USE OF THE PFO(®) NUT IN TREATING FRACTURES OF THE PROXIMAL THIRD OF THE HUMERUS IN PATIENTS WITH BONE FRAGILITY

Alberto Naoki Miyazaki; Marcelo Fregoneze; Pedro Doneux Santos; Luciana Andrade da Silva; Davi Calixto Pires; Jose da Mota Neto; Luis Henrique de Camargo Rossato; Sergio Luiz Checchia

doi:10.1016/S2255-4971(15)30213-5

USE OF THE PFO(®) NUT IN TREATING FRACTURES OF THE PROXIMAL THIRD OF THE HUMERUS IN PATIENTS WITH BONE FRAGILITY

Rev Bras Ortop. 2015 Nov 16;45(1):28-32. doi: 10.1016/S2255-4971(15)30213-5. eCollection 2010 Jan.

Authors

Alberto Naoki Miyazaki¹, Marcelo Fregoneze², Pedro Doneux Santos³, Luciana Andrade da Silva³, Davi Calixto Pires⁴, Jose da Mota Neto⁴, Luis Henrique de Camargo Rossato⁴, Sergio Luiz Checchia⁵

Affiliations

¹ PhD angd Assistant Professor in the Department of Orthopedics and Traumatology, School of Medical Sciences, Santa Casa de São Paulo; Head of the Shoulder and Elbow Surgery Group.
² Assistant Professor in the Department of Orthopedics and Traumatology, School of Medical Sciences, Santa Casa de São Paulo; Attending Physician in the Shoulder and Elbow Surgery Group.
³ Attending Physician in the Shoulder and Elbow Surgery Group.
⁴ Trainee Physician in the Shoulder and Elbow Surgery Group.
⁵ PhD and Adjunct Professor; Head of Clinical Medicine in the Department of Orthopedics and Traumatology, School of Medical Sciences, Santa Casa de São Paulo; Academic Consultant in the Shoulder and Elbow Surgery Group.

Abstract

Objective: To evaluate the clinical results from application of the PFO(®) bone fixation nut, which was developed for use with 4.5 mm cortical screws, and to analyze any complications or bone reactions caused by this synthesis in porotic bone.

Method: Between May 1999 and November 2007, the PFO(®) nut was used on 23 patients who underwent osteosynthesis with a PFS 80(®) plate in the proximal segment, to treat acute fractures, pseudarthrosis or defective consolidations. The average age of the patients was 69 years, and the average length of follow-up was 40 months.

Results: Only one patient did not present consolidation. The complications observed were: two cases of medial cortical fracture; one case of loosening of the nut; three cases of bone reabsorption around the PFO(®), but two of these without clinical repercussions; and one case in which the fracture failed to consolidate, with consequent loosening of the fracture.

Conclusion: The authors conclude that the use of the PFO(®) nut is a practical and effective alternative for osteosynthesis in patients with fractures of the proximal segment or sequelae from fractures of the humerus associated with bone fragility.

Keywords: Aged; Fracture fixation, internal; Fractures; Humerus; Osteoporosis.