Review Question - QID 5973

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TKA in Patella Baja (Prior HTO) QID: 5973 (SAE07HK.13)

QID 5973 (Type "5973" in App Search)

A 60-year-old patient had the procedure shown in Figure 7 performed 5 years ago. When converting this patient to a total knee arthroplasty (TKA), what patellar problem is commonly encountered intraoperatively?

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Fracture

17/1057

Patella baja

70%

739/1057

Patella alta

10%

109/1057

Osteonecrosis

9/1057

Maltracking

17%

178/1057

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Patella baja is commonly encountered when converting a high tibial osteotomy (HTO) to a TKA. Patella baja most likely occurs because of scarring. Meding and associates’ study did not show an increased rate of lateral release when converting a knee that had undergone a previous HTO.

Total knee arthroplasty after high tibial osteotomy. A comparison study in patients who had bilateral total knee replacement.

Recon
- TKA in Patella Baja (Prior HTO)

J B Meding, JBJS 2000

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