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Research Publications by Travis Maak, MD

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Recent Publications

Hip Preservation: Single-Stage Arthroscopic Autologous Matrix鈥揈nhanced Chondral Transplantation (AMECT) in the Hip

Chondral defects of the acetabulum in patients with femoroacetabular impingement syndrome are an increasingly recognized cause of worse outcomes after treatment. Multiple procedures have been described for the treatment of hip cartilage lesions including microfracture, autologous chondrocyte implantation, matrix-induced autologous chondrocyte implantation, and autograft and allograft transplantation.

Knee Preservation: Osteotomies Around the Knee - How to Postpone Total Knee Replacement

Lateral compartment disease combined with valgus alignment can lead to progressive knee joint degeneration. In the symptomatic patient with isolated lateral compartment disease, a varus-producing distal femoral osteotomy can unload the diseased lateral compartment. This osteotomy may be combined with other cartilage or meniscal restorative techniques to optimize knee joint preservation and pain relief.

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Peer Reviewed Publications

  • Maak TG. CORR Insights: Is there a scientific rationale for the refixation of delaminated chondral flaps in femoroacetabular impingement? A laboratory study. Clin Orthop Relat Res. 2020 Apr;478(4):868-870.
     
  • Shin J, Adeyemi TF, Hobson T, Peters CL, Maak TG. The Bipolar Hip: How acetabular and femoral pathomorphology affect hip motion in femoral acetabular impingement syndrome. Arthroscopy. 2020 Mar 10.
     
  • Craig MJ, Maak TG. Single-stage arthroscopic autologous matrix-enhanced chondral transplantation (AMECT) in the hip. Arthrosc Tech. 2020 Feb 25;9(3):e399-e403.
     
  • Philippi MT, Kahn TL, Adeyemi TF, Maak TG, Aoki SK. Leg dominance as a risk factor for femoroacetabular impingement syndrome. JHPS. 2020 Feb 13;7(1):22-26.
     
  • Dukas AG, King TL, Adeyemi TF, Maak TG. Arthroscopic reduction and fixation of a lesser trochanter avulsion nonunion. Arthrosc Tech. 2019 Nov 20;8(12):e1525-e1531.
     
  • Murphy MM, Atkins PR, Kobayashi EF, Anderson AE, Maak TG, Nechyporenko A, Aoki SK. Assessment of acetabular morphology utilizing the acetabular anterior center-edge angle on modified false-profile radiographs. Arthroscopy. 2019 Nov; 35(11):3060-3066.
     
  • Cannamela PC, Maak TG, Adeyemi TF, Aoki SK. Traumatic pediatric quadriceps rupture after medial patellofemoral ligament reconstruction: A Case report. JBJS Case Connect. 2019 Oct 1.
     
  • Bailey TL, Stephens AR, Adeyemi TF, Xu Y, Presson AP, Aoki SK, Maak TG. Traction time, force and postoperative nerve block significantly influence the development and duration of neuropathy following hip arthroscopy. Arthroscopy. 2019 Oct;35(10)2825-2831.
     
  • Cannamela PC, Quinlan NJ, Maak TG, Adeyemi TF, Aoki SK. Knee extension does not reliably reduce acute Type II tibial spine fractures: an MRI evaluation in extension versus resting flexion. OJSM. 2019 Jul 18;7(7).
     
  • Rogers MJ, Adeyemi TF, Kim J, Maak TG. Understanding pre-operative demographics and risk factors for revision surgery in patients undergoing hip arthroscopy: A Large database study. OJSM. 2019 Jun 26;7(6).
     
  • Dy C, Osei DA, Maak TG,Gottschalk MB, Zhang AL, Maloney MD, Presson AP, O鈥橩eefe RJ.Safety of overlapping inpatient orthopaedic surgery: A Multicenter study. JBJS-Am. 2018 Nov 21;100(22):1902-1911.
     
  • Kapron AL, Karns MR, Aoki SK, Adeyemi TF, Baillargeon EA, Hartley MK, Todd JN, Maak TG.Patient-Specific parameters associated with traction in primary and revision hip arthroscopy. OJSM. 2018 Nov 19;6(11):2325967118807707
     
  • Phillippi MT, Khan TL, Adeyemi TF, Maak TG, Aoki SK. Extracapasular local infiltration analgesia in hip arthroscopy patients: a randomized, prospective study. J Hip Preserv Surg. 2018 Sept 18;5(3):226-232.
     
  • Maak TG. CORR Insights: Intravenous Tranexamic Acid Reduces Postoperative Blood Loss After High Tibial Osteotomy. CORR. 2018 Nov;476(11):2155-2156.
     
  • Karns MR, Jones DL, Todd DC, Maak TG, Aoki SK, Burks RT, Yoo M, Nelson RE, Greis PE. Patient- and Procedure-Specific Variables Driving Total Direct Costs of Outpatient Anterior Cruciate Ligament Reconstruction. OJSM. 2018 Aug 5;5(8):2325967118788543.
     
  • Jones DL, Philippi MT, Maak TG, Aoki SK. Progressive osteoarthritis during pregnancy several years following hip arthroscopy for femoroacetabular impingement. J Orthop. 2018 Mar 27;15(2):475-479.
     
  • Karns MR, Adeyemi TF, Stephens AR, Beese ME, Aoki SK, Salata MJ, Maak TG. Revisiting the Anteroinferior Iliac Spine: Is the Subspine Pathologic? A Clinical and Radiographic Evaluation. CORR. 2018 Jul;276(7):1494-1502.
     
  • Shin J, Maak TG.Arthroscopic Transtibial PCL reconstruction: Surgical Technique and Clinical Outcomes. Curr Rev Musculoskel Med. 2018 Jun;11(2):307-315.
     
  • Marchand LS, Todd DC, Kellam P, Adeyemi TF, Rothberg DL, Maak TG.Is the lesser trochanter profile a reliable means of restoring anatomic rotation after femur fracture fixation? CORR 2018 Jun;476(6):1253-1261.
     
  • Kapron AL, Aoki SK, Weiss JA, Krych AJ, Maak TG. Isolated focal cartilage and labral defects in patients with femoroacetabular impingement syndrome may represent new, unique injury patterns. KSSTA 2018 Feb 13. (EPub)
     
  • Philippi MT, Kahn TL, Adejemi TF, Maak TG, Aoki SK. Extracapsular local infiltration analgesia in hip arthroscopy: a retrospective study. J Hip Preserv surg. 2018 Jan 22;5(1):60-65.
     
  • Todd JN, Maak TG,Ateshian GA, Maas SA, Weiss JA. Hip chondrolabral mechanics during activities of daily living: Role of the labrum and interstitial fluid pressurization. J. Biomech. 2018 Jan 16.
     
  • Wylie JD, Jenkins P, Aoki SK, Maak TG. Computed tomography scans in patients with young adult hip pain carry a lifetime risk of malignancy. Arthroscopy. 2018, Jan; 34(1):155-163.
     
  • Sanders TL, Pareek A, Johnson NR, Carey JL, Maak TG, Stuart MJ, Krych AJ. Nonoperative management of osteochondritis dissicans of the knee: Progression to osteoarthritis and arthroplasty at mean 13-year follow-up. Orthop J Sports Med. 2017 Jul 24;5(7). Epub.
     
  • Atkins PR, Fiorentino NM, Aoki SK, Peters CL, Maak TG, Anderson AE. In vivo measurements of the ischiofemoral space in recreationally active participants during dynamic activities: A High-speed dual fluoroscopy study. AJSM. 2017. Jul 1. Epub
     
  • Wylie JD, Kapron AL, Peters CL, Aoki SK, Maak TG.Relationship between the lateral center-edge angle and 3-dimensional acetabular coverage. Orthop J Sports Med. 2017 Apr 12;5(4).
     
  • Beebe MJ, Wylie JD, Bodine BG, Kapron AL, Maak TG, Mei-Dan O, Aoki SK. Accuracy and reliability of computed tomography and magnetic resonance imaging compared with true anatomic femoral version. JPO. 2017 Jun;37(4):e265-e270.
     
  • Wylie JD, Maak TG. Medial closing-wedge distal femoral osteotomy for genu valgum with lateral compartment disease. Arthrosc Tech. 2016 Nov 28;5(6):e1357-e1366.
     
  • Teramoto M, Cross CL, Rieger RH, Maak TG, Willick SE. Predictive validity of national basketball association draft combine on future performance. J Strength Cond Res. 2017 Jan 20.
     
  • Klennert BJ, Ellis BJ, Maak TG, Kapron AL, Weiss JA. The mechanics of focal chondral defects in the hip. J Biomech. 2016 Nov 29.
     
  • Teramoto M, Cross CL, Cushman DM, Maak TG, Petron DJ, Willick SE. Game injuries in relation to game schedules in the National Basketball Association. J Sci Med Sports. 2016 Sept 1.
     
  • Maak TG, Wylie JD. Medical Device Regulation: A Comparison of the United States and European Union. JAAOS. 2016 Aug;24(8):537-43.
     
  • Wylie JD, Jones DL, Hartley MK, Kapron AL, Krych AJ, Aoki SK, Maak TG. Distal femoral osteotomy for the valgus knee: Medial closing wedge versus lateral opening wedge: A Systematic review. Arthroscopy. 2016 Jun 3.
     
  • Wylie JD, Abtahi AM, Beckmann JT, Maak TG, Aoki SK. Arthroscopic and imaging findings after hip dislocation in patients younger than 25 years of age. J Hip Preserv Surg. 2015 May 29;2(3):303-9.
     
  • Pareek A, Reardon PJ, Maak TG, Levy BA, Stuart MJ, Krych AJ. Long-term outcomes after osteochondral autograft transfer: A Systematic review at mean follow-up of 10.2 years. Arthroscopy. 2016 Feb 19.
     
  • Brandenburg JB, Kapron AL, Wylie JD, Wilkinson BG, Maak TG, Gonzalez CD, Aoki SK. The Functional and structural outcomes of arthroscopic iliopsoas release. AJSM. 2016 Feb 12.
     
  • Beckman JT, Wylie JD, Potter MQ, Maak TG, Greene TH, Aoki SK. Effect of naproxen prophylaxis on heterotopic ossification following hip arthroscopy: A Double-blind randomized placebo-controlled trial. JBJS-Am. 2015 Dec 16;97(24):2032-7.
     
  • Krych AJ, Nawabi DH, Farshad-Amacker NA, Jones KJ, Maak TG, Potter HG, Williams RJ 3rd. Bone marrow concentrate improves early cartilage phase maturation of the scaffold plug: A Comparative magnetic resonance imaging analysis to platelet-rich plasma and control. AJSM. 2015 Nov 16.
     
  • Wylie JD, Beckmann JT, Maak TG, Aoki SK. Arthroscopic capsular repair for symptomatic hip instability after previous hip arthroscopy. AJSM. 2015 Sep 29.
  • Wylie JD, Hartley MK, Kapron AL, Aoki SK, Maak TG. Failures and reoperations after matrix-assisted cartilage repair of the knee: A Systematic review. Arthroscopy. 2015 Sep 27.
  • Hanson JA, Kapron AL, Swenson KM, Maak TG, Peters CL, Aoki SK. Discrepancies in measuring acetabular coverage: revisiting the anterior and lateral center edge angles. J Hip Preserv Surg. 2015 Jun 13;2(3):280-6.
     
  • Wylie JD, Abtahi AM, Beckmann JT, Maak TG, Aoki SK. Arthroscopic and imaging findings after hip dislocation in patients younger than 25 years of age. J Hip Preserv Surg. 2015 May 29;2(3):303-9.
     
  • Wylie JD, Hartley MK, Kapron AL, Aoki SK, Maak TG. What is the effect of matrices on cartilage repair? A Systematic review. CORR. 2015 Jan 21.
     
  • Kullar RS, Kapron AL, Ihnat D, Aoki SK, Maak TG. Acetabular paralabral cyst: an unusual cause of femoral vein compression. Arthrosc Tech. 2015 Jan 26;4(1):e35-40.
     
  • Maak TG. CORR Insights: Lateral opening-wedge distal femoral osteotomy: Pain relief, functional improvement and survivorship at 5 years. CORR 2015 Feb 3.
     
  • Wylie JD, Hartley MK, Kapron AL, Aoki SK, Maak TG. What is the effect of matrices on cartilage repair? A Systematic review. CORR. 2015 Jan 21.
     
  • Wylie JD, Beckmann JT, Maak TG, Aoki SK. Arthroscopic treatment of mild to moderate deformity after slipped capital femoral epiphysis: Intra-Operative findings and functional outcomes. Arthroscopy. 2014 Oct 16.
     
  • Jimenez CL, Beebe MJ, Maak TG, Aoki SK. Acute severe hip pain associated with labral calcific deposition disease. Orthopedics. 20q14 Dec; 37(12):e1137-40.
     
  • Beckmann JT, Wylie JD, Kapron AL, Hanson JA, Maak TG, Aoki SK. The effect of NSAID prophylaxis and operative variables on heterotopic ossification after hip arthroscopy. AJSM. 2014 Mar 24.
     
  • Potter MQ, Sun GS, Fraser JA, Beckmann JT, Swenson JD, Maak TG, Aoki SK. Psychological distress in hip arthroscopy patients affects postoperative pain control. Arthroscopy. 2014 Feb;30(2):195-201.
     
  • Schrumpf MA, Maak TG, Delos D, Jones KJ, Dines DM, Walch G, Dines JS. The management of anterior glenohumeral instability with and without bone loss: AAOS exhibit selection. JBJS Am. 2014 Jan 15;96(2):e12.
     
  • Ozturk BY, Maak TG, Fabricant P. Altchek DW, Williams RJ, Warren RF, Cordasco FA, Allen AA. Return to sports after arthroscopic anterior stabilization in patients aged younger than 25 years. Arthroscopy. 2013 Dec;29(12):1922-31.
     
  • Cross MB, Raphael BS, Maak TG, Plaskos C, Egidy CC, Pearle AD. Characterization of the orientation of Humphrey鈥檚 ligament. Knee. 2013 May 6;S0968-0160(13). Epub.
     
  • Delos D, Maak TG, Rodeo SA. Muscle injuries in athletes: enhancing recovery through scientific understanding and novel therapies. Sports Health. 2013 Jul;5(4):346-52.
     
  • Kelly BT, Maak TG, Larson CM, Bedi A, Zaltz I. Sports hip injuries: assessment and management. Instructional Course Lectures 01/2013; 62:515-31.
     
  • Maak TG, Osei D, Delos D, Cross M, Taylor S, Warren RF, Weiland AJ. Peripheral nerve injuries in sports-related surgery: Presentation, evaluation and management. JBJS. 2012 Aug 15;94(16):e1211-10.
     
  • Nam D, Maak TG, Raphael BS, Kepler C, Warren RF. Rotator cuff tear arthropathy: Evaluation, diagnosis and treatment. JBJS. 2012 Mar 21;94(6):e34.
     
  • Fabricant P, Maak TG, Cross M, Kelly BT. Avoiding complications in hip arthroscopy. Operative Techniques in Sports Medicine. 2011. June ; 19(2):108-113.
     
  • Bedi A, Maak T, Walsh C, Rodeo SA, Grande D, Dines DM, Dines JS. Cytokines in rotator cuff degeneration and repair. JSES. 2012 Feb;21(2):218-27.
     
  • Maak TG, Fabricant PD, Wickiewicz TL. Indications for meniscus repair. Clinics in Sports Medicine. 2012. Jan; 31(1):1-14. Epub 2011 Oct 11.
     
  • Iriuchishima T, Maak TG, Fu F, Bedi A, Pearle AD. ACL Graft Impingement: Letter to the editor. AJSM. 2011. Oct; 39(10):NP3-4.
     
  • Raphael BR, Maak TG, Citak M, Suero E, Pearle AD. From wall graft to roof graft: Reassessment of femoral posterior cruciate ligament positioning. Am J Orthop. 2011. Sep; 40(9):479-84.
     
  • Schrumpf MS, Maak T, Hammoud S, Craig EV. The glenoid in total shoulder arthroplasty. Current Reviews in Musculoskeletal Medicine. 2011 Dec;4(4):191-9.
     
  • Bedi A, Maak TG, Musahl V, O鈥橪oughlin PF, Choi D, Citak M, Cross MB, Pearle AD. Effect of tunnel position and graft size in single-bundle ACL reconstruction: An evaluation of time-zero stability. Arthroscopy. 2011. Nov;27(11):1543-51. Epub 2011 Jun 25.
     
  • Cross MB, Fabricant P, Maak TG, Kelly BT. Impingement (Acetabular Side). Clinics in Sports Medicine. 2011. Apr;30(2):379-90.
     
  • Maak TG, Marx RG, Wickiewicz T. Management of chronic tibial subluxation in the multiple-ligament injured knee. Sports Medicine and Arthroscopy Review. 2011 Jun;19(2):147-52.
     
  • Maak TG, Bedi A, Raphael B, Citak M, Suero EM, Wickiewicz T, Pearle AD. Effect of femoral socket position on graft impingement after anterior cruciate ligament reconstruction. AJSM. 2011. May;39(5):1018-23.
     
  • Bedi A, Maak TG, Musahl V, Citak M, O鈥橪oughlin PF, Choi D, Pearle AD. Effect of tibial tunnel position on stability of the knee after anterior cruciate ligament reconstruction. Is the tibial tunnel position most important? AJSM. 2011 Feb;39(2):366-73.
     
  • Maak TG, Voos JE, Wickiewicz TL, Warren RF. The effect of tunnel widening in revision anterior cruciate ligament reconstruction. JAAOS. JAAOS 2010; 18(11)695-706.
     
  • Bedi A, Musahl V, O鈥橪oughlin PF, Maak TG, Dixon P, Citak M, Pearle AD. A comparison of central anatomical single-bundle anterior cruciate ligament reconstruction and double-bundle anterior cruciate ligament reconstruction on pivot-shift kinematics. AJSM. 2010 Sep;38(9):1788-94.
     
  • Voos JE, Musahl V, Maak TG, Wickiewicz TL, Pearle AD. Comparison of tunnel positions in single-bundle anterior cruciate ligament reconstructions using computer navigation. KSSTA. 2010 Sep;18(9):1282-9.
     
  • Barker JU, Drakos MC, Maak TG, Warren RF, Williams RJ, Allen AA. The effect of graft selection on the incidence of post-operative infection in anterior cruciate ligament reconstruction. AJSM. 2010; Feb; 38(2):281-6.
     
  • Maak TG, Ivancic PC, Tominaga Y, Panjabi MM. Side impact causes multiplanar cervical spine injuries. J. Trauma. 2007; Dec; 63:1296-307.
     
  • Maak TG, Grauer JN. The contemporary treatment of odontoid injuries. Spine. 2006; 31:S53-60; discussion S1.
     
  • Maak TG, Tominaga Y, Panjabi MM, Ivancic PC. Alar, transverse and apical ligament strain due to head-turned rear impact. Spine. 2006; 31:632-8.
     
  • Magit D, Maak TG, Hammouri Q, Raphael BS, Albert TJ, Grauer JN. Healos/recombinant human growth and differentiation factor-5 induces posterolateral lumbar fusion in a New Zealand white rabbit model. Spine. 2006; 31:2180-8.
     
  • Tominaga Y, Maak TG, Ivancic PC, Panjabi MM, Cunningham BW. Head-turned rear impact causing dynamic cervical intervertebral foramen narrowing: implications for ganglion and nerve root injury. J. Neurosurgery Spine. 2006:4:380-7.
     
  • Panjabi MM, Maak TG, Tominaga Y, Ivancic PC. Dynamic intervertebral foramen narrowing during whiplash. Spine 2006;31(5):E128-E34.
     
  • White AP, Maak TG, Prince D, Vaccaro AR, Albert TJ, Hilibrand AS, Grauer JN. OP-1-induced gene expression: Evaluation in a posterolateral spinal pseudarthrosis model. Spine. 2006; 31:2550-2555.
     
  • Panjabi MM, Ivancic PC, Maak TG, Tominaga Y, Rubin W. Multiplanar cervical spine injury due to head-turned rear impact. Spine 2006;31(4):420-9.
     
  • Ivancic PC, Panjabi MM, Tominaga Y, Pearson AM, Gimenez SE, Maak TG. Spinal canal narrowing during simulated frontal impact. Eur Spine J. 2006 Jun;15(6):891-901. Epub 2005 Oct 12.

Non-Peer Reviewed Publications

  • Xu C, Lee WA, Lee S, Maak TG, Fogarty TJ, Zarins CK. 鈥淐omparison of 鈥榥ew Fogarty soft-insert vascular clamps (Novare Surgical)鈥 to 鈥榮tandard steel vascular clamps鈥.鈥 Vascular Surgery Review Article, From the Division of Vascular Surgery, Stanford University Medical Center Supported by Novare Surgical Systems.

 

  • Maak TG, Xu C, Lee BS, Zarins CK. Elastin gene expression during aortic wall remodeling in response to sustained hypertension. The Stanford Biologist, Volume 6, 2001.

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