Publications by authors named "Michael G J Yam"

Article Synopsis
  • This study investigates the effects of 3D printing-assisted surgery on outcomes for patients with traumatic pelvic and acetabular fractures, comparing it to conventional surgical methods.
  • The research involved 26 patients, with 9 undergoing 3D printing-assisted surgery from 2018 to 2022, noting metrics like surgical duration, blood loss, transfusion rates, and fluoroscopy use.
  • Results showed that while the 3D printing group had shorter surgery times and less blood loss, these differences weren't statistically significant, and no surgical complications arose in either group.
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Introduction: The femoral neck system (FNS) is a safe alternative to cannulated compression screw (CCS) and dynamic hip screw (DHS) in femoral neck fractures.

Methods: A dual-centre retrospective cohort study was performed on femoral neck fractures (AO type 31-B) treated with closed reduction and internal fixation using FNS, DHS or CCS between April 2016 and April 2020. Exclusion criteria were as follows: patients aged below 16 years; chronic fractures beyond 7 days; pathological fractures; fracture extension to the intertrochanteric region or ipsilateral neck and shaft fractures; and open fractures.

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Introduction: Three-dimensional (3D) printing technology has been used in orthopaedic surgery in recent years to manufacture customized surgical cutting jigs. However, there is scarcity of literature and information regarding the optimal parameters of an ideal jig. Our study aims to determine the optimum parameters to design surgical jigs that can produce accurate cuts, and remain practical for use, to serve as a guide for jig creation in future.

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Objectives: To study the impact of bundled payments for surgically managed hip fractures on care access, care quality, health care resource utilization, clinical impact, and acute care cost.

Design: An observational retrospective cohort study using a quasi-experimental design comparing prebundled and postbundled payments through an interrupted time series analysis.

Setting: A public acute care general hospital.

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Background: Post-operative elderly hip fracture patients require significant rehabilitation. Nandrolone is an anabolic steroid used to promote muscle growth. This study aims to examine the effect of nandrolone in improving rehabilitation and quality of life in elderly female patients with hip fractures undergoing hemiarthroplasty.

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Introduction: The reverse shoulder arthroplasty is a common orthopaedic procedure, where placement of the initial guiding wire is paramount to the implant instrumentation and position. To improve the position of the guiding wire, navigation and patient specific instrumentation have been used. These are however expensive and lengthy with many logistical issues.

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Background: Schizophrenia impairs a patient's self-care abilities, which are crucial after a hip fracture. Studies on the outcomes of patients with schizophrenia after a hip fracture are dated. This study aims to investigate the complication rates, 1-year mortality, and functional outcomes of surgically managed hip fractures in elderly patients with schizophrenia.

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