Lower Leg Muscles Mri Morphometric Comparison In Individuals Presenting Medial Tibial Stress Syndrome
MTSS; MRI; Muscle Volume; deep posterior compartment
INTRODUCTION: Running as a hobby and component of exercise routines has become increasingly popular due to its proven positive health effects. Therefore, the number of injuries associated with this exercise method has increased. One of the most frequent injuries is medial tibial stress syndrome (MTSS). The main hypothesis of the causes for MTSS are centered in excessive muscle eccentric contraction, which could lead to periosteal traction. Considering the increased incidence of lower limb pain in these populations, our study aimed to understand the tenting effect theory on the posteromedial tibial fascia insertion through morphological leg deep posterior compartment (DPC) muscles magnetic resonance imaging (MRI) analysis and their tendons of individuals presenting MTSS. METHODS: An observational measure and blinded raters’ MRI study was conducted to determine the presence or absence of difference in the morphological aspects of the DPC muscles and tendons. An MRI descriptive muscle volume and tendons axial cross-sectional area (ACSA) measurement was conducted using PHILIPS Ingenia 3 Tesla HP (Amsterdam, NL) device. Forty individuals were separated into two groups: MTSS group and Control group. RESULTS: There was no association in gender with MTSS in our study (X2 (1) = 0.100; p = 0.752). Presence of posteromedial lower leg pain was associated with MTSS (X2 (1) = 6.465; p = 0.006). The FHL demonstrated 539.26 superior normalized volume in the MTSS group compared to Control group through the independent t-test (t (38) = 2.957; p = 0.003). CONCLUSION: The Deep compartment muscle FHL showed an increased muscle volume, which could corroborate the possible tenting effect of posteromedial tibial fascia