title: Mismatch between PFNa and medullary canal causing difficulty in nailing of the pertrochanteric fractures.
abstract: The proximal femoral nail (PFN) and the proximal femoral nail anti-rotation (PFNA) have been successfully used in the management of osteoporotic pertrochanteric fractures. Although many studies have described the geometrical mismatch between the antecurvation of the femur and the contemporary intramedullay nails, technical difficulties related to the mismatch between the femoral bowing and the PFN/PFNA at the time of nailing have rarely been discussed in the literature. We have experienced a technical difficulty related to the mismatch between the medullary canal and the PFN/PFNA. We describe the complications related with the mismatch and the technical pitfalls and some technical tips to avoid this problem are also described.
authors.affiliation: Department of Orthopaedic Surgery, Korea University School of Medicine, Guro Hospital, 80 Guro 2-dong, Guro-gu, Seoul 152-703, South Korea.
authors.forename: Jin Ho
authors.initials: JH
authors.lastname: Hwang
authors.forename: Jong Keon
authors.initials: JK
authors.lastname: Oh
authors.forename: Sang Hwan
authors.initials: SH
authors.lastname: Han
authors.forename: Won Yong
authors.initials: WY
authors.lastname: Shon
authors.forename: Chang Wug
authors.initials: CW
authors.lastname: Oh
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D001858:Bone Nails / Q000009:adverse effects*; D004867:Equipment Design; D004869:Equipment Safety; D005260:Female; D005500:Follow-Up Studies; D005594:Fracture Fixation, Intramedullary / Q000009:adverse effects / Q000295:instrumentation*; D017102:Fracture Healing / Q000502:physiology; D006620:Hip Fractures / Q000000981:diagnostic imaging / Q000601:surgery*; D006801:Humans; D010024:Osteoporosis / Q000150:complications; D011183:Postoperative Complications / Q000209:etiology* / Q000503:physiopathology; D018570:Risk Assessment; D012494:Sampling Studies; D014057:Tomography, X-Ray Computed