Scientific publications

The Burch-Schneider antiprotrusio cage: medium follow-up results

Lamo-Espinosa J [SP] (1), Duart Clemente J, Díaz-Rada P, Pons-Villanueva J [SP], Valentí-Nín JR.
(1) Orthopedic Surgery and Traumatology Department, Clínica Universidad de Navarra, Av. Pio XII, 36, 31008 Pamplona, Spain 

Magazine: Musculoskeletal Surgery

Date: Apr 1, 2013

Orthopedic Surgery and Traumatology [SP]


With the development of hip prosthesis, younger patients may need more than one revision surgery, with less bone stock available in each subsequent surgery. We retrospectively reviewed the hip revision surgeries in which a Burch-Schneider device has been used.

Patients were classified according to the Paprosky score. Functional and clinical evaluation was assessed by the Merlé-Daubigné score. Radiolucencies were assessed by Gill's criteria. Sixteen patients with a mean age of 66.1 years were reviewed at a mean follow-up of 60.7 months. According to Paprosky classification, 18.7% were grade IIb, 56.3% grade IIIa and 25% grade IIIb.

The mean Merlé-Daubigné score improved from 10 to 15 points. Radiologically, 12 patients had no radiolucencies, two had grade I radiolucencies and two had grade III radiolucencies. In greater than 50% of acetabular defects, the Burch-Schneider seems to be useful providing clinical and functional improvement.

Immediately, non-progressive radiolucencies are not associated with implant loosening at the end of follow-up. The ischial flap should be inserted inside the ischial portion of the acetabulum.

CITATION  Musculoskelet Surg. 2013 Apr;97(1):31-7. doi: 10.1007/s12306-012-0233-0. Epub 2012 Dec 20.

you maybe interested


The Clínica is the greater private hospital with technological equipment of Spain, all in a single center.

Imagen de un PET, tecnología de vanguardia en la Clínica Universidad de Navarra


The professionals of the Clínica perform continuous research and training, always to the benefit of the patient.

Imagen profesionales de la Clínica Universidad de Navarra


Learn why we are different from other healthcare centers. Quality, speed, comfort and results.

Imagen del edificio de la Clínica Universidad de Navarra