In this issue of Hand Clinics, guest editors Drs. Harvey Chim and Kevin Chung bring their considerable expertise to the topic of Advances in Microsurgical Reconstruction in the Upper Extremity. Top experts in the field discuss techniques, outcomes, and new developments such as perforator mapping, thin flaps, and functional muscle transfers, providing surgeons with expert guidance and resources in order to maximize function.

• Contains 14 relevant, practice-oriented topics including recent advances in upper extremity microsurgery: from traditional to perforator flaps; evolution and application of ultrasound for flap planning in upper extremity reconstruction; functional free muscle transfers for reconstruction of the paralytic limb; functional free muscle transfers for reconstruction of brachial plexus injuries; and more.
• Provides in-depth clinical reviews on advances in microsurgical reconstruction in the upper extremity, offering actionable insights for clinical practice.
• Presents the latest information on this timely, focused topic under the leadership of experienced editors in the field. Authors synthesize and distill the latest research and practice guidelines to create clinically significant, topic-based reviews.

Recent Advances in Upper Extremity Microsurgery: From Traditional to Perforator Flaps
Evolution and Application of Ultrasound for Flap Planning in Upper Extremity Reconstruction
Superficial Circumflex Iliac Artery Perforator Flap Reconstruction of the Upper Extremity
Thin Profunda Artery Perforator Flap for Hand and Upper Extremity Coverage
Thin and Thinned Anterolateral Thigh Flaps for Upper Extremity Reconstruction
Evolution and Diversity of Medial Sural Artery Perforator Flap for Hand Reconstruction
The Role of Microsurgery in Coverage of Defects of the Hand
Microsurgical Treatment for Arteriovenous Malformations in the Hand
Advances in Pediatric Toe Transfers
The Foot as a Donor Site for Reconstruction in the Hand
Functional Free Muscle Transfer for Reconstruction of Traumatic Adult Brachial Plexus Injuries
Functioning Free Muscle Transplantation to Restore Finger Movement for Sequalae of Volkmann Ischemic Contracture
Surgical Treatment of Lymphedema in the Upper Extremity
Alternative Flap Options for Upper Extremity Reconstruction
Simultaneous or Delayed Free Tissue Transfer in Combination with Replantation Surgery