You could be reading the full-text of this article now if you...

If you have access to this article through your institution,
you can view this article in

Percutaneous Epiphysiodesis Using Transphyseal Screws (PETS)

Métaizeau, Jean-Paul M.D.; Wong-Chung, John M.Ch., F.R.C.S.I.*; Bertrand, Hélène M.D.†; Pasquier, Philippe M.D.†

Journal of Pediatric Orthopaedics:
Limb-Length Discrepancy

We describe a new technique of percutaneous epiphysiodesis using transphyseal screws (PETS) and our experience with it in 32 cases of limb-length inequality and nine angular knee deformities. A subgroup of 18 patients with postfracture limb overgrowth formed a clinical model for study of the real efficacy of PETS. It proved a reliable method with few complications and many advantages such as simplicity of technique, short operating time, rapid postoperative rehabilitation, and reversibility. Bone-length inequality decreased from a preepiphysiodesis average of 2.47 cm(range, 1.5-4.6) to 0.51 cm at skeletal maturity. The tibiofemoral angle reduced from a preoperative average of 7.66° to 0.86° at maturity. The screws began to exert significant growth inhibition within 6 months of insertion, slowing down the distal femoral and upper tibial physes by 68 and 56%, respectively. They achieved maximum growth retardation over the ensuing 12 months, slowing down the distal femoral physis by 89% and the proximal tibial physis by 95%. At skeletal maturity, total femoral growth was 45% and total tibial growth was 52% that of the normal side.

Author Information

From Service d'Orthopédie Pédiatrique, Hôpital Belle-Isle, Metz, France; *Department of Orthopedic Surgery, Salmaniya Medical Center, Bahrain; and †Interne des Hôpitaux de Nancy, France.

Study conducted at Hôpital Belle-Isle, Metz, France

Address correspondence and reprint requests to Dr. J.-P. Métaizeau, Chirurgien Chef de Service, Service d'Orthopédie Pédiatrique, Hôpital Belle-Isle, 57045 Metz Cedex 1, France.

© Lippincott-Raven Publishers.