POSTER ABSTRACTS - ISAKOS

Results: in control X- rays there was no
displacement of the metal marker in relation to
Blumensaat's line and average position of the
graft was at 76% of the anteroposterior lengths of
the Blumensaat's line. Average Lysholm score was
93 and in 60% of patients Tegner activity level was
in group seven. In IKDC evaluation 84% of patients
were in group A and B and no one in group D.
Conclusion: Press Fit ACL reconstruction is a
reality and by incorporating a metal marker in the
graft to facilitate control X-rays and intra
operative testing of the graft by 200N traction we
documented that graft would not be displaced
and early aggressive rehabilitation is safe like
other standard techniques.
E-poster #439
A New Objective Description of the Femoral
Tunnel Placement as a CLOCK Following
Anterior Cruciate Ligament Reconstruction
Takeshi Muneta, Bunkyo-ku, Tokyo JAPAN
Kazuyoshi Yagishita, Bunkyo-ku, 113-8519 JAPAN
Ichiro Sekiya, Bunkyo-ku, Tokyo JAPAN
Kenichi Shinomiya, Bunkyo-ku, Tokyo JAPAN
Junya Yamazaki, JAPAN, Presenter
Tokyo Medical and Dental Universuty, Bunkyo-ku,
Tokyo, JAPAN
INTRODUCTION
Though all surgeons who perform anterior
cruciate ligament (ACL) reconstruction know that
the placements of the femoral and tibial tunnels
are the important factor for achievement of ACL
reconstructions, the clock description of the
femoral tunnel placement in the coronal plane
had not been well defined in the past literature. In
this study, we proposed a new objective
description of the femoral tunnel placement in
knees with ACL reconstruction.
MATERIALS AND METHODS
54 knees in 54 patients who underwent primary
ACL reconstructions(2 root 2 bundles) from 1995
to 2002 in Tokyo Medical and Dental University
Hospital were included in this study. The subjects
included 28 males and 26 females, and the
average age of the patients were 25.8 years. From
the Rosenberg view, the clock description of the
femoral tunnel placement was defined. The clock
was drawn to be placed between the top of the
notch and line, which connected the distal edge of
the medial and lateral femoral condyles. The tibial
tunnel angle was measured as the angle, which
the tibial tunnel formed with the medial joint line
from the anteroposterior radiograph at standing
position. All the knees were assumed as a left
knee.
RESULTS AND DISCUSSION
The femoral tunnel placements as a clock were
resulted in 0 hour and 37±14 minutes in the AM
bundle and 1 hour and 35±19 minutes in the PL
bundle on average. The tibial tunnel angles were
78.9±5.4 degrees in the AM bundle, and 62.9±7.6
degrees in the PL bundle on average. From the
time-dependent reproducibility assessment in
this study, we concluded these radiographic
assessments were reproducible and reliable.
CONCLUSION
We proposed a new objective description of the
femoral tunnel placement as a clock in knees with
ACL reconstruction using the Rosenberg view.
E-poster #440
Deteriorated Proprioception in the Patients
with the Anterior Cruciate Ligament Deficiency
Affects Performance
Hiroshi Higuchi, Maebashi-shi, Gunma-ken
JAPAN, Presenter
Masayoshi Katayama, Maebashi, Gunma JAPAN
Atsushi Kobayashi, Maebashi-shi, Gunma-ken
JAPAN
Masanori Terauchi, Gunma-Ken, JAPAN
Kenji Shirakura, Maebashi-shi, Gunma-ken JAPAN
Kenji Takagishi, Maebashi, Gunma, JAPAN
Gunma University Graduate School of Medicine,
Maebashi, Gunma, JAPAN
Purpose: It has been unclear how deteriorated
proprioception in ACL-deficient knees affects the
patient’s sports performance. Aim of this study
was to investigate the characteristics of
proprioception in the patients with ACL-deficient
knee, and also to determine whether the
correlation between the proprioceptive function
and the performance.
Materials and Methods: This prospective and
randomized study was composed of 32 patients
(14 male, 18 female; average age, 25.6 years) with
unilateral isolated ACL-deficient knee. According
to Skinner’s method, the position sense of the
knee was applied as proprioceptive examination.
The functional ability test with visual control
consists of two tests: the one-leg hop (OLH) and
one-leg vertical jump (OLV). An average value of
the five trials of both proprioceptive and
functional ability test was used for the statistical
analysis.
Results: The mean inaccuracy (degree) of the joint
position sense was 3.8±1.8 in the healthy side and