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Radiolunate arthrodesis.

R L Linscheid, J H Dobyns

    The Journal of Hand Surgery
    |November 1, 1985
    PubMed
    Summary
    This summary is machine-generated.

    Radiolunate arthrodesis effectively treats wrist instability and pain, offering satisfactory function and improved grip strength. This surgical procedure corrects carpal deformities, preventing further degeneration and maintaining wrist position.

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    Area of Science:

    • Orthopedic Surgery
    • Hand and Wrist Surgery
    • Rheumatology

    Background:

    • Spontaneous radiolunate arthrodesis indicates potential for satisfactory wrist function.
    • Ulnar translation can result from dorsal ulnar head dislocation, ulna minus variance, and triangular fibrocartilage damage, leading to finger ulnar deviation and carpal disintegration.

    Purpose of the Study:

    • To evaluate the efficacy of radiolunate arthrodesis in managing wrist instability and pain.
    • To assess functional outcomes and patient satisfaction following the procedure.

    Main Methods:

    • Twenty-two radiolunate arthrodeses were performed: 16 using corticocancellous slotted grafts and six via a modified Lauenstein procedure.
    • The study included 17 patients with rheumatoid arthritis and five with traumatic injuries.

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  • Nineteen wrists were followed up for an average of 28 months.

    • Main Results:

    • Average range of motion: 25° extension, 30° flexion, 5° radial deviation, 15° ulnar deviation.
    • Subjective evaluations were good in 14 wrists, fair in three, and poor in two.
    • Pain relief was generally satisfactory, with a slight improvement in grip strength.

    Conclusions:

    • Radiolunate arthrodesis is effective in correcting carpal ulnar translation, midcarpal angulation, and radial angulation.
    • The procedure offers partial correction of carpal height loss and minimal progressive midcarpal joint degeneration.
    • The wrist remains in a satisfactory position, even with further spontaneous arthrodesis.