A Novel External Fixation Technique for Injuries of the Proximal Interphalangeal Joint.

Digital external fixation is often used for the management of complex injuries involving the proximal interphalangeal joint, including pilon fractures of the middle phalanx base and unstable fracture-dislocations. Several dynamic "homemade" constructs have been described which utilize only K-wires and rubber bands and allow early range of motion within the construct. Although these constructs are inexpensive and their application is fairly straightforward, their designs pose a few potential problems when the construct is stressed during rehabilitation efforts.

Biomechanical Comparison of Volar Fixed-Angle Locking Plates for AO C3 Distal Radius Fractures: Titanium Versus Stainless Steel With Compression.

Purpose: To determine biomechanical differences between a fixed-angle locking volar titanium plate (VariAx; Stryker, Kalamazoo, MI) and a fixed-angle compression locking volar stainless steel plate (CoverLoc Volar Plate; Tornier, Amsterdam, Netherlands) in the fixation of simulated AO C3 distal radius fractures.

Methods: Eighteen cadaveric upper extremities (9 matched pairs) with an average age of 54 years were tested. A 4-part AO C3 fracture pattern was created in each specimen.

Flexor tendon repair with a knotless, bidirectional barbed suture: an in vivo biomechanical analysis.

Purpose: To compare and analyze biomechanical properties and histological characteristics of flexor tendons either repaired by a 4-strand modified Kessler technique or using barbed suture with a knotless repair technique in an in vivo model.

Methods: A total of 25 chickens underwent surgical transection of the flexor digitorum profundus tendon followed by either a 4-strand Kessler repair or a knotless repair with barbed suture. Chickens were randomly assigned to 1 of 3 groups with various postoperative times to death.

Graphene oxide based magnetic nanocomposites for efficient treatment of breast cancer.

The present work reports a simple one step synthesis of nanoscale graphene oxide magnetic composites (GO-IO) using ferrofluid (GO-IOF). The obtained GO-IO were compared with GO-IO obtained from in situ (GO-IOI) methods. Anastrozole (ANS) was loaded on the GO-IOI and GO-IOF via simple stirring method to form GO-IOA and GO-IOFA respectively.

Pedicle and free flaps for painful nerve.

Treatment of the chronic painful nerve by pedicled or free tissue transfer is a complex surgical procedure, requiring specialized microsurgical training and technique. This procedure is indicated only in patients who have had repeated failure of simpler, conventional procedures. Patients with chronic painful peripheral nerves may be potentially salvaged by external neurolysis and circumferential wrapping of the involved segments of nerve with well-vascularized pedicled or free flaps of fascia, subcutaneous fatty tissue, omentum or muscle, or by the replacement of superficial hypersensitive cutaneous areas and nerves with the same tissues.