[Biomechanical effects of intra-articular ankle bone fractures on the ankle joint. An experimental study].
Intraarticular heelbone fractures lead to cartilage damage by way of joint surface incongruence. This causes arthrosis of the lower ankle joint. The influence of a dislocated calcaneus fracture on the upper ankle joint was documented in an experimental study on eight cadaver legs. We performed an osteotomy of the calcaneus to imitate a typical fracture, placed a pressure film into the upper ankle joint and subjected the joint to axial pressure of 850 N. Changes in contact area and pressure pattern were measured in different flexion/extension positions of the foot. Results with respect to total contact area and high-pressure contact zone are discussed.
Paar
O
O
Chirurgische Klinik, RWTH Aachen.
Knauf
M
M
Trautwein
S
S
D000843:Ankle Joint / Q000503:physiopathology*; D001696:Biomechanical Phenomena; D002111:Calcaneus / Q000293:injuries*; D050723:Fractures, Bone / Q000503:physiopathology*; D006801:Humans; D011312:Pressure
Biomechanische Auswirkungen intraartikulärer Fersenbeinfrakturen auf das obere Sprunggelenk. Eine experimentelle Untersuchung.