Die anatomische Rekonstruktion des Hüftgelenks: ein Vergleich von Kurz- und Standardschaft
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Die anatomische Rekonstruktion des Hüftgelenks: ein Vergleich von Kurz- und Standardschaft. / Ries, C; Schopf, W; Dietrich, F; Franke, S; Jakubowitz, E; Sobau, C; Heisel, C.
in: Z ORTHOP UNFALLCHIR, Jahrgang 153, Nr. 1, 02.2015, S. 46-50.Publikationen: SCORING: Beitrag in Fachzeitschrift/Zeitung › SCORING: Zeitschriftenaufsatz › Forschung › Begutachtung
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TY - JOUR
T1 - Die anatomische Rekonstruktion des Hüftgelenks: ein Vergleich von Kurz- und Standardschaft
AU - Ries, C
AU - Schopf, W
AU - Dietrich, F
AU - Franke, S
AU - Jakubowitz, E
AU - Sobau, C
AU - Heisel, C
N1 - Georg Thieme Verlag KG Stuttgart · New York.
PY - 2015/2
Y1 - 2015/2
N2 - BACKGROUND: Currently, short cementless femoral stems are alternative implants to treat osteoarthritis in young patients with sufficient bone quality in order to get a more proximal load transfer. The purpose of the present study was to biomechanically compare joint reconstructions resulting from implantations of a short-stemmed and a conventional hip replacement.METHODS: 100 patients (50 short-stemmed and 50 conventional) were retrospectively examined. For evaluation of biomechanical parameters standardised pre- and postoperative X-rays (pelvic AP views) were used and digitally analysed.RESULTS: The horizontal femoral off-set increased within both groups (short: 2.0 mm and conventional: 3.3 mm), with a significant increase in the conventional group. The hip centre of rotation was significantly medialised after both procedures (short: 6.0 mm and conventional: 4.2 mm). Limb length was shorter preoperatively at the arthroplasty side, but increased thereafter (short: 2.1 mm and conventional: 2.6 mm). Compared to the native contralateral side the limb length was almost equal after THA (short: 0.7 mm and conventional: 0.8 mm).CONCLUSIONS: Our study shows that an almost anatomic reconstruction of hip joint biomechanics is possible with a short-stemmed prosthesis compared to a conventional stem, regarding limb length, centre of rotation and offset.
AB - BACKGROUND: Currently, short cementless femoral stems are alternative implants to treat osteoarthritis in young patients with sufficient bone quality in order to get a more proximal load transfer. The purpose of the present study was to biomechanically compare joint reconstructions resulting from implantations of a short-stemmed and a conventional hip replacement.METHODS: 100 patients (50 short-stemmed and 50 conventional) were retrospectively examined. For evaluation of biomechanical parameters standardised pre- and postoperative X-rays (pelvic AP views) were used and digitally analysed.RESULTS: The horizontal femoral off-set increased within both groups (short: 2.0 mm and conventional: 3.3 mm), with a significant increase in the conventional group. The hip centre of rotation was significantly medialised after both procedures (short: 6.0 mm and conventional: 4.2 mm). Limb length was shorter preoperatively at the arthroplasty side, but increased thereafter (short: 2.1 mm and conventional: 2.6 mm). Compared to the native contralateral side the limb length was almost equal after THA (short: 0.7 mm and conventional: 0.8 mm).CONCLUSIONS: Our study shows that an almost anatomic reconstruction of hip joint biomechanics is possible with a short-stemmed prosthesis compared to a conventional stem, regarding limb length, centre of rotation and offset.
KW - Arthroplasty, Replacement, Hip/instrumentation
KW - Equipment Failure Analysis
KW - Female
KW - Hip Joint/diagnostic imaging
KW - Hip Prosthesis
KW - Humans
KW - Male
KW - Middle Aged
KW - Osteoarthritis, Hip/diagnosis
KW - Prosthesis Design
KW - Radiography
KW - Range of Motion, Articular
KW - Treatment Outcome
U2 - 10.1055/s-0034-1396230
DO - 10.1055/s-0034-1396230
M3 - SCORING: Zeitschriftenaufsatz
C2 - 25723580
VL - 153
SP - 46
EP - 50
JO - Z ORTHOP UNFALLCHIR
JF - Z ORTHOP UNFALLCHIR
SN - 1864-6697
IS - 1
ER -
