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Fig. 6 | BMC Musculoskeletal Disorders

Fig. 6

From: Reverse wedge effect following intramedullary nailing of a basicervical trochanteric fracture variant combined with a mechanically compromised greater trochanter

Fig. 6

a and b Preoperative 3D image demonstrating a subtype 4-fragmentary GL pertrochanteric fracture with mild varus deformity. c and d The wide arrow indicates the impact between the reamer and the superolateral cortex of the cephalocervical fragment. The resultant basicervical gap is designated by a narrow arrow. e When the risk of reverse wedge effect was high, a 3.5-mm Kirschner wire (K-wire) was inserted to secure the reduction. f Occasionally, a single K-wire was not strong enough, and a bone hook was inserted to prevent inferior opening at the fracture line

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