Abstracts Posters SICOT-SOF meeting Gothenburg 2010 _2_

Poster
Topic: Sports Medicine - Knee
Abstract number: 26613
INTRA-ARTICULAR PATTERNS OF BUCKET HANDLE MENISCAL TEARS
Jung-Ro YOON 1 , Taik-Sun KIM 1 , Jai-Hyuk YANG 1 , Sung-Jong LEE 2 , Hyuk JEGAL 1
Jun-Ho LEE 1 Mi-Nyeo YOON 1
1 Seoul Veterans Hospital, Seoul (KOREA), 2 Teun Teun Orthopaedic Clinic, Incheon
(KOREA)
The purpose of this study was to assess the intra-articular patterns of rotational
deformities of BHMTs based on arthroscopic findings and emphasize the importance
of tear pattern recognition. F rom 2004 to 2009, forty-two patients with a BHMT
diagnosed by magnetic resonance imaging underwent arthroscopic surgery. By
analysing data we classified BHMTs according to the rotational directions of centrally
displaced fragments. To assess the reliabilities of the agreement in ILJ classification,
two Orthopaedic surgeons re-classfied BHMTs. 1 week after first trial. Intra- and
interobserver reliabilities were assessed using kappa statistics. Also we address
specific tear patterns; associated ACL injury, medio-lateral difference, reducibility,
chronicity, and reparability. Most of the tears were able to be categorized into 3
morphologic patterns. Of the tears, 4.8% could not be categorized. BHMTs were
classified, based on the rotational directions of centrally displaced fragments, as
follows; the upward rotation group (type 1), the downward rotation group (type 2) and
the reverse group (type 3). The most common intra-articular pattern found was type 1
(29 patients, 69%). The other patterns were; type 2 in 7 patients (16.7%), type 3 in 4
patient (9.5%).Intra-observer reliability was 0.86 in terms of kappa statistics, which
implies almost perfect agreement. Mean interobserver reliability (0.67) showed
substantial agreement. Tear type was correlated with reducibility. On the basis of
this, the surgeon can anticipate tear patterns, which may improve pattern recognition
and facilitate anatomic repair.
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