Objective: The aim of this study is to present our clinical experience with rhomboid flaps.
Materials and Methods:Twenty-four patients who were operated on between January 2006 and October 2010 were included in the study. All defects were reconstructed using rhomboid flaps.
Results:Twenty-four patients were operated on for various reasons, and 26 rhomboid flaps were performed. Eleven of the 24 cases were male, and the median age of participants was 47.5 years. Eight cases were operated on under general anesthesia, and 13 were locally anesthetized; the remaining cases were operated on under regional anesthesia. In 17 cases, the defect was due to a benign or malignant tumor excision, and five cases were operated on due to burn contracture. There were no occurrences of partial or total flap necrosis or hematoma in our series.
Conclusion:Our series indicates that rhomboid flaps can be safely used to reconstruct small to moderately sized skin defects.
The management of soft-tissue defects in the ankle and foot area is a challenging task. Distally based sural flap is widely used, however it leaves donor area paresthesia. For this purpose, the sural nerve was dissected and preserved in the distally based sural flap in five cases of ankle and foot soft tissue reconstruction. This modification did not cause any compromise in flap circulation. All flaps survived with one partial distal necrosis. We suggest that, the distally based nerve sparing sural flap can be securely elevated with only a 3-4 cm wide subcutaneous pedicle without any compromise in flap circulation.
Sharing wireless channel resources among cellular network operators saves costs by efficiently utilizing hardware and spectrum. Following the approach of resource sharing, we introduce a general formulation that covers current fixed and dynamic approaches as special cases. Unlike previous approaches, our formulation maximizes spectral efficiency by occasionally penalizing an operator within defined boundaries. This interesting tradeoff between sharing guarantees and system performance is studied by simulation. Our results clarify the costs of fair sharing and how much spectral efficiency can be gained by relaxing fairness in a controlled manner. This study, thus, provides important insight into the efficient design of shared base stations in future cellular networks.
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