Article Figures & Data
Figures
- Fig. 1
Cutaway view of single-piece M6-C compressible prosthesis.
- Fig. 2
Mean NDI through 24-month follow-up. (Pre-op, preoperatively.)
- Fig. 3
Mean VAS scores for neck pain through follow-up. (Pre-op, preoperatively.)
- Fig. 4
Mean VAS scores for right and left arm pain. (Pre-op, preoperatively.)
- Fig. 5
Mean anterior and posterior disc space heights. (Pre-op, preoperatively.)
- Fig. 6
Mean disc angle preoperatively through follow-up.
- Fig. 7
Mean global and index-level ROM. (Pre-op, preoperatively.)
- Fig. 8
Mean left/right lateral bending of implanted level. (Pre-op, preoperatively.)
- Fig. 9
Flexion (A) and extension (B) radiographs of TDRs at C5-6 level with 8.4° of motion and at C6-7 level with 12.4°. The global motion was 39.6°.
Tables
Operative parameters 1 Level (n = 12) 2 Levels(n = 18) Estimated blood loss (mL) 33.7 ± 17.4 66.8 ± 24.9 Operative time (min) 67.1 ± 21.4 128.6 ± 31.8 Hospital stay (d) 1.1 ± 0.3 1.4 ± 0.8 NOTE. Values are mean ± standard deviation.
Time point SF-36 component score No. of patients Mean SD P value (preoperatively vs postoperatively) Preoperatively PCS score 30 30.40 9.05 MCS score 30 40.06 12.56 6 wk PCS score 9 40.82 8.43 .0138 MCS score 9 50.50 10.14 .126 3 mo PCS score 30 41.90 10.34 <.0001 MCS score 30 47.23 13.32 .0145 6 mo PCS score 28 46.59 9.41 <.0001 MCS score 28 48.05 14.22 .0136 12 mo PCS score 28 48.75 9.45 <.0001 MCS score 28 49.11 14.20 .0118 24 mo PCS score 28 47.74 11.04 <.0001 MCS score 28 46.30 13.34 .1364 1 Level 2 Level Preoperatively Postoperatively Preoperatively Postoperatively P value No. of patients 12 12 18 16 NDI 73.7 ± 13.1 31.7 ± 19.3 63.9 ± 13.7 13.4 ± 13.2 .26 VAS for neck pain 8.0 ± 2.2 4.0 ± 3.2 7.5 ± 2.0 0.8 ± 1.1 .03 VAS for right arm pain 7.0 ± 2.0 3.2 ± 2.9 5.4 ± 3.4 0.9 ± 1.5 .97 VAS for left arm pain 7.2 ± 2.6 2.6 ± 2.9 5.6 ± 3.5 0.5 ± 1.1 .81 SF-36 PCS 25.3 ± 9.7 40.6 ± 10.4 33.8 ± 7 53.1 ± 8.3 .41 SF-36 MCS 41.3 ± 13.3 39.8 ± 14.6 39.2 ± 12.3 51.1 ± 10.3 .09 NOTE. Values are mean ± standard deviation; P values represent the comparison of the 2 groups based on the change from baseline to 24-month follow-up.
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