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Orthopaedic Proceedings
Vol. 94-B, Issue SUPP_XXXIX | Pages 40 - 40
1 Sep 2012
Nanjayan S Brankin C Warriar R Abuzakuk T
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Introduction

There is conflicting evidence in the literature regarding outcome of patients living in their own home prior to a fracture neck of femur, when using discharge destination and rehabilitation as measures of outcome. We investigated the factors predicting outcome following neck of femur (NOF) fractures, in patients previously living in their own home

Method

Medical records of all 292 patients admitted to Royal Derby Hospital between January and October 2010 with a fractured NOF (who lived in their own home prior to admission) were obtained retrospectively. Data included patient demographics; type of surgical intervention; mobility status and level of independence before admission; nature of fracture and patients' ASA grade. Outcome measures including: number of days spent in hospital; number of days spent in rehabilitation; mortality; mobility on discharge; and discharge destination, were also sought. Data was analysed using SPSS Version 18.


Orthopaedic Proceedings
Vol. 93-B, Issue SUPP_III | Pages 305 - 305
1 Jul 2011
Bishnoi A Swamy G Majeed H Abuzakuk T
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Background: Aetiology of venous thromboembolism is multifactorial and thromboprophylaxis includes mechanical and chemical agents. There is no clear consensus on the choice of chemical agent in elective total hip arthroplasty (THA), although National Institute of Clinical Excellence (NICE) recommends low molecular weight heparin or fondaparinux to all patients.

Aim: The aim of our study was to define the efficacy and safety of various chemical agents currently used for venous throboprophylaxis – namely aspirin, warfarin and low molecular weight heparin in primary THA.

Methods: We retrospectively reviewed 905 consecutive patients with primary THA during an 18 month period. Medical notes were reviewed to record demographic data, inpatient and outpatient thromboprophylactic agents, total hospital stay, readmission, incidence of DVT, pulmonary embolism and death following surgery. Post-operative mobility, transfusion requirements and complications were noted. Suspected thromboembolic events were investigated with venous Doppler ultrasound scanning and CTPA.

Results: 417 (46%) patients received aspirin, 253 received enoxaparin, 190 patients had low dose warfarin and 45 patients had none or multiple agents for inpatient thromboprophylaxis. 615 patients had cemented and 290 patients received uncemented total hip arthroplasty. Patients predominantly received aspirin (61%) as outpatient prophylactic agent. 41 patients were investigated for a suspected thromboembolic event. 2 patients had DVT and 2 patients had PE. There were 3 deaths within 6 weeks, one each due to PE, sepsis and unknown cause. All 4 patients with thromboembolism were on enoxaparin for prophylaxis.

Conclusion: In our study aspirin was the preferred choice for thromboprophylaxis following total hip arthroplasty. We found that aspirin was most effective with no complications and enoxaparin was least effective. We advise the use of aspirin as the first choice drug for thromboprophylaxis as reiterated by some recent studies.


Orthopaedic Proceedings
Vol. 91-B, Issue SUPP_I | Pages 51 - 52
1 Mar 2009
Skinner J Donaldson J Abuzakuk T Shenava Y Kumar S Jaiswal P Pollock R Carrington R Briggs T
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We aimed to determine whether proximal femoral bone remodelling, as measured by DEXA scan for each Gruen Zone, differed for 3 different femoral stem designs. These were:

Group 1 – Triple taper polished (C-stem J& J DePuy)

Group 2 – Double taper polished (TPS J& J DePuy)

Group 3 – Collared satin finish stem (Stanmore Biomet)

Ethical Committee approval was obtained and all patients gave informed consent. All operations were performed by 3 surgeons using a standard lateral approach, third generation cementing technique and a standard post-operative regime.

Seventy-five patients were randomised prospectively using a stratified randomisation programme for known risk factors in bone density. The randomisation was stratified by age, sex, Charnley Group (A or B), BMI and femoral neck bone mineral density. There were 25 patients in each Group, 5 patients did not have complete data sets and were therefore withdrawn from evaluation.

The Groups were similar with regard to age, sex, BMI, BMD and Charnley Group. Patients were followed up at 3, 6, 12 and 24 months by Nurse Practitioners for clinical and radiological evaluation and DEXA scan at each time of follow-up. There were no catastrophic failures of sepsis or dislocation. All patients functioned well at 24 months by Harris Hip Score.

The bone remodelling pattern will be described for each stem design. Findings are summarised thus. In the lateral Gruen Zones the triple taper and collared stem design faired better and both behaved differently to the double taper design. In Gruen Zone 7, all stems demonstrated reduced bone density as compared to pre-operative scans but this was less with the triple taper design.


We prospectively randomised 104 consecutive patients undergoing primary cemented total knee arthroplasty to receive either a standard suction drain© (Redivac) or autologous transfusion drain® (Bellovac). There were fifty two patients in each group. Randomisation was performed using a software program (Minim) which set to stratify patients based on their age, sex and body mass index (BMI). All procedures were performed under pneumatic tourniquet.

Drains were released in recovery room 20 minutes after surgery and were removed 24 hours following surgery. Blood collected in the standard suction drain was discarded but blood collected in the autologous transfusion drains was transfused unwashed to the patient within six hours of collection.

13 patients (25%) in the study group had two or more units of homologous blood transfused in addition to the blood collected postoperatively and re-transfused (Average= 438mls). 12 patients (23%) in the control group had two or more units of homologous blood transfused. No sepsis, transfusion reactions, or coagulopathies were associated with the autologous blood re-transfused in the study group.

The use of autologous transfusion system (Bellovac) proved to be safe but failed to reduce the need for postoperative homologous blood transfusion following uncomplicated total knee arthroplasty.


Orthopaedic Proceedings
Vol. 84-B, Issue SUPP_I | Pages - 6
1 Mar 2002
O’Toole G Abuzakuk T Murray P
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Previous reports have indicated that elderly patients suffer more operative complications than younger patients undergoing total hip arthroplasty (THR)

We reviewed 46 consecutive patients over 85 years of age at the time of THR. All patients were at least 3 years post-op at the time of review. Pre and post operative D’Aubigne-Postel Hip Scores were assigned. Length of stay, transfusion rates, intra-operative blood loss and patient satisfaction were also noted. Statistical comparisons were mode with a control group of patients, average age 66.3 years.

The average age at the time of operation was 86.6 (range 85–92) years. The average follow up was 52.8 (range 38–86) months. The average hospital stay was 21.1 (range 12–40, median 18) days. Pre-operative D’Aubigne-Postel Score averaged 8.4 (range 1–14) points, post-operative D’Aubigne-Postel Score averaged 13.1 (range 9–18) points. Subjective satisfaction was high. There were no operative complications and no dislocations during the follow up period. There were no deaths within one year of surgery. Four of the 45 patients died during the 3 year follow up period.

When compared to the control group, patients over the age of 85 years had an increased intra-operative blood loss, p< 0.001, they also had an increased blood transfusion at rate, p=0.0005. Patients over the age of 85 remained in hospital longer, p=0.0002. Comparing D’Aubigne-Postel Score, patients over the age of 85 years benefited as much as the control group, p=0.0001.

We conclude that THR is the over 85 years old patients is a safe procedure and yields good functional results.