Transmetatarsal amputation (TMA) try a somewhat common process that’s performed to guard limb stability
- Opinions
Physiology
The fresh new metatarsal bones was numbered step 1 as a result of 5, out-of medial so you can lateral. For each metatarsal have a head, shoulder, axle, and you can ft. This new metatarsal skeleton is around cylindrical in form. The human body tapers gradually regarding proximal with the distal stop. He or she is rounded in the a lot of time axis and give a concave plantar surface and a good convex dorsal facial skin.
The base during the proximal avoid is wedge-shaped, articulating proximally for the tarsal skeleton and also by their edges which have new contiguous metatarsal bones; their dorsal and you may plantar counters try crude toward attachment away from ligaments.
Your face in the distal end gift ideas a beneficial convex articular body, oblong out-of significantly more than downwards, and you will stretching farther backward plantar than just dorsal. Their sides is actually flattened, as well as on all are an anxiety, surmounted by the good tubercle, to possess ligamentous accessory. Their plantar body try grooved anteroposteriorly and you can noted on the either side of the an articular eminence continued into the critical articular epidermis.
Effects
Statistics regarding the 90s revealed that as much as ten,000 TMAs have been did in the united states, weighed against thirty two,100000 over-lower body amputations (AKAs) and you will twenty two,000 below-lower body amputations (BKAs). TMA, when possible, ‘s the logical taste because it is truly the only amputation procedure that enables to have potential weightbearing.
Rehabilitation of far more proximal amputations (such as for example, AKAs and BKAs) getting peripheral vascular situation (PVD) are rarely a survival. Only 5% away from amputees mobilize away from boundaries of the home with a beneficial prosthesis, and more than of these that do might be wheelchair-situated in this 5 years. (más…)