Temporal changes in pain processing after whiplash injury, based on Quantitative Sensory Testing: A systematic review
Jente Bontinck
Department of Rehabilitation Sciences and Physiotherapy, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium
Pain in Motion Research Group (PAIN), Department of Physiotherapy, Human Physiology and Anatomy (KIMA), Faculty of Physical Education & Physiotherapy, Vrije Universiteit Brussel, Brussels, Belgium
Search for more papers by this authorDorine Lenoir
Department of Rehabilitation Sciences and Physiotherapy, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium
Pain in Motion Research Group (PAIN), Department of Physiotherapy, Human Physiology and Anatomy (KIMA), Faculty of Physical Education & Physiotherapy, Vrije Universiteit Brussel, Brussels, Belgium
Search for more papers by this authorBarbara Cagnie
Department of Rehabilitation Sciences and Physiotherapy, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium
Search for more papers by this authorCarlos Murillo
Department of Rehabilitation Sciences and Physiotherapy, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium
Pain in Motion Research Group (PAIN), Department of Physiotherapy, Human Physiology and Anatomy (KIMA), Faculty of Physical Education & Physiotherapy, Vrije Universiteit Brussel, Brussels, Belgium
Search for more papers by this authorInge Timmers
Department of Rehabilitation Medicine, Maastricht University, Maastricht, Netherlands
Department of Cognitive Neuroscience, Maastricht University, Maastricht, Netherlands
Department of Anesthesiology, Perioperative, and Pain Medicine, Stanford University, Palo Alto, CA, United States
Search for more papers by this authorElise Cnockaert
Department of Rehabilitation Sciences and Physiotherapy, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium
Pain in Motion Research Group (PAIN), Department of Physiotherapy, Human Physiology and Anatomy (KIMA), Faculty of Physical Education & Physiotherapy, Vrije Universiteit Brussel, Brussels, Belgium
Search for more papers by this authorLisa Bernaers
Department of Rehabilitation Sciences and Physiotherapy, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium
Search for more papers by this authorCorresponding Author
Mira Meeus
Department of Rehabilitation Sciences and Physiotherapy, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium
Pain in Motion Research Group (PAIN), Department of Physiotherapy, Human Physiology and Anatomy (KIMA), Faculty of Physical Education & Physiotherapy, Vrije Universiteit Brussel, Brussels, Belgium
Department of Rehabilitation Sciences and Physiotherapy (MOVANT), Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium
Correspondence
Mira Meeus, Department of Rehabilitation Sciences, Ghent University, Corneel Heymanslaan 10 (3B3), 9000 Ghent, Belgium.
Email: [email protected]
Search for more papers by this authorIris Coppieters
Pain in Motion Research Group (PAIN), Department of Physiotherapy, Human Physiology and Anatomy (KIMA), Faculty of Physical Education & Physiotherapy, Vrije Universiteit Brussel, Brussels, Belgium
Department of Physical Medicine and Physiotherapy, University Hospital Brussels, Brussels, Belgium
Search for more papers by this authorJente Bontinck
Department of Rehabilitation Sciences and Physiotherapy, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium
Pain in Motion Research Group (PAIN), Department of Physiotherapy, Human Physiology and Anatomy (KIMA), Faculty of Physical Education & Physiotherapy, Vrije Universiteit Brussel, Brussels, Belgium
Search for more papers by this authorDorine Lenoir
Department of Rehabilitation Sciences and Physiotherapy, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium
Pain in Motion Research Group (PAIN), Department of Physiotherapy, Human Physiology and Anatomy (KIMA), Faculty of Physical Education & Physiotherapy, Vrije Universiteit Brussel, Brussels, Belgium
Search for more papers by this authorBarbara Cagnie
Department of Rehabilitation Sciences and Physiotherapy, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium
Search for more papers by this authorCarlos Murillo
Department of Rehabilitation Sciences and Physiotherapy, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium
Pain in Motion Research Group (PAIN), Department of Physiotherapy, Human Physiology and Anatomy (KIMA), Faculty of Physical Education & Physiotherapy, Vrije Universiteit Brussel, Brussels, Belgium
Search for more papers by this authorInge Timmers
Department of Rehabilitation Medicine, Maastricht University, Maastricht, Netherlands
Department of Cognitive Neuroscience, Maastricht University, Maastricht, Netherlands
Department of Anesthesiology, Perioperative, and Pain Medicine, Stanford University, Palo Alto, CA, United States
Search for more papers by this authorElise Cnockaert
Department of Rehabilitation Sciences and Physiotherapy, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium
Pain in Motion Research Group (PAIN), Department of Physiotherapy, Human Physiology and Anatomy (KIMA), Faculty of Physical Education & Physiotherapy, Vrije Universiteit Brussel, Brussels, Belgium
Search for more papers by this authorLisa Bernaers
Department of Rehabilitation Sciences and Physiotherapy, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium
Search for more papers by this authorCorresponding Author
Mira Meeus
Department of Rehabilitation Sciences and Physiotherapy, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium
Pain in Motion Research Group (PAIN), Department of Physiotherapy, Human Physiology and Anatomy (KIMA), Faculty of Physical Education & Physiotherapy, Vrije Universiteit Brussel, Brussels, Belgium
Department of Rehabilitation Sciences and Physiotherapy (MOVANT), Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium
Correspondence
Mira Meeus, Department of Rehabilitation Sciences, Ghent University, Corneel Heymanslaan 10 (3B3), 9000 Ghent, Belgium.
Email: [email protected]
Search for more papers by this authorIris Coppieters
Pain in Motion Research Group (PAIN), Department of Physiotherapy, Human Physiology and Anatomy (KIMA), Faculty of Physical Education & Physiotherapy, Vrije Universiteit Brussel, Brussels, Belgium
Department of Physical Medicine and Physiotherapy, University Hospital Brussels, Brussels, Belgium
Search for more papers by this authorFunding information
Jente Bontinck and Dorine Lenoir are funded for this research by The Special Research Fund of Ghent University (respectively, BOF 01962334; BOF19/DOC/170) and Iris Coppieters is funded by the Research Foundation Flanders (FWO), Belgium (Grant nr. G007217N and G001419N).
Abstract
Background and Objective
After whiplash injury, some patients develop chronic whiplash-associated disorders. The exact pathophysiology of this chronification is still unclear and more knowledge is needed regarding the different post-injury phases. Therefore, studies were searched that examined temporal changes in pain processing, measured by Quantitative Sensory Testing (QST).
Databases and Data Treatment
This systematic review searched three electronic databases (Medline, Web of Science and Embase) for articles meeting the eligibility requirements. Risk of bias was assessed according to a modified Newcastle–Ottawa Scale.
Results
The 12 included studies presented moderate to good methodological quality. These studies showed altered pain processing within the first month after injury and normalization within 3 months in 59%–78% of the patients. After 3 months, recovery stagnates during the following years. Thermal and widespread mechanical hyperalgesia occur already in the acute phase, but only in eventually non-recovered patients.
Conclusions
Differences in pain processing between recovering and non-recovering patients can be observed already in the acute phase. Early screening for signs of altered pain processing can identify patients with high risk for chronification. These insights in temporal changes show the importance of rehabilitation in the acute phase. Future research should target to develop a standardized (bed-site) QST protocol and collect normative data which could, in relation with self-reported pain parameters, allow clinicians to identify the risk for chronification.
Significance
Altered pain processing is present soon after whiplash injury, but usually recovers within 3 months. Non-recovering patients show little to no improvements in the following years. Differences between recovering and non-recovering patients can be observed by Quantitative Sensory Testing already in the acute phase. Therefore, it is considered a feasible and effective tool that can contribute to the identification of high-risk patients and the prevention of chronification.
CONFLICT OF INTEREST
The authors declare no conflicts of interest.
Supporting Information
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ejp1858-sup-0001-TableS1.docxWord 2007 document , 20.5 KB | Table S1 |
ejp1858-sup-0002-TableS2.docxWord 2007 document , 23.7 KB | Table S2 |
ejp1858-sup-0003-FileS1.docxWord 2007 document , 23.9 KB | File S1 |
Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.
REFERENCES
- Al-Khazali, H. M., Ashina, H., Iljazi, A., Lipton, R. B., Ashina, M., Ashina, S., & Schytz, H. W. (2020). Neck pain and headache after whiplash injury: A systematic review and meta-analysis. Pain, 161, 880–888. https://doi.org/10.1097/j.pain.0000000000001805
- Andersen, T. E., Elklit, A., & Vase, L. (2011). The relationship between chronic whiplash-associated disorder and post-traumatic stress: Attachment-anxiety may be a vulnerability factor. European Journal of Psychotraumatology, 2, 5633. https://doi.org/10.3402/ejpt.v2i0.5633
- Arendt-Nielsen, L., & Graven-Nielsen, T. (2011). Translational musculoskeletal pain research. Best Practice & Research Clinical Rheumatology, 25, 209–226. https://doi.org/10.1016/j.berh.2010.01.013
- Banic, B., Petersen-Felix, S., Andersen, O. K., Radanov, B. P., Villiger, P. M., Arendt-Nielsen, L., & Curatolo, M. (2004). Evidence for spinal cord hypersensitivity in chronic pain after whiplash injury and in fibromyalgia. Pain, 107, 7–15. https://doi.org/10.1016/j.pain.2003.05.001
- Baron, R., Maier, C., Attal, N., Binder, A., Bouhassira, D., Cruccu, G., Finnerup, N. B., Haanpää, M., Hansson, P., Hüllemann, P., Jensen, T. S., Freynhagen, R., Kennedy, J. D., Magerl, W., Mainka, T., Reimer, M., Rice, A. S. C., Segerdahl, M., Serra, J., … Treede, R. D. (2017). Peripheral neuropathic pain: A mechanism-related organizing principle based on sensory profiles. Pain, 158, 261–272. https://doi.org/10.1097/j.pain.0000000000000753
- Boivie, J. (2003). Central pain and the role of quantitative sensory testing (QST) in research and diagnosis. European Journal of Pain, 7, 339–343. https://doi.org/10.1016/S1090-3801(03)00046-6
- Burgers, J. S., & van Everdingen, J. J. (2004). Evidence-based guideline development in the Netherlands: The EBRO platform. Nederlands Tijdschrift Voor Geneeskunde, 148, 2057–2059.
- Cathcart, S., & Pritchard, D. (2006). Reliability of pain threshold measurement in young adults. The Journal of Headache and Pain, 7, 21–26. https://doi.org/10.1007/s10194-006-0265-7
- Chien, A., Eliav, E., & Sterling, M. (2008). Hypoesthesia occurs in acute whiplash irrespective of pain and disability levels and the presence of sensory hypersensitivity. Clinical Journal of Pain, 24, 759–766. https://doi.org/10.1097/AJP.0b013e3181773b95
- Chien, A., Eliav, E., & Sterling, M. (2009). Hypoaesthesia occurs with sensory hypersensitivity in chronic whiplash–further evidence of a neuropathic condition. Manual Therapy, 14, 138–146. https://doi.org/10.1016/j.math.2007.12.004
- Chien, A., Eliav, E., & Sterling, M. (2010). The development of sensory hypoesthesia after whiplash injury. The Clinical Journal of Pain, 26, 722–728. https://doi.org/10.1097/AJP.0b013e3181f096ac
- Cote, P., Cassidy, J. D., Carroll, L., Frank, J. W., & Bombardier, C. (2001). A systematic review of the prognosis of acute whiplash and a new conceptual framework to synthesize the literature. Spine, 2001(26), E445–458. https://doi.org/10.1097/00007632-200110010-00020
10.1097/00007632?200110010?00020 Google Scholar
- Crettaz, B., Marziniak, M., Willeke, P., Young, P., Hellhammer, D., Stumpf, A., & Burgmer, M. (2013). Stress-induced allodynia–Evidence of increased pain sensitivity in healthy humans and patients with chronic pain after experimentally induced psychosocial stress. PLoS One, 8, e69460. https://doi.org/10.1371/journal.pone.0069460
- Curatolo, M. (2011). Diagnosis of altered central pain processing. Spine, 36, S200–S204. https://doi.org/10.1097/BRS.0b013e3182387f3d
- Curatolo, M., Arendt-Nielsen, L., & Petersen-Felix, S. (2004). Evidence, mechanisms, and clinical implications of central hypersensitivity in chronic pain after whiplash injury. Clinical Journal of Pain, 20, 469–476. https://doi.org/10.1097/00002508-200411000-00013
- Daenen, L., Nijs, J., Cras, P., Wouters, K., & Roussel, N. (2014). Changes in pain modulation occur soon after Whiplash trauma but are not related to altered perception of distorted visual feedback. Pain Practice, 14, 588–598. https://doi.org/10.1111/papr.12113
- De Kooning, M., Daenen, L., Roussel, N., Cras, P., Buyl, R., Ickmans, K., Struyf, F., & Nijs, J. (2015). Endogenous pain inhibition is unrelated to autonomic responses in acute whiplash-associated disorders. Journal of Rehabilitation Research and Development, 52, 431–440. https://doi.org/10.1682/JRRD.2014.06.0154
- Dunne, R. L., Kenardy, J., & Sterling, M. (2012). A randomized controlled trial of cognitive-behavioral therapy for the treatment of PTSD in the context of chronic whiplash. Clinical Journal of Pain, 28, 755–765. https://doi.org/10.1097/AJP.0b013e318243e16b
- Farrell, S. F., de Zoete, R. M. J., Cabot, P. J., & Sterling, M. (2020). Systemic inflammatory markers in neck pain: A systematic review with meta-analysis. European Journal of Pain, 24, 1666–1686. https://doi.org/10.1002/ejp.1630
- Fernandez-de-las-Penas, C., Galan-del-Rio, F., Ortega-Santiago, R., Jimenez-Garcia, R., Arendt-Nielsen, L., & Svensson, P. (2010). Bilateral thermal hyperalgesia in trigeminal and extra-trigeminal regions in patients with myofascial temporomandibular disorders. Experimental Brain Research, 202, 171–179. https://doi.org/10.1007/s00221-009-2121-x
- Finnerup, N. B., Haroutounian, S., Kamerman, P., Baron, R., Bennett, D. L. H., Bouhassira, D., Cruccu, G., Freeman, R., Hansson, P., Nurmikko, T., Raja, S. N., Rice, A. S. C., Serra, J., Smith, B. H., Treede, R.-D., & Jensen, T. S. (2016). Neuropathic pain: An updated grading system for research and clinical practice. Pain, 157. https://doi.org/10.1097/j.pain.0000000000000492
10.1097/j.pain.0000000000000492 Google Scholar
- Gaab, J., Baumann, S., Budnoik, A., Gmünder, H., Hottinger, N., & Ehlert, U. (2005). Reduced reactivity and enhanced negative feedback sensitivity of the hypothalamus-pituitary-adrenal axis in chronic whiplash-associated disorder. Pain, 119, 219–224. https://doi.org/10.1016/j.pain.2005.10.001
- Geber, C., Magerl, W., Fondel, R., Fechir, M., Rolke, R., Vogt, T., Treede, R. D., & Birklein, F. (2008). Numbness in clinical and experimental pain–A cross-sectional study exploring the mechanisms of reduced tactile function. Pain, 139, 73–81. https://doi.org/10.1016/j.pain.2008.03.006
- Georgopoulos, V., Akin-Akinyosoye, K., Zhang, W., McWilliams, D. F., Hendrick, P., & Walsh, D. A. (2019). Quantitative sensory testing and predicting outcomes for musculoskeletal pain, disability, and negative affect: A systematic review and meta-analysis. Pain, 160, 1920–1932. https://doi.org/10.1097/j.pain.0000000000001590
- Goldsmith, R., Wright, C., Bell, S. F., & Rushton, A. (2012). Cold hyperalgesia as a prognostic factor in whiplash associated disorders: A systematic review. Manual Therapy, 17, 402–410. https://doi.org/10.1016/j.math.2012.02.014
- Harte, S. E., Harris, R. E., & Clauw, D. J. (2018). The neurobiology of central sensitization. Journal of Applied Biobehavioral Research, 23, e12137. https://doi.org/10.1111/jabr.12137
- Hartling, L., Brison, R. J., Ardern, C., & Pickett, W. (2001). Prognostic value of the Quebec classification of Whiplash-associated disorders. Spine, 2001(26), 36–41. https://doi.org/10.1097/00007632-200101010-00008
- Heldestad, V., Linder, J., Sellersjö, L., & Nordh, E. (2010). Reproducibility and influence of test modality order on thermal perception and thermal pain thresholds in quantitative sensory testing. Clinical Neurophysiology, 121, 1878–1885. https://doi.org/10.1016/j.clinph.2010.03.055
- Herren-Gerber, R., Weiss, S., Arendt-Nielsen, L., Petersen-Felix, S., Di Stefano, G., Radanov, B. P., & Curatolo, M. (2004). Modulation of central hypersensitivity by nociceptive input in chronic pain after whiplash injury. Pain Medicine, 5, 366–376. https://doi.org/10.1111/j.1526-4637.2004.04055.x.
- Hübscher, M., Moloney, N., Rebbeck, T., Traeger, A., & Refshauge, K. M. (2014). Contributions of mood, pain catastrophizing, and cold hyperalgesia in acute and chronic low back pain: A comparison with pain-free controls. Clinical Journal of Pain, 30, 886–893. https://doi.org/10.1097/AJP.0000000000000045
- Järvinen, T. A., Järvinen, M., & Kalimo, H. (2014). Regeneration of injured skeletal muscle after the injury. Muscle Ligaments and Tendons Journal, 3, 337–345. https://doi.org/10.32098/mltj.04.2013.16
- Ji, R.-R., Nackley, A., Huh, Y., Terrando, N., & Maixner, W. (2018). Neuroinflammation and central sensitization in chronic and widespread pain. Anesthesiology, 129, 343–366. https://doi.org/10.1097/ALN.0000000000002130
- Jorgensen, R., Ris, I., Falla, D., & Juul-Kristensen, B. (2014). Reliability, construct and discriminative validity of clinical testing in subjects with and without chronic neck pain. BMC Musculoskeletal Disorders, 15. https://doi.org/10.1186/1471-2474-15-408
- Kaale, B. R., Krakenes, J., Albrektsen, G., & Wester, K. (2005). Whiplash-associated disorders impairment rating: Neck disability index score according to severity of MRI findings of ligaments and membranes in the upper cervical spine. Journal of Neurotrauma, 22, 466–475. https://doi.org/10.1089/neu.2005.22.466
- Kamper, S. J., Maher, C. G., Hush, J. M., Pedler, A., & Sterling, M. (2011). Relationship between pressure pain thresholds and pain ratings in patients with whiplash-associated disorders. Clinical Journal of Pain, 27, 495–501. https://doi.org/10.1097/AJP.0b013e31820e1185
- Kamper, S. J., Rebbeck, T. J., Maher, C. G., McAuley, J. H., & Sterling, M. (2008). Course and prognostic factors of whiplash: A systematic review and meta-analysis. Pain, 138, 617–629. https://doi.org/10.1016/j.pain.2008.02.019
- Kasch, H., Hjorth, T., Svensson, P., Nyhuus, L., & Jensen, T. S. (2002). Temporomandibular disorders after whiplash injury: A controlled, prospective study. Journal of Orofacial Pain, 16, 118–128.
- Kasch, H., Qerama, E., Bach, F. W., & Jensen, T. S. (2005). Reduced cold pressor pain tolerance in non-recovered whiplash patients: A 1-year prospective study. European Journal of Pain, 9, 561–569. https://doi.org/10.1016/j.ejpain.2004.11.011
- Kasch, H., Qerama, E., Kongsted, A., Bach, F. W., Bendix, T., & Jensen, T. S. (2008). Deep muscle pain, tender points and recovery in acute whiplash patients: A 1-year follow-up study. Pain, 140, 65–73. https://doi.org/10.1016/j.pain.2008.07.008
- Kasch, H., Stengaard-Pedersen, K., Arendt-Nielsen, L., & Jensen, T. S. (2001). Pain thresholds and tenderness in neck and head following acute whiplash injury: A prospective study. Cephalalgia, 21, 189–197. https://doi.org/10.1046/j.1468-2982.2001.00179.x
- Kosek, E., Clauw, D., Nijs, J., Baron, R., Gilron, I., Harris, R. E., Mico, J. A., Rice, A. S., & Sterling, M. (2021). Chronic nociplastic pain affecting the musculoskeletal system: Clinical criteria and grading system. Pain. https://doi.org/10.1097/j.pain.0000000000002324
10.1097/j.pain.0000000000002324 Google Scholar
- Kosek, E., Cohen, M., Baron, R., Gebhart, G. F., Mico, J.-A., Rice, A. S. C., Rief, W., & Sluka, A. K. (2016). Do we need a third mechanistic descriptor for chronic pain states? Pain, 157(7), 1382–1386. https://doi.org/10.1097/j.pain.0000000000000507
- Koulouris, A. E., Edwards, R. R., Dorado, K., Schreiber, K. L., Lazaridou, A., Rajan, S., White, J., Garcia, J., Gibbons, C., & Freeman, R. (2020). Reliability and validity of the Boston bedside quantitative sensory testing battery for neuropathic pain. Pain Medicine, 21, 2336–2347. https://doi.org/10.1093/pm/pnaa192
- Lakens, D. (2013). Calculating and reporting effect sizes to facilitate cumulative science: A practical primer for t-tests and ANOVAs. Frontiers in Psychology, 4, 863. https://doi.org/10.3389/fpsyg.2013.00863.
- Latremoliere, A., & Woolf, C. J. (2009). Central sensitization: A generator of pain hypersensitivity by central neural plasticity. The Journal of Pain, 10, 895–926. https://doi.org/10.1016/j.jpain.2009.06.012.
- Lim, E. C., Sterling, M., Stone, A., & Vicenzino, B. (2011). Central hyperexcitability as measured with nociceptive flexor reflex threshold in chronic musculoskeletal pain: A systematic review. Pain, 152, 1811–1820. https://doi.org/10.1016/j.pain.2011.03.033.
- Lluch, E., Torres, R., Nijs, J., & Van Oosterwijck, J. (2014). Evidence for central sensitization in patients with osteoarthritis pain: A systematic literature review. European Journal of (United Kingdom), 18, 1367–1375. https://doi.org/10.1002/j.1532-2149.2014.499.x.
- Lord, S. M., Barnsley, L., Wallis, B. J., & Bogduk, N. (1996). Chronic cervical zygapophysial joint pain after whiplash. A placebo-controlled prevalence study. Spine, 21, 1737–1744. discussion 1744–1735. https://doi.org/10.1097/00007632-199608010-00005.
- Magerl, W., & Treede, R. D. (2004). Secondary tactile hypoesthesia: A novel type of pain-induced somatosensory plasticity in human subjects. Neuroscience Letters, 361, 136–139. https://doi.org/10.1016/j.neulet.2003.12.001.
- Marcuzzi, A., Dean, C. M., Wrigley, P. J., & Hush, J. M. (2015). Early changes in somatosensory function in spinal pain: A systematic review and meta-analysis. Pain, 156, 203–214. https://doi.org/10.1097/01.j.pain.0000460300.10583.f6.
- McLean, S. A. (1976). The potential contribution of stress systems to the transition to chronic whiplash-associated disorders. Spine, 36, S226–232. https://doi.org/10.1097/BRS.0b013e3182387fb4.
- Meeus, M., Vervisch, S., De Clerck, L. S., Moorkens, G., Hans, G., & Nijs, J. (2012). Central sensitization in patients with rheumatoid arthritis: A systematic literature review. Seminars in Arthritis and Rheumatism, 41, 556–567. https://doi.org/10.1016/j.semarthrit.2011.08.001.
- Merskey, H. (1994). Part III pain terms, a current list with definitions and notes on usage. Classification of Chronic pain-descriptions of Chronic Pain Syndromes and Definitions of Pain Terms, pp. 207–214.
- Moher, D., Liberati, A., Tetzlaff, J., & Altman, D. G. (2010). Preferred reporting items for systematic reviews and meta-analyses: The PRISMA statement. International Journal of Surgery, 8, 336–341. https://doi.org/10.1016/j.ijsu.2010.02.007.
- Moriwaki, K., & Yuge, O. (1999). Topographical features of cutaneous tactile hypoesthetic and hyperesthetic abnormalities in chronic pain. Pain, 81, 1–6. https://doi.org/10.1016/S0304-3959(98)00257-7.
- Moss, P., Knight, E., & Wright, A. (2016). Subjects with knee osteoarthritis exhibit widespread hyperalgesia to pressure and cold. PLoS One, 11, e0147526. https://doi.org/10.1371/journal.pone.0147526
- Nebel, K., Stude, P., Ludecke, C., Wiese, H., Diener, H. C., & Keidel, M. (2005). Prospective PC-interactive pressure algesimetry of post-traumatic neck pain after whiplash injury. Cephalalgia, 25, 205–213. https://doi.org/10.1111/j.1468-2982.2004.00842.x.
- Neddermeyer, T. J., Flühr, K., & Lötsch, J. (2008). Principle components analysis of pain thresholds to thermal, electrical, and mechanical stimuli suggests a predominant common source of variance. Pain, 138, 286–291. https://doi.org/10.1016/j.pain.2007.12.015.
- Nijs, J., Goubert, D., & Ickmans, K. (2016). Recognition and treatment of central sensitization in chronic pain patients: Not limited to specialized care. Journal of Orthopaedic & Sports Physical Therapy, 46, 1024–1028. https://doi.org/10.2519/jospt.2016.0612.
- Olango, W. M., & Finn, D. P. (2014). Neurobiology of stress-induced hyperalgesia. Current Topics in Behavioral Neurosciences, 20, 251–280.
- Olivegren, H., Jerkvall, N., Hagstrom, Y., & Carlsson, J. (1999). The long-term prognosis of whiplash-associated disorders (WAD). European Spine Journal, 8, 366–370. https://doi.org/10.1007/s005860050189.
- Price, D. D., Hu, J. W., Dubner, R., & Gracely, R. H. (1977). Peripheral suppression of first pain and central summation of second pain evoked by noxious heat pulses. Pain, 3, 57–68. https://doi.org/10.1016/0304-3959(77)90035-5.
- Prushansky, T., Handelzalts, S., & Pevzner, E. (2007). Reproducibility of pressure pain threshold and visual analog scale findings in chronic whiplash patients. Clinical Journal of Pain, 23, 339–345. https://doi.org/10.1097/AJP.0b013e31803157ff.
- Reimer, M., Forstenpointner, J., Hartmann, A., Otto, J. C., Vollert, J., Gierthmühlen, J., Klein, T., Hüllemann, P., & Baron, R. Sensory bedside testing: a simple stratification approach for sensory phenotyping. Pain Reports, 5(3), e820. https://doi.org/10.1097/PR9.0000000000000820.
- Rolke, R., Magerl, W., Campbell, K. A., Schalber, C., Caspari, S., Birklein, F., & Treede, R. D. (2006). Quantitative sensory testing: A comprehensive protocol for clinical trials. European Journal of Pain, 10, 77–88. https://doi.org/10.1016/j.ejpain.2005.02.003.
- Ronnen, H. R., de Korte, P. J., Brink, P. R., van der Bijl, H. J., Tonino, A. J., & Franke, C. L. (1996). Acute whiplash injury: Is there a role for MR imaging? A prospective study of 100 patients. Radiology, 201, 93–96. https://doi.org/10.1148/radiology.201.1.8816527.
- Sarrami, P., Armstrong, E., Naylor, J. M., & Harris, I. A. (2017). Factors predicting outcome in whiplash injury: A systematic meta-review of prognostic factors. Journal of Orthopaedics and Traumatology, 18, 9–16. https://doi.org/10.1007/s10195-016-0431-x
- Schneider, G. M., Smith, A. D., Hooper, A., Stratford, P., Schneider, K. J., Westaway, M. D., Frizzell, B., & Olson, L. (2010). Minimizing the source of nociception and its concurrent effect on sensory hypersensitivity: An exploratory study in chronic whiplash patients. BMC Musculoskeletal Disorders, 11, 29. https://doi.org/10.1186/1471-2474-11-29
- Scholten-Peeters, G. G. M., Verhagen, A. P., Bekkering, G. E., Van Der Windt, D. A. W. M., Barnsley, L., Oostendorp, R. A. B., & Hendriks, E. J. M. (2003). Prognostic factors of whiplash-associated disorders: A systematic review of prospective cohort studies. Pain, 104, 303–322. https://doi.org/10.1016/S0304-3959(03)00050-2
- Serrano-Munoz, D., Galan-Arriero, I., Avila-Martin, G., Gomez-Soriano, J., Florensa, J., Garcia-Peris, A., Romero-Munoz, L. M., Barriga-Martin, A., & Taylor, J. (2019). Deficient inhibitory endogenous pain modulation correlates with periaqueductal gray matter metabolites during chronic whiplash injury. Clinical Journal of Pain, 35, 668–677. https://doi.org/10.1097/AJP.0000000000000722
- Stammler, T., De Col, R., Seifert, F., & Maihöfner, C. (2008). Functional imaging of sensory decline and gain induced by differential noxious stimulation. NeuroImage, 42, 1151–1163. https://doi.org/10.1016/j.neuroimage.2008.05.048
- Sterling, M. (2010). Differential development of sensory hypersensitivity and a measure of spinal cord hyperexcitability following whiplash injury. Pain, 150, 501–506. https://doi.org/10.1016/j.pain.2010.06.003
- Sterling, M., Hendrikz, J., & Kenardy, J. (2010). Compensation claim lodgement and health outcome developmental trajectories following whiplash injury: a prospective study. Pain, 150, 22–28. https://doi.org/10.1016/j.pain.2010.02.013
- Sterling, M., Jull, G., & Kenardy, J. (2006). Physical and psychological factors maintain long-term predictive capacity post-whiplash injury. Pain, 122, 102–108. https://doi.org/10.1016/j.pain.2006.01.014
- Sterling, M., Jull, G., Vicenzino, B., & Kenardy, J. (2004). Characterization of acute whiplash-associated disorders. Spine, 2004(29), 182–188. https://doi.org/10.1097/01.BRS.0000105535.12598.AE
- Sterling, M., Jull, G., Vicenzino, B., & Kenardy, J. (2003). Sensory hypersensitivity occurs soon after whiplash injury and is associated with poor recovery. Pain, 104, 509–517. https://doi.org/10.1016/S0304-3959(03)00078-2
- Sterling, M., Jull, G., Vicenzino, B., Kenardy, J., & Darnell, R. (2005). Physical and psychological factors predict outcome following whiplash injury. Pain, 114, 141–148. https://doi.org/10.1016/j.pain.2004.12.005
- Sterling, M., & Pedler, A. (2009). A neuropathic pain component is common in acute whiplash and associated with a more complex clinical presentation. Manual Therapy, 14, 173–179. https://doi.org/10.1016/j.math.2008.01.009
- Sterling, M., Smeets, R., Keijzers, G., Warren, J., & Kenardy, J. (2019). Physiotherapist-delivered stress inoculation training integrated with exercise versus physiotherapy exercise alone for acute whiplash-associated disorder (StressModex): A randomised controlled trial of a combined psychological/physical intervention. British Journal of Sports Medicine, 53, 1240–1247. https://doi.org/10.1136/bjsports-2018-100139
- Sterling, M., Treleaven, J., & Jull, G. (2002). Responses to a clinical test of mechanical provocation of nerve tissue in whiplash associated disorder. Manual Therapy, 7, 89–94. https://doi.org/10.1054/math.2002.0443
- Stone, A. M., Vicenzino, B., Lim, E. C., & Sterling, M. (2013). Measures of central hyperexcitability in chronic whiplash associated disorder–A systematic review and meta-analysis. Manual Therapy, 18, 111–117. https://doi.org/10.1016/j.math.2012.07.009
- Uddin, Z., & MacDermid, J. C. (2016). Quantitative sensory testing in chronic musculoskeletal pain. Pain Medicine, 17, 1694–1703. https://doi.org/10.1093/pm/pnv105
- Van Oosterwijck, J., Nijs, J., Meeus, M., & Paul, L. (2013). Evidence for central sensitization in chronic whiplash: A systematic literature review. European Journal of Pain, 17, 299–312. https://doi.org/10.1002/j.1532-2149.2012.00193.x
- Vollert, J., Mainka, T., Baron, R., Enax-Krumova, E. K., Hüllemann, P., Maier, C., Pfau, D. B., Tölle, T., & Treede, R. D. (2015). Quality assurance for Quantitative Sensory Testing laboratories: Development and validation of an automated evaluation tool for the analysis of declared healthy samples. Pain, 156, 2423–2430. https://doi.org/10.1097/j.pain.0000000000000300
- Walter, S. D., & Yao, X. (2007). Effect sizes can be calculated for studies reporting ranges for outcome variables in systematic reviews. Journal of Clinical Epidemiology, 60, 849–852. https://doi.org/10.1016/j.jclinepi.2006.11.003
- Walton, D. M., & Elliott, J. M. (2017). An integrated model of chronic whiplash-associated disorder. Journal of Orthopaedic and Sports Physical Therapy, 47, 462–471. https://doi.org/10.2519/jospt.2017.7455
- Walton, D. M., Macdermid, J. C., Giorgianni, A. A., Mascarenhas, J. C., West, S. C., & Zammit, C. A. (2013). Risk factors for persistent problems following acute whiplash injury: Update of a systematic review and meta-analysis. Journal of Orthopaedic and Sports Physical Therapy, 43, 31–43. https://doi.org/10.2519/jospt.2013.4507
- Wasner, G. L., & Brock, J. A. (2008). Determinants of thermal pain thresholds in normal subjects. Clinical Neurophysiology, 119, 2389–2395. https://doi.org/10.1016/j.clinph.2008.07.223
- Woolf, C. J. (2011). Central sensitization: Implications for the diagnosis and treatment of pain. Pain, 152, S2–15. https://doi.org/10.1016/j.pain.2010.09.030
- Yarnitsky, D., Arendt-Nielsen, L., Bouhassira, D., Edwards, R. R., Fillingim, R. B., Granot, M., Hansson, P., Lautenbacher, S., Marchand, S., & Wilder-Smith, O. (2010). Recommendations on terminology and practice of psychophysical DNIC testing. European Journal of Pain, 14, 339. https://doi.org/10.1016/j.ejpain.2010.02.004
- Zorina-Lichtenwalter, K., Meloto, C. B., Khoury, S., & Diatchenko, L. (2016). Genetic predictors of human chronic pain conditions. Neuroscience, 338, 36–62. https://doi.org/10.1016/j.neuroscience.2016.04.041