Outcome
Type |
Measure |
Description |
Time frame |
Safety issue |
Primary |
Pain scores at admission to PACU |
Post operative pain scores will be measured using visual analog scale (VAS) scores at admission to PACU after surgery. The scale is 0-10 with a lower score indicating less pain. A score of 0 indicates no pain and a score of 10 indicates severe pain. |
Baseline (up to 30 days prior to surgery) to PACU admission (immediately post-operative) |
|
Primary |
Pain scores at admission to inpatient unit |
Post operative pain scores will be measured using visual analog scale (VAS) scores at admission to inpatient unit after surgery. The scale is 0-10 with a lower score indicating less pain. A score of 0 indicates no pain and a score of 10 indicates severe pain. |
At inpatient unit admission (within 24 hours after surgery) |
|
Primary |
Pain score at discharge from hospital |
Post operative pain scores will be measured using visual analog scale (VAS) scores at every 8 hours after admission to an inpatient unit until discharge. The scale is 0-10 with a lower score indicating less pain. A score of 0 indicates no pain and a score of 10 indicates severe pain. |
At hospital discharge (within 3 days of hospital discharge) |
|
Primary |
Pain score at 2-3 weeks (VAS) |
Post operative pain scores will be measured using visual analog scale (VAS) scores at the 2-3 week follow-up. The scale is 0-10 with a lower score indicating less pain. A score of 0 indicates no pain and a score of 10 indicates severe pain. |
2-3 weeks after surgery |
|
Primary |
Pain score at 4-6 weeks (VAS) |
Post operative pain scores will be measured using visual analog scale (VAS) scores at the 4-6 week follow-up. The scale is 0-10 with a lower score indicating less pain. A score of 0 indicates no pain and a score of 10 indicates severe pain. |
4-6 weeks after surgery |
|
Primary |
Pain score at 3 months (VAS) |
Post operative pain scores will be measured using visual analog scale (VAS) scores at the 3 month follow-up. The scale is 0-10 with a lower score indicating less pain. A score of 0 indicates no pain and a score of 10 indicates severe pain. |
3 months after surgery |
|
Primary |
Pain score at 2-3 weeks (Likert) |
Post-operative pain will be measured using a 10 point Likert pain score. The scale is 1 - 10 and a lower number indicates less pain. 1 is no pain and 10 is intense pain. |
2-3 weeks after surgery |
|
Primary |
Pain score at 4-6 weeks (Likert) |
Post-operative pain will be measured using a 10 point Likert pain score. The scale is 1 - 10 and a lower number indicates less pain. 1 is no pain and 10 is intense pain. |
4-6 weeks after surgery |
|
Primary |
Pain score at 3 months (Likert) |
Post-operative pain will be measured using a 10 point Likert pain score. The scale is 1 - 10 and a lower number indicates less pain. 1 is no pain and 10 is intense pain. |
3 months after surgery |
|
Primary |
Change in pain 24 hours after surgery |
The change of VAS score from the score at the time of post anesthesia care unit (PACU) arrival to 24 hours after surgery. Pain scores will be measured using visual analog scale (VAS) scores. The scale is 0-10 with a lower score indicating less pain. A score of 0 indicates no pain and a score of 10 indicates severe pain. |
24 hours after surgery |
|
Primary |
Change in back pain at 2-3 weeks |
The change of VAS score from the score at the time of post anesthesia care unit (PACU) arrival to 2-3 weeks after surgery. Pain scores will be measured using visual analog scale (VAS) scores at the 2-3 week follow-up. The scale is 0-10 with a lower score indicating less pain. A score of 0 indicates no pain and a score of 10 indicates severe pain. |
2-3 weeks after surgery |
|
Primary |
Change in back pain at 4-6 weeks |
The change of VAS score from the score at the time of post anesthesia care unit (PACU) arrival to 4-6 weeks after surgery. Pain scores will be measured using visual analog scale (VAS) scores at the 4-6 week follow-up. The scale is 0-10 with a lower score indicating less pain. A score of 0 indicates no pain and a score of 10 indicates severe pain. |
4-6 weeks after surgery |
|
Primary |
Change in back pain at 3 months |
The change of VAS score from the score at the time of post anesthesia care unit (PACU) arrival to 3 months after surgery. Pain scores will be measured using visual analog scale (VAS) scores at the 3 month follow-up. The scale is 0-10 with a lower score indicating less pain. A score of 0 indicates no pain and a score of 10 indicates severe pain. |
3 months after surgery |
|
Primary |
Change in right leg pain at 2-3 weeks |
The change of VAS score from the score at the time of post anesthesia care unit (PACU) arrival to 2-3 weeks after surgery. Pain scores will be measured using visual analog scale (VAS) scores at the 2-3 week follow-up. The scale is 0-10 with a lower score indicating less pain. A score of 0 indicates no pain and a score of 10 indicates severe pain. |
2-3 weeks after surgery |
|
Primary |
Change in right leg pain at 4-6 weeks |
The change of VAS score from the score at the time of post anesthesia care unit (PACU) arrival to 4-6 weeks after surgery. Pain scores will be measured using visual analog scale (VAS) scores at the 4-6 week follow-up. The scale is 0-10 with a lower score indicating less pain. A score of 0 indicates no pain and a score of 10 indicates severe pain. |
4-6 weeks after surgery |
|
Primary |
Change in right leg pain at 3 months |
The change of VAS score from the score at the time of post anesthesia care unit (PACU) arrival to 3 months after surgery. Pain scores will be measured using visual analog scale (VAS) scores at the 3 month follow-up. The scale is 0-10 with a lower score indicating less pain. A score of 0 indicates no pain and a score of 10 indicates severe pain. |
3 months after surgery |
|
Primary |
Change in left leg pain at 2-3 weeks |
The change of VAS score from the score at the time of post anesthesia care unit (PACU) arrival to 2-3 weeks after surgery. Pain scores will be measured using visual analog scale (VAS) scores at the 2-3 week follow-up. The scale is 0-10 with a lower score indicating less pain. A score of 0 indicates no pain and a score of 10 indicates severe pain. |
2-3 weeks after surgery |
|
Primary |
Change in left leg pain at 4-6 weeks |
The change of VAS score from the score at the time of post anesthesia care unit (PACU) arrival to 4-6 weeks after surgery. Pain scores will be measured using visual analog scale (VAS) scores at the 4-6 week follow-up. The scale is 0-10 with a lower score indicating less pain. A score of 0 indicates no pain and a score of 10 indicates severe pain. |
4-6 weeks after surgery |
|
Primary |
Change in left leg pain at 3 months |
The change of VAS score from the score at the time of post anesthesia care unit (PACU) arrival to 3 months after surgery. Pain scores will be measured using visual analog scale (VAS) scores at the 3 month follow-up. The scale is 0-10 with a lower score indicating less pain. A score of 0 indicates no pain and a score of 10 indicates severe pain. |
3 months after surgery |
|
Primary |
Opioid Consumption |
Opioid consumption will be measured in morphine milligram equivalents (MME). This is defined as the amount of milligrams of morphine an opioid dose is equal to. Opioid consumption measured in MME will be collected from PACU through 3 month follow up. |
PACU arrival through 3 months |
|
Secondary |
Satisfaction at 3 months |
Satisfaction of surgical outcome will be measured using a 10 point Likert scale. The scale is 1 - 10 and a higher number indicates higher satisfaction with the surgical outcome. 1 is very unsatisfied and 10 is very satisfied. |
3 months after surgery |
|
Secondary |
Satisfaction at 4-6 weeks |
Satisfaction of surgical outcome will be measured using a 10 point Likert scale. The scale is 1 - 10 and a higher number indicates higher satisfaction with the surgical outcome. 1 is very unsatisfied and 10 is very satisfied. |
4-6 weeks after surgery |
|
Secondary |
Satisfaction at 2-3 weeks |
Satisfaction of surgical outcome will be measured using a 10 point Likert scale. The scale is 1 - 10 and a higher number indicates higher satisfaction with the surgical outcome. 1 is very unsatisfied and 10 is very satisfied. |
2-3 weeks after surgery |
|
Secondary |
Number of Adverse Events |
Adverse events will be collected from the time of surgery through 3 months. |
Surgery to 3 months |
|