Cementless total hip replacement does not change bone mineral density of the lumbar spine DEXA measurements in 50 patients

Martini, F.; Schmidt, B.; Kremling, Elisabeth; Sell, Stefan

doi:10.3109/17453679609002329

Cited by 6 publications

(3 citation statements)

References 17 publications

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“…Similarly, our patient sample displayed a density loss of between -8.1% and -14.6% in all zones three months postoperatively, compared with the initial eight-day measurement (Table III). These results stress the importance of early, intensive post-operative physiotherapy, as does the work of Martini et al 4 who described the positive effects of early progressive weight-bearing. According to Trevisan et al, 16 bone density loss recovers after the third month with the exception of the calcar.…”

Section: Discussionsupporting

confidence: 54%

“…Good peri-prosthetic bone quality, a sign of a good fit and primary stability, is often measured using dual energy x-ray absorptiometry (DEXA). [3][4][5][6] A number of comparable studies have demonstrated a reduction in peri-prosthetic bone density in the proximal third of the femoral shaft, by between 2% and 21% at between six months and two years after surgery. [7][8][9][10] Only one study, describing a custom-made femoral component, has shown a reduction in proximal bone mineral density of 10% laterally and 16% medially after two years.…”

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confidence: 99%

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Peri-prosthetic bone density after implantation of a custom-made femoral component

Leichtle

Schmidt

et al. 2006

The Journal of Bone and Joint Surgery. British volume

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Peri-prosthetic bone loss caused by stress shielding may be associated with aseptic loosening of femoral components. In order to increase primary stability and to reduce stress shielding, a three-dimensional, cementless individual femoral (Evolution K) component was manufactured using pre-operative CT scans. Using dual energy x-ray absorptiometry, peri-prosthetic bone density was measured in 43 patients, three months, six months, 3.6 and 4.6 years after surgery. At final follow-up there was a significant reduction in mean bone density in the proximal Gruen zones of -30.3% (zone 7) and -22.8% (zone 1). The density in the other zones declined by a mean of between -4% and -16%. We conclude that the manufacture of a three-dimensional, custom-made femoral component could not prevent a reduction in peri-prosthetic bone density.

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Section: Discussionsupporting

confidence: 54%

mentioning

confidence: 99%

Peri-prosthetic bone density after implantation of a custom-made femoral component

Leichtle

Schmidt

et al. 2006

The Journal of Bone and Joint Surgery. British volume

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“…In einigen Studien wird zur Veranschaulichung des Unterschiedes zweier Messreihen die durchschnittliche prozentuale Differenz der Summe zweier Mittelwerte gebildet (3,11,19,20). Diese Berechnung ist zwar mathematisch korrekt, kann jedoch aufgrund der nicht beachteten Vorzeichen (positive oder negative Differenz der Einzelpaare) eine nicht vorhandene Pra Èzision vorta Èuschen.…”

Section: Materials Und Methodeunclassified

Einfluß der Arthrose, Osteoporose und chronischen Polyarthritis auf die Präzision osteodensitometrischer Messungen an der Lendenwirbelsäule und am Ward‘schen Dreieck

et al. 1999

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Bone loss after total hip arthroplasty

et al. 2006

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The aim of the present study is to evaluate periprosthetic bone loss and to compare it with the bone loss in other areas of the body. We also aim to shed light on the course of bone mineral density (BMD) in patients with cemented femoral prosthesis in comparison with those with uncemented ones. We analyzed the BMD using dual-energy X-ray absorptiometry (DEXA) in a consecutively recruited convenience sample of 50 patients with cemented and uncemented total hip arthroplasty (THA). BMD was measured within the first month after surgery as well as 1 year later. In ten of the patients (20%) previously undiagnosed osteoporosis was revealed. Osteoporosis was significantly more frequently detected in patients with cemented compared to those with uncemented femoral stem. We found a significant loss in BMD in the periprosthetic femoral region compared with no losses in other body regions (lumbar spine, radius, contralateral hip). The magnitude of this loss was the highest in Gruen-Zone 7 (mean 15.2% per year). We found no BMD loss difference between patients with cemented and uncemented prosthesis in the Gruen-Zone 2-7. In conclusion these periprosthetic losses may be due to local factors such as periprosthetic bone remodeling, as they contrast with the course of BMD in the lumbar spine, radius and not operated hip.

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Cementless total hip replacement does not change bone mineral density of the lumbar spine DEXA measurements in 50 patients

Cited by 6 publications

References 17 publications

Peri-prosthetic bone density after implantation of a custom-made femoral component

Peri-prosthetic bone density after implantation of a custom-made femoral component

Einfluß der Arthrose, Osteoporose und chronischen Polyarthritis auf die Präzision osteodensitometrischer Messungen an der Lendenwirbelsäule und am Ward‘schen Dreieck

Bone loss after total hip arthroplasty

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