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Table 4 Micromotions of the prosthesis in the longitudinal axis in µm

From: Primary stability of the Activ L® intervertebral disc prosthesis in cadaver bone and comparison of the keel and spike anchoring concept

Anchoring Type

Mean

Median

IQRa

Std. Deviation

Std. Error of Mean

Lower 95 % CI

Upper 95 % CI

Aesculap Keel

157.00

155.40

21.90

11.37

4.64

145.00

168.90

Aesculap Spikes

141.40

135.10

73.98

42.70

17.43

96.55

186.90

  1. aIQR inter-quartile range
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BMC Musculoskeletal Disorders

ISSN: 1471-2474

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