost of four to six weeks of hospitalization.
4. It enables the patient to walk with, or without, crutches much sooner, for he cannot walk with the Abbott apparatus in place.
5. An active Orthopaedic Department needs fewer Abbott apparatus to take care of a definite number of cases in a given period of time as extra pins are all that are necessary.