The authors reviewed the result of I.D.K. patients, treated by arthroscopic surgery from November, 1987 to May 1995. We analysed 410 meniscus tears according to tear type, location and combined ligament injuries.
@ES The analyzed results are summerized as follows:
@EN 1. The male to female ratio in meniscal tear incidence was 2.2:1 but the meniscal tear incidence was more frequent in female than male patients over 50 years old and age of 16 to 30 years old patient occupied about a half of meniscal tear
cases.
2. The lateral meniscal injury was more frequent than medial meniscus. In lateral meniscus, the predominant types of meniscal tear were complex an flap type tear, and the major sites of meniscal tear were mid-posterior portion and posterior horn
of
meniscus. In medial meniscus, the dominant types were also complex an flap type, and main tear sites were entire, middle portion and mid-posterior portion of meniscus.
3. Both meniscal tears were detected in 38 cases(9.3% of menical tear cases). In these cases, the predominant meniscal tear types were complex an flap tear on posterior horn of medial meniscus and on mid-portion of lateral meniscus.
4. We found 79 cases discoid meniscal tears934l.% of lateral meniscal tear cases) which all lateral discoid meniscus. The major tear types were complex an longitudinal tear, and the predominant sites of meniscal tear were entire, ant.-middle and
mid-posterior portion of lateral discoid meniscus.
5. The meniscal tear with anterior cruciate ligament injury was more frequent in chronic anterior cruciate ligament injury than acute injury. In meniscal tear combined with chronic anterior cruciate ligament injury, the main tear types were
complex an
flap type tear, and the dominant tear sites were mid-posterior and posterior horn of meniscus.
6. The meniscal tear with collateral ligament injury was found in 10 cases and 9 cases were occurred in association with acute collateral ligament injury.
7. The meniscal tear combined with anerior cruciate ligament and medial collageral ligament injury was developed in 6 cases and 5 cases was occurred acute ligament injury. And we experienced 5 cases of anterior cruciate and medial collateral
ligament
injury with no meniscal tear.
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