1,721,370 research outputs found
Erratum: Identification of the goat CSN1S1F allele by means of PCR-RFLP method (Animal Genetics (2000) 31 (342))
No full textErratum
Ramunno L., Cosenza G., Pappalardo M., Pastore N., Gallo D., Di Gregorio P. & Masina P. (2000) Identi®cation of
the goat CSN1S1F allele by means of PCR-RFLP method. Animal Genetics 31, 34
Free Vascularized Toe Joint Transfer to the Metacarpal phalangeal Joint: new surgical techniques to improve the functional outcome
Full text linkFree Vascularized Toe Joint Transfer to the Metacarpal phalangeal Joint: new surgical
techniques to improve the functional outcome.
Objectve: Reconstruction of dysfunctional or painful damaged metacarpophalangeal joints (MCPJs)
is challenging. The current treatment of choice remains controversial, including arthrodesis, implant
arthroplasty or vascularized joint transfer (VJT). Although previous studies showed that implant
arthroplasty provide superior range of motion (ROM) than VJTs, in young or high-demand patients
for whom either potential growth or maintenance of a good ROM is required, VJTs provide a good
solution to their needs. Furthermore in case of tendon and skin defects, VJTs can also provide specific
soft tissue replacement, in a one-stage procedure. Since the toe metacarpal phalangeal joint (MTPJ)
and finger MCPJ have similar anatomical structure, vascularized MTPJ transfer is an ideal transplant
for reconstructing the damaged MCPJ, except for having dorsal extension as its main function. The
aim of this study, is to provide new anatomical knowledge and reconstructive techniques in a clinical
series for the reconstruction of the MCPJ using toe joint transfers.
Methods: Nine patents (eight male and one female) with ankylosed MCPJ underwent reconstruction
with vascularized second-toe MTPJ transfer over a five-year period. All cases suffered from posttraumatic arthritis. The average age of the patients was 42.3 years. The follow-up period ranged from
8 to 37.5 months and outcomes were assessed by grip strength and ROM of the reconstructed joints.
Results: All of the joints survived without any microvascular compromise. At an average period of
4.5 weeks bony union was achieved in all patients. Constant and sizable articular branch originated
from the first plantar metatarsal artery was intentionally included to achieve reliable blood supply to
the MTPJ. Indeed, to overcome the problem of excessive dorsal extension of MTPJs in four cases we
adopted the Turnover Technique in which the joint is turned upside-down around its longitudinal axis
and in two MTPJ we used the 45o Oblique Osteotomy technique of the metatarsal head. In addition,
in two cases an innovative modification of the skin paddle design was performed. A fillet flap from
the same toe based on the distal run off of the tibial plantar digital artery provided additional skin for
coverage the neo-MCPJ. No evidence of postoperative arthritis was noted and a total ROM of 57.8o
(mean flexion, 72.2o
) was achieved over the follow-up period
Conclusion: Vascularized second-toe MTPJ allows for restoration of powerful pinch/grasp and ROM
of a MCPJ in the hand. Improvement of the surgical techniques can result in very favorable functional
outcomes enabling more patients to benefit from VJTs
A Modified Delta-Inset Anterolateral Thigh Flap for Reconstruction of Circumferential Pharyngoesophageal Defects: Comparison Regarding Postoperative Complications Among Three Different Flap design”
No full textFree Vascularized Metatarsophalangeal Joint for Reconstruction of the Post-Traumatic Metacarpophalangeal Joint with Concomitant Soft-Tissue Defect: Strategies to Improve Outcomes
No full textModified Lymphoscintigraphy Staging as a Tool for Assessment of Lymphatic Obstruction in Lymphedema Patients and Correlation with Clinical Findings
No full textAbstract: The Submental Versus Groin Vascularized Lymph Node Transfer Flaps: A Head-to-Head Comparison of Surgical Outcomes for Breast Cancer Related Lymphedema. Plast Reconstr Surg Glob Open.
No full textA New Lymphoscintigraphy Staging for Unilateral Extremity Lymphedema Validation and Correlation between Nuclear Images and Clinical Findings.
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Testing a methodology to assess fluctuations of coastal rocks surface temperature
No full textThe aim of this work is testing a cheap and user-friendly methodology suitable for studying temperature fluctuations of coastal rocks' surfaces. An infrared thermometer was used, that permits a contactless measurement of the average surface temperature of a patch around a measuring point. Temperature was measured in an array of selected plots every 45 min from dawn to sunset in a 20 m2 study area along the rocky coast of Calafuria (NW Italy). During the experiment daily temperature in all plots was minimum at dawn and quickly reached its peak value shortly after sun culmination; subsequently, it underwent a small-gradient decrease until sunset. In connection with temporary sun-shading and wind gusts relevant short-term rock surface temperature fluctuations were recorded. Considering mean daily temperature in each plot, it proved to be positively correlated with distance from the shoreline. As regards daily temperature range, its amplitude progressively increased moving farther from the shoreline. The measuring points located where the rock is extensively covered by barnacles experience a temperature magnification effect, possibly due to a micro-greenhouse effect triggered by the production of carbon dioxide by this biota. The entity of measured daily temperature fluctuations is ca. one order of magnitude greater than air temperature fluctuations measured at the same elevation in the closest meteorological station. The results of this work highlight that the infrared thermometer is an effective tool to measure rock surface temperature along rocky coasts, capable of detecting temperature fluctuations more effectively than traditionally employed data loggers. Moreover, this work emphasizes the relevance of temporary sun-shading and wind gusts in triggering short-term rock surface temperature fluctuations, potentially capable of enhancing thermal fatigue and foster surface rock breakdown
Optimality conditions for vector variational inequalities via image space analysis
No full textIn this paper, we outline the main features of the image space analysis for vector variational inequalities with cone constraints. Exploiting a suitable separation scheme in the associated image space, we derive saddle point and Karush-Kuhn-Tucker type optimality conditions for the given vector variational inequality
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