METHOD FOR RESTORING THE LESIONS IN KNEE JOINT'S MENISCI AND DEVICES FOR ITS IMPLEMENTATION Russian patent published in 2004 - IPC

FIELD: medicine, traumatology, orthopedics.

SUBSTANCE: surgical suturing needle contains a sharpened rod with a through cross-sectional eye for ligature at its working end. An eye is connected with the main longitudinal canals for ligature which are oriented towards nonworking end. Working end of a needle is designed as a deflecting slope for sliding along tissues. Between working end and through cross-sectional eye there is a longitudinal canal for ligature which is connected with an eye and has got an exit to deflecting slope longitudinal axis of which is located in the plane of longitudinal axes of ligature canals and cross-sectional eye for ligature. A guide of surgical suturing needle contains prolonged tube with a face protrusion as a wall part designed as a repositioner to correlate and maintain the parts of meniscus. Repositioner has got a support flange at its nonworking end and an adjusting thread at flange-adjacent part. The latter is not less than one third against tube's length. Arch's length of face protrusion corresponds to one fourth against the length of tube's circumference. One should introduce into a joint a working part of needle's guide with a protrusion to apply it under tibial surface of broken part of patient's meniscus. The end of tube's working end should be applied towards the edge of broken part to shift it towards paracapsular part till correlating surfaces of damage and rupture edges. One should apply needle's working part with ligature through the guide into a joint to perform a puncture in the middle of broken part of meniscus. Then needle should be directed towards the edge of femoral surface of paracapsular area so, that ligature should be in meniscus tissue only. Needle should be withdrawn through articular capsule with ligature as a loop. Skin and tissues should be dissected up to a capsule at the site of needle's puncture out. Ligature should be withdrawn out of a joint to suture fibrous capsular layer with 1 blanket stitch. With reverse movement it is necessary to return needle's working part into articular cavity. At first, one should introduce a needle into the middle of either femoral or tibial surface of broken part, then it should be directed towards tibial edge of meniscus' paracapsular part to be withdrawn via a capsule. Extracapsular loop developed should be dissected. With one blanket stitch one should suture the site of needle's puncture out to be bound with ligature's end withdrawn out of a capsule through the first puncture in. One should suture the site of needle's puncture out through a capsule with one blanket stitch. Ligature should be put into ligature canal between an eye and needle's working end which comes onto deflecting slope. Then needle should be returned into articular cavity by applying ligature and needle's rod canal coming onto deflecting slope as guiding needles. Needle with ligature should be punctured in and directed through broken, paracapsular parts of meniscus, articular capsule and edge of femoral surface of paracapsular area. Loop should be dissected. One should suture the site of needle's puncture out from the capsule with one blanket stitch. Application of sutures should be repeated till complete suturing the lesion of patient's meniscus. The group of innovations provides adaptation and maintenance of affected parts of meniscus against lesion plane and creates optimal conditions for healing.

EFFECT: higher efficiency of restoration.

3 cl, 9 dwg, 1 ex