Article Figures & Data
Figures
- Figure 1
Changes in VAS scores for arthroplasty (A) and fusion (B) patients, by time point. The “*” indicates statistical significance compared to the no prior surgery subgroups (ANG or FNG).
- Figure 2
Changes in ODI scores for arthroplasty (A) and fusion (B) patients, by time point. The “*” indicates statistical significance compared to the no prior surgery subgroups (ANG or FNG)
- Figure 3
Percentage of patients employed in full- or part-time jobs, by subgroups and time points.
- Figure 4
Percentage of patients who were “satisfied” or “somewhat satisfied” with the procedure at the various time points and by subgroups.
Tables
Demographics Arthroplasty Fusion Prior Surgery Discectomy No Prior Surgery Prior Surgery Discectomy No Prior Surgery Number of Subjects 37 21 53 12 6 31 Gender Female 14 (38%) 9 (43%) 29 (55%) 6 (50%) 3 (50%) 13 (42%) Male 23 (62%) 12 (57%) 24 (45%) 6 (50%) 3 (50%) 18 (58%) Age (Years) Mean (Std) 38.4 (8.48) 40.1 (8.64) 41.0 (8.57) 35.3 (5.89) 37.8 (5.56) 40.2 (9.28) Median 40 43 41 36 38.5 42 Min, Max 19, 55 20, 55 21, 60 25, 43 28, 43 25, 55 Height (cm) Mean (Std) 175.4 (8.72) 174.5 (9.09) 172.5 (9.86) 172.5 (9.71) 173.1 (10.46) 173.8 (8.77) Median 175.3 175.3 172.7 174 174 172.7 Min, Max 157, 193 157, 191 150, 191 155, 185 155, 185 157, 191 Weight (kg) Mean (Std) 80.8 (17.73) 79.3 (17.59) 79.4 (14.97) 83.1 (14.04) 80.8 (19.31) 81.0 (16.71) Median 81.6 81.2 80.7 86.2 86 77.1 Min, Max 51, 120 51, 120 52, 111 54, 109 54, 109 54, 118 Body Mass Index Mean (Std) 26.1 (4.45) 25.9 (4.71) 26.6 (3.92) 28.1 (5.13) 27.0 (6.31) 26.7 (4.69) Median 26.6 27.1 26.3 28.6 27.3 26.3 Min, Max 19, 34 19, 33 17, 37 19, 36 19, 36 19, 40 Targeted Level L4-5 10 (27%) 4 (19%) 16 (30%) 5 (42%) 3 (50%) 5 (16%) L5-S1 27 (73%) 17 (81%) 37 (70%) 7 (58%) 3 (50%) 26 (84%) Demographics Arthroplasty Fusion Prior Surgery Discectomy No Prior Surgery Prior Surgery Discectomy No Prior Surgery N 37 21 53 12 6 31 Total Surgery Time (Min) Mean (Std) 97.5 (29.44) 95.6 (29.42) 115.6 (53.69) 106.3 (66.58) 81.8 (29.14) 128.2 (66.23) Median 88 87 99 74 67.5 115 Min, Max 56, 175 56, 175 45, 250 55, 248 62, 137 60, 355 Estimated Blood Loss (cc) Mean (Std) 158.3 (143.3) 145.2 (124.65) 248.7 (277.81) 251.6 (440.72) 341.5 (618.46) 186.0 (169.19) Median 100 100 150 75 99.5 150 Min, Max 50, 600 50, 500 25, 1500 50, 1600 50, 1600 20, 700 Duration of Hospital Stay Mean (Std) 3.7 (0.97) 3.8(1.22) 3.7(.86) 4.3(2.50) 3.5(0.55) 4.3(1.47) Median 4 4 4 4 3.5 4 Min, Max 1, 6 1, 6 2, 6 3, 12 3, 4 2, 8 By Gender Count % % Male 8,733 43.2% % Female 11,471 56.8% Total 20,204 100.0% - Table 2
Average Charges for Posterior Lumbar Fusion in the United States by Gender, 2004-2007
By Gender Count Average Charge Male 8733 $79,795 Female 11471 $79,903 By Gender Count % % Male 1,121 41.9% % Female 1,552 58.1% Total 2,673 100.0% - Table 4
Average Charge for 360 degree Lumbar Fusions in the United States by Gender, 2004-2007
By Gender Count Average Charge % Male 1,121 $126,777 % Female 1,552 $125,696 Region Average Charge Northeast $79,785 Midwest $79,401 West $109,985 South $93,169 Year Average Charge % Change 2004 $68,397 2005 $73,527 7.5% 2006 $81,728 11.2% 2007 $91,275 11.7% Year Average Charge % Change 2004 $109,079 2005 $112,151 2.8% 2006 $133,203 18.8% 2007 $141,056 5.9% - Table 8
Postoperative Complications by ICD-9 Code, Posterior Lumbar Fusion in the United States, 2004-2007
Count % Total Posterior Lumbar Fusions 20,204 Cardiac 997.1, 410.0-410.9, 998.0 148 0.73% Respiratory 997.3, 415.1, 518.0-518.4 965 4.78% Peripheral 997.2 7 0.03% CNS 997.0,997.00,997.01,997.09 291 1.44% Hematoma 998.1,998.11,998.12,998.13 691 3.42% Accidental cut / hemorrage 998.2, E870.0 646 3.20% Complication of operative wound 998.3,998.31,998.32,998.83 125 0.62% Postoperative infection 998.5,999.3,998.51,998.59 446 2.21% Other unspecified complications 998.8, 998.89,998.9,999.9,
E8788,E8789434 2.15% CSF leak 349.0, 998.6 57 0.28% Vertebral injury 900.00, 900.01, 900.02, 900.03,
900.82,900.89,900.9,997.02,954.03 0.01% Mechanical Compliation of Implant or Graft 996.4, 996.40 888 4.40% - Table 9
Postoperative Complications, 360 degree Lumbar Fusion in the United States, 2004-2007
Count % Total 360 Lumbar Fusions 2,673 Cardiac 997.1, 410.0-410.9, 998.0 27 1.01% Respiratory* 997.3, 415.1, 518.0-518.4 178 6.66% Peripheral 997.2 1 0.04% CNS 997.0,997.00,997.01,997.09 30 1.12% Hematoma 998.1,998.11,998.12,998.13 106 3.97% Accidental cut / hemorrage 998.2, E870.0 108 4.04% Complication of operative wound 998.3,998.31,998.32,998.83 20 0.75% Postoperative infection 998.5,999.3,998.51,998.59 48 1.80% Other unspecified complications 998.8, 998.89,998.9,999.9, E8788,E8789 71 2.66% CSF leak 349.0, 998.6 1 0.04% Vertebral injury 900.00, 900.01, 900.02, 900.03, 900.82,90 0.89,900.9,997.02,954.0 1 0.04% Mechanical Complication of Implant or Graft 996.4, 996.40 174 6.51%
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