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The Bone & Joint Journal
Vol. 98-B, Issue 9 | Pages 1189 - 1196
1 Sep 2016
The technique of delivery of peri-operative analgesia does not affect the rehabilitation or outcomes following total knee arthroplasty
McDonald DA Deakin AH Ellis BM Robb Y Howe TE Kinninmonth AWG Scott NB
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Aims

This non-blinded randomised controlled trial compared the effect of patient-controlled epidural analgesia (PCEA) versus local infiltration analgesia (LIA) within an established enhanced recovery programme on the attainment of discharge criteria and recovery one year after total knee arthroplasty (TKA). The hypothesis was that LIA would increase the proportion of patients discharged from rehabilitation by the fourth post-operative day but would not affect outcomes at one year.

Patients and Methods

A total of 242 patients were randomised; 20 were excluded due to failure of spinal anaesthesia leaving 109 patients in the PCEA group and 113 in the LIA group. Patients were reviewed at six weeks and one year post-operatively.

Bone & Joint Research
Vol. 2, Issue 11 | Pages 233 - 237
1 Nov 2013
Non-invasive, non-radiological quantification of anteroposterior knee joint ligamentous laxity
Russell DF Deakin AH Fogg QA Picard F
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Objectives

We performed in vitro validation of a non-invasive skin-mounted system that could allow quantification of anteroposterior (AP) laxity in the outpatient setting.

Methods

A total of 12 cadaveric lower limbs were tested with a commercial image-free navigation system using trackers secured by bone screws. We then tested a non-invasive fabric-strap system. The lower limb was secured at 10° intervals from 0° to 60° of knee flexion and 100 N of force was applied perpendicular to the tibia. Acceptable coefficient of repeatability (CR) and limits of agreement (LOA) of 3 mm were set based on diagnostic criteria for anterior cruciate ligament (ACL) insufficiency.