POSTER ABSTRACTS - ISAKOS

Conclusion: Excellent functional scoring was
found in young patients with isolated meniscal
repair compared to those who had associated
other procedures and patients with articular and
ligamentous injury at the time of the procedure.
Results are also dependent on duration between
injury and surgery.
E-poster #702
Popping Sound with Radial Tears of the
Meniscus Among the Elderly Patients
Kyung Wook Nha, Koyang-Si, KOREA, Presenter
Gyu WonPark, Koyang, Kyunggi SOUTH KOREA
Byung GikKim, Koyang, Kyunggi SOUTH KOREA
Jung Ro Yoon, Seoul, KOREA
inje university, Ilsanpaik hospital, Koyang, KOREA
(INTRODUCTION) Popping sound is characterized
by a clinical sign associated freqently with ACL or
MCL injury.Popping is a sharp,explosive sound
happened in the initial attack. However its
description related with meniscal tear has been
rarely mentioned.
(MATERIALS AND METHODS) We experienced
seventeen cases of meniscal tear with audible
popping sound and evaluated them with MR
imaging and arthroscopic examination. All
patients were over middle age group (ranged from
47 to 86 years), the average age was 62.5 years,
denied having any preceding trauma and
complained of the knee pain
(RESULTS) Interestingly all seventeen cases
showed the radial tears of meniscus (sixteen cases
showed the radial tears in the root of the posterior
horn of the medial meniscus and one case
showed the radial tear in the middle portion of
lateral discoid meniscus), confirmed by
arthroscopic examination. MR imaging performed
in 16 out of 17 cases showed 43%(7/16 cases):
diagnostic accuracy in coronal MR image. In our
study, popping sound showed a higher accuracy
rate(100%) compared to MR imaging.
(DISCUSSION) Meniscal tears in elderly patients
happened commonly without trauma due
to the degenerative changes .Popping may be
transecting sound of the circumferentially
oriented
fibers of meniscus during the swing phase of
gait(forced flexion)
(CONCLUSIONS) Popping sound of the meniscus
could be recognized as making a diagnosis of
meniscal injury, especially radial tear over middle
age group
E-poster #703
Treatment of Unstable Osteochondritis
Dissecans Lesions of the Knee Using
Osteochondral Autograft Transfer
Kazutomo Miura, Pittsburgh, PA, USA, Presenter
Yasuyuki Ishibashi, Hirosaki, Aomori JAPAN
Eiichi Tsuda, Hirosaki, Aomori JAPAN
Hideki Sato, Hirosaki, JAPAN
Satoshi Toh, Hirosaki, Aomori JAPAN
Hirosaki University, Dept of Orthopaedic Surgery,
Hirosaki, Aomori, JAPAN
[Objective]
In the treatment of unstable osteochondritis
dissecans (OCD) of the knee, ideally, the fragment
should be fixed before the occurrence of
separation or formation of loose bodies. If that
cannot be done, a resurfacing procedure should
be performed. The objective of this study was to
evaluate the treatment of unstable lesions of the
knee OCD using osteochondral autograft transfer
(OAT) as a means of either biological internal
fixation or resurfacing procedure of the articular
cartilage defect.
[Methods]
From July 1997 to June 2003, 18 patients with an
average of 17.8 years (4 female and 14 male) with
knee OCD were treated by OAT procedure. Ten
patients had open physis, and 8 were skeletally
mature. Twelve lesions involved the medial
femoral condyle, and 6 involved the lateral
femoral condyle. The average follow-up was 28
months. The MRI classification as described by
Nelson was grade III in 10 patients, and Grade IV
in 8 patients. ICRS classification was Grade II in 2
patients, Grade III in 10 patients, and Grade IV in 6
patients. The mean size of the OCD lesion was
2.3cm2 (0.5cm2 - 6.0cm2). OATs were performed
in 12 patients by means of fixation of OCD
fragment (Berlet technique) and in 6 patients as a
resurfacing procedure of articular cartilage defect
(mosaicplasty). Osteochondral plugs were
harvested from the ipsilateral knee joint.
Postoperative evaluation included rating by the
International Knee Documentation Committee
(IKDC) form and T2*-weighted MRI at intervals of
three months until one year after operation.
[Results]
All patients had decreased knee symptoms after
OAT operation. According to the criteria of the
IKDC grading form, 11 were normal, 6 nearly
normal, and 1 abnormal. Significant differences
between surgical procedures and between ages
(open physis and skeletally matured) were not