Decreased bone density of the distal femur after uncemented knee arthroplasty: A1 -year follow-up of 29 knees

Petersen, Michael Mørk; Lauritzen, Jes Bruun; Pedersen, John Gregor; Lund, B.

doi:10.3109/17453679609002327

Cited by 57 publications

(45 citation statements)

References 25 publications

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“…Some measurements of bone density have been made in the distal femur after primary knee replacement, using dual photon absorptiometry (Petersen et al 1995(Petersen et al , 1996 or dual energy Xray absorptiometry (Liu et al 1995, Spittlehouse et al 1999, van Loon et al 2001. However, the use of these data for validating the model is limited because there is no agreement on the de nition of the regions of interest; various ROIs have been used in each study.…”

Section: Discussionmentioning

confidence: 99%

Stemmed femoral knee prostheses: Effects of prosthetic design and fixation on bone loss

Lenthe¹,

Willems²,

Malefijt³

et al. 2002

Acta Orthopaedica Scandinavica

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Section: Discussionmentioning

confidence: 99%

Stemmed femoral knee prostheses: Effects of prosthetic design and fixation on bone loss

Lenthe¹,

Willems²,

Malefijt³

et al. 2002

Acta Orthopaedica Scandinavica

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“…Some measurements of bone density have been made in the distal femur after primary knee replacement, using dual photon absorptiometry (Petersen et al 1995(Petersen et al , 1996 or dual energy Xray absorptiometry (Liu et al 1995, Spittlehouse et al 1999, van Loon et al 2001. However, the use of these data for validating the model is limited because there is no agreement on the definition of the regions of interest; various ROIs have been used in each study.…”

Section: Discussionmentioning

confidence: 99%

Stemmed femoral knee prostheses

Lenthe¹,

Willems²,

Malefijt³

et al. 2002

Acta Orthopaedica Scandinavica

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“…In total knee arthroplasty (TKA), the distal femoral bone stock may in time be compromised because of either stress shielding [1][2][3][4] or osteolysis induced by wear particles. [5][6][7] These femoral bone defects are often uncontained and pose serious problems during revision surgery.…”

mentioning

confidence: 99%

Autologous morsellised bone grafting restores uncontained femoral bone defects in knee arthroplasty

Loon¹,

Malefijt²,

Buma³

et al. 2000

The Journal of Bone and Joint Surgery. British volume

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T he properties of impacted morsellised bone graft (MBG) in revision total knee arthroplasty (TKA) were studied in 12 horses. The left hind metatarsophalangeal joint was replaced by a human TKA. The horses were then randomly divided into graft and control groups. In the graft group, a unicondylar, lateral uncontained defect was created in the third metatarsal bone and reconstructed using autologous MBG before cementing the TKA. In the control group, a cemented TKA was implanted without the bone resection and grafting procedure. After four to eight months, the animals were killed and a biomechanical loading test was performed with a cyclic load equivalent to the horse's body-weight to study mechanical stability. After removal of the prosthesis, the distal third metatarsal bone was studied radiologically, histologically and by quantitative and micro CT.Biomechanical testing showed that the differences in deformation between the graft and the control condyles were not significant for either elastic or time-dependent deformations. The differences in bone mineral density (BMD) between the graft and the control condyles were not significant. The BMD of the MBG was significantly lower than that in the other regions in the same limb. Micro CT showed a significant difference in the degree of anisotropy between the graft and host bone, even although the structure of the area of the MBG had trabecular orientation in the direction of the axial load. Histological analysis revealed that all the grafts were revascularised and completely incorporated into a new trabecular structure with few or no remnants of graft. Our study provides a basis for the clinical application of this technique with MBG in revision TKA.

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Decreased bone density of the distal femur after uncemented knee arthroplasty: A1 -year follow-up of 29 knees

Cited by 57 publications

References 25 publications

Stemmed femoral knee prostheses: Effects of prosthetic design and fixation on bone loss

Stemmed femoral knee prostheses: Effects of prosthetic design and fixation on bone loss

Stemmed femoral knee prostheses

Autologous morsellised bone grafting restores uncontained femoral bone defects in knee arthroplasty

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