Patients have increasingly high expectations of return to activity following total hip arthroplasty (THA). The current literature demonstrates marked improvements in subjective patient-reported satisfaction, and pain and functional outcomes following THA. However, there is limited evidence showing objective improvement in gait and sleep measures. The purpose of this study was to compare accelerometry-measured physical activity and sleep to patient-reported outcomes following THA.A nonrandomized, prospective cohort study was performed at a single institution from 2017 to 2019. Patients were included in the study if they were ≥ 18 years old, had a primary diagnosis of osteoarthritis of the hip, and were undergoing primary, elective THA. Eligible patients received a tracker device upon enrollment which recorded the average number of daily steps and minutes slept at baseline, 1 to 2 weeks, 1 month, and 3 months postoperatively. Hip disability and osteoarthritis outcome score for joint replacement (HOOS Jr) scores were recorded at the same intervals. Paired two-tailed t-tests and chi-squared analyses were performed to compare means. Pearson correlation tests were utilized to determine the correlation between objective measurements and HOOS Jr.Fifty subjects were enrolled, however, only 41 had sufficient data for analysis at 3-month follow-up. Patients demonstrated improved HOOS Jr scores from preoperatively to 2 weeks (p < 0.001) and 3 months (p < 0.001) postoperatively. Average daily steps ambulated and minutes slept preoperatively were statistically similar to average daily steps and minutes slept 3 months postoperatively (p = 0.67 and p = 0.24, respectively). Pearson correlation models only detected a weak negative correlation between average steps preop and preop HOOS Jr (r = –0.401, p = 0.013).Patients returned to similar ambulation distances and sleep time by 3 months postoperatively. Changes in accelerometry-measured activity level and sleep may not correlate with functional outcomes in early follow-ups after THA. While patients report improvements in subjective clinical outcomes, our findings suggest a return to preoperative levels in objective measures at 3 months post-THA.
The use of intraoperative technology (IT), such as computer-assisted navigation (CAN) and robot-assisted surgery (RA), in total knee arthroplasty (TKA) is increasingly popular due to its ability to enhance surgical precision and reduce radiographic outliers. There is disputing evidence as to whether IT leads to better clinical outcomes and reduced postoperative pain. The purpose of this study was to determine if use of CAN or RA in TKA improves pain outcomes. This is a retrospective review of a multicenter randomized control trial of 327 primary TKAs. Demographics, surgical time, IT use (CAN/RA), length of stay (LOS), and opioid consumption (in morphine milligram equivalents) were collected. Analysis was done by comparing IT (n = 110) to a conventional TKA cohort (n = 217). When accounting for demographic differences and the use of a tourniquet, the IT cohort had shorter surgical time (88.77 ± 18.57 vs. 98.12 ± 22.53 minutes; p = 0.005). While postoperative day 1 pain scores were similar (p = 0.316), the IT cohort has less opioid consumption at 2 weeks (p = 0.006) and 1 month (p = 0.005) postoperatively, but not at 3 months (p = 0.058). When comparing different types of IT, CAN, and RA, we found that they had similar surgical times (p = 0.610) and pain scores (p = 0.813). Both cohorts had similar opioid consumption at 2 weeks (p = 0.092), 1 month (p = 0.058), and 3 months (p = 0.064) postoperatively. The use of IT in TKA does not yield a clinically significant reduction in pain outcomes. There was also no difference in pain or perioperative outcomes between CAN and RA technology used in TKA.
Hinged prostheses have been increasingly utilized in complex and revision total knee arthroplasty (TKA) cases requiring additional mechanical support and global stability. However, there is limited data detailing the outcomes of modern hinge designs in these procedures. The aim of this study is to report a minimum 2-year functional outcomes and survivorship of a novel-guided motion-hinged knee TKA system. A multicenter, retrospective cohort study was conducted on consecutive TKA patients between March 2013 and August 2017 with a novel-guided motion-hinged knee system. Demographics, change in range of motion (ΔROM), quality metrics, and implant survivorship were collected with a minimum of 2-year follow-up. Implant survival was analyzed by using the Kaplan–Meier method. Overall, 147 hinged knee cases (18 complex primaries and 129 revisions) were identified with an average follow-up duration of 3.8 ± 1.2 years. Patients presented with an average of 2.4 ± 1.6 prior knee surgeries, and 51 (34.7%) had a history of knee infections. The ROM improved postoperatively: Δ extension = 2 ± 1 degrees, Δflexion = 7 ± 3 degrees, Δtotal ROM = 9 ± 4 degrees. Kaplan–Meier survivorship analysis for implant revision at 2- and 5-year follow-up showed a survival rate of 100 and 98.5% (95% confidence interval: 94.3–99.6%), respectively, with one patient undergoing two-stage revision for infection and another undergoing femoral revision for aseptic loosening. Survivorship for aseptic all-cause reoperation at 2- and 5-year follow-up was 93.2% (87.7–96.3%) and 88.2% (80.0–93.2%), respectively. Fourteen patients underwent aseptic reoperation (patellar complications: n = 7 [4.8%]; instability: n = 5 [3.4%]; tuberosity fixation: n = 1 [0.7%]; extensor mechanism failure: n = 1 [1.1%]). Survivorship for all-cause reoperation at 2- and 5-year follow-up were 85% (78.2–90.0%) and 77.7% (68.8–84.3%), respectively. Fifteen patients underwent reoperation for infection (DAIR: n = 14 (9.5%); two-stage revision: n = 1 [0.7%]). Despite some reoperations, this guided-motion hinged-knee TKA system demonstrates excellent survivorship for component revision compared to other modern hinged knee implants reported in the literature. Patients also displayed an improvement in knee ROM at their latest follow-up.
Patient's perspectives and changes in symptoms after cancellation of their elective procedures due to the COVID-19 pandemic were analysed. Most patients experienced no change in symptoms, but women and black patients experienced adverse impacts at higher rates than other groups.
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