The Journal of arthroplasty
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Variability in morphologic features of the human lower extremity within and across populations has been reported, but limb asymmetry within individuals is often overlooked. For example, in 19 studies of version of the lower extremity in the literature, 6 document asymmetry in the population, but none of these reports document asymmetry in an individual. The aim of this study was to identify the (a)symmetry and quantify variability in the tibiae and femora of matched pairs of limbs. More specifically, using a computed tomography scan database tool, we (1) identified (a)symmetry between paired left and right legs for angulation, version, and alignment features and (2) calculated the percentage of paired limbs with >1° of (a)symmetry for each evaluated parameter. ⋯ This study disproves the hypothesis that human limbs are absolutely symmetric, confirming instead that there is asymmetry in version between left and right paired limbs. Surgeons strive for symmetry in lower extremity reconstruction, and they often compare side to side in outcome studies, believing that normal limbs are absolutely symmetric when this is not necessarily true. These assumptions concerning lower extremity symmetry need to be reassessed.
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The postacute care strategies after total joint arthroplasty, including the use of postacute rehabilitation centers and home therapy services are associated with different costs. Providers in bundled payment programs are incentivized to use the most cost-effective strategies while maintaining quality and value for patients. ⋯ The postdischarge period is a significant part of a bundled payment episode. To manage a successful bundled payment program in total joint arthroplasty, significant efforts to coordinate care during this episode are needed for patients to receive quality care that meets their expectations.