Access strategies for revision or explantation of the Charité lumbar artificial disc replacement

Wear of the Charité® lumbar intervertebral disc replacement investigated using an electro-mechanical spine simulator

The Charité(®) lumbar intervertebral disc replacement was subjected to wear testing in an electro-mechanical spine simulator. Sinusoidally varying compression (0.6-2 kN, frequency 2 Hz), rotation (±2°, frequency 1 Hz), flexion-extension (6° to -3°, frequency 1 Hz) and lateral bending (±2°, frequency 1 Hz) were applied out of phase to specimens immersed in diluted calf serum at 37 °C. The mass o...

‏‎facilitating lexical access for the fluent production of speech‎‏

‏‎the hypothesis is that recent and frequent exposure to lexical items leads to a more fluent production of speech in terms of rate of speech. to test the hypothesis , a one- way anova experimental design was carried out. 24 senior student of efl participated in a one-way interview test. data analyses revealed that those who were exposed frequently to the lexical items over a week prior to inte...

‏‎faciliting lexical access for the fluent production of speech‎‏

‏‎the hypothesis is that recent and frequent exposure to lexical items leads to a more fluent production of speech in terms of rate of speech. to test the hypothesis,a one-way anova experimental design was carried out. 24 sednior students of efl participated in a one-way interview test. data analyses revealed that those who were exposed frequently to the lexical items over a week prior to inter...

Artificial Disc Replacement for Degenerative Disc Disease of the Lumbar Spine

Total lumbar disc replacement.

©2005 British Editorial Society of Bone and Joint Surgery doi:10.1302/0301-620X.87B8. 16151 $2.00 J Bone Joint Surg [Br] 2005;87-B:1029-37. Rationale for total lumbar disc replacement In the early 20th century, surgical fusion of one or more ‘functional spinal units’ (FSU) was developed and primarily performed for the treatment of spinal infection. 1-4 In the second half of the century, the ind...