TY  - JOUR
T1  - Determination of The Hip Stem Loosening Using Vibration Method
AU  - Çelik, Talip
AU  - Kisioglu, Yasin
PY  - 2019
DA  - June
JF  - European Journal of Engineering and Natural Sciences
PB  - CNR Çevre
WT  - DergiPark
SN  - 2458-8156
SP  - 73
EP  - 77
VL  - 3
IS  - 1
LA  - en
AB  - Asepticloosening is a common problem in total hip replacement surgery. Routineradiological imaging techniques are used for postoperative diagnosis. Thealternative technique is required to develop because of the low success rate incurrent diagnostic techniques. The purpose of this study is to develop the newmethod to diagnose the aseptic loosening of the stem using vibration technique.Two different experimental setups were established in this study, vibrationaland cyclic loading tests. In the vibrational test, the bone-prosthetic modelswere vibrated from the distal femur at a certain frequency and then thevibration data were taken via accelerometer from the trochanter region of thefemur. The vibration data were converted to the frequency domain forevaluations. The stability of the femur-prosthesis system was determined byevaluating the fundamental frequency change and harmonics generated at the FFTanalysis. In the cyclic loading test, the femur-prosthesis system was forced tofatigue at a maximum amplitude of 1700 N and 1 Hz frequency. After every 5000cycles in the test, the femoral prosthesis system was connected to thevibrational test and the loosening of the system was considered. After 115000 cycles,the harmonic frequencies were observed and the amplitude value of thefundamental frequency was decreased. The experiments were stopped when the stemwas pulled out easily from the femur. As the degree of the loosening increased,the number of the harmonics increased and the fundamental frequency valuesdecreased. In conclusion, the vibration method can be used as an alternativetechnique to determine the degree of the hip stem loosening.
KW  - Aseptic loosening
KW  - Total Hip Prosthesis
KW  - Vibration Technique
KW  - Cyclic Loading
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UR  - https://dergipark.org.tr/tr/pub/ejens/issue//484260
L1  - https://dergipark.org.tr/tr/download/article-file/745620
ER  -