| 摘要 |
The invention relates to a system for percutaneously obtaining a bone-tendon-bone graft having suitable characteristics, which was developed for use in orthopaedic knee surgery and which involves a cutaneous incision of less than 4cm without damaging the peritendon on the patellar tendon or the infrapatellar nerve (Fig. 10 and 11). The inventive system is totally different from existing systems and can be used to achieve the desired objectives in a precise, reproducible manner regardless of the patient's size, complexion, sex or age. For said purpose, the invention comprises the interaction of the various different parts forming the system, of which the most original and fundamental include the bone-tendon-bone incision and protection guide (Fig. 10, 11, no. 1) which protects the patellar peritendon and the infrapatellar nerve at all times and which can be used to maintain the correct incision direction. The interaction of the guide with a proximal holding clip (Fig. 10, 11, no. 2) ensures that the guide remains positioned against the patella and the patellar tendon and centred on the middle third of the patella, said holding arrangement being assisted distally by a distal fixing screw (Fig. 1, no. 3) in the central third of the anterior tibial tuberosity. According to the invention, proximal bone-tendon-bone graft traction and tension means (Fig. 11, no. 5) are used to prevent the graft from impeding the incision of the patellar tendon and of the distal bone end in the tibia.
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