POSTER ABSTRACTS - ISAKOS

hundred and seventy patients who received ACL
reconstruction from 1994 to 2001 were reviewed in
a retrospective manner. 72 underwent
reconstructions with BPTB autograft, and 98 were
treated with quadriceps tendon. Patients were
followed for an average 45 months (range, 25-73
months). Each group was evaluated in terms of
anterior laxity test, Lysholm score, IKDC score,
KT-2000 arthrometer and isokinetic quadriceps
strength using Cybex II dynamometer. Results : A
mean age at operation, interval between injury
and operation, and concomitant injury pattern
was not different between the two groups. The two
treatment methods produced similar outcomes in
terms of patient satisfaction, activity level, range
of motion and knee function (Lysholm score
improved from 71 to 93 in BPTB group and from
70 to 92 in quadriceps tendon group). Sixty-nine
and Ninety-three patients were found to be grade
0 or 1 in Lachman test and pivot shift,
respectively. At follow-up, no statistical difference
was found between groups in side to side
difference evaluated by KT 2000 arthrometer.
Quadriceps muscle strengths measured by Cybex
II recovered to 82 % of contralateral side at 1 year
and 89% at 2 years in quadriceps tendon group,
and 76%, 80% in BPTB group. Conclusion : ACL
reconstruction using quadriceps tendon showed
similar satisfactory results when compared with
that using BPTB. quadriceps tendon could be an
good alternative graft choice.
E-poster w/ Standard #437
Anatomical Description of the Anterior Cruciate
Ligament Attachment with Respect to the
Anteromedial and Posterolateral Bundles. Part
1: Tibial Footprint
Andrew Edwards, London, UNITED KINGDOM,
Presenter
Andrew A Amis, London, UNITED KINGDOM
Anthony MJ Bull, London, UNITED KINGDOM
Imperial College, London, UNITED KINGDOM
We present the anatomical attachments of the
anterior cruciate ligament anteromedial and
posterolateral bundles with the aim of relating the
findings to consistent bony landmarks. 55
specimens were used and the anterior cruciate
ligament attachments were measured in relation
to the various bony landmarks described. Wide
variation in measured values was found when
using the posterior tibial surface, the anterior
tibial surface and the medial tibial spine as
reference points. We found that the least variation
in measured values occurred between the overthe-back
position of the tibial plateau and the
posterior limit of the anterior cruciate ligament
footprint (distance 5.8mm, SD +/- 0.53mm, range
4.8 - 6.9 mm). The over-the-back landmark also
revealed the least variation in values with respect
to the centre of the bundles. We describe the
measured distances between the bony landmarks
and the centre of two 6mm circles place in the
posterior and medial limits of the bundles to
represent the position of the drill holes in a
double tunnel tibial technique for anterior
cruciate reconstruction. The anteroposterior depth
and the mediolateral width of the tibial plateau
did not correlate well with the measurements
taken from any of the bony landmarks with the
exception of the posterior tibial surface distance
to the posterior limit of the ACL. However this
measurement showed a larger standard deviation
and range than measurements taken from the
over-the-back position.
E-poster #438
Press Fit ACL Reconstruction: Is It Reliable? A
Prospective Randomized Study.
Mohammad Razi, Tehran, IRAN, Presenter
Aub Naderi, Tehran, Tehran IRAN
Rasoul University Hospital, Tehran, IRAN
Introduction: Sporadic reports indicate that Press
Fit fixation of the BPTB graft in the femoral tunnel
is reliable and has advantages of no need to use
any hardware for fixation and preserving of the
femoral bone stock in the case of revision, but
there is no report to document the position and
stability of the graft in the femoral tunnel. In this
prospective randomized study, by incorporating a
metal marker in the bony part of the patellar
tendon graft, we documented its position and
stability by control X- rays.
Methods: Press Fit fixation of the graft in the
femoral tunnel, was attempted in 35 males with
the average age of 25 years, a metal marker was
inserted in the bony part of the patellar tendon
graft, Press Fitted in the femoral tunnel and its
stability was tested by 200N traction in almost
knee extension. In seven cases stability was not
enough to withstand, therefore fixation was
completed by interference screws. Also 3 patients
lost from final evaluation. So 25 cases were
followed for the average of 41 months (24 to 66
mos). Patients were evaluated by serial X- rays,
Functional tests, KT - 1000 arthrometer, Lysholm
score, Tegner activity level, and IKDC.