Imaging-guided lumbar facet injections: is there a difference in outcomes between low back pain patients who remember to return a postal questionnaire and those who do not?
Tóm tắt
To determine whether data obtained from patients returning postal questionnaires accurately reflect how patients receiving imaging-guided lumbar facet injections respond. Seventy-eight patients receiving lumbar facet joint injections who returned an outcomes questionnaire (responders) were age and gender matched with 78 patients who did not return the postal questionnaire (non-responders) after facet joint injections. Baseline numerical rating scale (NRS) pain data were collected. NRS and Patients’ Global Impression of Change (PGIC) data were collected 1 month after injection by postal questionnaire or telephone interview. Differences in NRS scores were calculated using the unpaired t-test. One level injection patients were compared to patients having ≥2 levels injected using the paired and unpaired t-test. The proportion of patients reporting significant improvement in each group was calculated. NRS scores were significantly improved compared to baseline (p = 0.0001). Thirty-eight percent of responders were significantly improved compared to 50 % of non-responders. Patients having ≥2 levels injected reported significantly higher baseline NRS scores, but by 1 month there was no difference in NRS scores between groups. Patients returning postal questionnaires report a less favourable outcome. Telephone interview patients having injections at more than one level have better outcomes. • Patients returning postal questionnaires report worse outcomes after facet injection. • Method of data collection should be considered when reporting treatment outcomes. • Patients receiving facet injections at more than one level report greater levels of pain reduction.
Tài liệu tham khảo
Van Kleef M, Vanelderen P, Cohen SP, Lataster A, Van Zundert J, Mekhail N (2010) Pain originating from the lumbar facet joints. Pain Pract 10:459–469
Manchikanti L, Pampati V, Fellows B, Bakhit CE (1999) Prevalence of lumbar facet joint pain in chronic low back pain. Pain Physician 2:59–64
Berven S, Tay BB, Colman W, Hu SS (2002) The lumbar zygapophyseal (facet) joints: a role in the pathogenesis of spinal pain syndromes and degenerative spondylolisthesis. Semin Neurol 22:187–196
Merskey H, Bogduk N (1994) Classification of chronic pain: descriptions of chronic pain syndromes and definitions of pain terms, 2nd edn. IASP Press, Seattle
Varlotta GB, Lefkowitz TR, Schweitzer M, Errico TJ, Spivak J, Bendo JA, Rybak L (2011) The lumbar facet joint: a review of current knowledge: part II: diagnosis and management. Skeletal Radiol 40:149–157
Chaturvedi A, Chaturvedi S, Sivasankar R (2009) Image-guided lumbar facet joint infiltration in nonradicular low back pain. Indian J Radiol Imaging 19:29–34
Boswell MV, Colson JD, Sehgal N, Dunbar EE, Epter R (2007) A systemic review of therapeutical facet joint intervention in chronic spinal pain. Pain Physician 10:229–253
Boswell MV, Trescot AM, Datta S, Schultz DM, Hansen HC, Abdi S et al (2007) Interventional techniques: evidence-base practice guidelines in the management of chronic spinal pain. Pain Physician 1:7–111
Peterson C, Hodler J (2010) Evidence-based radiology (part 1): is there a sufficient research to support the use of therapeutic injections for the spine and sacroiliac joints? Skeletal Radiol 39:5–9
Datta S, Lee M, Falco FJ, Bryde DA, Hayek SM (2009) Systematic assessment of diagnostic accuracy and therapeutic utility of lumbar facet joint interventions. Pain Physician 12:437–460
Karnezis IA (2008) Minimal invasive therapeutic interventional procedures in the spine: an evidence-based review. Surg Technol Int 17:259–268
Bogduk N (2005) A narrative review of intra-articular corticosteroid injections for low back pain. Pain Med 6:287–296
Edwards P, Roberts I, Sandercock P, Frost Ch (2004) Follow-up by mail in clinical trials: does questionnaire length matter? Control Clin Trials 25:31–52
Johansen B, Wedderkopp N (2010) Comparison between data obtained through real-time data capture by SMS and a retrospective telephone interview. Chiropr Osteopat. doi:10.1186/1746-1340-18-10
Bolton JE, Humphreys BK, van Hedel HJ (2010) Validity of weekly recall ratings of average pain Intensity in neck pain patients. J Manip Physiol Ther 33:612–617
Newell D, Bolton JE (2010) Responsiveness of the Bournemouth questionnaire in determining minimal clinically important change in subgroups of low back pain patients. Spine 35:1801–1806
Hicks GE, Morone N, Weiner DK (2009) Degenerative lumbar disc and facet disease in older adults. Spine 34:1301–1306
Borenstein DG, O'Mara JW, Boden SD, Lauerman WC, Jacobson A, Platenberg C et al (2001) The value of magnetic resonance imaging of the lumbar spine to predict low-back pain in asymptomatic subjects: a seven-year follow-up study. J Bone Joint Surg Am 83:1306–1311
Jensen MP, Mardekian J, Lakshminarayanan M, Boye ME (2008) Validity of 24-h recall ratings of pain severity: biasing effects of “peak” and “end” pain. Pain 137:422–427
Hays RD, Kim S, Spritzer KL, Kaplan RM et al (2009) Effects of mode and order of administration on generic health-related quality of life scores. Value Health 12:1035–1039
Hanmer J, Hays RD, Fryback DG (2007) Mode of administration is important in US national estimates of health-related quality of life. Med Care 45:1171–1179
Power JR, Mishra G, Young AF (2005) Differences in mail and telephone responses to self-rated health: use of multiple imputation in correcting for response bias. Aust N Z J Public Health 29:149–154