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Related Concept Videos

Bones of the Upper Limb: Radius01:09

Bones of the Upper Limb: Radius

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The radius is longer of the two bones that make up the human antebrachium or forearm. At the proximal end, the radius articulates with the capitulum of the humerus and the radial notch of the ulna to form the elbow joint. At the distal end, the radius articulates with the ulna via the ulnar notch, forming the distal radioulnar joint. Distally, the radius also attaches to the carpal wrist bones (scaphoid and lunate) to form the radiocarpal joint.
The radius has a nail-shaped head, and a...
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Spinal Nerves: Plexus I01:22

Spinal Nerves: Plexus I

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Nerve plexuses are networks of interlacing nerves that serve as communication hubs to distribute and organize nerve action across various body regions. The nerve plexuses are organized into the cervical plexus located in the neck region, brachial plexus in the shoulder area, lumbar plexus found in the lower back, sacral plexus situated in the pelvis, and coccygeal plexus located in the coccygeal region.
The Cervical Plexus
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Related Experiment Video

Updated: Jun 9, 2025

Vascularized Composite Hand Allograft Procurement and Preparation for Distal and Proximal Forearm Allotransplantation: A Stepwise Approach
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Reconstruction after proximal ulnar resection.

Ashwin Prajapati1, Rudra P S Thakur2, Ashish Gulia3

  • 1Department of Surgical Oncology, Marengo CIMS Cancer Centre, Ahmedabad, India.

The Bone & Joint Journal
|October 31, 2024
PubMed
Summary
This summary is machine-generated.

Radial neck to humeral trochlea transposition is a cost-effective option for proximal ulna tumor resection, offering good short-term elbow function. This biological reconstruction shows promise for long-term stability and durability.

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Area of Science:

  • Orthopedic Surgery
  • Musculoskeletal Oncology
  • Reconstructive Surgery

Background:

  • Reconstruction after proximal ulna osteoarticular resection for tumors presents significant technical challenges.
  • Limited literature exists on available reconstructive options for this complex procedure.

Purpose of the Study:

  • To evaluate the efficacy and outcomes of radial neck to humeral trochlea transposition arthroplasty.
  • To assess functional results following proximal ulna resection and reconstruction.

Main Methods:

  • A series of four patients underwent radial neck to humeral trochlea transposition arthroplasty.
  • Functional outcomes were assessed using elbow range of motion, forearm rotation, elbow stability, Musculoskeletal Tumor Society (MSTS) score, and Quick Disabilities of the Arm, Shoulder and Hand (QuickDASH-9) questionnaire.

Main Results:

  • At a mean follow-up of 33 months, all patients were disease-free with a mean elbow flexion arc of 0° to 105°.
  • Full supination was achieved in all patients, but no pronation was possible.
  • Complications included ulnar nerve neuropraxia, screw exposure, and wound dehiscence, with most resolving or managed successfully.

Conclusions:

  • Radial neck to humeral trochlea transposition is a satisfactory and cost-effective biological reconstruction for proximal ulna resection.
  • This technique provides good short-term elbow function and is anticipated to offer long-term stability and durability due to its biological nature.