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Related Experiment Videos

Total shoulder arthroplasty with the Neer prosthesis.

R H Cofield

    The Journal of Bone and Joint Surgery. American Volume
    |July 1, 1984
    PubMed
    Summary

    Total shoulder replacement with the Neer prosthesis offers significant pain relief and improved abduction for patients with arthritis or fractures. However, complications like glenoid loosening and radiolucency were observed in a notable percentage of cases.

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    Area of Science:

    • Orthopedic Surgery
    • Biomedical Engineering
    • Reconstructive Surgery

    Background:

    • Total shoulder arthroplasty (TSA) is a common procedure for debilitating shoulder conditions.
    • The Neer prosthesis is a widely used implant for TSA.
    • Long-term outcomes and complication rates of TSA require ongoing evaluation.

    Purpose of the Study:

    • To evaluate the clinical outcomes and radiographic findings of Neer total shoulder arthroplasty.
    • To assess the functional improvement and complication rates following TSA.
    • To identify factors influencing the success of Neer TSA.

    Main Methods:

    • Retrospective review of 73 Neer TSA procedures in 65 patients.
    • Follow-up period ranged from 2 to 6.5 years post-operation.
    • Evaluation included assessment of pain, active abduction, and radiographic analysis for loosening and radiolucency.

    Main Results:

    • Significant improvement in active abduction (average 44 degrees, reaching 120 degrees).
    • Most patients experienced minimal pain during vigorous activities.
    • Complications occurred in 13 shoulders, requiring 5 reoperations.
    • Radiographic loosening of the glenoid component was noted in 8 shoulders.
    • Radiolucency at the glenoid bone-cement junction was present in 52 shoulders.

    Conclusions:

    • Neer TSA provides substantial functional improvement and pain relief for various shoulder pathologies.
    • Rotator cuff integrity and preoperative diagnosis significantly impact abduction recovery.
    • A considerable rate of glenoid component loosening and radiolucency warrants attention and further investigation.

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