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Orthopaedic Proceedings
Vol. 106-B, Issue SUPP_8 | Pages 23 - 23
10 May 2024
Leary J Lynskey T Muller A
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Objective

Carpal tunnel release surgery is a commonly performed procedure for alleviating symptoms of median nerve compression and restoring hand function. With pressure on theatre time these procedures are now commonly performed in a step-down out-patient facility under local anaesthetic. The choice of suture for skin closure in this procedure can impact the quality of wound healing, patient outcomes and the follow-up required however the question of the best type of suture remains unanswered. The purpose of this study was to compare the outcomes of absorbable and non-absorbable sutures using a randomised control trial design.

Methods

Eighty patients diagnosed with bilateral carpal tunnel syndrome were enrolled and underwent outpatient carpal tunnel release surgery under local anaesthetic in a staged fashion. Random number generation was used to assign each hand to receive interrupted nylon or Vicryl Rapide sutures. Pre-operative data collection included patient demographics, ASA, inflammatory conditions, smoking status as well as a Boston Carpal Tunnel Questionnaire (BCTQ) for each hand. Patients were followed up at 2 and 6 weeks after each operation and the BCTQ was repeated along with the Patient and Observer Scar Assessment Scale and the VAS score for wound discomfort. This study has approval from the DHB ethics committee, Local Iwi, HDC and ANZ Clinical Trials:ACTRN12623000100695.


Orthopaedic Proceedings
Vol. 106-B, Issue SUPP_8 | Pages 3 - 3
10 May 2024
Hancock D Leary J Kejriwal R
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Introduction

This study assessed outcomes of total knee joint replacements (TKJR) in patients who had undergone previous periarticular osteotomy compared with unicompartmental knee replacement (UKR). Establishing a difference in the results of total knee joint replacements following these operations may be an important consideration in the decision-making and patient counselling around osteotomy versus UKR for the management of single-compartment osteoarthritis.

Method

Using data from the New Zealand Joint Registry, we identified 1,895 total knee joint replacements with prior osteotomy and 1,391 with prior UKR. Revision rates and patient-reported outcomes, as measured by the Oxford Knee Score (OKS), between these two groups were compared. Adjusted hazard ratios were also calculated to compare the groups.


Orthopaedic Proceedings
Vol. 99-B, Issue SUPP_4 | Pages 129 - 129
1 Feb 2017
Lyons S Leary J Broach W Shaw L Santoni B Bernasek T
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Background

Periprosthetic joint infection (PJI) is a devastating complication and interest exists in finding lower cost alternatives to current management strategies. Current strategies include a two-stage revision with placement of an antibiotic spacer and delayed placement of a new arthroplasty implant. This study aimed to show that biofilm residue can be reliably eradicated on infected implants, safely allowing re-implantation in a spacer.

Methods

Strains of Staphylococcus aureus MRSA252 or Staphylococcus epidermidis RP62A were grown on cobalt-chrome discs. For each strain, discs were divided into 5 groups (5 discs each) and exposed to several sterilization and biofilm eradication treatments: (1) autoclave, (2) autoclave + sonication; (3) autoclave + saline scrub; (4) autoclave + 4% chlorhexidine (CHC) scrub; and (5) autoclave + sonication + CHC scrub. Sterilization and biofilm eradication were quantified with crystal violet assays and scanning electron microscopy (SEM).