Stumbled across this while doing a literature search on safety footwear:
Wolff KS, Prusa AM, Wibmer A, Rankl P, Firbas W, Teufelsbauer H. Effect of Body Armor on Simulated Landmine Blasts to Cadaveric Legs.
Journal of Trauma. 2005 Jul;59(1):202-208.
BACKGROUND:: Antipersonnel landmine protective footwear relies on blast deflection or on exaggerated standoff between the foot and the explosive. Neither design has been tested for clinical effectiveness. METHODS:: 4 cadaveric lower extremities - 3 fitted with a Koflach(R) boot incorporating TABRE(R) (Technology for Attenuating Blast Related Energy) were subjected to controlled blast with charges of up to 100 g trinitrotoluene (TNT). The blasts were recorded by a digital recording system. All legs were X-rayed and underwent computed tomography scanning before and after testing. RESULTS:: TABRE-protected limbs directly subjected to the blast hyperextended at the knee during firing. Injuries showed a pattern of open tibial fractures (Gustilo grade I, II), of multiple calcaneal (Sanders Type III, IV), and fibular fractures and of the tibial plateau, but showed no traumatic amputation. CONCLUSIONS::
Development of protective footwear against landmine blast is feasible 
. From medium mines up to charges of 100 g TNT limb salvage may be possible.
Cheers,
Hylton