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Keywords:
Tissue characterisation, Athletic injuries, Computer Applications-Detection, diagnosis, MR, Musculoskeletal system, Musculoskeletal joint, Musculoskeletal bone
Authors:
R. BENCHIMOL1, B. BONNAIRE1, M. WARIN1, G. BOULU1, A. Benchimol1, D. Zeitoun1, J. I. LELLOUCHE1, M. COHEN1, H. DERAMOND2; 1Amiens/FR, 2Amiens /FR
DOI:
10.1594/ecr2014/C-2144
Results
Clinical Data
The mean age was 14,2 years for the study group (15 females and 4 males; range age : 8-20) and 15,3 years for the control group (15 females and 10 males ; range age : 10-18).
There had no significant difference for age (p=0,08) and gender (p=0,45) (Table 1).
The medial plica syndrome predominantly affected females (Sexe Ratio=3,75).
4 patients presented a bilateral plica syndrome at different times (21%),
supposing a genetic predisposition.
We found 27 medial plica among the 44 MRI reviewed,
performing a prevalence of 61%.
We approach the arthroscopic data (72%),
which is in favour of the way we considered a medial plica present during the review [6].
In the study group,
a frequent sporting activity was present in 26 % of cases (5 of 19) and a triggering trauma in 31 % (6 of 19).
Patients presented crepitus in 5% of cases (1 of 19),
instability in 11% (2 of 19),
pseudo-locking in 47% (9 of 19),
and quadriceps atrophy in 52% (10 of 19).
There had no significant differences with the control group (p>0,05).
The sensibility of a painful medial cord rolling under the skin was in 79% (15 of 19),
with a specificity of 100%.
There had not any patellar tap (Table 1).
All the patients underwent an arthroscopic resection of the plica,
with complete regression of the pain at 6 months in 74 % of cases (14 of 19 patients).
Imaging data
For all the criteria studied in MRI,
there had no significant differences between both groups (p>0,05).
Only intra articular effusion was significantly different (p=0,004) with predominance in the control group,
explained by the choice of the control group (pathology generating intra articular effusion).
The only criterion approaching 0,05 was the thickness of the plica,
with a tendency to grade 1,16 in the study group and grade 0,8 in the control group (p=0,2).
In the control group,
there was a tendency to a floating aspect for the medial plica (p=0,11),
a patellar chondromalacia (p=0,11),
and a superior length of the floating part (p=0,16).
(Table 2 and 3).