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Applied anatomic observation on the footprint of the anterior cruciate ligament |
YUAN Zhen1, WANG Wei2, HOU Ya-xin2, LIU Ang2, WU Qian2, HU Dan1 |
(1. Department of Orthopaedics, Suzhou Municipal Hospital, Suzhou Jiangsu 215001; 2. Medical College of Soochow University, Suzhou Jiangsu 215006, China) |
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Abstract Objective: To collect the antheropometric data on footprint area of the anterior cruciate ligament(ACL) among populations in South Jiangsu area, so as to provide a theoretical basis for surgical options in ACL reconstruction. Methods: Twelve corpses (a total of 24 knee joints) were selected for formalinfixed specimens. After removal of the ACL, footprint area was investigated, with anatomical landmarks identified and related data on the tibia and the femoral footprint measured using a vernier caliper. The data were recorded and photographed by a digital camera. Correlations among above data were analyzed. Results: Transverse diameter and anteroposterior diameter of the tibial plateau was (71.65±5.96)mm and (43.42±3.80)mm, respectively. Length and width of tibial insertion was (15.18±2.65)mm and (7.54±1.12)mm, respectively. Length and width of femoral insertion was (14.78±2.52)mm and (9.20±1.62)mm,respectively. The distance between the femoral insertion and the posterior wall was (2.74±0.63)mm.The incidence of lateral intercondylar ridge was 75%(18/24) and the incidence of lateral bifurcate ridge was 48%(11.5/24). Among above indicators, data of the left and right knee were showed no significant differences.Conclusion: Due to minor length and width of the foot print, singlebundle anatomical reconstruction should be recommended in the treatment of ACL injury in South Jiangsu area in China.With width unable to be accurately measured intraoperatively, the diameter of transplant should be recommended to be less than 8 mm. The occurrence of lateral intercondylar ridge is stable and could be used as a landmark of anatomical reconstruction.
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Received: 11 April 2017
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