19 Harley St, London, W1G 9QJ, UK

Affect of implant size and bone defect state of affairs on main stability after distal femoral alternative in vitro.

Related Articles

Affect of implant size and bone defect state of affairs on main stability after distal femoral alternative in vitro.

Knee. 2017 Oct;24(5):1016-1024

Authors: Nadorf J, Klein SB, Gantz S, Jakubowitz E, Kretzer JP, Bischel OE

Summary
BACKGROUND: Aseptic loosening is the main motive for failure of distal femoral alternative utilizing present modular megaprostheses. Though the identical stems are used for proximal and distal alternative, survival charges in scientific research with distal reconstruction had been decrease inside the similar system in comparison with proximal reconstruction. We analyzed whether or not main stability as presupposition for long-term fixation will be achieved with a present tapered stem design. Moreover, we hypothesized that stem size impacts main stability relying on bone defect conditions.
METHODS: A modular tumor system (Megasystem-C®, Hyperlink GmbH, Hamburg, Germany) with two totally different tapered stems (100 and 160mm) was implanted in eight Sawbones® in two consecutively created defect conditions (10 and 20cm proximal to knee joint stage). Main rotational stability was investigated by measuring relative micromotions between implant and bone to establish the primary fixation areas and to characterize the fixation sample.
RESULTS: The fixation differed between the 2 stem lengths and with respect to each defect conditions; nevertheless in every case the primary fixation space was situated at or near the femoral isthmus. Highest relative micromotions had been measured with the 160-mm stem on the distal finish inside small bone defects and on the proximal finish when defects had been elevated.
CONCLUSIONS: The analyzed design appeared to create adequate main stability alongside the primary fixation areas of the implant. Based mostly on these outcomes and with respect to oncologic or potential revision conditions, we recommend using the shorter stem to be extra favorable in case of main implant fixation.

PMID: 28793976 [PubMed – indexed for MEDLINE]

Affect of implant size and bone defect state of affairs on main stability after distal femoral alternative in vitro | Fibromyalgia testicle pain

What our patients say ...

Consultant Spine Surgeon
Consultant Spine Surgeon
Consultant Spine Surgeon

This surgical technique consists of a percutaneous approach for the treatment of small to medium size hernias of the intervertebral disc by laser energy. The main objective is to reduce the intradiscal pressure in the nucleus pulposus

Laser Disc Surgery can be performed under local anaesthetic as a day case at our centre on the prestigious Harley Street.
What is London spine unit and How it Works

The London Spine Unit was established in 2005 and has successfully treated over 5000 patients. All conditions are treated.

treatment of all spinal disorders

The London Spine Unit specialises in Minimally Invasive Treatments allowing rapid recovery and return to normal function

Trusted by patients worldwide

The London Spine Unit provides the highest quality care to all patients and has VIP services for those seeking exceptional services

If you have any emergency Doctor’s need, simply call our 24 hour emergency

Your personal case manager will ensure that you receive the best possible care.

Call Now 

+44 844 589 2020
+44 203 973 8810