Lid Implants Berghaus / Schrom Platinum chain (Lid-Chain)
SPIGGLE & THEIS Medizintechnik GmbH
Burghof 14 51491 Overath (Germany) Tel: 02206 / 90 81 - 0 Fax: 02206 / 90 81 -13 info@spiggle-theis.de www.spiggle-theis.de www.spiggle-theis.com
Platinum Chain (Lid-Chain) – more flexibility for your patients The Lid-Chain is an implant, used to correct Lagophthalmos resulting from facial paralysis, specifically defects of the orbicularis oculi muscle. Various implants can be used to treat Lagophthalmos resulting from facial paralysis. Using gold implants, as first described by Illig in 1958, is a well-established procedure. When carried out correctly, this procedure can lead to complete lid closure without loss in the field of vision. The operation is technically simple, reversible without difficulty and where necessary it can be combined with other lid corrective procedures. This makes this method appropriate for cases of both reversible and non-reversible facial paralysis. Post-operative complications when using gold weight are not uncommon however (see side 4). Ultra-sound examinations of the upper lid tarsus brought to light the need for a flexible lid implant. The flexible platinum Lid-Chain was developed to reduce post-operative complications. The advantages of using platinum can be found in several clinical studies. Along with the better tissue compatibility of platinum in comparison with gold, the high density of platinum leads to a 10% reduction in volume, when compared to the usual gold implants. The flexibility of the chain enables optimal pre-tarsal alignment, both this and the maintenance of long-term flexibility are confirmed by ultra-sound examination results. This, in turn, greatly reduces post-operative complications and increases the effectiveness of this treatment greatly. In further testing, the MRT compatibility of the various sizes of Lid-Chain was proved for MRT systems registering between 1.5 and 3.0 Tesla.
Source: Development and evaluation of a lid implant for use in the surgical correction of lagophthalmos with peripheral facial paralysis, Schrom 2005
Front view of an implanted platinum chain
Schematic diagram: Front view of an implanted platinum chain
Schematic diagram: Sagittal view of an implanted platinum chain
The advantages of lid-loading:
2 Complete closing of the eyelid 2 Completely reversible with no complications 2 No restriction of the peripheral vision with binoculare eyesight 2 Can be combined with other surgical eyelid corrective procedures
The advantages of the Lid-Chain in comparison with conventional implants:
Flexible chain
2 Flexible 2 Optimal tissue compatibility 2 Increased density (volume reduction > 10%) 2 Optimal pretarsal placement 2 Reduction in post-operative complications 2 Excellent results
Rigid implant
Lid-Chains Material Lid-Chain: Platin/Iridium (Pt/Ir) alloy, 97% / 3%. Art.-No.
Weight
Packaging
0.6g 0.8g 1.0g 1.2g 1.4g 1.6g 1.8g 2.0g
1 piece 1 piece 1 piece 1 piece 1 piece 1 piece 1 piece 1 piece
1500-06 1500-08 1500-10 1500-12 1500-14 1500-16 1500-18 1500-20
Lid-Chain-Model
Technical drawing of Lid-Chain
Tips for fixing the Lid-Chains in position: Use only very slowly or non-absorbable stitching material (e.g. 6-0 with a P3 needle) The lid chain has several holes for pre-tarsal fixation. There should be at least 4 fixation points for the 0.6g chain, 6 for the chains from 0.8-1.6g and 8 for the 1.8- 2.0g chains. Each fixation point must be stitched individually.
Comparsion of post-operative complications when using platinum chains and gold implants
Source: Development and evaluation of a lid implant for use in the surgical correction of lagophthalmos with peripheral facial paralysis, Schrom 2005
Test Weights The implants are available in eight different weights, ranging from 0.6 g to 2.0 g. The optimal weight is ascertained by way of a preoperative “test fitting“. For this purpose test weights are used which are fixed with an adhesive strip onto the eyelid, in order to determine which weight is needed to result in the desired level of eyelid closure. Material Test weights: Stainless steel - not for implantation!
Test weights and a Lid-Chain in comparsion
Test weights, non-sterile Art.-No.
Description
Test weight 0.6g Test weight 0.8g Test weight 1.0g Test weight 1.2g Test weight 1.4g Test weight 1.6g Test weight 1.8g Test weight 2.0g Strips Test weight set
1500-PG06 1500-PG08 1500-PG10 1500-PG12 1500-PG14 1500-PG16 1500-PG18 1500-PG20 1500-PGKS 1500-PGSET
Weight
Packaging 1 piece 1 piece 1 piece 1 piece 1 piece 1 piece 1 piece 1 piece 50 pieces / box 8 pieces / box F_LC_EN_02