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Successful results seen after TKA in patients with Blount disease, Blount-like deformity
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Researchers of this study found total knee arthroplasty can provide successful results for patients with Blount disease and noted surgeons should have a heightened awareness for posteromedial tibial bony defects during the procedure.
Researchers studied the outcomes of five consecutive patients who underwent total knee arthroplasty and had Blount disease or Blount-like deformity. There were eight total knee arthroplasties. Investigators reviewed patients’ radiographs and medical records for proximal tibia metaphyseal-diaphyseal angle measurements, descriptions of the surgical procedure and postoperative clinical notes. Patient information was confirmed through phone interviews. Investigators also recorded WOMAC and Knee Society scores.
Investigators noted all knees had substantial posteromedial tibial bony defects, and six knees needed extensive medial releases. Intramedullary tibial cutting edges were used in five knees, and tibial stems were used during the index procedure in three knees. At the index procedure, investigators found two knees needed a constrained prosthesis. No knees needed bone grafting or prosthetic augmentation during the index procedures, according to researchers.
At most recent follow-up, investigators found all knees were stable and deemed the range of motion as excellent. The mean WOMAC score was 13.5. The mean Knee Society score was 212.5. ‒ by Monica Jaramillo
Disclosures: Natoli reports no relevant financial disclosures. Please see the full study for a list of all other authors’ relevant financial disclosures.
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