Anatomical and radiological study applied to distal radius surgery

Although there was no complete congruency between the plates and the radial cortex, all distal palmar radius plates investigated in this study presented a reasonable anatomical shape. The Synthes VA-LCP distal two-column-radius plate palmar showed the best anatomical fit. A low profile and optimized anatomical precontouring minimizes irritation of the surrounding soft tissues and should be considered with plate design and implant choice.

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“…The mean angle of the lateral column was 24.7 and 35.1°that of the medial column [33]. These findings were confirmed by Evans et al [34].…”

Section: Discussionsupporting

confidence: 55%

Anatomical fit of seven different palmar distal radius plates

Oppermann

Wacker

Stein

et al. 2014

Arch Orthop Trauma Surg

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“…(11) The authors also highlighted that in 63% of the radii, the arc flattens towards the radial side. This interesting finding was also observed in a study by Gasse et al (12) In that study, the authors measured the volar metaphyseal-epiphyseal angles of the lateral and intermediate columns on sagittal CT images of the distal radius and found a statistically significant difference between the two slopes. Similarly, a statistically significant difference between the arc radii of the distal radius on the radial and ulnar aspects was found in the present study.…”

Section: Discussionsupporting

confidence: 67%

“…This is because different research methodologies and measurement units were used. Pichler et al (11) used circular profile gauges of different radii, while Gasse et al (12) used the angle point at the site of maximal curvature after the tangent to the metaphysis and the epiphysis was drawn. In these two studies, the authors acknowledged that their measurements were just approximations, as they were measuring curves and not precise angles.…”

Section: Discussionmentioning

confidence: 99%

“…(11,12) Such variations may, directly or indirectly, influence the outcome of osteosynthesis for distal radius fractures that uses the current generation of uniformly prebent, fixed-angle volar plates. Hence, it is essential to gather information on these morphological variations in the distal radius to broaden our understanding of volar plate osteosynthesis.…”

Section: Introductionmentioning

confidence: 99%

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Morphology of distal radius curvatures: a CT-based study on the Malaysian Malay population

Singh

Sadagatullah

Yusof

2015

smedj

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INTRODUCTIONThe purpose of this study was to examine the differing curves of the volar distal radius of healthy Malaysian Malays, so as to obtain detailed morphological information that will further the understanding of volar plate osteosynthesis in Malaysian Malays. METHODSComputed tomography with three-dimensional reconstruction was performed on the wrists of 16 healthy Malaysian Malay volunteers. Profile measurements were made using a software program. A novel parameter, the pronator quadratus curve angle, was explored and introduced in this study. Interclass correlation coefficients were calculated to assess the level of agreement between the data collected by the principal investigator and that collected by an independent radiologist. RESULTSThe mean ± standard deviation of the arc radii on the radial aspect was 17.50° ± 5.40°, while the median (interquartile range [IQR]) of the arc radii on the ulnar aspect was 25.27° (IQR 5.80°). The mean ± standard deviation of the curvature of the pronator quadratus line was 40.52° ± 2.48°. The arc radii on the radial aspect was significantly lower than the arc radii on the ulnar aspect (p = 0.001). Different radial and ulnar arcs were observed in 56.25% of the radii; the arc was deeper on the ulnar aspect in 93.75% of the radii.CONCLUSION Based on the findings of this study, the likelihood of achieving anatomical reduction with uniformly curved, fixed-angle volar plates is questionable. Changes in the design of these implants may be needed to optimise their usage in the Malaysian Malay population.

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“…Par ailleurs, la styloïde n'est pas dans le plan de l'épiphyse, dont la face antérieure s'étend plus en ulnaire qu'en radial ( Fig. 3 [16].…”

Section: Introductionunclassified