case_images: PMC10903575_01
case_images: A circular-shaped wound just above the patella, caused by a direct blow from the door knob.
case_images: cureus-0016-00000053236-i01.jpg
case_images: PMC10903575_01_cureus-0016-00000053236-i01.jpg
case_images: FIG1
case_images: The patient exhibited a circular-shaped wound just above and laterally to the patella (Figure 1).
case_images: The bone fragment is barely visible inside the door knob itself.
case_images: cureus-0016-00000053236-i02.jpg
case_images: PMC10903575_01_cureus-0016-00000053236-i02.jpg
case_images: FIG2
case_images: Her mother brought with her an arrow-shaped fragment of bone collected from the door knob itself (Figure 2).
case_images: The arrow-shaped bone fragment from the patient's left knee, approximately 2 cm in length.
case_images: cureus-0016-00000053236-i03.jpg
case_images: PMC10903575_01_cureus-0016-00000053236-i03.jpg
case_images: FIG3
case_images: The X-rays were inconclusive, without a clear sign of an intra-articular lesion from the lateral femoral condyle.. (a) Anteroposterior X-ray of the patient's affected knee shows the lateral femoral condyle appearing normal.. (b) Lateral X-ray of the patient's injured knee reveals no evidence of bone fragments.
case_images: cureus-0016-00000053236-i04.jpg
case_images: PMC10903575_01_cureus-0016-00000053236-i04.jpg
case_images: FIG4
case_images: CT scan of the patient's left knee.. The intra-articular lesion is visible on the lateral femoral condyle: (a) axial view; (b) coronal view; and (c) sagittal view.. CT, computed tomography
case_images: cureus-0016-00000053236-i05.jpg
case_images: PMC10903575_01_cureus-0016-00000053236-i05.jpg
case_images: FIG5
case_images: The CT scan revealed a lesion in the lateral femoral condyle just below the physis (Figure 5).
case_images: Operative view from the intra-articular missing fragment of the knee joint.
case_images: cureus-0016-00000053236-i06.jpg
case_images: PMC10903575_01_cureus-0016-00000053236-i06.jpg
case_images: FIG6
case_images: The patient regained her normal range of motion and functionality over the course of six weeks.. (a) The patient's affected limb in full extension; (b) full flexion of the operated knee without discomfort.
case_images: cureus-0016-00000053236-i07.jpg
case_images: PMC10903575_01_cureus-0016-00000053236-i07.jpg
case_images: FIG7
case_images: Over the course of six weeks of rehabilitation, she regained her normal ROM and functionality in the affected limb (Figure 7).