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Z Orthop Unfall. 2013 Oct;151(5):497-502. doi: 10.1055/s-0033-1350862. Epub 2013 Oct 15.

[Anatomic reconstruction of hip joint biomechanics with the bone preserving Silent Micro Hip™ prosthesis].

[Article in German]

Author information

1
Klinik und Poliklinik für Orthopädie und Unfallchirurgie, Universität zu Köln.

Abstract

BACKGROUND:

The design and the surgical technique of the Silent Micro Hip™ are different compared to other hip stems due to a conical shape for fixation within the metaphyseal femur. The purpose of the present study was to evaluate hip joint biomechanics of the Silent Micro Hip™ in comparison to other implants. Implant-specific differences are highlighted.

MATERIAL AND METHOD:

150 consecutive patients (each group 50 Silent Micro Hip™, Nanos™ and SL-Plus™ MIA) were analysed retrospectively. For evaluation of biomechanical parameters pre- and postoperative X-rays (pelvic AP views) were used.

RESULTS:

The horizontal femoral offset and the limb length showed no significant difference between the Silent Micro Hip™ and the Nanos™ or SL-Plus™ MIA stem at the reconstructed hip. An almost anatomic reconstruction of hip joint biomechanics was reached with all three types of implants.

CONCLUSIONS:

The Silent Micro Hip™ allows for almost anatomic reconstruction of hip joint biomechanics. Short-term results support the bone-preserving reconstruction with a proximal femoral load transfer. Further studies on the mid- and long-term outcomes are ongoing.

PMID:
24129720
DOI:
10.1055/s-0033-1350862
[Indexed for MEDLINE]

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