Article entitled ¿unicompartmental knee arthroplasty vs total knee arthroplasty for medial compartment arthritis in patients older than 75 years: comparable reoperation, revision, and complication rates¿ written by homayoun siman, md, atul f.Kamath, md, nazly carrillo, md, william s.Harmsen, ms, mark w.Pagnano, md, and rafael j.Sierra, md published in the journal of arthoplasty on january 15, 2017 was reviewed.The aim of our study was to answer three questions - in patients aged 75 and older who have radiographic imaging consistent only with medial compartment arthritis undergoing either tka or uka, (1) ¿what are the complications associated with each procedure?¿ (2) ¿what are the reasons for implant revision?¿ and (3) ¿what are the clinical results and is there a difference in implant survivorship at midterm follow-up?¿ 188 knees were included in the tka group and 114 were implanted with the depuy sigma knee.The remaining patients had competitor products.120 knees were included within the uka and none of the knees were implanted with depuy implants.No mention of cement mfg or if the patella was resurfaced.Adverse events related to the tka cohort (not specific to the depuy sigma knee): 1 knee with deep venous thrombosis ¿ treatment not indicated, 4 knees with cardiovascular adverse events ¿ treatment not indicated, 2 knees with bone fractures ¿ location of fractures and treatment not indicated, 1 knee with wound dehiscence, 3 knees with superficial infections ¿ treatment not indicated, 2 knees with hematomas ¿ treatment not indicated, 3 knees with tendon/ligament damage ¿ treatment not indicated, 1 knee with instability ¿ treatment not indicated, 1 knee revision for implant loosening ¿ both components revised, 1 knee required i&d with poly exchange for deep infection, 2 knees with bone fractures requiring orif, 2 knees requiring manipulation under anesthesia for arthrofibrosis, 2 knees requiring arthroscopic debridement for patellar clunk syndrome.
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