Implant Fracture after Long-Stemmed Cemented Hemiarthroplasty for Oncologic Indications

Maheshwari, Aditya V.; Gilbert, Corey; Noveau, Jenna; Pivec, Robert; Henshaw, Robert M.

doi:10.1615/jlongtermeffmedimplants.2014010812

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“…Peterson et al reported fair levels of function among 21 patients treated with long stem cemented hemiarthroplasty in 22 limbs for metastases 11 . However, Maheshwari et al reported 6.6% stem fracture rate among 61 long stem cemented hemiarthroplasty performed for oncologic indications 12 . The cost of long stem bipolar hemiarthroplasty in our setting is around USD 1,700.…”

Section: Discussionmentioning

confidence: 99%

Modified Unipolar Hemiarthroplasty for the Treatment of Metastatic Lesions of Proximal Femur with Pathological Fractures: Case Series of Six Patients

Lim¹,

Mat-Hassan²,

Awang³

et al. 2019

Malays Orthop J

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Introduction: Proximal femur resection and endoprosthetic reconstruction is the preferred treatment for extensive bony destruction and pathological fractures. Due to the relatively high cost of endoprosthesis, we adopted the modified unipolar hemiarthroplasty (MUH) for reconstruction when the mode of treatment was for palliation.Materials and Methods: This is a retrospective case study of six patients, who had bone and multi-organs metastases with extensive proximal femur involvement with pathologic fractures who underwent resection and MUH reconstruction during the period 2013 to 2017. All patients were classified as Group B / C based on Scandinavian Sarcoma Group survival scoring, with estimated survival of maximum six months. The basic MUH construct consisted of Austin-Moore prosthesis which was secured to a Küntscher nail using cerclage wire and cemented into the femoral canal. Subsequently, the whole length of the prosthesis which remained outside the canal was coated with cement.Results: The mean age was 61.8 years. The mean survival was 3.9 months, post-operation. There was no implant failure during patients’ life span; however, a third of the patients developed infection. Wheel chair ambulation was started immediately post-operation for all patients, and two patients progressed to walking frame ambulation. The total cost of each construct was below US$490 in comparison to long-stem hemiarthroplasty (roughly US$ 1700).Conclusion: Our aim was to alleviate pain, facilitate rehabilitation, ease nursing care and improve quality of life for metastatic bone disease patients until end of life. MUH for the treatment of pathological fracture in proximal femoral metastases is a feasible palliative surgical modality in resource-limited settings.

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Section: Discussionmentioning

confidence: 99%