Medizinische Universität Graz Austria/Österreich - Forschungsportal - Medical University of Graz
Gewählte Publikation:
SHR Neuro Krebs Kardio Lipid Stoffw Microb
Friesenbichler, J; Glehr, M; Sadoghi, P; Maurer-Ertl, W; Ott, F; Leithner, A.
In vivo testing of knee stability after rotating-hinge total knee arthroplasty: a comparison of 2 knee systems.
Orthopedics. 2012; 35(3):e335-e342
Doi: 10.3928/01477447-20120222-20
Web of Science
PubMed
FullText
FullText_MUG
- Führende Autor*innen der Med Uni Graz
- Friesenbichler Jörg
- Glehr Mathias
- Co-Autor*innen der Med Uni Graz
- Leithner Andreas
- Maurer-Ertl Werner
- Sadoghi Patrick
- Altmetrics:
- Dimensions Citations:
- Plum Analytics:
- Scite (citation analytics):
- Abstract:
- Rotating-hinge knee prostheses are used for reconstruction in cases of severe articular compromise and major bone loss. Biomechanical studies revealed that rotating-hinge designs with long and cylindrical pegs are more stable than devices with short and more tapered ones. Twenty-five patients underwent clinical examination using ultrasound, radiographs, and 3 different rating systems to examine the in vivo stability and functional outcome of 2 rotating-hinge knee systems. Overall, the study revealed that a stable reconstruction could be achieved with both tested devices, with good functional outcome. The results for medial and lateral lift-off during flexion and extension in ultrasonography were comparable, whereas the measured distraction of the Limb Preservation System (LPS/M.B.T.; DePuy, Warsaw, Indiana) was lower compared with the S-ROM Noiles prostheses (DePuy). The implant, the new formed capsule, and the remaining soft tissues have to maintain joint stability. Soft tissue reconstruction, especially the medial gastrocnemius flap, and the newly formed periprosthetic scar seems to prevent distraction of several millimeters. In addition, determining the lift-off with ultrasonography showed that the shape of the peg does not influence implant's stability against lateral directed forces.
- Find related publications in this database (using NLM MeSH Indexing)
- Adolescent -
- Adult -
- Aged -
- Aged, 80 and over -
- Equipment Failure Analysis -
- Female -
- Humans -
- Joint Instability - diagnosis Joint Instability - surgery
- Knee Joint - surgery
- Knee Prosthesis -
- Male -
- Middle Aged -
- Prosthesis Design -
- Range of Motion, Articular -
- Recovery of Function -
- Treatment Outcome -