POSTER ABSTRACTS - ISAKOS

showed severe swelling without an open wound of
his left ankle, and tenderness of the distal tibia of
his left leg. He had no sensory or motor
disturbance. Plain radiographs and computerized
tomography with three-dimensional
reconstructions showed a four-part triplane
fracture of his left distal tibia. We attempted a
closed manipulative reduction but were
unsuccessful. Therefore, an arthroscopy assisted
reduction and internal fixation was performed.
[Surgical technique] Initially, we reduced the tibial
shaft fracture site manipulatively and fixed with
percutaneous canullated screw system under
fluoroscopic view. Next, we inserted an ankle
arthroscopy via an anteromedial portal, and
reduced the articular surface of the intra-articular
fracture site and fixed with percutaneous
canullated screw system under fluoroscopic view.
The patient was allowed to begin active ROM
exercise a day after surgery, and partial weightbearing
three weeks after surgery.
[Results] At two months after surgery, he was able
to walk without discomfort. At three months after
surgery, he felt no pain when running, and was
able to fully participate in athletic activities. At
one year after surgery, the midfoot had a full
range of motion, and the AOFAS score was 100
points. Radiographs showed no recurrence of
dislocation, and ankle arthroscopy showed well
healed articular surface of the tibial plafond.
[Discussion] Whipple reported the efficacy of
arthroscopy assisted internal fixation for triplane
fractures of the ankle to reduce the articular
surface. To reduce the displacement of the
articular surface is important to gain an excellent
clinical results and to avoid a following
degenerative changes.
[Conclusion] We concluded that ankle arthoscopy
should be applied in the treatment of triplane
fracture of the ankle.
E-poster #110
MRI Evaluation for Consecutive Change of the
Intensity of Anterior Talofibular Ligament
Autografts Comparison with Articular Portion
and Bone Tunnel Portion
Masatoshi Tobita, Ohda, Shimane,JAPAN,
Presenter
Kohei Naito, Ohdashi, Shimane, JAPAN
Masato Takao, Izumo, Shimane, JAPAN
Kenichi Kajitani, Matsue-shi, Shimane, JAPAN
Hidetoshi Yamaguchi, Izumo, Shimane, JAPAN
Nobuyuki Kumahashi, Izumo, Shimane, JAPAN
Nobuyuki Kumahashi, Izumo Shimane, JAPAN
Kazunori Oae Izumo Shimane, JAPAN
Toru Nagatani Izumo Shimane, JAPAN
Yuji Uchio Izumo Shimane, JAPAN
Ohda Municipal Hospital, Ohda, Shimane, JAPAN
[Purpose] We investigated the consecutive change
of the intensity of anterior talofibular ligament
(ATFL) autografts using MRI.
[Patients and methods] Nine patients with
chronic ATFL tear were performed anatomical
ATFL reconstruction with grachilis tendon. There
were 6 male and 3 female patients, with the mean
age at the time of operation being 28years (range,
16 to 49 years). Postoperatively, patients had their
ankles immobilized with a short-leg cast 4 weeks,
after which passive range-of-motion exercises of
the ankle were performed with soft ankle orthoses.
Partial weight bearing was allowed after 2 weeks
with cast immobilization, and full weight bearing
resumed after 6 weeks. Each patient underwent
MRI at postoperative 1,3,6,9 and 12 months. T2-
weighted axial images were obtained to assess the
intensity of the autografts in articular portion, and
T2-weighted oblique axial images were obtained
to assess those in bone tunnel.
[Results] In articular portion, all patients showed
high intensity at 1month postoperatively. Four
cases of 9 patients showed low intensity at 6
months postoperatively, and the intensity turned
into low until 9 months postoperatively in all
patients. In bone tunnel, all patients showed high
intensity at 1month postoperatively. However no
patient showed low intensity by the time of 9
months postoperatively. Seven cases of 9 patients
showed low intensity at 12 months
postoperatively.
[Discussion and conclusion] It is said that the
change to low intensity of autografts represents
the maturation of the graft in MRI. In this study,
ATFL autografts in articular portion maturated
earlier than those in bone tunnel.
E-poster #111
Osteochondral Lesions of the Ankle: A
Retrospective Clinical Study
Alvaro Cristian Ojeda, Concepcion, CHILE,
Presenter
Esteban Diaz, Concepcion, CHILE
Edgardo Sanzana, Concepcion, CHILE
Victor Contreras, Concepcion, CHILE
Fredy Cristian Montoya, Concepcion, CHILE
U. of Concepcion Worker´s Hospital, Concepcion,
CHILE
OBJECTIVE: