Inter-relationships of Metacarpals 1 to 5, Regarding Their Length, Metaphyseal Midshaft Width, Articular Surface Area of Head and Base, Age, and Sex: A Cadaveric Study

Sephien, Andrew; Bethel, Claire F.; Gulick, Danielle; Nairn, Christa; Ourn, Felicia; Schwartz-Fernandes, Francisco A.

doi:10.1177/1558944719880026

Cited by 2 publications

(2 citation statements)

References 20 publications

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“…►Tables 5 and 6 compare our study's results with findings from other studies [7][8][9][10] in the literature.…”

Section: Intramedullary Diametersupporting

confidence: 63%

Indian Hand Anthropometry: Computer Tomography-Based Morphometric Analysis of Metacarpal

Reddy,

G.,

Kumar

et al. 2024

Indian J Plast Surg

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Introduction Metacarpal fractures are common and have various treatment options, but understanding their morphometry is crucial for optimizing fixation techniques and reducing complications. Accurate assessment of metacarpal anatomy is challenging in conventional radiographs but feasible with computed tomography (CT) scans, which offer precise views. This study aimed to provide accurate anatomical data on metacarpals within an Indian population using CT scans and to compare the results with existing literature. The findings have implications for surgical procedures, including plating, pinning, and intramedullary screw fixation. Materials and Methods This retrospective analysis utilized CT scans of 100 hands, including 50 males and 50 females, from two hospitals in India. Inclusion criteria included complete metacarpal visualization with a slice thickness of 0.6 mm, while exclusion criteria involved trauma, deformity, or underlying pathologies. Various parameters of all metacarpals were measured using RadiAnt DICOM Viewer 2021.1, providing accurate anteroposterior and lateral views. Results Male and female cohorts had mean ages of 38.58 ± 12.02 and 43.60 ± 13.61 years, respectively. The study showed good to excellent reliability in measurements. The 2nd metacarpal was consistently the longest, and the general length pattern was 3rd > 4th > 5th > 1st metacarpal in both genders. Men generally had larger metacarpal dimensions than women, except for intramedullary diameter, which showed minimal sex-related differences. Notably, the medullary cavity's narrowest part was at the 4th metacarpal, and the thumb had the widest intramedullary diameter. Conclusion This study provides valuable anatomical reference data for metacarpals in an Indian population, aiding in optimizing surgical techniques for metacarpal fractures. The 2nd metacarpal consistently stood out as the longest, and men generally had larger metacarpal dimensions than women. These insights into anatomical variations can inform clinical decisions and stimulate further research in this field. However, a larger and more diverse sample would enhance the study's representativeness.

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“…►Tables 5 and 6 compare our study's results with findings from other studies [7][8][9][10] in the literature.…”

Section: Intramedullary Diametersupporting

confidence: 63%

Indian Hand Anthropometry: Computer Tomography-Based Morphometric Analysis of Metacarpal

Reddy,

G.,

Kumar

et al. 2024

Indian J Plast Surg

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“…Patient demographics including age at imaging, sex, hand that was used for imaging, and height were also collected through chart review. Using the results of a previously IRB Exempted study on metacarpal analysis through cadavers, a power analysis of 0.8 would result in an estimated study population size of 140 hands (Sephien et al, 2019). Thus, total requirements were 560 metacarpals, with 17 hands analyzed in each age group (19-29, 30-59, 60-79, and 80-99).…”

Section: Inclusion Criteriamentioning

confidence: 99%

Morphometric analysis of the second through fifth metacarpal through posteroanterior X‐Rays

et al. 2019

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Over the past 10 years, metacarpal fractures have had an annual incidence of 13.6 per 10,000 individuals. Literature has not reviewed anatomical variations through radiographic imaging, which may play a role in reducing postoperative complications. The purpose of this study was to use radiographic imaging to provide a detailed anatomy of the second through fifth metacarpals. This retrospective study measured length, neck width, narrowest body width, and narrowest medullary canal width of the second through fifth metacarpals through the use of posteroanterior X‐rays. Patients who were ≥18 years and received hand radiographs from January 2015 to July 2019 were included in this study. Those with acute injury or fracture of the metacarpal were excluded. Five hundred and seventy‐two metacarpals were included in this study, with 143 metacarpals measured each for the second through fifth metacarpal. The second metacarpal had the largest measured length, neck width, and narrowest body width at 68.72, 12.34, and 8.74 mm, respectively. The fifth metacarpal had the greatest average medullary canal width at 4.15 mm. This is the largest study in literature to comprehensively examine the anatomical variation of the second through fifth metacarpals. The second metacarpal had greatest dimensions except for canal width, which was the fifth metacarpal. Men almost consistently had greater metacarpal size when compared to women, and age was associated with second and third metacarpal canal width. The increased knowledge of metacarpal anatomy may potentially lay the foundation of further improvement of metacarpal implants and potentially reduce postoperative complications. Clin. Anat., 33:1014–1018, 2020. © 2019 Wiley Periodicals, Inc.

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Inter-relationships of Metacarpals 1 to 5, Regarding Their Length, Metaphyseal Midshaft Width, Articular Surface Area of Head and Base, Age, and Sex: A Cadaveric Study

Cited by 2 publications

References 20 publications

Indian Hand Anthropometry: Computer Tomography-Based Morphometric Analysis of Metacarpal

Indian Hand Anthropometry: Computer Tomography-Based Morphometric Analysis of Metacarpal

Morphometric analysis of the second through fifth metacarpal through posteroanterior X‐Rays

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