Keywords:
Performed at one institution, Observational, Retrospective, Athletic injuries, Comparative studies, MR, Musculoskeletal joint, Extremities, Musculoskeletal
Authors:
W. C. W. Tsui, K. K. Cheng; Hong Kong/HK
DOI:
10.26044/ecr2020/C-08610
Results
A total of 27 cases of complete ACL tears were included into the study after fulfilling inclusion and exclusion criteria. Mean age of patients was 34 years (range 15 to 79). No statistically significant difference in age was noted between the positive and negative wavy patellar tendon groups (p=0.354).
Table 1: Demographic data of the groups: positive and negative for wavy patellar tendon sign.
The majority of ACL ruptures involved male patients (23:4, M:F). However, it was noted that the positive wavy patellar tendon group was predominantly female (67%). A possible explanation for this observation can be due to greater ligamentous laxity in women compared to men.
Of the included cases, 6 patients were positive for the wavy patellar tendon sign (22.2%). The amount of anterior tibial translation for the positive and negative wavy patellar tendon groups showed mean and standard deviation of 10.33 +/- 1.75mm and 4.19 +/- 2.99, respectively. Statistical significance was shown between the two groups (p<0.001), with the positive wavy patellar tendon group associated with increased anterior tibial translation compared to the negative patellar tendon group.
Table 2: Analysis of anterior tibial translation between the positive vs negative wavy patellar tendon sign groups.