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The Journal of Bone & Joint Surgery British Volume
Vol. 76-B, Issue 3 | Pages 506 - 507
1 May 1994
Gie G Ling R


The Journal of Bone & Joint Surgery British Volume
Vol. 75-B, Issue 5 | Pages 693 - 696
1 Sep 1993
Ling R Timperley A Linder L

We report the histology of a femur retrieved 3.5 years after a cemented revision of a hip replacement in which impaction allografting had been used to fill two large cortical defects. The allograft chips had largely been replaced by viable cortical bone, and the interface between cement and tissue resembled that seen after primary cemented arthroplasty.


The Journal of Bone & Joint Surgery British Volume
Vol. 75-B, Issue 1 | Pages 14 - 21
1 Jan 1993
Gie G Linder L Ling R Simon J Slooff T Timperley A

We report the results of using impacted cancellous allografts and cement for fixation of the femoral component when revision arthroplasty is required in the face of lost bone stock. In 56 hips reviewed after 18 to 49 months there were few complications and a majority of satisfactory results with evidence of incorporation of the graft. Further study and review are necessary, but the use of the method appears to be justified.


The Journal of Bone & Joint Surgery British Volume
Vol. 74-B, Issue 1 | Pages 45 - 49
1 Jan 1992
Fordyce M Ling R

In a prospective, randomised controlled trial, the efficacy of the A-V Impulse System in the prevention of deep-vein thrombosis was investigated in 84 patients who had undergone total hip replacement. The incidence of venographically proven, and clinically significant postoperative deep-vein thrombosis was 40% in the control group and 5% in the treatment group (p less than 0.001). No adverse reactions were recorded.


The Journal of Bone & Joint Surgery British Volume
Vol. 72-B, Issue 6 | Pages 971 - 979
1 Nov 1990
Anthony P Gie G Howie C Ling R

Four cases are described of localised endosteal bone lysis in the femur occurring in association with cemented femoral components that were not obviously 'loose' radiologically. In each, the area of lysis was shown at operation to be related directly to a region in which there was a local defect in the cement mantle surrounding the stem. Via the space between the stem and cement, such defects provide a route through which the contents of the joint cavity may reach the endosteal surface of the femur, subsequently leading to localised bone lysis, and later to frank loosening.


The Journal of Bone & Joint Surgery British Volume
Vol. 72-B, Issue 5 | Pages 810 - 815
1 Sep 1990
Gardner A Fox R Lawrence C Bunker T Ling R MacEachern A

Following the discovery of a powerful venous pump in the foot that is activated by weight-bearing independently of muscular action, a pneumatic impulse device was developed to actuate this pump artificially. In a multicentre international trial the device was shown to reduce post-traumatic and postoperative swelling; pain also was alleviated. Evidence is also presented that dangerously high compartment pressures may be reduced to acceptable levels and fasciotomy avoided. We present an explanation of the clinical effects of activation of the venous footpump, based on recent improved understanding of the physiology of the microcirculation. The hyperaemic response that follows the liberation of endothelial-derived relaxing factor (EDRF) by sudden changes of pressure after weight-bearing or impulse compression is particularly important.


The Journal of Bone & Joint Surgery British Volume
Vol. 69-B, Issue 4 | Pages 620 - 624
1 Aug 1987
Benjamin J Gie G Lee A Ling R Volz R

We report the results of simple laboratory experiments which showed that bleeding pressures known to occur at the bone surface during total hip arthroplasty may compromise the integrity of the bone-cement interface and the cement itself. Such undesirable effects can be prevented by maintaining adequate pressure on the cement until its increased viscosity can resist displacement caused by the bleeding pressure.