PMC3362875_01
(a) Anteroposterior and (b) lateral views of the patient's knee depicting an intra-articular fracture fragment.
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Subsequent plain radiographs revealed an intra-articular avulsion fracture (Figure 1), as well as fracture of the distal fibular diaphysis.
Intraoperative arthroscopic images depicting (a) an empty lateral wall of the intercondylar notch resulting from an osteochondral avulsion fracture of the femoral end of the ACL and (b) an arthroscopic hook reducing the fragment (outlined by black dots) to its normal position.
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A femoral end osteo-chondral avulsion fracture of the ACL was revealed (Figure 2).
CT scan depicting (a) sagittal and (b) axial views of the patients knee depicting the avulsed osteochondral fragment.
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ACL, rather occurring from the less common femoral origin. A CT scan was subsequently obtained (Figure 3), and the literature was scrutinised to aid preoperative planning of definitive fixation.
Schematic diagram depicting the method of repair.
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The sutures were then tied to one another over a bone bridge thereby reducing the avulsed fragment back into its normal anatomical position (Figure 4).
(a) Anteroposterior and (b) lateral views of the patients knee at three-month follow up.
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Radiographs performed nine weeks following definitive fixation showed union of his fracture (Figure 5).