Vitamin D and Functional Outcomes After Total Hip Arthroplasty (THA)
The Effect of Serum Vitamin D Level and the Short Term Functional Outcomes After Total Hip Arthroplasty
The investigators would like to evaluate the effect of serum 25-hydroxy vitamin D level on post-operative short-term functional outcomes after total hip arthroplasty (THA).
Hypothesis: Patients with low serum vitamin D level will have less within-patient improvement in pre- to 6 week, 1 year, 2 year and 5 year post THA WOMAC scores, SF-36 scores, and performance-based tests(get up and go test and 2 minute walking test) compared to patients who do not have a low vitamin D levels.
Also, Patients with low serum vitamin D level will have a higher rate of postoperative thigh pain or periprosthetic fracture.
Descripción general del estudio
Estado
Condiciones
Descripción detallada
Vitamin D is an important nutrient to maintain both skeletal and non-skeletal function. In this study, we have 4 specific aims:
The primary aim of this prospective observational study is to compare the pre- to 6 week, 1 year, 2 year and 5 year post-THA within-patient change in Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) scores between patients who have a low preoperative serum vitamin D level and patients who do not have a low serum vitamin D level. Low serum vitamin D will be defined as serum 25-hydroxy vitamin D level less than 32 ng/ml.
The secondary aim is to compare the pre- to 6 week, 1 year, 2 year and 5 year post-THA within-patient change in performance-based tests (get up and go test, 2 minute walking test) between patients who have a low preoperative serum vitamin D level and patients who do not have a low serum vitamin D level.
The third aim is to compare the pre- to 6 week, 1 year, 2 year and 5 year post-THA within-patient change in Short-form 36 health survey (SF-36) scores between patients who have a low preoperative serum vitamin D level and patients who do not have a low serum vitamin D level.
The fourth aim is to compare the rate of postoperative fracture or thigh pain between patients who have a low preoperative serum vitamin D level and patients who do not have a low serum vitamin D level.
Postoperative thigh pain is defined as pain at the anterolateral aspect of mid thigh which corresponds to the level of the prosthetic stem tip. Thigh pain is characterized by pain in the start-up phase, diminishes during movement and is absent at rest.
Tipo de estudio
Inscripción (Actual)
Contactos y Ubicaciones
Ubicaciones de estudio
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New York
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New york, New York, Estados Unidos, 10021
- Hospital for Special Surgery
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Criterios de participación
Criterio de elegibilidad
Edades elegibles para estudiar
Acepta Voluntarios Saludables
Géneros elegibles para el estudio
Método de muestreo
Población de estudio
Descripción
Inclusion Criteria:
- Patients between the ages of 40 and 100 years old, and are scheduled for primary total hip arthroplasty with two surgeons (Drs. Sculco and Cornell) at Hospital for Special Surgery.
- Patients who have a serum 25-OH vitamin D drawn as part of their preoperative work-up.
Exclusion Criteria:
- Bilateral one-stage total hip replacements
- Patients who required a complex surgical procedure including extensive bone grafting, osteotomy, extensive soft tissue release, or a need of adjunctive internal fixation with cables, wires or plate
- Those with serious medical co-morbidities that need adjusted rehabilitation protocol due to their medical problems
- Those who require immediate postoperative revision due to dislocation, infection or component malalignment
Plan de estudios
¿Cómo está diseñado el estudio?
Detalles de diseño
Cohortes e Intervenciones
Grupo / Cohorte |
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Vitamin D deficiency
Patients with low serum vitamin D (25-hydroxy vitamin D < 32 ng/ml)
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Control group
Patients with normal serum vitamin D level (serum 25-hydroxy vitamin D > 32 ng/ml)
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¿Qué mide el estudio?
Medidas de resultado primarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
|---|---|---|
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The difference in the within-patient change in WOMAC scores between groups.
Periodo de tiempo: preoperatively, 6 week, 1 year, 2 year and 5 year post-THA
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The primary outcome will be the difference in the within-patient change in pre- to 6 week, 1 year, 2 year and 5 year post-THA WOMAC scores between groups. A clinically important difference between groups will be considered as 5 points change in the functional component of WOMAC. WOMAC is obtained as part of the HOOS questionnaire which is routinely used in all patients that are scheduled for total joint replacements at Hospital for Special Surgery. We will obtain this score at both pre-operative screening and 6 week, 1 year, 2 year and 5 year after the surgery. |
preoperatively, 6 week, 1 year, 2 year and 5 year post-THA
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Medidas de resultado secundarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
|---|---|---|
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The difference in the within-patient change of the performance-based tests between groups.
Periodo de tiempo: preoperatively, 6 weeks, 1 year, 2 years, and 5 years post THA
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Secondary outcome will be the difference in the within-patient change of the performance-based tests (get up and go test and 2 minute walking test) between pre- and 6 week, 1 year, 2 year and 5 year post-THA.
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preoperatively, 6 weeks, 1 year, 2 years, and 5 years post THA
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The difference in the within-patient change in SF-36 scores between groups
Periodo de tiempo: preoperatively, 6 weeks, 1 year, 2 year, and 5 years postoperatively
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Tertiary outcome will be the difference in the within-patient change in pre- to 6 week, 1 year, 2 year and 5 year post-THA SF-36 scores between groups Preoperative SF-36 is also included as part of the HOOS questionnaire.
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preoperatively, 6 weeks, 1 year, 2 year, and 5 years postoperatively
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Colaboradores e Investigadores
Patrocinador
Investigadores
- Investigador principal: Joseph M Lane, MD, Hospital for Special Surgery, New York
- Director de estudio: Aasis Unnanuntana, MD, Hospital for speicial surgery
Publicaciones y enlaces útiles
Publicaciones Generales
- Holick MF. Vitamin D deficiency. N Engl J Med. 2007 Jul 19;357(3):266-81. doi: 10.1056/NEJMra070553. No abstract available.
- Janssen HC, Samson MM, Verhaar HJ. Vitamin D deficiency, muscle function, and falls in elderly people. Am J Clin Nutr. 2002 Apr;75(4):611-5. doi: 10.1093/ajcn/75.4.611.
- Bischoff-Ferrari HA, Dietrich T, Orav EJ, Dawson-Hughes B. Positive association between 25-hydroxy vitamin D levels and bone mineral density: a population-based study of younger and older adults. Am J Med. 2004 May 1;116(9):634-9. doi: 10.1016/j.amjmed.2003.12.029. No abstract available.
- Stein MS, Wark JD, Scherer SC, Walton SL, Chick P, Di Carlantonio M, Zajac JD, Flicker L. Falls relate to vitamin D and parathyroid hormone in an Australian nursing home and hostel. J Am Geriatr Soc. 1999 Oct;47(10):1195-201. doi: 10.1111/j.1532-5415.1999.tb05199.x.
- Birge SJ. Can falls and hip fracture be prevented in frail older adults? J Am Geriatr Soc. 1999 Oct;47(10):1265-6. doi: 10.1111/j.1532-5415.1999.tb05212.x. No abstract available.
- Bischoff HA, Stahelin HB, Urscheler N, Ehrsam R, Vonthein R, Perrig-Chiello P, Tyndall A, Theiler R. Muscle strength in the elderly: its relation to vitamin D metabolites. Arch Phys Med Rehabil. 1999 Jan;80(1):54-8. doi: 10.1016/s0003-9993(99)90307-6.
- Mowe M, Haug E, Bohmer T. Low serum calcidiol concentration in older adults with reduced muscular function. J Am Geriatr Soc. 1999 Feb;47(2):220-6. doi: 10.1111/j.1532-5415.1999.tb04581.x.
- Gloth FM 3rd, Smith CE, Hollis BW, Tobin JD. Functional improvement with vitamin D replenishment in a cohort of frail, vitamin D-deficient older people. J Am Geriatr Soc. 1995 Nov;43(11):1269-71. doi: 10.1111/j.1532-5415.1995.tb07404.x.
- Verhaar HJ, Samson MM, Jansen PA, de Vreede PL, Manten JW, Duursma SA. Muscle strength, functional mobility and vitamin D in older women. Aging (Milano). 2000 Dec;12(6):455-60. doi: 10.1007/BF03339877.
Fechas de registro del estudio
Fechas importantes del estudio
Inicio del estudio
Finalización primaria (Actual)
Finalización del estudio (Actual)
Fechas de registro del estudio
Enviado por primera vez
Primero enviado que cumplió con los criterios de control de calidad
Publicado por primera vez (Estimar)
Actualizaciones de registros de estudio
Última actualización publicada (Actual)
Última actualización enviada que cumplió con los criterios de control de calidad
Última verificación
Más información
Términos relacionados con este estudio
Términos MeSH relevantes adicionales
Otros números de identificación del estudio
- 10014 (Otro identificador: CTEP)
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