Background: Avascular necrosis (AVN) of the metacarpal head is a rare disease that may lead to progressive destruction of the metacarpophalangeal joint and hand function. This study aimed to describe the epidemiology, possible risk factors, clinical presentation, diagnostic workup, and treatment of the rare condition of avascular necrosis of the metacarpal head.
Methods: Articles were searched using the subject words "Dieterich disease","Mauclaire's disease", and "avascular necrosis of metacarpal head" in the PubMed and Scopus databases. Studies were retained for review after meeting the inclusion criteria. Those outcomes relevant to diagnose and assessing AVN of the metacarpal head and those related to curative management were extracted.
Results: The literature search revealed 45 studies with 55 patients. Although the aetiology of osteonecrosis has not been clearly delineated, AVN of the metacarpal head most commonly arises from trauma but other risk factors may also be involved. Plain radiographs are often negative and therefore likely to be missed. Early-stage osteonecrosis of the metacarpal head was best assessed using MRI. Given the rarity of this condition, there is no clear consensus on the treatment.
Conclusions: Avascular necrosis of the metacarpal head should be considered in the differential diagnosis of painful metacarpophalangeal joints. An early understanding of this unusual disease will provide an optimal clinical outcome, restoring joint activity, and resolving pain. Nonoperative treatment cannot cure all patients. Surgical management is based on the patient and lesion characteristics.
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http://dx.doi.org/10.1097/JS9.0000000000000377 | DOI Listing |
Malays Orthop J
November 2024
Department of Burns and Plastic Surgery, All India Institute of Medical Sciences, Raipur, India.
Free fibula flap has been a workhorse for head, neck, and extremity long bone defects. We discuss the reconstruction challenge in an unusual hand injury case involving the loss of multiple metacarpals and soft tissue with surprising preservation of finger vascularity. The reconstructive goals were addressed with a microvascular osteocutaneous fibula flap transfer with multiple osteotomies to create spitting images of metacarpals and soft tissue defects restored with the skin paddle.
View Article and Find Full Text PDFCurr Biol
December 2024
Lauer Foundation for Paleontology, Science and Education, Wheaton, IL 60189, USA.
For over a century, there was a major gap in our understanding of the evolution of the flying Mesozoic reptiles, the pterosaurs, with a major morphological gap between the early forms and the derived pterodactyloids. Recent discoveries have found a cluster of intermediate forms that have the head and neck of the pterodactyloids but the body of the early grade, yet this still leaves fundamental gaps between these intermediates and both earlier and more derived pterosaurs. Here, we describe a new and large Jurassic pterosaur, Skiphosoura bavarica gen.
View Article and Find Full Text PDFBone
January 2025
Master of Science Degree Program in Innovation for Smart Medicine, Chang Gung University, Taoyuan, Taiwan; Division of Rheumatology, Allergy and Immunology, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan; Center for Artificial Intelligence in Medicine, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan. Electronic address:
Purpose: Osteoporosis, affecting over 200 million individuals, often remains unrecognized and untreated, increasing the risk of fractures in older adults. Osteoporosis is typically diagnosed with bone mineral density (BMD) measured by dual-energy X-ray absorptiometry (DXA). This study aims to develop DeepDXA-Hand, a deep learning model using the efficient CNN-based deep learning architecture, for opportunistic osteoporosis screening from hand radiographs.
View Article and Find Full Text PDFEur J Trauma Emerg Surg
October 2024
Diakonessenhuis, Utrecht, Netherlands.
Purpose: This study aimed to investigate practice variation in non-operative treatment methods and immobilisation duration for metacarpal fractures, and to evaluate patient-reported outcomes.
Methods: Conducted in 12 Dutch hospitals over three months in 2020, this study included adult patients with non-operatively treated solitary metacarpal fractures. Fractures were classified into intra-articular base, extra-articular base, shaft, neck, and intra-articular head fractures.
Proc Inst Mech Eng H
October 2024
Royal Liverpool University Hospital, Liverpool, UK.
Explant analysis can provide important understanding of how artificial joints perform in the human body. The articulating surfaces of the metacarpal head and the radius cup from a chromium nitride coated metal-on-metal Motec wrist implant were analysed. Due to bone resorption and aseptic loosening, the implant was removed after 6 years in the patient, and metallosis was observed during removal.
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