case_images: PMC11697844_01
case_images: a merchant view, 30 degree flexion. b merchant view, 45 degree flexion. c merchant view, 90 degree flexion
case_images: 12891_2024_8250_Fig1_HTML.jpg
case_images: PMC11697844_01_12891_2024_8250_Fig1_HTML.jpg
case_images: Fig1
case_images: Additionally, the degree of patellar lateralization became more pronounced as the flexion angle increased (Fig. 1).
case_images: Absence of malrotation of femoral and tibial components through preoperative computed tomography
case_images: 12891_2024_8250_Fig2_HTML.jpg
case_images: PMC11697844_01_12891_2024_8250_Fig2_HTML.jpg
case_images: Fig2
case_images: The degree of internal rotation of femoral component was less than 6 degree (Fig. 2).
case_images: Damaged medial structure was identified
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case_images: PMC11697844_01_12891_2024_8250_Fig3_HTML.jpg
case_images: Fig3
case_images: Ruptured medial structure, adjacent to the mid-third of the patella, was identified (Fig. 3).
case_images: A two parallel tunnels were created in the middle third and the proximal third of the patella using a 4.5 mm drill bit. B The femoral attachment (P point) was located 1 mm anterior to the posterior femoral cortex tangent (Line A), 2.5 mm distal to the perpendicular line from the superior border of the femoral condyle (Line B), and directly proximal to a perpendicular line extending from the superior posterior edge of the Blumensaat line (Line C)
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case_images: PMC11697844_01_12891_2024_8250_Fig4_HTML.jpg
case_images: Fig4
case_images: The drilling was performed perpendicular to the patellar surface and parallel to the joint line to ensure precise placement, allowing for looping of the patella while avoiding the patellar prosthesis.(Fig. 4A). The femoral attachment was located at Schottle point, 1 mm anterior to the posterior femoral cortex tangent, 2.5 mm distal to the superior femoral condyle, and proximal to the posterior Blumensaat line (Fig. 4B).
case_images: Patella was looped with the graft from the medial side through the two parallel tunnels
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case_images: PMC11697844_01_12891_2024_8250_Fig5_HTML.jpg
case_images: Fig5
case_images: The patella was looped with the graft from the medial side through the two parallel tunnels (Fig. 5).
case_images: Through-tunnel LARS medial patellofemoral ligament reconstruction is performed by passing the ends of the ligament through the femoral tunnel and fixing them with a screw while the knee is in 30 degrees of flexion
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case_images: PMC11697844_01_12891_2024_8250_Fig6_HTML.jpg
case_images: Fig6
case_images: France) at the lateral side of tunnel when keeping the knee in 30 degrees flexion (Fig. 6). Finally the ruptured medial retinaculum was repaired with Ethibond suture (Fig. 7).
case_images: Ethibond suture for repairing ruptured retinaculum
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case_images: PMC11697844_01_12891_2024_8250_Fig7_HTML.jpg
case_images: Fig7
case_images: France) at the lateral side of tunnel when keeping the knee in 30 degrees flexion (Fig. 6). Finally the ruptured medial retinaculum was repaired with Ethibond suture (Fig. 7).