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| The most important thing in this
operation is to transplant substitution every time
in near anatomical position of ACL. For transplanting,
surgeon drills both tibia and femur to make bone
tunnels and substitution is placed in these tunnels.
The anatomical shape of ACL is three-dimensional,
so it is impossible to produce an ideal bone tunnel
by single drilling. (Fig.11,Fig.12)
My procedure begins with making a bone tunnel with
a thin drill of the diameter of 5 millimeters (Fig.13),
then I use a 1 millimeter larger drill while changing
a guide pin direction three-dimensionally as need.
By repeating, I can produce an ideal bone tunnels
every time. (Fig.14,Fig.15,Fig.16,Fig.17) Tibia
tunnel is spindle-shaped in side view. The orifice
of joint space is oval and very close to the shape
of anatomical insertion. ( place where ligament
comes with a bone) （Fig.18） |
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