POSTER ABSTRACTS - ISAKOS

cartilaginous tissue and no bony defects. Tissue
biopsy demonstrated excellent trabecular bone
and hyaline-like cartilage regeneration. When last
seen in January 2004, he was very satisfied with
the results, especially because had returned to his
previous work.
In conclusion, we clearly demonstrated successful
bone and cartilage regeneration with cultured
MSC and IP-CHA hybrid material. The fact that we
could regenerate new bone and cartilage in a onestage
operation without sacrificing autologous
bone or other tissues is clinically important. This
cultured MSC and IP-CHA hybrid material
transplantation technique represents a novel
treatment for patients with severe osteochondral
defect of the joint.
E-poster #726
Anomalous Insertion of the Medial Meniscus
into the Intercondylar Notch of the Femur
Kyoung Dae Min, Wonmin-Ku, Bucheon, KOREA,
Presenter
Byung-Ill Lee, Seoul, KOREA
Soonchunhyang University Bucheon Hospital,
Bucheon, KOREA
Abstract: We present the prevalance and
accompanied pathologies of anomalous insertion
of the anterior horn of the medial meniscus into
the intercondylar notch of the femur in KOREAn
patients with characteristic arthroscopic and
magnetic resonance image(MRI) findings. In 957
consecutive knee arthroscopies from March 2001
through December 2003, we found 13 (11 patients)
anomalous medial meniscus insertions into the
intercondylar notch of the femur (1.4%). There
were all male patients in the series. In 2 patients,
the anomaly was bilateral. Tears of the posterior
horn of the medial meniscus were in 9 knees,
lateral meniscal cyst in one and discoid meniscal
tears were in 2 knees. Complete septa of
infrapatellar plica was accompanied in 9 knees.
The anomalous band was excised in all knees.
Before arthroscopy, the diagnosis of the anomaly
was made in 11 knees through the characteristic
MRI findings; hyperintensity band seperates the
anterior cruciate ligament and the anomalous
portion of the medial meniscus. This anomaly can
be detected before arthroscopic invasion by the
awareness of this characteristic MRI findings.
Key Words: Meniscus - Anomalous insertion -
Magnetic resonance Imaging
E-poster #727
Sinovial Cyst Formation after Arthroscopic
Medial Meniscus Repair with Outside-in Suture
Technique. Report of Four Cases.
Raul Torres, Madrid, SPAIN, Presenter
Manuel Leyes, Madrid, SPAIN
Santiago Arauz, Madrid, SPAIN
Clinica Cemtro, Madrid, SPAIN
INTRODUCTION:
Meniscal repair is a viable alternative to
resection in many clinical situations. Repair
techniques traditionally have utilized a variety of
suture methods, including inside-out, outside-in
and all inside techniques This report describes a
problem arising after arthroscopic medial
meniscal refixation using permanent sutures with
the outside-in technique.
MATERIAL AND METHODS:
Between January 2000 and December 2001 we
performed 42 medial meniscus repairs. In 20 of
them we used the outside-in technique. 8 patients
had an isolated longitudinal tear on the posterior
horn of the medial meniscus and 12 patients had
unstable bucket-handle tears of the medial
meniscus with an associated ACL injury. 2-0 or 0
prolene stiches were passed with a spinal needle,
through the injured area and the synovium, and
the knots were tied outside the capsule. The
minimum follow-up was 12 months.
RESULTS
Overall 3 of 42 meniscal repairs failed and
eventually required partial meniscectomy.
Between 3 and 6 months after surgery four
patients developed a painful bultoma on the
medial side of the knee. Initially it was thought to
be a foreign body granuloma due to the
permanent suture. Removal of the lump proved it
to be a cyst with snovial fluid adjacent to the
suture knot. Two of the cysts were aspirated but
they recurred and the four cysts eventually
required removal. In two patients an arthroscopy
was performed which showed complete healing of
the meniscal tear. Six months after cyst removal
all the patients were free of symptoms
CONCLUSION
The overall results with use of the outside-in
technique are comparable with those reported
with other methods. However, the use of
nonresorbable sutures may be associated with the
development of a painful synovial cyst.