title: [Predictive criterions of unrecognized articular effraction after internal fixation of femoral neck fractures].
abstract: On the basis of a retrospective study comprising 91 cases of femoral neck fracture treated by DHS, unrecognized screw articular penetration was observed in 9 cases (9.9%). The coxa valga (Garden I) fractures are the most interested by this complication (7 cases out of 9). With a practical purpose and to avoid remarking each time complex measurements again we found that the distance "d" separating the end of the implant from subchondral bone calculated on antero posterior and lateral views and so the angle measured on the lateral view were two criteria significantly predictive of this technical error with respectively P: 0.005 and P: 0.0005. Thus during the surgical procedure taking these two measurements after the installation of the pin guide would allow attention on the risk incurred. In case of doubt, we have changed the way of this pin before resorting to drilling and tapping.
authors.affiliation: Service d'Orthopédie et de Traumatologie, Hôpital Charles Nicolle Tunis, Tunisie.
authors.forename: Maher
authors.initials: M
authors.lastname: Karray
authors.forename: Mondher
authors.initials: M
authors.lastname: Kooli
authors.forename: Khelil
authors.initials: K
authors.lastname: Ezzaouia
authors.forename: Ramzi
authors.initials: R
authors.lastname: Bouzidi
authors.forename: Mondher
authors.initials: M
authors.lastname: Mestiri
authors.forename: Mongi
authors.initials: M
authors.lastname: Zlitni
mesh_terms: D001858:Bone Nails; D001863:Bone Screws; D005265:Femoral Neck Fractures / Q000000981:diagnostic imaging / Q000601:surgery*; D005593:Fracture Fixation, Internal / Q000009:adverse effects* / Q000295:instrumentation / Q000379:methods; D006801:Humans; D019300:Medical Errors; D011237:Predictive Value of Tests; D011859:Radiography; D012189:Retrospective Studies; D012307:Risk Factors