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Orthopaedic Proceedings
Vol. 100-B, Issue SUPP_3 | Pages 89 - 89
1 Apr 2018
Salhab M Kimpson P Freeman J Stewart T Stone M
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Background

Acute pain following total knee replacements (TKRs) is associated with higher peri-operative opiate requirements and their side effects, longer hospital stay and lower patient satisfaction (Petersen 2014). It may also be associated with higher rates of chronic pain at 1 and 5 years (Beswick 2012). We present a novel technique using combination of Local Infiltration Anaesthesia (LIA) with PainKwell infusion system (Bupivacaine 0.5 @ 4mls and 6mls/hr) to improve pain management following TKRs.

Methods

Between October 2015 and March 2016. 110 patients undergoing primary TKR were prospectively studied. All patients studied had spinal anaesthesia (SA) with diamorphine. Demographics between the two groups were similar.

Group 1. SA plus LIA plus traditional multimodal analgesia. 32 patients.

Group 2. SA plus LIA plus PainKwell for 48 hours rate 4mls. 38 patients

Group 3. SA plus LIA plus PainKwell for 48 hours rate 6mls. 40 patients


Orthopaedic Proceedings
Vol. 99-B, Issue SUPP_9 | Pages 57 - 57
1 May 2017
Salhab M Macdonald D Kimpson P Freeman J Stewart T Stone M
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Background

Hip arthroplasties are associated with high postoperative pain scores. In some reports, moderate to severe pain was 58% on the first day postoperatively in total hip replacements (THRs). Several techniques are currently used at our institution to tackle acute pain following THRs. These include: 1) Spinal anaesthetic (SA) with Diamorphine only; 2) General anaesthetic (GA) only; 3) SA with local infiltration anaesthetic mixture 1 (LIA1,). Mixture 1 consisted of ropivacaine, adrenaline, and ketorolac; 4) SA with LIA mixture 2 (LIA2). Mixture 2 consisted of bupivacaine and adrenaline; 5) SA with LIA1 and PainKwell pump system. In this study we report on the techniques of acute pain control following THR at our regional centre for elective primary THRs.

Methods

Between June 2011 and July 2014, 173 consecutive patients undergoing primary THR using the posterior approach were prospectively followed up. Group 1. GA only. 31 patients, Group 2. SA only. 37 patients, Group 3. SA plus LIA1 only. 38 patients, Group 4. SA plus LIA2 only, 34 patients, Group 5. SA plus LIA1 plus PainKwell Pump System for 48 hours. 33 patients.


Orthopaedic Proceedings
Vol. 99-B, Issue SUPP_9 | Pages 98 - 98
1 May 2017
Salhab M Kimpson P Freeman J Stewart T Stone M
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Background

Pain control following knee replacement (TKR) surgery is often poor. Moderate to severe pain is often reported in the first 48 hours following surgery requiring opiate analgesia. The Local Infiltration Anaesthetic (LIA) technique has been described as a method to reduce post operative pain. In this study we report on our experience using LIA in addition to the PainKwell system (Peak Medical) of continuous infusion intra-articularly, of 0.25% bupivacaine at 4–5 mls/hour for 48 hours post surgery. The PainKwell catheter is placed in the knee joint during surgery.

Methods

Between the June 2012 and Sep 2012, 62 patients undergoing primary TKR were prospectively followed up. All patients studied had spinal anaesthesia (SA) with diamorphine. Group 1. GA. No LIA and no PainKwell. 20 patients. Group 2. SA plus LIA plus PainKwell for 48 hours post operatively with catheter placed anteriorly under the patella. 21 patients. Group 3. SA plus LIA plus PainKwell for 48 hours post operatively with catheter placed posteriorly in the knee joint. 21 patients.


Orthopaedic Proceedings
Vol. 91-B, Issue SUPP_I | Pages 140 - 140
1 Mar 2009
Nisar A Salama A Freeman J Davies A
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Aim:This study was carried out to assess various factors responsible for the development of avascular necrosis and the effect of treatment on clinical outcome.

Methods: We studied the clinical notes and radiographs of patients presenting with SCFE during the period between 1994 and 2003.

Results: Seventy three patients (n=73) with ninety two (n=92) hips were included in the study. There were 16 acute, 43 acute-on-chronic, 29 chronic and 4 preslips. Seventy Seven (n = 77) slips were classified as stable and 15 as unstable slips. Fifty three slips (57.6%) were mild, 34 (37%) were moderate and five (5.4%) were severe slips. Despite no deliberate attempts to reduce the slip at the time of surgery eighteen hips (n=18) showed a median decrease in slip angle of 8 degrees (range 2–36) in acute and acute-on-chronic slips. The mean preoperative slip angle was 32 degrees (range 9–76) compared to postoperative slip angle of 29.9 degrees (range 10–75) (p=0.004). Four patients developed avascular necrosis (AVN). Intraoperative reduction of the slip was significantly related to development of AVN (p< 0.001). According to the criteria of Heyman and Herndon eight patients had functional deficit at the time of final follow up and clinical outcome was fair, poor or failure. All of these patients had a reduction in the angle of slip at the postoperative radiographs compared to their preoperative radiographs.

Conclusion: Reduction of slipped capital femoral epiphysis is responsible for poor outcome and also related to the development of avascular necrosis. We recommend single in situ pinning for these cases regardless of severity of slip.


Orthopaedic Proceedings
Vol. 90-B, Issue SUPP_II | Pages 214 - 214
1 Jul 2008
Nisar A Morris M Freeman J Cort J Rayner P Shahane S
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Background: Subacromial decompression surgery is associated with significant postoperative pain. We compared the effect of intrascalene block (ISB) and sub-acromial bursa block (SBB) with simple opiate based analgesia

Methods: In a prospective, randomised controlled trial, fifty-three (n = 53) patients scheduled for arthroscopic subacromial decompression were randomised into three groups receiving Intrascalene block (n =19), Subacromial Bursa block (n =19) or neither of the two blocks (n =15 controls). Patients with cuff pathology were excluded. ISB was performed preoperatively with 20 mls of 1% Prilocaine and 10 mls of 0.5 % Bupivacaine. SBB was given with 20 mls of 0.5% Bupivacaine postoperatively. All patients received standardised general anaesthetic and postoperative analgesia. Pain, sickness and sedation scores were noted at 1, 2, 4, 8, 12 and 24 hours postoperatively. The postoperative consumption of morphine and the time when the first bolus of morphine was required were also noted.

Results: The visual analogue pain scores in the ISB and SBB group were lower than the control group in the first twelve hours postoperatively achieving statistical significance but there were no significant differences between the SBB and ISB groups. The controls consumed more morphine postoperatively (mean 32.3 mls) than SBB (21.21 mls) and ISB groups (14.00 mls) (p < 0.001). The time for first bolus was earlier in the controls (mean 30.2 mins) as compared to both SBB (72.7 mins) and ISB groups (105.8 mins) (p< 0.001). The oral analgesic intake was less in the SBB and ISB groups than the controls (p = 0.004), but there was no difference between the two treatment groups.

Conclusion: Whilst intrascalene block remains the gold standard where expertise is available for its administration, subacromial bursa block is a safe alternative in patients with intact rotator cuff undergoing arthroscopic subacromial decompression.