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dc.contributor.authorWain, Matthew Joel Thomas
dc.description.abstractPURPOSE: The purpose of this study was to assess the validity of pre-surgery PROMS completed retrospectively 6 and 24 months after hip arthroscopy compared with prospective completion. Validity was judged in relation to preoperative test-retest reliability. METHODS: Three separate groups of hip arthroscopy patients were recruited. In two retrospective groups, patients who had undergone a hip arthroscopy and had completed preoperative PROM questionnaires were contacted 6 or 24 months after surgery and asked to recall their preoperative state. In a third test-retest group, patients completed prospective PROMs twice prior to surgery, 2–8 weeks apart. PROMs included Non-Arthritic Hip Score (NAH), Hip Disability and Osteoarthritis Outcome score (HOOS), International Hip Outcome Tool (IHOT- 12), and Visual Analogue Scale (VAS) for Medical Care, Feeling and Pain. RESULTS: In the 6-month, 24-month and test-retest groups, patient sample sizes were 52, 40 and 61, respectively. Retrospective 6- and 24-month and test-retest PROMs demonstrated ‘moderate’ to ‘very large’ correlations (ICC=0.42–0.79), except for 6-month VAS-Medical- Care and VAS-Feeling (‘small’) and 24-month VAS-Feeling (‘trivial’). PROMs for the 24- month group reduced, from prospective to retrospective, for NAH-Total (MD -4.10 [-7.93–- 0.27; (95%CI)]; p=0.03), HOOS Symptoms (-8.21 [-13.44–-2.97]; p=0.003), HOOS-Daily- Living (-7.53 [-12.71–-2.36]; p=0.005), HOOS-Sports (-6.49 [-12.97–0.00]; p=0.05), and HOOS-Short-Form (-5.16 [-9.83–-0.49]; p=0.03). Similar non-significant reductions were observed for 6-month retrospective PROMs, except for VAS-Feeling which increased retrospectively (7.47 [0.13–14.81]; p=0.05). Three test-retest PROMs also showed statistically significant reduction, with worse outcomes approaching surgery: HOOS-Daily- Living (-.3.87 [-7.73–0.00]; p=0.05), HOOS-Short-Form (-4.49 [-8.41–-0.53]; p=0.03), and IHOT-12-Total (-4.91 [-8.7–-1.23]; p=0.01). CONCLUSION: Correlations for retrospective versus prospective PROM scores spanned a similar range to test-retest correlations. Therefore, PROM scores relating to pre-surgery condition, but completed 6 or 24 months after surgery, showed agreement with PROM scores completed before surgery which were consistent with the day-to-day variability expected before surgery. This consistency supports the use of retrospective PROMs completed up to 2 years after hip arthroscopy.en_NZ
dc.rightsAll rights reserveden_NZ
dc.subjectAuckland (N.Z.)en_NZ
dc.subjectNew Zealanden_NZ
dc.subjecthip arthroscopy patientsen_NZ
dc.subjecthip arthroscopyen_NZ
dc.subjectPatient Reported Outcome Measures (PROMs)en_NZ
dc.subjecthip surgeryen_NZ
dc.subjectosteopathic medicineen_NZ
dc.titleValidity of retrospective patient reported assessment of pre-surgical hip pain and disability following hip arthroscopyen_NZ
dc.typeMasters Thesisen_NZ
dc.rights.holderAuthoren_NZ of Osteopathyen_NZ Institute of Technologyen_NZ
dc.subject.marsden110499 Complementary and Alternative Medicine not elsewhere classifieden_NZ
dc.identifier.bibliographicCitationWain, M. J. T. (2021). Validity of retrospective patient reported assessment of pre-surgical hip pain and disability following hip arthroscopy. (Unpublished document submitted in partial fulfilment of the requirements for the degree of Master of Osteopathy). Unitec Institute of Technology, New Zealand. Retrieved from
dc.contributor.affiliationUnitec Institute of Technologyen_NZ
unitec.publication.placeNew Zealanden_NZ
unitec.advisor.principalBacon, Catherine
unitec.advisor.associatedFurness, James

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