A device for stabilizing a fractured pelvis, comprising: (a) an elongate main body portion having opposite first and second end portions (18, 26); (b) a buckle fixedly attached to said first end portion of said main body portion; (c) a flexible elongate strap having an inner end permanently attached to said second end portion of said main body portion, the strap extending away from the main body portion and having an outer end portion opposite from said inner end thereof, the strap being of a size to pass through the buckle and the buckle being adapted to engage the strap so as to interconnect the first and second end portions (18, 26) of the main body portion with each other, and an intermediate portion of the strap, located between the outer end portion of the strap and the second end portion of the main body portion, having an area of flexible fastener material of a first kind located on a first side of the strap; (d) an area of flexible fastener material of a second kind that is cooperatively mateable with the flexible fastener material of the first kind, located on the outer end portion of the strap; (e) an area of flexible fastener material of the first kind located in the second end portion of the main body portion where the outer end portion of the strap can be fastened to the second end portion of the main body portion by mating cooperation of the respective areas of flexible fastener material (48, 54) of the first and second kinds, when the device is adjusted to a circumference in a predetermined first range of circumferences; and (f) an area of flexible fastener material of the second kind, located on the second end portion of the main body portion adjacent the area of flexible fastener material of the first kind, where the intermediate portion of the strap can be fastened to the second end portion of the main body portion by mating cooperation of the flexible fastener material of the first kind located on the intermediate portion of the strap with the flexible fastener material of the second kind located on the second end portion of the main body portion when the device is adjusted to a circumference in a range of circumferences smaller than said first range of circumferences. (a) an elongate main body portion having opposite first and second end portions (18, 26); (b) a buckle fixedly attached to said first end portion of said main body portion; (c) a flexible elongate strap having an inner end permanently attached to said second end portion of said main body portion, the strap extending away from the main body portion and having an outer end portion opposite from said inner end thereof, the strap being of a size to pass through the buckle and the buckle being adapted to engage the strap so as to interconnect the first and second end portions (18, 26) of the main body portion with each other, and an intermediate portion of the strap, located between the outer end portion of the strap and the second end portion of the main body portion, having an area of flexible fastener material of a first kind located on a first side of the strap; (d) an area of flexible fastener material of a second kind that is cooperatively mateable with the flexible fastener material of the first kind, located on the outer end portion of the strap; (e) an area of flexible fastener material of the first kind located in the second end portion of the main body portion where the outer end portion of the strap can be fastened to the second end portion of the main body portion by mating cooperation of the respective areas of flexible fastener material (48, 54) of the first and second kinds, when the device is adjusted to a circumference in a predetermined first range of circumferences; and (f) an area of flexible fastener material of the second kind, located on the second end portion of the main body portion adjacent the area of flexible fastener material of the first kind, where the intermediate portion of the strap can be fastened to the second end portion of the main body portion by mating cooperation of the flexible fastener material of the first kind located on the intermediate portion of the strap with the flexible fastener material of the second kind located on the second end portion of the main body portion when the device is adjusted to a circumference in a range of circumferences smaller than said first range of circumferences.