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Case Reports
. 2020 Jan 8:25:100281.
doi: 10.1016/j.tcr.2020.100281. eCollection 2020 Feb.

Osteochondral avulsion fracture of the posteromedial tibial plateau

G Caggiari  1 , E Ciurlia  1 , S Ortu  1 , R Sirianni  1 , L Bonini  1 , F Pisanu  1 , C Doria  1 , M Manca  1
Affiliations
Case Reports

Osteochondral avulsion fracture of the posteromedial tibial plateau

G Caggiari et al. Trauma Case Rep. .

Erratum in

Abstract

Posteromedial tibial plateau avulsion fracture caused by semimembranosus muscle is not easy to detect by X-ray. The literature regarding this issue is poor, also mechanism is extensively disputable. This lesion was often connected to an anterior cruciate ligament (ACL) rupture and medial meniscal horn lesion. In this work, we described a posteromedial tibial plateau avulsion fracture at the semimembranosus insertion. In particular, we referred to the surgical treatment of those transversal osteochondral fractures.

Keywords: Avulsion; Fracture; Osteochondral; Posteromedial; Semimembranosus; Tibial plateau.

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Figures

Fig. 1
Fig. 1
23 years old male patient reported a knee injury while was playing soccer. (a) Anteroposterior X-ray view showing an anterolateral depression fracture. (b) Lateral X-ray view with a posteromedial tibial plateau fracture. (c) 30° extra-rotated lateral view with a better visualization of the fragment.
Fig. 2
Fig. 2
Transverse scans of computed tomography demonstrate a fracture of the posteromedial tibial plateau.
Fig. 3
Fig. 3
CT images delineating the displaced fragment. Note that the displaced fragment has rotated 90° in the sagittal plane.
Fig. 4
Fig. 4
Fluoroscopic intraoperative lateral knee image showing reduction of posteromedial osteochondral fragment with 2 K-wires.
Fig. 5
Fig. 5
(a, b): The anteromedial depression fracture was reduced with 3 HCS screws (3 × 36 mm; 2,4 × 30 mm; 2,4 × 30 mm) inserted through the same surgical approach. Plain radiographs ((a) frontal and (b) lateral views) at 6 month follow-up showing bony union.
Fig. 6
Fig. 6
The patient recovered flexion and extension to control at 6 months.
See this image and copyright information in PMC

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