The Journal of arthroplasty
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Patellofemoral chondromalacia (PFCM) has historically been considered a contraindication for unicompartmental knee arthroplasty (UKA), but there is limited data assessing PFCM's impact on the results of fixed-bearing UKA. Our objective was to assess the impact of medial patellar and/or medial trochlear PFCM on overall and patellofemoral-specific 2-year outcomes after fixed-bearing medial UKA. ⋯ Functional outcomes of fixed-bearing medial UKA are not adversely impacted by the presence of PFCM involving the medial patellar facet and/or medial or central trochlea. Further follow-up is needed to determine longer-term implications of fixed-bearing medial UKA in patients with PFCM.
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Randomized Controlled Trial
Does Patient Perception Differ Following Adductor Canal Block and Femoral Nerve Block in Total Knee Arthroplasty? A Simultaneous Bilateral Randomized Study.
Femoral nerve block (FNB) has been used as part of the multimodal analgesia after total knee arthroplasty (TKA), but leads to weakness in the quadriceps muscles. Recently, adductor canal block (ACB) was reported to provide effective pain relief while sparing the strength of the quadriceps. This simultaneous bilateral randomized study investigated whether patients perceived differences between ACB and the FNB after same-day bilateral TKA. ⋯ This simultaneous bilateral randomized study demonstrates that patients did not perceive differences in pain level, but experienced substantial differences in quadriceps strength recovery between knees during the first 48 h (Identifier: NCT02513082).
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Randomized Controlled Trial
Effect of Periarticular Morphine Injection for Total Knee Arthroplasty: A Randomized, Double-Blind Trial.
The periarticular multimodal cocktail injection including morphine is currently commonly used to treat postoperative pain after total knee arthroplasty (TKA). Despite its analgesic effect, it is frequently reported to cause nausea and vomiting, which are adverse effects of opioids. This study aimed to assess the efficacy of morphine as a component of a multimodal cocktail injection for providing postoperative analgesia and alleviating swelling in patients who underwent TKA. ⋯ The results of this study suggested that addition of morphine to the multimodal cocktail injection is not effective for relieving postoperative pain, alleviating swelling, or improving range of motion, and results in nausea and vomiting.
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Poorly controlled postoperative pain may adversely affect total joint arthroplasty (TJA) patients' outcomes and associated healthcare cost. Understanding effective pain management after surgery is important to patients, surgeons, and hospitals. We evaluated patient-reported receipt of preoperative pain management information in a national prospective cohort evaluating postoperative pain and function following elective TJA. ⋯ Forty-four percent of the patients reported that they did not receive/received unhelpful information regarding postoperative pain management, highlighting a need for improved patient education. In this sample, the lack of pain management information was associated with poorer 6-month postoperative function.
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Comparative Study
Comparison of Outpatient vs Inpatient Total Knee Arthroplasty: An ACS-NSQIP Analysis.
There has been a recent surge of interest in performing primary total knee arthroplasty (TKA) in the outpatient setting to reduce cost and increase patient satisfaction. Detailed information on the safety of outpatient TKA in large sample sizes is scarce. ⋯ Based on the perioperative outcome measures studied here, outpatient TKA can be appropriately considered in select patients based on rates of overall perioperative adverse events and readmissions. However, higher surveillance of these patients postdischarge may be warranted.