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Item A Dual-Pivot Pattern Simulating Native Knee Kinematics Optimizes Functional Outcomes After Total Knee Arthroplasty(Elsevier, 2017) Meneghini, R. Michael; Deckard, Evan R.; Ishmael, Marshall K.; Ziemba-Davis, Mary; Department of Orthopaedic Surgery, IU School of MedicineBackground Kinematics after total knee arthroplasty (TKA) have been studied for decades; however, few studies have correlated kinematic patterns to patient reported outcomes. The purpose of this study was to determine if a pattern of lateral pivot motion in early flexion and medial pivot motion in high flexion, simulating native knee kinematics, produces superior clinical outcomes. A second study objective was to determine if a specific kinematic pattern throughout the various ranges of flexion produces superior function and patient satisfaction. Methods 120 consecutive TKAs were performed using sensor embedded tibial trials to record intraoperative knee kinematics through the full range of motion. Established criteria were used to identify lateral (L) or medial (M) pivot kinematic patterns based on the center of rotation within three flexion zones -- 0 to 45° (early flexion), 45 to 90° (mid flexion) and 90° to terminal flexion (late flexion). Knee Society Scores, pain scores, and patient satisfaction were analysed in relationship to kinematic patterns. Results Knee Society function scores were significantly higher in TKAs with early lateral pivot/late medial pivot intraoperative kinematics compared to all other kinematic patterns (p = 0.018) at minimum one-year follow-up. There was a greater decrease in the proportion of patients with early lateral/late medial pivot kinematics who reported that their knee never feels normal (p = 0.011). Higher mean function scores at minimum one-year follow-up (p < 0.001) and improvement from preoperative baseline (p = 0.008) were observed in patients with the most ideal “LLM” kinematic pattern (lateral pivot 0 to 45o and 45 to 90o; medial pivot beyond 90o) compared to those with the least ideal “MLL” kinematic pattern. All patients with the optimal “LLM” kinematic pattern compared to none of those with the “MLL” kinematic pattern reported that they were very satisfied with their TKA (p = 0.003). Conclusion Patients who exhibited an early flexion lateral pivot kinematic pattern accompanied by medial pivot motion in later flexion, as measured intraoperatively, reported higher functional outcome scores along with higher overall patient satisfaction. Replicating the dual-pivot kinematic pattern observed in native knees may improve function and satisfaction after TKA. Further study is warranted to explore a correlation with in-vivo kinematic patterns.Item Health-related Quality of Life in a Prospective Study of Ultrasound to Detect Cystic Fibrosis-related Liver Disease in Children(Wiley, 2022-09-06) Schwarzenberg, Sarah Jane; Palermo, Joseph J.; Ye, Wen; Huang, Suiyuan; Magee, John C.; Alazraki, Adina; Freeman, A. Jay; Harned, Roger; Karmazyn, Boaz; Karnsakul, Wikrom; Leung, Daniel H.; Ling, Simon C.; Masand, Prakash; Molleston, Jean P.; Murray, Karen F.; Navarro, Oscar M.; Nicholas, Jennifer L.; Otto, Randolph K.; Paranjape, Shruti M.; Siegel , Marilyn J.; Stoll, Janis; Towbin, Alexander J.; Narkewicz, Michael R.; Alonso, Estella M.; Pediatrics, School of MedicineBackground: Cystic fibrosis-related liver disease (CFLD) begins early in life. Symptoms may be vague, mild or nonexistent. Progressive liver injury may be associated with decrements in patient health before liver disease is clinically apparent. We examined Health-Related Quality of Life (HRQOL) in children enrolled in a multi-center study of cystic fibrosis-related liver disease (CFLD) to determine the impact of early CFLD on general and disease-specific QOL. Methods: US patterns of normal (NL), heterogeneous (HTG), homogeneous (HMG), or nodular (NOD) were assigned in a prospective manner to predict those at risk for advanced CFLD. Parents were informed of results. We assessed parent/child-reported (age≥5 y) HRQOL by PedsQL 4.0 Generic Core and CF Questionnaire-revised (CFQ-R) prior to US and annually. HRQOL scores were compared by US pattern at baseline (prior to US), between baseline and 1-year and at 5 years. Multivariate analysis of variance (MANOVA) with Hotelling-Lawley trace tested for differences among US groups. Results: Prior to US, among 515 participants and their parents there was no evidence that HTG or NOD US was associated with reduced PedsQL/CFQ-R at baseline. Parents of NOD reported no change in PedsQL/CFQ-R over the next year. Child-report PedsQL/CFQ-R (95 NL, 20 NOD) showed improvement between baseline and year 5 for many scales, including Physical Function. Parents of HMG children reported improved CFQ-R scores related to weight. Conclusions: Early undiagnosed or pre-symptomatic liver disease had no impact on generic or disease-specific HRQoL, and HRQoL was remarkably stable in children with CF regardless of liver involvement.Item Is Manipulation Under Anesthesia Effective in Improving Patient Reported Outcomes After Total Knee Arthroplasty? A Matched Cohort Analysis.(2019-12) Ciesielski, Alex; Holder, Erik; Deckard, Evan; Ziemba-Davis, Mary; Meneghini, R MichaelIntroduction: Manipulation under anesthesia (MUA) after total knee arthroplasty (TKA) is considered effective for postoperative stiffness, but strong scientific justification is lacking. This study compared outcomes in two matched cohorts: patients who met criteria and underwent MUA and patients who met criteria but did not undergo MUA. Methods: MUA (experimental) cases had ≤ 90° flexion 4-weeks postoperatively and underwent MUA surgery within 12 weeks of the index TKA. Control cases had ≤ 90° flexion 4-weeks postoperatively and did not undergo MUA. The latter group was alternatively treated with aggressive flexion exercises, frequent follow-up, and pain control modalities per surgeon discretion. 42 MUAs performed by three surgeons between 2011 and 2017 at the same center using the same standardized clinical and rehabilitation protocols were retrospectively reviewed. Six MUAs were excluded for potential confounds. The remaining 36 MUA cases were matched one-to one on sex (p= 1.00), age (p=0.893), race (p=0.938), BMI (p=0.069), and implant manufacturer (p= 1.00) to 36 control cases. Outcome variables included amount of improvement in flexion from preoperative baseline to latest follow-up and standardized PROMS. Covariates potentially affecting outcomes were taken into account. Results: Overall MUA incidence during the time period was 1.9%. Experimental and control groups did not differ on preoperative fibromyalgia, depression, and narcotic use; or intraoperative analgesia (p≥0.084). Four control patients and no experimental patients had inflammatory disease (p=0.054), and six of the former compared to none of the latter had lumbar spine pain or disease (p=0.025). Flexion data are provided in Table 1. Mean pre-primary TKA flexion was significantly greater in experimental patients (112.4 vs. 98.6°, p=0.002). On average, between pre-primary surgery and latest follow-up, experimental patients lost 10.7° of flexion compared to a gain of 12.7° by control patients (p<0.001). Pre-primary to latest follow-up improvement in pain walking on level ground (-3.3 and -4.7 points, p=0.190) and climbing stairs (-3.7 vs. -5.1, p=0.192) did not significantly differ between experimental and control patients respectively. As shown in Figure 1, prior to primary surgery experimental and control patients had similar activity levels (p=0.624). At latest follow-up, however, control patients were significantly more active than experimental patients (Figure 1, p=0.009). Figure 2 shows the proportions of patients in each group who reported their knee never feels normal prior to primary surgery (p=0.580) and at latest follow-up (p=0.0004). Surgery significantly improved this metric for control but not experimental patients. At latest follow-up 88.6% of control patients and 50% of experimental patients were satisfied or very satisfied with their knee surgery (p=0.001). Conclusion: Patients with ≤ 90° flexion 4-weeks after TKA who underwent MUA had significantly worse flexion and PROM scores than matched control patients who did not undergo MUA. These findings question the effectiveness of MUA as a legitimate treatment for postoperative TKA stiffness.Item Is Operative Diagnosis for Aseptic Revision Total Hip Arthroplasty Related to Patient Reported Outcomes?(2018-07) Holder, Erik; Ciesielski, Alex; Ziemba-Davis, Mary; Meneghini, R. MichaelBackground and Hypothesis: Component loosening and instability are the leading causes of revision total hip arthroplasty (THA). The purpose of this study was to compare patient-reported outcomes after revision THA based on failure etiology. We hypothesized that outcomes would differ based on reason for revision. Project Methods: 187 consecutive revision THAs performed between 2010 and 2017 were retrospectively reviewed. Prospectively collected preoperative and minimum one-year Hip Disability and Osteoarthritis Outcome Score/HOOS Jr., UCLA Activity Level, WOMAC Index, and patient satisfaction were assessed based on failure etiology. Demographic variables and covariates were accounted for including sex, age, BMI, ASA classification, heart disease, lumbar spine pathology, narcotic use, fibromyalgia, depression, and autoimmune arthritis. Results: Latest UCLA activity level did not differ based on failure etiology (p=0.381). However, the degree of improvement in activity level was higher (p= 0.04) in patients revised for loosening, instability, and infection compared to ALTR and polyethylene wear. HOOS Jr (p=0.949) and WOMAC total (p=0.147) scores did not differ based on failure etiology at latest follow-up, although patients revised for loosening had greater WOMAC improvement compared to all other groups except polyethylene wear (p=0.016). Satisfaction did not vary based on failure etiology (p=0.365), and demographic and covariates were unrelated to outcomes (p³0.165). Conclusion and Potential Impact: We observed that patient-reported outcomes following revision THA vary based on revision reason and activity level improvement is mitigated patients revised for ALTR and poly wear. These findings may help surgeons and patients alike set expectations for recovery following revision THA.Item Plating versus Intramedullary Nailing of OTA/AO 43C1 and C2 Intra-articular Distal Tibia Fractures: A Propensity Score and Multivariate Analysis(Wolters Kluwer, 2024-01) Jang, Yohan; Wilson, Nathaniel; Jones, Jenna; Alchaide, Doriann; Szatkowski, Jan; Sorkin, Anthony; Slaven, James E.; Natoli, Roman; Orthopaedic Surgery, School of MedicineOBJECTIVE: To compare rates of reduction loss, nonunion, and infection in intra-articular distal tibia fractures (IADTF) treated with limited open reduction internal fixation and intramedullary nailing (IMN) as compared to open reduction internal fixation with plate and screws (plate fixation [PF]). METHODS: Design: Retrospective review. Setting: Level-I academic trauma center. Patient Selection Criteria: Patients age ≥ 18 with OTA/AO 43C1 and C2 IADTF treated with IMN or PF between 2013-2021. Outcome Measures and Comparisons: Loss of reduction, surgical site infection (SSI), nonunion, and patient-reported outcomes (PROs) were compared for IMN versus PF treatments. RESULTS: One hundred ten patients met the inclusion criteria (IMN 33 and PF 77). There was no loss of reduction found. Seventeen nonunions (15% overall; IMN 4/33 and PF 13/77) and 13 SSIs (12% overall; IMN 2/33 and PF11/77) were identified. Despite several risk factors being identified for nonunion and SSI in bivariate analysis, only open fracture remained significant as a risk factor for both nonunion (odds ratio 0.09 for closed fracture, 95% confidence interval, 0.02–0.56, P = 0.009) and SSI (odds ratio 0.07 for closed fracture, 95% confidence interval, 0.06–0.26, P = 0.012) in the multivariate model. Propensity scoring based on presurgical variables was significantly different between patients who received IMN versus PF (P = 0.03); however, logistic regression incorporating the propensity score revealed no significant association with nonunion and SSI. Adjusting for the propensity score, there remained no association comparing IMN versus PF with nonunion and SSI (P = 0.54 and P = 0.17, respectively). There was also no difference in PROs between IMN and PF (physical function: P = 0.25 and pain interference: P = 0.21). CONCLUSIONS: Overall nonunion and SSI prevalence was 15% and 12%, respectively, in operatively treated OTA/AO 43C1 and C2 IADTF. An open fracture was a significant risk factor for nonunion and SSI. Metaphyseal fixation through IMN or PF did not affect loss of reduction, nonunion, SSI, or PROs. LEVEL OF EVIDENCE: Therapeutic Level III. See Instructions for Authors for a complete description of levels of evidence.Item The Practical Matters of Including Patient Reported Outcomes in Pediatric Oncology Clinical Care(Wiley, 2021-09) Mueller, Emily L.; Pediatrics, School of Medicine