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Orthopaedic Proceedings
Vol. 94-B, Issue SUPP_IX | Pages 10 - 10
1 Mar 2012
Mertes S Raut S Khanduja V
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Aim

The aim of this study was to determine the factors which were responsible for differences between patients achieving the Trust target of discharge on post-operative day 5 after a primary total knee replacement and those not achieving it, in the cohort of over 75 year olds.

Methods and Results

Of all the patients undergoing a TKR at Addenbrooke's Hospital in 2008, those over 75 were identified (n=103). From the literature pre-, intra- and post-operative factors that had previously been shown to affect length of stay were identified. Patient notes were examined for details on each of these and the patients divided into 2 groups according to whether their discharge was achieved by day 5 or not. Data from 74 operations was available at the time of submission of this abstract. Pearson's Chi-squared test, student's independent t-test or the Mann-Whitney U test were performed on the data depending on the nature of the variable analysed. The following factors were found to be significantly different between the 2 groups at the 95% confidence level: pre-operative use of a walking aid (p=0.033), pre-operative Hb (p=0.003), post-operative Hb (p=0.001), post-operative requirement of a blood transfusion, post-operative complication (p<0.001), post-operative day on which active knee flexion to 90° was achieved (p=0.003). In addition the following factors were found to be significant at the 90% confidence level: age (p=0.082), comorbidity (p=0.086), marital status (p=0.095) and mobilisation by post-operative day 2 (p=0.082)


Orthopaedic Proceedings
Vol. 94-B, Issue SUPP_IX | Pages 46 - 46
1 Mar 2012
H HS Suhani H Lydia Q Nair N Khanduja V
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Aim

The aim of this study was to study the course of the infra-patellar branch of the saphenous nerve (IPBSN) and describe its anatomical variations and relations.

Materials and Methods

Twenty-eight formalin-fixed cadaver lower extremity specimens were methodically dissected in the University Department of Anatomy. Dissection included identifying the saphenous nerve and tracing it distally till it pierced the deep fascia between the tendons of gracilis and sartorius. At this point, the saphenous nerve gave a branch that pierced the sartorius and became subcutaneous, known as the infrapatellar branch. The association of the nerve trunk with the sartorius muscle in terms of whether it originated above it, below it or pierced through it was studied. Following this the nerve was dissected along its course distally to the point of its termination where it gave one to three branches. The relationship of the point of termination of the IPBSN with bony surface landmarks like the medial border of the patella, the apex of the patella and the tibial tuberosity were also studied. The distance of the trunk from medial margin of patella was measured.


The Journal of Bone & Joint Surgery British Volume
Vol. 88-B, Issue 9 | Pages 1169 - 1172
1 Sep 2006
Khanduja V Somayaji HS Harnett P Utukuri M Dowd GSE

We report a retrospective analysis of the results of combined arthroscopically-assisted posterior cruciate ligament reconstruction and open reconstruction of the posterolateral corner in 19 patients with chronic (three or more months) symptomatic instability and pain in the knee.

All the operations were performed between 1996 and 2003 and all the patients were assessed pre- and post-operatively by physical examination and by applying three different ligament rating scores. All also had weight-bearing radiographs, MR scans and an examination under anaesthesia and arthroscopy pre-operatively. The posterior cruciate ligament reconstruction was performed using an arthroscopically-assisted single anterolateral bundle technique and the posterolateral corner structures were reconstructed using an open Larson type of tenodesis.

The mean follow up was 66.8 months (24 to 110). Pre-operatively, all the patients had a grade III posterior sag according to Clancy and demonstrated more than 20° of external rotation compared with the opposite normal knee on the Dial test. Post-operatively, seven patients (37%) had no residual posterior sag, 11 (58%) had a grade I posterior sag and one (5%) had a grade II posterior sag. In five patients (26%) there was persistent minimal posterolateral laxity. The Lysholm score improved from a mean of 41.2 (28 to 53) to 76.5 (57 to 100) (p = 0.0001) and the Tegner score from a mean of 2.6 (1 to 4) to 6.4 (4 to 9) (p = 0.0001).

We conclude that while a combined reconstruction of chronic posterior cruciate ligament and posterolateral corner instability improves the function of the knee, it does not restore complete stability.