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Evaluation of factors affecting low bone density and Fracture Risk Assessment Tool (FRAX) risk score in kidney transplant patients

Year 2023, Volume: 4 Issue: 1, 6 - 11, 30.05.2023

Abstract

Evaluation of factors affecting low bone density and Fracture Risk Assessment Tool (FRAX) risk score in kidney transplant patients
Abstract
Introduction: Metabolic bone disorders are seen common in kidney transplant patients. Osteopenia and osteoporosis are more but osteonecrosis is less commonly seen complications. In our study, we aimed to investigate low bone mineral density (LBD) and the risk factors affecting it, the FRAX score and the frequency of femoral osteonecrosis and the parameters affecting it.
Method: The data of 90 patients were analyzed retrospectively. The patients' pre-transplant, post-transplant and current clinical findings, demographic characteristics, blood tests, bone mineral density with current Dual Energy X-Ray Absorbsiometry were recorded. FRAX scores of the patients were calculated. The data of patients with a diagnosis of osteonecrosis were analyzed.
Result: Forty two patients (46.7%) were female. LBD was detected in 53 (58%) patients. Osteonecrosis developed in 5 patients (5.5%). Mean FRAX Score risk for major osteoporotic fracture was 6.5% ± 3.9, mean FRAX Score risk for hip fracture was 1.2% ± 1.9. Male gender, high alkaline phosphatase levels, pre-operative hyperphosphatemia and post-operative hypophosphatemia were found more frequently in 5 patients (5.5%) with osteonecrosis. Menopause in women, additional intravenous steroid dose administration, post-transplant hypophosphatemia, low weight and body mass index were significantly more common in patients with LBD. Low weight and menopause in women were identified as risk factors.
Discussion: In our study, it is determined that low weight was also a factor for LBD in addition to the postmenopausal status proven in previous studies. Although it is not a risk factor, the post-operative phosphorus level may be useful.

Böbrek nakilli hastalarda düşük kemik yoğunluğuna etki eden faktörlerin ve FRAX (Fracture Risk Assessment Tool) risk skorununun değerlendirilmesi
Özet
Giriş: Kemik mineral hastalıkları böbrek nakilli hastalarda sık görülmektedir. Osteopeni ve osteoporoz daha fazla olmakla birlikte osteonekroz daha az görülen komplikasyonlardır. Çalışmamızda düşük kemik mineral yoğunluğu (LBD) ve bunu etkileyen risk faktörlerini, femoral osteonekroz sıklığını ve etkileyen parametreleri ve FRAX skorunu araştırmayı amaçladık.
Metod: 90 hastanın verileri retrospektif olarak incelendi. Hastaların nakil öncesi, nakil sonrası ve güncel klinik bulguları, demografik özellikleri, kan tetkikleri, Dual Energy X-Ray Absorbsiyometri ile kemik yoğunlukları kaydedildi. Hastaların FRAX skorları hesaplandı. Osteonekroz tanısı alan hastaların verileri ayrıca analiz edildi.
Sonuç: Kırk iki hasta (%46,7) kadındı. 53 (%58) hastada LBD saptandı. Beş hastada (%5,5) osteonekroz gelişti. Majör osteoporotik kırık için ortalama FRAX Skoru riski %6,5 ± 3,9, kalça kırığı için ortalama FRAX Skoru riski %1,2 ± 1,9 idi. Erkek cinsiyet, yüksek alkalen fosfataz düzeyleri, ameliyat öncesi hiperfosfatemi ve ameliyat sonrası hipofosfatemi osteonekrozlu 5 hastada (%5,5) daha sık bulundu. Kadınlarda menopoz, ek intravenöz steroid dozu uygulaması, nakil sonrası hipofosfatemi, düşük ağırlık ve vücut kitle indeksi, LBD'li hastalarda anlamlı olarak daha yaygındı. Kadınlarda düşük kilo ve menopoz, LBD risk faktörleri olarak belirlendi.
Tartışma: Çalışmamızda önceki çalışmalarda kanıtlanmış olan postmenopozal duruma ek olarak düşük kilonun da LBD için bir faktör olduğu belirlenmiştir. Risk faktörü olmamakla birlikte ameliyat sonrası fosfor seviyesi faydalı olabilir.

References

  • . Montezano AC, Touyz RM. Reactive Oxygen Species and Endothelial Function-Role of Nitric Oxide Synthase Uncoupling and Nox Family Nicotinamide Adenine Dinucleotide Phosphate Oxidases. Basic & Clinical Pharmacology & Toxicology. 2012; 110(1):87-94.

Evaluation of factors affecting low bone density and Fracture Risk Assessment Tool (FRAX) risk score in kidney transplant patients, a single center experience

Year 2023, Volume: 4 Issue: 1, 6 - 11, 30.05.2023

Abstract

Abstract
Introduction: Metabolic bone disorders are seen as common in kidney transplant (KT) patients. Osteopenia and osteoporosis are more but osteonecrosis is a less commonly seen complication. In our study, we aimed to investigate low bone mineral density (LBD) risk factors, the FRAX ( Fracture Risk Assessment Tool) score and the frequency of femoral osteonecrosis in KT patients.
Method: The data of 90 patients were analyzed retrospectively. The patients' pre-transplant, post-transplant and current clinical findings, demographic characteristics, blood tests and bone mineral density (BMD) with current Dual Energy X-Ray Absorbsiometry were recorded. FRAX scores of the patients were calculated. The data of patients with a diagnosis of osteonecrosis were analyzed.
Result: Forty-two patients (46.7%) were female. LBD was detected in 53 (58%) patients. Osteonecrosis developed in 5 patients (5.5%). The mean FRAX Score risk for major osteoporotic fracture was 6.5% ± 3.9, mean FRAX Score risk for hip fracture was 1.2% ± 1.9. Male gender, high alkaline phosphatase levels, pre-operative hyperphosphatemia and post-operative hypophosphatemia were found more frequently in 5 patients (5.5%) with osteonecrosis. Menopause in women, additional intravenous steroid dose administration, post-transplant hypophosphatemia, lower weight and body mass index were significantly more frequent in patients with LBD. Low weight and menopause in women were found as risk factors.
Conclusion: In our study, it is determined that low weight was also a factor for LBD in addition to the postmenopausal status proven in previous studies. Although it is not a risk factor, the post-operative phosphorus level may be useful.
Keywords: Hypophosphatemia; osteoporosis; osteonecrosis, kidney transplantation.

Böbrek nakilli hastalarda düşük kemik yoğunluğuna etki eden faktörlerin ve FRAX (Fracture Risk Assessment Tool) risk skorununun değerlendirilmesi, tek merkez deneyimi
Özet
Amaç: Kemik mineral hastalıkları böbrek nakilli hastalarda sık görülmektedir. Osteopeni ve osteoporoz daha fazla olmakla birlikte osteonekroz daha az görülen komplikasyonlardır. Çalışmamızda düşük kemik mineral yoğunluğu (LBD) risk faktörlerini, femoral osteonekroz sıklığını ve FRAX skorunu araştırmayı amaçladık.
Yöntem: 90 hastanın verileri retrospektif olarak incelendi. Hastaların nakil öncesi, nakil sonrası ve güncel klinik bulguları, demografik özellikleri, kan tetkikleri, Dual Energy X-Ray Absorbsiyometri ile kemik yoğunlukları kaydedildi. Hastaların FRAX skorları hesaplandı. Osteonekroz tanısı alan hastaların verileri ayrıca analiz edildi.
Bulgular: Kırk iki hasta (%46,7) kadındı. 53 (%58) hastada LBD saptandı. Beş hastada (%5,5) osteonekroz gelişti. Majör osteoporotik kırık için ortalama FRAX Skoru riski %6,5 ± 3,9, kalça kırığı için ortalama FRAX Skoru riski %1,2 ± 1,9 idi. Erkek cinsiyet, yüksek alkalen fosfataz düzeyleri, ameliyat öncesi hiperfosfatemi ve ameliyat sonrası hipofosfatemi osteonekrozlu 5 hastada (%5,5) daha sık bulundu. Kadınlarda menopoz, ek intravenöz steroid dozu uygulaması, nakil sonrası hipofosfatemi, düşük ağırlık ve vücut kitle indeksi, LBD'li hastalarda anlamlı olarak daha yaygındı. Kadınlarda düşük kilo ve menopoz, LBD risk faktörleri olarak belirlendi.
Sonuç: Çalışmamızda önceki çalışmalarda kanıtlanmış olan postmenopozal duruma ek olarak düşük kilonun da LBD için bir faktör olduğu belirlenmiştir. Risk faktörü olmamakla birlikte ameliyat sonrası fosfor seviyesi faydalı olabilir.
Anahtar Kelimeler: Hipofosfatemi; osteonekroz; osteoporoz; böbrek nakli.

References

  • . Montezano AC, Touyz RM. Reactive Oxygen Species and Endothelial Function-Role of Nitric Oxide Synthase Uncoupling and Nox Family Nicotinamide Adenine Dinucleotide Phosphate Oxidases. Basic & Clinical Pharmacology & Toxicology. 2012; 110(1):87-94.
There are 1 citations in total.

Details

Primary Language English
Subjects Clinical Sciences
Journal Section Research Articles
Authors

Başak Boynueğri 0000-0003-4054-2069

Bülent Demirelli 0000-0001-9110-868X

Publication Date May 30, 2023
Submission Date January 18, 2023
Acceptance Date April 14, 2023
Published in Issue Year 2023 Volume: 4 Issue: 1

Cite

APA Boynueğri, B., & Demirelli, B. (2023). Evaluation of factors affecting low bone density and Fracture Risk Assessment Tool (FRAX) risk score in kidney transplant patients. Aksaray Üniversitesi Tıp Bilimleri Dergisi, 4(1), 6-11.
AMA Boynueğri B, Demirelli B. Evaluation of factors affecting low bone density and Fracture Risk Assessment Tool (FRAX) risk score in kidney transplant patients. asujms. May 2023;4(1):6-11.
Chicago Boynueğri, Başak, and Bülent Demirelli. “Evaluation of Factors Affecting Low Bone Density and Fracture Risk Assessment Tool (FRAX) Risk Score in Kidney Transplant Patients”. Aksaray Üniversitesi Tıp Bilimleri Dergisi 4, no. 1 (May 2023): 6-11.
EndNote Boynueğri B, Demirelli B (May 1, 2023) Evaluation of factors affecting low bone density and Fracture Risk Assessment Tool (FRAX) risk score in kidney transplant patients. Aksaray Üniversitesi Tıp Bilimleri Dergisi 4 1 6–11.
IEEE B. Boynueğri and B. Demirelli, “Evaluation of factors affecting low bone density and Fracture Risk Assessment Tool (FRAX) risk score in kidney transplant patients”, asujms, vol. 4, no. 1, pp. 6–11, 2023.
ISNAD Boynueğri, Başak - Demirelli, Bülent. “Evaluation of Factors Affecting Low Bone Density and Fracture Risk Assessment Tool (FRAX) Risk Score in Kidney Transplant Patients”. Aksaray Üniversitesi Tıp Bilimleri Dergisi 4/1 (May 2023), 6-11.
JAMA Boynueğri B, Demirelli B. Evaluation of factors affecting low bone density and Fracture Risk Assessment Tool (FRAX) risk score in kidney transplant patients. asujms. 2023;4:6–11.
MLA Boynueğri, Başak and Bülent Demirelli. “Evaluation of Factors Affecting Low Bone Density and Fracture Risk Assessment Tool (FRAX) Risk Score in Kidney Transplant Patients”. Aksaray Üniversitesi Tıp Bilimleri Dergisi, vol. 4, no. 1, 2023, pp. 6-11.
Vancouver Boynueğri B, Demirelli B. Evaluation of factors affecting low bone density and Fracture Risk Assessment Tool (FRAX) risk score in kidney transplant patients. asujms. 2023;4(1):6-11.