The Wrist: Clinical Anatomy and Physical Examination—an Update

Eathorne, Scott W.

doi:10.1016/j.pop.2004.11.009

Cited by 19 publications

(2 citation statements)

References 26 publications

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“…[1] One reason for this is because of the "tenuous" blood supply to the proximal segment. [2] Conventional radiographic imaging is the first imaging tool of choice in scaphoid fractures. [3] For scaphoid fractures, usually trabecular bridging and sclerosis at the fracture line are used to assess bony union.…”

Section: Introductionmentioning

confidence: 99%

Comparative Study Between Role of Computed Tomography and Magnetic Resonance Imaging in Scaphoid Fracture Diagnosis

Desouky¹,

Wahdan²,

Ella³

2021

IJHEP

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Background: Fractures of the scaphoid are the second most common fractures of the upper limb after distal radius fractures. Rapid and accurate diagnosis is needed, because delayed initiation of therapy increases the risk of complications such as non-union and avascular necrosis. Objectives: To compare between the diagnostic accuracies of Computed Tomography and Magnetic Resonance Imaging in detecting scaphoid fractures and its complications. Methods: This study was carried out on 30 patients presented to private Hand clinic from October 2018 to December 2019, with clinical symptoms of tenderness in the anatomic snuffbox after wrist trauma and suspected to have scaphoid fracture in the plane X-ray. They were invited to enroll in a comparison of CT and MRI with regard to their diagnostic utility. Results: The mean age for study participants was 31.8 years (SD = 12.6 years). Nineteen patients (66.7%) had horizontal fractures, 10 had oblique structures (33.3). The MDCT showed that 29 patients had cortical fractures, MRI showed that 27 had cortical fractures, 2 patients had mixed fractures and one patient had a trabecular fracture. Conclusion: Multidetector CT had the superiority over MRI in detection of cortical involvement in scaphoid fractures but MDCT was inferior to MRI in detection of trabecular scaphoid fractures. MRI was superior to MDCT in early detection of stage I Scaphoid non-union advanced collapse. MRI was superior to CT in early detection of avascular necrosis of proximal segment of scaphoid bone.

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Section: Introductionmentioning

confidence: 99%

Comparative Study Between Role of Computed Tomography and Magnetic Resonance Imaging in Scaphoid Fracture Diagnosis

Desouky¹,

Wahdan²,

Ella³

2021

IJHEP

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“…These four bones work in concert to enable the major movements of the wrist. 2 The scaphoid also acts as a link between the two rows of carpal bones.…”

Section: Introductionmentioning

confidence: 99%

Absorbable scaphoid screw development: a comparative study on biomechanics

Wang

Song

et al. 2016

TCRM

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BackgroundThe scaphoid is critical for maintaining the stability and movement of the wrist joints. This study aimed to develop a new internal fixator absorbable scaphoid screw (ASS) for fixation of the scaphoid waist after fracture and to test the biomechanical characteristics of ASS.Materials and methodsAn ASS was prepared using polylactic acids and designed based on scaphoid measurements and anatomic features. Twenty fractured scaphoid waist specimens were randomly divided into experimental and control groups (n=10/group). Reduction and internal fixation of the scaphoid were achieved with either Kirschner wires (K-wires) or ASS. A moving target simulator was used to test palmar flexion and dorsal extension, with the range of testing (waist movement) set from 5° of palmar flexion to 25° of dorsal extension. Flexion and extension were repeated 2,000 times for each specimen. Fracture gap displacements were measured with a computerized tomography scanning. Scaphoid tensile and bending strengths were measured by using a hydraulic pressure biomechanical system.ResultsPrior to biomechanical fatigue testing, fracture gap displacements were 0.16±0.02 mm and 0.22±0.02 mm in the ASS and K-wire groups, respectively. After fatigue testing, fracture gap displacements in the ASS and the K-wire groups were 0.21±0.03 mm and 1.52±0.07 mm, respectively. The tensile strengths for the ASS and K-wire groups were 0.95±0.02 MPa and 0.63±0.02 MPa, respectively.ConclusionFixation using an ASS provided sufficient mechanical support for the scaphoid after fracture.

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Sports Injuries in Children and Adolescents: Classification, Epidemiology, and Clinical Examination

Mallina

Giannoudis

2010

Sports Injuries in Children and Adolescents

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The Wrist: Clinical Anatomy and Physical Examination—an Update

Cited by 19 publications

References 26 publications

Comparative Study Between Role of Computed Tomography and Magnetic Resonance Imaging in Scaphoid Fracture Diagnosis

Comparative Study Between Role of Computed Tomography and Magnetic Resonance Imaging in Scaphoid Fracture Diagnosis

Absorbable scaphoid screw development: a comparative study on biomechanics

Sports Injuries in Children and Adolescents: Classification, Epidemiology, and Clinical Examination

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