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Orthopaedic Proceedings
Vol. 94-B, Issue SUPP_XXXIX | Pages 84 - 84
1 Sep 2012
Abouazza O O'Donnell T
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Introduction

Reported advantages of unicompartmental knee replacement (UKR) over total knee replacement (TKR) include better kinematics and less postoperative pain. The reported longevity of UKRs, regardless of design, still does not compare as favourably as that of TKR. Resurfacing-type UKR differ to other UKR in that they result in minimal bone resection.

Objectives

The aim of this study was to review our experience with conversion of a resurfacing UKR prosthesis to a TKR. We sought to determine the causes of failure and compare outcomes in terms of functional scores, range of motion and radiographic measures. We also determined the use of graft and prosthetic revision supplements as well as stemmed implants.


Orthopaedic Proceedings
Vol. 93-B, Issue SUPP_III | Pages 312 - 313
1 Jul 2011
Abouazza O Queally J Harmon D
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Study Objective: To determine the feasibility of ultrasound-guided femoral nerve blockade performed by orthopaedic trainees.

Methods: This was a prospective study involving patients presenting to Acciedent & Emergency with fractured femurs requiring analgesia. Physicians performing the nerve blocks were orthopaedic trainees who had participated in a 1-hour training session. The participants underwent ultrasonography-guided femoral nerve blocks to provide analgesia. Any additional analgesia required was recorded. Subjects rated their pain on a Numerical Pain Rating Scale (NRS) before the nerve block and 30 & 60minutes after the nerve block. The primary outcomes for feasibility were the requirement for additional analgesia following injection and the median reduction in pain on the Numerical Pain Rating Scale after the nerve block. Secondary outcomes for feasibility included the median time for completion of the entire nerve block procedure for each subject (from initiation of ultrasonography to completion of the last injection) and the percentage of participants wishing to have the same procedure for similar injuries in the future. Other secondary outcomes included the percentage of participants with complications during the procedure including nerve and vascular injection.

Results: All procedures (100%) were completed without additional anesthesia or analgesia with significant reduction in Numerical Pain Rating Scale. There were no immediate complications

Conclusion: Orthopaedic trainees can perform ultrasound-guided femoral nerve blocks in the emergency department with high patient satisfaction, after minimal training.