Smartphone GPS signatures of patients undergoing spine surgery correlate with mobility and current gold standard outcome measures

2021 ◽  
pp. 1-11
Author(s):  
Alessandro Boaro ◽  
Jeffrey Leung ◽  
Harrison T. Reeder ◽  
Francesca Siddi ◽  
Elisabetta Mezzalira ◽  
...  
Keyword(s):  
Physical Performance ◽  
Outcome Measures ◽  
Spine Surgery ◽  
Gold Standard ◽  
Recovery Period ◽  
Patient Mobility ◽  
Current Gold Standard ◽  
Daily Average ◽  
Daily Mobility ◽  
Patient Reported

OBJECTIVE Patient-reported outcome measures (PROMs) are currently the gold standard to evaluate patient physical performance and ability to recover after spine surgery. However, PROMs have significant limitations due to the qualitative and subjective nature of the information reported as well as the impossibility of using this method in a continuous manner. The smartphone global positioning system (GPS) can be used to provide continuous, quantitative, and objective information on patient mobility. The aim of this study was to use daily mobility features derived from the smartphone GPS to characterize the perioperative period of patients undergoing spine surgery and to compare these objective measurements to PROMs, the current gold standard. METHODS Eight daily mobility features were derived from smartphone GPS data in a population of 39 patients undergoing spine surgery for a period of 2 months starting 3weeks before surgery. In parallel, three different PROMs for pain (visual analog scale [VAS]), disability (Oswestry Disability Index [ODI]) and functional status (Patient-Reported Outcomes Measurement Information System [PROMIS]) were serially measured. Segmented linear regression analysis was used to assess trends before and after surgery. The Student paired t-test was used to compare pre- and postoperative PROM scores. Pearson’s correlation was calculated between the daily average of each GPS-based mobility feature and the daily average of each PROM score during the recovery period. RESULTS Smartphone GPS features provided data documenting a reduction in mobility during the immediate postoperative period, followed by a progressive and steady increase with a return to baseline mobility values 1 month after surgery. PROMs measuring pain, physical performance, and disability were significantly different 1 month after surgery compared to the 2 immediate preoperative weeks. The GPS-based features presented moderate to strong linear correlation with pain VAS and PROMIS physical score during the recovery period (Pearson r > 0.7), whereas the ODI and PROMIS mental scores presented a weak correlation (Pearson r approximately 0.4). CONCLUSIONS Smartphone-derived GPS features were shown to accurately characterize perioperative mobility trends in patients undergoing surgery for spine-related diseases. Features related to time (rather than distance) were better at describing patient physical and performance status. Smartphone GPS has the potential to be used for the development of accurate, noninvasive and personalized tools for patient mobility monitoring after surgery.

Physical Performance Tests Provide Distinct Information in Both Predicting and Assessing Patient-Reported Outcomes Following Lumbar Spine Surgery

Spine ◽  
2020 ◽  
Vol 45 (23) ◽  
pp. E1556-E1563
Author(s):  
Hiral Master ◽  
Jacquelyn S. Pennings ◽  
Rogelio A. Coronado ◽  
Abigail L. Henry ◽  
Michael T. O’Brien ◽  
...  
Keyword(s):  
Lumbar Spine ◽  
Physical Performance ◽  
Spine Surgery ◽  
Patient Reported Outcomes ◽  
Lumbar Spine Surgery ◽  
Performance Tests ◽  
Patient Reported

Cost-effectiveness Applications of Patient-reported Outcome Measures (PROMs) in Spine Surgery

2020 ◽  
Vol 33 (4) ◽  
pp. 140-145
Author(s):  
Thomas J. Lee ◽  
Alexander A. Thomas ◽  
Nikhil R. Grandhi ◽  
Matthew S. Galetta ◽  
Dhruv K.C. Goyal ◽  
...  
Keyword(s):  
Cost Effectiveness ◽  
Outcome Measures ◽  
Spine Surgery ◽  
Patient Reported Outcome Measures ◽  
Patient Reported Outcome ◽  
Patient Reported

scholarly journals Impact of preoperative diagnosis on patient satisfaction following lumbar spine surgery

2017 ◽  
Vol 26 (6) ◽  
pp. 709-715 ◽  
Author(s):  
Charles H. Crawford ◽  
Leah Y. Carreon ◽  
Mohamad Bydon ◽  
Anthony L. Asher ◽  
Steven D. Glassman
Keyword(s):  
Patient Satisfaction ◽  
Outcome Measures ◽  
Spine Surgery ◽  
Disc Herniation ◽  
Preoperative Diagnosis ◽  
Patient Reported Outcome Measures ◽  
Patient Reported Outcome ◽  
Adjacent Segment Degeneration ◽  
Adjacent Segment ◽  
Patient Reported

OBJECTIVEPatient satisfaction is a commonly used metric in the current health care environment. While factors that affect patient satisfaction following spine surgery are complex, the authors of this study hypothesized that specific diagnostic groups of patients are more likely to be satisfied after spine surgery and that this is reflected in patient-reported outcome measures. The purpose of this study was to determine if the preoperative diagnosis—disc herniation, stenosis, spondylolisthesis, adjacent segment degeneration, or mechanical disc collapse—would impact patient satisfaction following surgery.METHODSPatients enrolled in the Quality Outcomes Database, formerly known as the National Neurosurgery Quality and Outcomes Database (N2QOD), completed patient-reported outcome measures, including the Oswestry Disability Index (ODI) and Numeric Rating Scale (NRS) for back pain (NRS-BP) and leg pain (NRS-LP) preoperatively and 1-year postoperatively. Patients were stratified by diagnosis and by their response to the satisfaction question: 1) surgery met my expectations; 2) I did not improve as much as I hoped, but I would undergo the same operation for the same results; 3) surgery helped, but I would not undergo the same operation for the same results; or 4) I am the same or worse as compared with before surgery.RESULTSA greater proportion of patients with primary disc herniation or spondylolisthesis reported that surgery met expectations (66% and 67%, respectively), followed by recurrent disc herniation and stenosis (59% and 60%, respectively). A smaller proportion of patients who underwent surgery for adjacent segment degeneration or mechanical disc collapse had their expectations met (48% and 41%, respectively). The percentage of patients that would undergo the same surgery again, by diagnostic group, was as follows: disc herniation 88%, recurrent disc herniation 79%, spondylolisthesis 86%, stenosis 82%, adjacent segment disease 75%, and mechanical collapse 73%. Regardless of diagnosis, mean improvement and ultimate 1-year postoperative ODI, NRS-BP, and NRS-LP reflected patient satisfaction.CONCLUSIONSPreoperative diagnosis was predictive of patient satisfaction following spine surgery. The mean change in and 1-year ODI, NRS-BP, and NRS-LP reflected patient satisfaction regardless of preoperative diagnosis.

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