Browsing by Author "Virkus, Walter W."

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    Correction to: Cluster identification, selection, and description in Cluster randomized crossover trials: the PREP-IT trials
    (BioMed Central, 2020-09-30) Sprague, Sheila; Scott, Taryn; Dodds, Shannon; Pogorzelski, David; McKay, Paula; Harris, Anthony D.; Wood, Amber; Thabane, Lehana; Bhandari, Mohit; Mehta, Samir; Gaski, Greg; Boulton, Christina; Marcano-Fernández, Francesc; Guerra-Farfán, Ernesto; Hebden, Joan; O’Hara, Lyndsay M.; Slobogean, Gerard P.; Slobogean, Gerard P.; Sprague, Sheila; Wells, Jeffrey; Bhandari, Mohit; D’Alleyrand, Jean-Claude; Harris, Anthony D.; Mullins, Daniel C.; Thabane, Lehana; Wood, Amber; Della Rocca, Gregory J.; Hebden, Joan; Jeray, Kyle J.; Marchand, Lucas; O’Hara, Lyndsay M.; Zura, Robert; Gardner, Michael J.; Blasman, Jenna; Davies, Jonah; Liang, Stephen; Taljaard, Monica; Devereaux, P. J.; Guyatt, Gordon H.; Heels-Ansdell, Diane; Marvel, Debra; Palmer, Jana; Friedrich, Jeff; O’Hara, Nathan N.; Grissom, Frances; Gitajn, I. Leah; Morshed, Saam; O’Toole, Robert V.; Petrisor, Bradley A.; Camara, Megan; Mossuto, Franca; Joshi, Manjari G.; Fowler, Justin; Rivera, Jessica; Talbot, Max; Dodds, Shannon; Garibaldi, Alisha; Li, Silvia; Nguyen, Uyen; Pogorzelski, David; Rojas, Alejandra; Scott, Taryn; Del Fabbro, Gina; Szasz, Olivia Paige; McKay, Paula; Howe, Andrea; Rudnicki, Joshua; Demyanovich, Haley; Little, Kelly; Mullins, C. Daniel; Medeiros, Michelle; Kettering, Eric; Hale, Diamond; Eglseder, Andrew; Johnson, Aaron; Langhammer, Christopher; Lebrun, Christopher; Manson, Theodore; Nascone, Jason; Paryavi, Ebrahim; Pensy, Raymond; Pollak, Andrew; Sciadini, Marcus; Degani, Yasmin; Demyanovich, Haley K.; Joseph, Katherine; Petrisor, Brad A.; Johal, Herman; Ristevski, Bill; Williams, Dale; Denkers, Matthew; Rajaratnam, Krishan; Al-Asiri, Jamal; Leonard, Jordan; Marcano-Fernández, Francesc A.; Gallant, Jodi; Persico, Federico; Gjorgjievski, Marko; George, Annie; Natoli, Roman M.; Gaski, Greg E.; McKinley, Todd O.; Virkus, Walter W.; Sorkin, Anthony T.; Szatkowski, Jan P.; Baele, Joseph R.; Mullis, Brian H.; Hill, Lauren C.; Hudgins, Andrea; Osborn, Patrick; Pierrie, Sarah; Martinez, Eric; Kimmel, Joseph; Adams, John D.; Beckish, Michael L.; Bray, Christopher C.; Brown, Timothy R.; Cross, Andrew W.; Dew, Timothy; Faucher, Gregory K.; Gurich, Richard W.; Lazarus, David E.; Millon, S. John; Palmer, M. Jason; Porter, Scott E.; Schaller, Thomas M.; Sridhar, Michael S.; Sanders, John L.; Rudisill, L. Edwin; Garitty, Michael J.; Poole, Andrew S.; Sims, Michael L.; Walker, Clark M.; Carlisle, Robert M.; Hofer, Erin Adams; Huggins, Brandon S.; Hunter, Michael D.; Marshall, William A.; Ray, Shea Bielby; Smith, Cory D.; Altman, Kyle M.; Bedard, Julia C.; Loeffler, Markus F.; Pichiotino, Erin R.; Cole, Austin A.; Maltz, Ethan J.; Parker, Wesley; Ramsey, T. Bennett; Burnikel, Alex; Colello, Michael; Stewart, Russell; Wise, Jeremy; Moody, M. Christian; Tanner, Stephanie L.; Snider, Rebecca G.; Townsend, Christine E.; Pham, Kayla H.; Martin, Abigail; Robertson, Emily; Miclau, Theodore; Kandemir, Utku; Marmor, Meir; Matityahu, Amir; McClellan, R. Trigg; Meinberg, Eric; Shearer, David; Toogood, Paul; Ding, Anthony; Donohue, Erin; Belaye, Tigist; Berhaneselase, Eleni; Paul, Alexandra; Garg, Kartik; Gary, Joshua L.; Warner, Stephen J.; Munz, John W.; Choo, Andrew M.; Achor, Timothy S.; Routt, Milton L. “ Chip”; Rao, Mayank; Pechero, Guillermo; Miller, Adam; Hagen, Jennifer E.; Patrick, Matthew; Vlasak, Richard; Krupko, Thomas; Sadasivan, Kalia; Koenig, Chris; Bailey, Daniel; Wentworth, Daniel; Van, Chi; Schwartz, Justin; Dehghan, Niloofar; Jones, Clifford B.; Watson, J. Tracy; McKee, Michael; Karim, Ammar; Talerico, Michael; Sietsema, Debra L.; Williams, Alyse; Dykes, Tayler; Obremskey, William T.; Jahangir, Amir Alex; Sethi, Manish; Boyce, Robert; Stinner, Daniel J.; Mitchell, Phillip; Trochez, Karen; Rodriguez, Andres; Gajari, Vamshi; Rodriguez, Elsa; Pritchett, Charles; Boulton, Christina; Lowe, Jason; Wild, Jason; Ruth, John T.; Taylor, Michel; Seach, Andrea; Saeed, Sabina; Culbert, Hunter; Cruz, Alejandro; Knapp, Thomas; Hurkett, Colin; Lowney, Maya; Prayson, Michael; Venkatarayappa, Indresh; Horne, Brandon; Jerele, Jennifer; Clark, Linda; Marcano-Fernández, Francesc; Jornet-Gibert, Montsant; Martínez-Carreres, Laia; Martí-Garín, David; Serrano-Sanz, Jorge; Sánchez-Fernández, Joel; Sanz-Molero, Matsuyama; Carballo, Alejandro; Pelfort, Xavier; Acerboni-Flores, Francesc; Alavedra-Massana, Anna; Anglada-Torres, Neus; Berenguer, Alexandre; Cámara-Cabrera, Jaume; Caparros-García, Ariadna; Fillat-Gomà, Ferran; Fuentes-López, Ruben; Garcia-Rodriguez, Ramona; Gimeno-Calavia, Nuria; Graells-Alonso, Guillem; Martínez-Álvarez, Marta; Martínez-Grau, Patricia; Pellejero-García, Raúl; Ràfols-Perramon, Ona; Peñalver, Juan Manuel; Domènech, Mònica Salomó; Soler-Cano, Albert; Velasco-Barrera, Aldo; Yela-Verdú, Christian; Bueno-Ruiz, Mercedes; Sánchez-Palomino, Estrella; Guerra-Farfán, Ernesto; García, Yaiza; Romeo, Nicholas M.; Vallier, Heather A.; Breslin, Mary A.; Fraifogl, Joanne; Wilson, Eleanor S.; Wadenpfuhl, Leanne K.; Halliday, Paul G.; Viskontas, Darius G.; Apostle, Kelly L.; Boyer, Dory S.; Moola, Farhad O.; Perey, Bertrand H.; Stone, Trevor B.; Lemke, H. Michael; Zomar, Mauri; Spicer, Ella; Fan, Chen “Brenda”; Payne, Kyrsten; Phelps, Kevin; Bosse, Michael; Karunakar, Madhav; Kempton, Laurence; Sims, Stephen; Hsu, Joseph; Seymour, Rachel; Churchill, Christine; Bartel, Claire; Mayberry, Robert Miles; Brownrigg, Maggie; Girardi, Cara; Mayfield, Ada; Hymes, Robert A.; Schwartzbach, Cary C.; Schulman, Jeff E.; Malekzadeh, A. Stephen; Holzman, Michael A.; Ramsey, Lolita; on behalf of the PREP-IT Investigators; Orthopaedic Surgery, School of Medicine
    An amendment to this paper has been published and can be accessed via the original article.
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    Costs and Complications of Single Stage Fixation Versus Two-Stage Treatment of Select Bicondylar Tibial Plateau Fractures
    (Wolters Kluwer, 2018-03) Virkus, Walter W.; Caballero, Jesse; Kempton, Laurence B.; Cavallero, Matthew; Rosales, Rich; Gaski, Greg; Orthopaedic Surgery, School of Medicine
    Objectives: To determine the differences in costs and complications in patients with bicondylar tibial plateau (BTP) fractures treated with one stage definitive fixation compared to two stage fixation following initial spanning external fixation. Design: Retrospective cohort study Setting: Level one trauma center Patients/Participants: Patients with OTA 41-C (Schatzker 6) treated with open reduction internal fixation (ORIF). Intervention: Definitive treatment with ORIF either acutely (one stage) or delayed following initial spanning external fixation (two stage). Main Outcome Measures: Wound healing complications, implant costs, hospital charges, PROMIS outcome measures. Results: 105 patients were identified over a three-year period, of which 52 met inclusion criteria. There were 28 patients in the One-Stage group and 24 patients in the Two-Stage group. Mean follow-up was 21.8 months, and 87% of patients had at least 12 months follow-up. The mean number of days to definitive fixation was 1.2 in the One-Stage group and 7.8 in the Two-Stage group. There were no differences between groups with respect to wound healing or any other surgery-related complications. Functional outcomes (PROMIS) were similar between groups. Mean implant cost in the Two-Stage group was $10,821 greater than the One-Stage group, mostly due to the costs of external fixation. Median hospital inpatient charges in the Two-Stage group exceeded the One-Stage group by over $68,000 for all BTP fractures and by $61,000 for isolated BTP fractures. Conclusions: Early single stage treatment of BTP fractures is cost effective, and is not associated with a higher complication rate than two stage treatment in appropriately selected patients. Level of Evidence: Level III- Retrospective cohort study
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    Costs and Radiographic Outcomes of Rotational Ankle Fractures Treated by Orthopaedic Surgeons With or Without Trauma Fellowship Training
    (Wolters Kluwer, 2018-06) Virkus, Walter W.; Wetzel, Robert J.; McKinley, Todd O.; Sorkin, Anthony T.; Cheesman, Jeffrey S.; Hill, Lauren C.; Kempton, Laurence B.; Orthopaedic Surgery, School of Medicine
    Introduction: We evaluated the radiographic outcomes and surgical costs of surgically treated rotational ankle fractures in our health system between providers who had completed a trauma fellowship and those who had not. Methods: We grouped patients into those treated by trauma-trained orthopaedic surgeons (TTOS) and non–trauma-trained orthopaedic surgeons (NTTOS). We graded the quality of fracture reductions and calculated implant-related costs of treatment. Results: A total of 208 fractures met the inclusion criteria, with 119 in the TTOS group and 89 in the NTTOS group. Five patients lost reduction during the follow-up period. The adequacy of fracture reduction at final follow-up did not differ (P = 0.29). The median surgical cost was $2,940 for the NTTOS group and $1,233 for the TTOS group (P < 0.001). Discussion: We found no notable differences in radiographic outcomes between the TTOS and NTTOS groups. Cost analysis demonstrated markedly higher implant-related costs for the NTTOS group, with the median surgical cost being more than twice that for the TTOS group. Level of Evidence: Level III
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    Locking Plate Fixation in a Series of Bicondylar Tibial Plateau Fractures Raises Treatment Costs Without Clinical Benefit
    (Wolters Kluwer, 2018-05) Cavallero, Matthew; Rosales, Richard; Caballero, Jesse; Virkus, Walter W.; Kempton, Laurence B.; Gaski, Greg E.; Orthopaedic Surgery, School of Medicine
    Objectives: To compare outcomes and costs between locking and nonlocking constructs in the treatment of bicondylar tibial plateau (BTP) fractures. Design: Retrospective cohort study. Setting: Level 1 academic trauma center. Patients: All patients that presented with complete articular, BTP fractures (AO/OTA 41-C and Schatzker 6) between 2013-2015 were screened (n=112). Patients treated with a mode of fixation other than plate-and-screw were excluded. 56 patients with a minimum follow-up of 12 months were included in the analysis. Intervention: Operative fixation of BTP fractures with locking (n=29) or nonlocking (n=27) implants. Main outcome measurements: Implant cost, patient reported outcomes (PROMIS physical function and pain interference), clinical, and radiographic outcomes. Results: There were no differences between the two groups with respect to demographics, injury characteristics, radiographic outcomes (change in alignment) or clinical outcomes (PROMIS, reoperation, nonunion, infection). Implant costs were significantly greater in the locking group compared to the nonlocking group (mean L $4453; mean NL $2569; p<0.01). Conclusions: This study demonstrated improved value of treatment (less cost with no difference in clinical outcome) with nonlocking implants for bicondylar tibial plateau fractures when dual plate fixation strategies are performed. Level of Evidence: Therapeutic III. See Instructions for Authors for a complete description of levels of evidence.
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    Patient and stakeholder engagement learnings: PREP-IT as a case study
    (Future Medicine, 2021-04) Medeiros, Michelle; Love, T Rosie; Slobogean, Gerard P.; Sprague, Sheila; Perfetto, Eleanor M.; O'Hara, Nathan N.; Mullins, C. Daniel; Slobogean, Gerard P.; Sprague, Sheila; Wells, Jeffrey; Bhandari, Mohit; D'alleyrand, Jean-Claude; Harris, Anthony; Mullins, Daniel C.; Thabane, Lehana; Wood, Amber; Della Rocca, Gregory J.; Hebden, Joan; Jeray, Kyle J.; Marchand, Lucas; O'Hara, Lyndsay M.; Zura, Robert; Gardner, Michael J.; Blasman, Jenna; Davies, Jonah; Liang, Stephen; Taljaard, Monica; Devereaux, Pj; Guyatt, Gordon H.; Heels-Ansdell, Dianne; Marvel, Debra; Palmer, Jana; Friedrich, Jeff; O'Hara, Nathan; Grissom, Frances; Gitajn, Leah; Morshed, Saam; O'Toole, Robert; Petrisor, Bradley A.; Camara, Megan; Mossuto, Franca; Joshi, Manjari G.; Fowler, Justin; Rivera, Jessica; Talbot, Max; Dodds, Shannon; Garibaldi, Alisha; Li, Silvia; Nguyen, Uyen; Pogorzelski, David; Rojas, Alejandra; Scott, Taryn; Del Fabbro, Gina; Szasz, Olivia Page; McKay, Paula; Howe, Andrea; Rudnicki, Joshua; Demyanovich, Haley; Little, Kelly; Medeiros, Michellic; Kettering, Eric; Hale, Diamond; Polk, Genevieve; Mahal, Nirmen; Eglseder, Andrew; Johnson, Aaron; Langhammer, Christopher; Lebrun, Christopher; Manson, Theodore; Nascone, Jason; Paryavi, Ebrahim; Pensy, Raymond; Pollack, Andrew; Sciadini, Marcus; Degani, Yasmin; Joseph, Katherine; Natoli, Roman M.; Gaski, Greg E.; McKinley, Todd O.; Virkus, Walter W.; Sorkin, Anthony T.; Szatkowski, Jan P.; Baele, Joseph R.; Mullis, Brian H.; Hill, Lauren C.; Hudgins, Andrea; Osborn, Patrick; Fowler, Justin; Pierrie, Sarah; Martinez, Eric; Kimmel, Joseph; Adams, John D.; Beckish, Michael; Bray, Christopher; Brown, Timothy R.; Cross, Andrew W.; Dew, Timothy; Faucher, Gregory; Gurich Jr, Richard W.; Lazarus, David E.; Millon, S. John; Palmer, M. Jason; Porter, Scott E.; Schaller, Thomas M.; Sridhar, Michael S.; Sanders, John L.; Rudisill Jr, L. Edwin; Garitty, Michael J.; Poole, Andrew S.; Sims, Michael L.; Walker, Clark M.; Carlisle II, Robert M.; Hofer, Erin Adams; Huggins, Brandon S.; Hunter, Michael D.; Marshall, William A.; Ray, Shea Bielby; Smith, Cory D.; Altman, Kyle M.; Bedard, Julia C.; Loeffler, Markus F.; Pichiotino, Erin R.; Cole, Austin A.; Maltz, Ethan J.; Parker, Wesley; Ramsey, T. Bennett; Burnikel, Alex; Colello, Michael; Stewart, Russell; Wise, Jeremy; Moody, M. Christian; Tanner, Stephanie L.; Snider, Rebecca G.; Townsend, Christine E.; Pham, Kayla H.; Martin, Abigail; Robertson, Emily; Miclau, Theodore; Kandemir, Utku; Marmor, Meir; Matityahu, Amir; McClellan, R. Trigg; Meinberg, Eric; Shearer, David; Toogood, Paul; Ding, Anthony; Donohue, Erin; Belaye, Tigist; Berhaneselase, Eleni; Paul, Alexandra; Garg, Kartik; Gary, Joshua L.; Warner, Stephen J.; Munz, John W.; Choo, Andrew M.; Achor, Timothy; Routt, Milton L. "Chip"; Rao, Mayank; Pechero, Guillermo; Miller, Adam; Hagen, Jennifer E.; Patrick, Matthew; Vlasak, Richard; Krupko, Thomas; Sadasivan, Kalia; Koenig, Chris; Bailey, Daniel; Wentworth, Daniel; Van, Chi; Schwartz, Justin; Dehghan, Niloofar; Jones, Clifford B.; Watson, J. Tracy; McKee, Michael; Karim, Ammar; Talerico, Michael; Sietsema, Debra L.; William, Alyse; Dykes, Tayler; Obremskey, William T.; Jahangir, Amir Alex; Sethi, Manish; Boyce, Robert; Stinner, Daniel J.; Mitchell, Phillip; Trochez, Karen; Rodriguez, Andres; Gajari, Vamshi; Rodriguez, Elsa; Pritchett, Chris; Boulton, Christina; Lowe, Jason; Wild, Jason; Ruth, John T.; Taylor, Michel; Seach, Andrea; Saeed, Sabina; Culbert, Hunter; Crus, Alejandro; Knapp, Thomas; Hurkett, Colin; Lowney, Maya; Prayson, Michael; Venkatarayappa, Indresh; Horne, Brandon; Jerele, Jennifer; Clark, Linda; Marcano-Fernández, Francesc; Jornet-Gibert, Montsant; Martínez-Carreres, Laia; Martí-Garín, David; Serrano-Sanz, Jorge; Sánchez-Fernández, Joel; Sanz-Molero, Matsuyama; Carballo, Alejandro; Pelfort, Xavier; Acerboni-Flores, Francesc; Alavedra-Massana, Anna; Anglada-Torres, Neus; Berenguer, Alexandre; Cámara-Cabrera, Jaume; Caparros-García, Ariadna; Fillat-Gomà, Ferran; Fuentes-López, Ruben; Garcia-Rodriguez, Ramona; Gimeno-Clavia, Nuria; Graells-Alonso, Guillem; Martínez-álvarez, Marta; Martínez-Grau, Patricia; Pellejero-García, Raúl; Ràfols-Perramon, Ona; Peñalver, Juan Manuel; Salomò Domènech, Mònica; Soler-Cano, Albert; Velasco-Barrera, Aldo; Yela-Verdú, Christian; Bueno-Ruiz, Mercedes; Sánchez-Palomino, Estrella; Guerra-Farfán, Ernesto; García, Yaiza; Romeo, Nicholas M.; Vallier, Heather A.; Breslin, Mary A.; Fraifogl, Joanne; Wilson, Eleanor S.; Wadenpfuhl, Leanne K; Halliday, Paul G.; Viskontas, Darius G.; Apostle, Kelly L.; Boyer, Dory S.; Moola, Farhad O.; Perey, Bertrand H.; Stone, Trevor B.; Lemke, H. Michael; Zomar, Mauri; Spicer, Ella; Fan, Chen "Brenda"; Payne, Kyrsten; Phelps, Kevin; Bosse, Michael; Karunakar, Madhav; Kempton, Laurence; Sims, Stephen; Hsu, Joseph; Seymour, Rachel; Churchill, Christine; Bartel, Claire; Mayberry, Robert Miles; Brownrigg, Maggie; Girardi, Cara; Mayfield, Ada; Hymes, Robert A.; Schwartzbach, Cary C.; Schulman, Jeff E.; Malekzadeh, A. Stephen; Holzman, Michael A.; Ramsey, Lolita; Ahn, James S.; Panjshiri, Farhanaz; Das, Sharmistha; English, Antoinisha D.; Haaser, Sharon M.; Cuff, Jaslynn A.N.; Pilson, Holly; Carroll, Eben A.; Halvorson, Jason J.; Babcock, Sharon; Goodman, J. Brett; Holden, Martha B.; Bullard, Debra; Williams, Wendy; Higgins, Thomas F.; Haller, Justin M.; Rothberg, David L.; Neese, Ashley; Russell, Mark; Coe, Marcus; Dwyer, Kevin; Mullin, Devin S.; Reily, Clifford A; DePalo, Peter; Hall, Amy E.; Heng, Marilyn; Harris, Mitchel B.; Smith, R. Malcolm; Lhowe, David W.; Esposito, John; Bansal, Mira; Bergin, Patrick F.; Russell, George V.; Graves, Matthew L.; Morellato, John; Champion, Heather K.; Johnson, Leslie N.; McGee, Skeketha L.; Bhanat, Eldrin L.; Mehta, Samir; Donegan, Derek; Ahn, Jaimo; Horan, Annamarie; Dooley, Mary; Kuczinski, Ashley; Iwu, Ashley; Potter, David; VanDemark II, Robert; Pfaff, Branden; Hollinsworth, Troy; Weaver, Michael J.; von Keudel, Arvind G.; McTague, Michael F.; Allen, Elizabeth M.; Jaeblon, Todd; Beer, Robert; Gage, Mark J.; Reilly, Rachel M.; Sparrow, Cindy; Paniagua, Ariana; Orthopaedic Surgery, School of Medicine
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    Predictors of Improved Early Clinical Outcomes After Elective Implant Removal
    (Wolters Kluwer, 2021-03) Kempton, Laurence B.; Gaski, Greg E.; Brown, Krista; McKinley, Todd O.; Virkus, Walter W.; Orthopaedic Surgery, School of Medicine
    Objectives: To determine preoperative factors predictive of improvement in pain and function after elective implant removal. We hypothesized that patients undergoing orthopaedic implant removal to relieve pain would have significant improvements in both pain and function. Design: Prospective cohort study. Setting: Level I Trauma Center. Patients/Participants: One hundred eighty-nine patients were enrolled after consenting for orthopaedic implant removal to address residual pain. One hundred sixty-three were available for 3-month follow-up. Main Outcome Measurement: Preoperative and postoperative outcome measures including Patient Reported Outcomes Measurement Information System (PROMIS) scores were compared. Preoperative scores, surgeon prediction of pain improvement, and palpable implants were analyzed as predictors of outcomes. Results: Median PROMIS physical function and pain interference scores and visual analogue scale significantly improved by 6, 8, and 2 points, respectively (P < 0.001 for all). Worse preinjury scores predicted improvement in respective postoperative outcomes (P < 0.001 for all). Surgeon prediction of improvement was associated with improved PROMIS pain interference (P = 0.005), patient subjective assessment of pain improvement (P = 0.03), and subjective percent of pain remaining at 3 months (P = 0.02). Implant superficial palpability was not predictive for any postoperative outcomes. Conclusions: Although the primary indication for implant removal in this population was pain relief, many patients also had a clinically relevant improvement in physical function. In addition, patients who start with worse global indices of pain and function are more likely to improve after implant removal. This suggests that implant-related pain directly contributes to global dysfunction.