Prof. MD. Hakan Başar

Education and Expertise (Education and Expertise)

• Istanbul University Cerrahpaşa English Faculty of Medicine
• Marmara University Faculty of Medicine Orthopedics and Traumatology Department (Department)

Experience (Experience)

• 2005-2010 Marmara University Faculty of Medicine Orthopedics and Traumatology Department / Research Assistant (Research Assistant)
• 2011-2016 Sakarya Training and Research Hospital Orthopedics and Traumatology Department / Specialist Doctor (Specialist Doctor)
• 2016-2017 Sakarya Training and Research Hospital Orthopedics and Traumatology Department / Associate Professor Doctor (Associate Professor Doctor)
• 2017-2022 Health Sciences University Gaziosmanpaşa Taksim Training and Research Hospital Orthopedics and Traumatology Department / Associate Professor Doctor (Associate Professor Doctor)
• 2022-2025 Health Sciences University Gaziosmanpaşa Training and Research Hospital Orthopedics and Traumatology Department / Professor Doctor (Professor Doctor)

Articles Published in International Peer-Reviewed Journals (Articles Published in International Peer-Reviewed Journals)

1. TETİK CİHANGİR, BAŞAR HAKAN, BEZER MURAT, EROL BÜLENT, AĞIR İSMAİL (2011). Comparison of early results of vascularized and non-vascularized fibular grafting in the treatment of osteonecrosis of the femoral head. Acta Orthopaedica et Traumatologica Turcica, 45(5), 326-334. Doi: 10.3944/AOTT.2011.2259.
2. AĞIR İSMAİL, TETİK CİHANGİR, BAŞAR HAKAN (2011). Closed traumatic rupture of both flexor tendons in a child. Chirurgia, 24, 225-227.
3. BAŞAR HAKAN, EROL BÜLENT, TETİK CİHANGİR (2012). Use of continuous horizontal mattress suture technique in end-to-side microsurgical anastomosis. Hand Surgery, 17(3), 419-427. Doi: 10.1142/S0218810412970064.
4. BAŞAR HAKAN, BAŞAR BETÜL, EROL BÜLENT, TETİK CİHANGİR (2012). Ligament reconstruction and tendon interposition arthroplasty of the trapeziometacarpal joint with the use of the full thickness of the flexor carpi radialis tendon. Chirurgie de la Main, 31(6), 331-336. Doi: 10.1016/j.main.2012.10.170.
5. BAŞAR HAKAN, GÖRKEM KIYAK, BARIŞ ÇAYPINAR, EROL BÜLENT (2012). Effects of the grade, stability, chronological classification and being either unilateral or bilateral of the slip on the treatment by in situ single screw fixation of patients with slipped capital femoral epiphysis. Archives of Orthopaedic and Trauma Surgery, 132(12),1671-1676. Doi: 10.1007/s00402-012-1577-5.
6. İNANMAZ MUSTAFA ERKAN, KÖSE KAMİL ÇAĞRI, ATMACA HALİL, ÖZKAN ARİF, IŞIK CENGİZ, BAŞAR HAKAN (2013). Using a combination of intralaminar and pedicular screw constructs for enhancement of spinal stability and maintenance of correction in patients with sagittal imbalance: Clinical applications and finite element analysis. Journal of Spinal Disorders & Techniques. DOI: 10.1097/BSD.0000000000000069
7. BAŞAR HAKAN, İNANMAZ MUSTAFA ERKAN, BAŞAR BETÜL, BAL EMRE, KÖSE KAMİL ÇAĞRI (2014). Protruded and nonprotruded subungual exostosis: Differences in surgical approach. Indian Journal of Orthopaedics, 48(1), 49-52, Doi: 10.4103 /0019-5413.125496.
8. BAŞAR HAKAN, İNANMAZ MUSTAFA ERKAN, KÖSE KAMİL ÇAĞRI, TETİK CİHANGİR (2014). Isolated dorsal approach for the treatment of neglected volar metacarpophalangeal joint dislocations. World journal of orthopedics, 18(5), 62-66, Doi: 10.5312/wjo.v5.i1.62.
9. KÖSE KAMİL ÇAĞRI, İNANMAZ MUSTAFA ERKAN, IŞIK CENGİZ, BAŞAR HAKAN, ÇALIŞKAN İSLAM, BAL EMRE (2014). Short segment pedicle screw instrumentation with an index level screw and cantilevered hyperlordotic reduction in the treatment of type-A fractures of the thoracolumbar spine. Journal of Bone and Joint Surgery – British Volume, 96(4), 541-547. Doi: 10.1302/0301-620X.96B4.33249
10. BAŞAR HAKAN, BAŞAR BETÜL, EROL BÜLENT, TETİK CİHANGİR (2014). Isolated volar surgical approach for the treatment of perilunate and lunate dislocations. Indian Journal of Orthopaedics, 48(3), 301-305. Doi: 10.4103/0019-5413.132523.
11. BAŞAR HAKAN, BAŞAR BETÜL, EROL BÜLENT, TETİK CİHANGİR (2014). Comparison of ulnar nerve repair according to injury level and type. International Orthopaedics, 38(10), 2123-2128. Doi: 10.1007/s00264-014-2430-y.
12. BAŞAR HAKAN, TETİK CİHANGİR (2014). Modified Brunelli pull-out suture technique in zone II flexor tendon rupture: a fresh human cadaver study. HAND SURGERY, 19(3), 349-355. Doi: 10.1142/S0218810414500269.
13. BAŞAR HAKAN, EROL BÜLENT, TOPKAR OSMAN MERT (2014). Osteoid osteoma of distal phalanx of toe: a rare cause of foot pain. Case reports in orthopedics, Doi: dx.doi.org/10. 1155/2014/560892.
14. İNANMAZ MUSTAFA ERKAN, KÖSE KAMİL ÇAĞRI, IŞIK CENGİZ, ATMACA HALİL, BAŞAR HAKAN (2014). Can hyperbaric oxygen be used to prevent deep infections in neuro-muscular scoliosis surgery? BMC Surgery, 14, Doi: 10.1186/1471-2482-14-85.
15. BAŞAR HAKAN, BAŞAR BETÜL, KIRBIZ ABDULLAH (2014). Functional results of osteosynthesis with mini-plate and screws in metacarpal fractures. Journal of Acute Disease, 221-223. Doi: 10.1016 /S2221-6189(14)60049-4.
16. BAŞAR HAKAN, BAŞAR BETÜL, KAPLAN TOLGA, EROL BÜLENT, TETİK CİHANGİR (2014). Comparison of results after surgical repair of acute and chronic ulnar collateral ligament injury of the thumb. Chirurgie de la Main, 33(6), 384-389. Doi: 10.1016/j.main.2014.10.003.
17. BAŞAR HAKAN, BAŞAR BETÜL, BAŞÇI ONUR, TOPKAR OSMAN MERT, EROL BÜLENT, TETİK CİHANGİR (2015). Comparison of treatment of oblique and spiral metcarpal and phalangeal fractres with mini plate plus screw or screw only. Archives of Orthopaedic and Trauma Surgery, 135, 499-505., Doi: 10.1007/s00402-015-2164-3.
18. EROL BÜLENT, TOPKAR OSMAN MERT, BAŞAR HAKAN, ÇALIŞKAN EMRAH, OKAY ERHAN (2015). Solitary cystic tuberculosis of the distal femur and proximal tibia in children. Journal of Pediatric Orthopaedics-Part B, 24(4):315-320. Doi: 10.1097/BPB. 0000000000000193.
19. EROL BÜLENT, BAŞÇI ONUR, TOPKAR OSMAN MERT, ÇAYPINAR BARIŞ, BAŞAR HAKAN, TETİK CİHANGİR (2015). Mid-term radiological and functional results of biological reconstructions of extremity-located bone sarcomas in children and young adults. Journal of Pediatric OrthopaedicsPart B, 24(5):469-78 Doi: 10.1097/BPB. 0000000000000189.
20. MUSTAFA ERKAN İNANMAZ, KAMİL ÇAĞRI KÖSE, HALİL ATMACA, AHMET ÖZKAN, CENGİZ IŞIK, HAKAN BAŞAR (2016). Using a Combination of Intralaminar and Pedicular Screw Constructs for Enhancement of Spinal Stability and Maintenance of Correction in Patients With Sagittal Imbalance: Clinical Applications and Finite Element Analysis. Clin Spine Surg. 29(8):E421-7. Doi: 10.1097/BSD.0000000000000069.
21. HAKAN BAŞAR, ERDEM ÖZDEN, BETÜL BAŞAR (2020). The effects of rehabilitation on the outcomes of surgically treated acute and chronic thumb metacarpophalangeal ulnar collateral ligament ruptures. Hand Surg Rehabil. 39(4):291-295. Doi: 10.1016/j.hansur.2020.03.002.
22. BETÜL BAŞAR, GÖKHAN BAŞAR, AHMET AYBAR, ALPER KURTHAN, HAKAN BAŞAR (2020). The effects of partial meniscectomy and meniscal repair on the knee proprioception and function. J Orthop Surg (Hong Kong). 28(1):2309499019894915. Doi: 10.1177/2309499019894915.
23. ABDÜLKADİR POLAT, ABDÜLHAMİT MISIR, MEHMET ÖZBEY BÜYÜKKUŞÇU, SEÇKİN BASILGAN, HAKAN BAŞAR (2021). Factors Associated with Femoral Neck Shortening After Closed or Open Reduction and Screw Fixation. Indian J Orthop. 14;56(2):303-311. Doi: 10.1007/s43465-021- 00484-5.
24. ALPER KURTOĞLU, BETÜL BAŞAR, GÖKHAN BAŞAR, ÖMER GEZGİNASLAN, HAKAN BAŞAR (2021). Small Size Autograft versus Large Size Allograft in Anterior Cruciate Ligament Reconstruction. Clin Orthop Surg. 13(1):47-52. doi: 10.4055/cios20008.
25. BETÜL BAŞAR, AHMET AYBAR, GÖKHAN BAŞAR, HAKAN BAŞAR (2021). The effectiveness of corticosteroid injection and splint in diabetic de Quervain's tenosynovitis patients: A single-blind, randomized clinical consort study. Medicine (Baltimore). 100(35):e27067. Doi: 10.1097/MD.0000000000027067.
26. BETÜL BAŞAR, GÖKHAN BAŞAR, MEHMET ÖZBEY BÜYÜKKUŞÇU, HAKAN BAŞAR (2021). Comparison of physical therapy and arthroscopic partial meniscectomy treatments in degenerative meniscus tears and the effect of combined hyaluronic acid injection with these treatments: A randomized clinical trial. J Back Musculoskelet Rehabil. 34(5):767-774. Doi: 10.3233/BMR-200284.
27. MEHMET ÖZBEY BÜYÜKKUŞÇU, SEÇKİN BASILGAN, ALİ MOLLAÖMEROĞLU, ABDULHAMİT MISIR, HAKAN BAŞAR (2022). Splinting vs temporary external fixation in the initial treatment of ankle fracture-dislocations. Foot Ankle Surg. 28(2):235-239. Doi: 10.1016/j.fas.2021.03.018.
28. VOLKAN KAYA, FEYZİ KILIÇ, FATİH YAMAK, ERGÜN BOZDAĞ, HAKAN BAŞAR, ABDÜLKADİR MISIR (2022). Biomechanical and fracture characteristics of different filling and fixation methods applied to various proximal tibial metaphyseal defect sizes in an ovine model. Clin Biomech (Bristol, Avon). 93:105597. doi: 10.1016/j.clinbiomech.2022.105597.
29. BETÜL BAŞAR, HAKAN BAŞAR (2022). The effects of full weight-bearing mobilization on clinical outcomes and subsidence in cemented and uncemented hemiarthroplasty in osteoporotic patients: A retrospective single-center study. J Back Musculoskelet Rehabil. 35(4):811-818. doi: 10.3233/BMR210024.
30. FEYZİ KILIÇ, ABDÜLKADİR POLAT, FATİH YAMAK, ERGÜN BOZDAĞ, FIRAT FİDAN, HAKAN BAŞAR (2023). Biomechanical comparison of fixation methods on third-generation femoral composite bone models in Pauwels type 3 femoral neck fractures: Contribution of the medial buttress plate to fixation. Acta Orthop Traumatol Turc. 57(5):243-249. Doi: 10.5152/j.aott.2023.22127.
31. MELİKE MERCAN BAŞPINAR, ZARAFET BBİRER, SEVGİ DEMİRAY, HAKAN BAŞAR, GÖKHAN TOLGA ADAŞ (2024). A Hospital-Based Nursing Study on Intention to Leave Job and Nurse-Physician Collaboration. Wiley Nursing Forum Volume 2024, Doi: 10.1155/2024/9503988

Articles Published in National Peer-Reviewed Journals (Articles Published in National Peer-Reviewed Journals)

32. AĞIR İSMAİL, TETİK CİHANGİR, EROL BÜLENT, BAŞAR HAKAN (2010). Evaluation of cases of osteoid osteoma located in the hand phalanx in terms of late diagnosis (Klinik ve Deneysel Araştırmalar Dergisi, 1(3), 206-210. Doi: http://dx.doi.org/10.5799/ahinjs.01.2010.03.0042).
33. BAŞAR HAKAN, AĞIR İSMAİL, TOPKAR OSMAN MERT, TETİK CİHANGİR (2012). Results of perilunate dislocation treatment with volar approach using K-wire (Hand Microsurgery, 1(1), 17- 21. Doi: 10.2399/emd.12.96168).
34. İNANMAZ MUSTAFA ERKAN, SARMAN HAKAN, ŞİMŞEK İBRAHİM ENGİN, BAŞAR HAKAN, USLU MUSTAFA, KÖSE KAMİL ÇAĞRI (2013). Comparison of the Effects of Biomechanical Simulation in Orthosis Design and Standard Technique in the Treatment of Adolescent Idiopathic Scoliosis: First Results (Abant Tıp Dergisi, 2(2), 119-122. Doi: 10.5505/abantmedj.2013.55707).
35. BAŞAR HAKAN, İNANMAZ MUSTAFA ERKAN, BAŞÇI ONUR, BAWANEH MOTASIM, BAŞAR BETÜL, KÖSE KAMİL ÇAĞRI (2014). Closed Extension Block Technique for Treatment of Osseous Mallet Injury (Sakarya Medical Journal, 4(1), 10-13., Doi: 10.5505/sakaryamj.2013.31644).
36. BAŞAR HAKAN, İNANMAZ MUSTAFA ERKAN, BAŞAR BETÜL, ERĞAN VOLKAN, KAPLAN TOLGA, KÖSE KAMİL ÇAĞRI (2014). Arthroscopic Reconstruction of Anterior Cruciate Ligament Tears with Quadruple Autogenous Hamstring Tendon Graft (Konuralp Tıp Dergisi, 6(1), 47-52).
37. BAŞAR HAKAN, BAŞAR BETÜL, İNANMAZ MUSTAFA ERKAN, KAPLAN TOLGA, BAŞÇI ONUR (2014). Comparison of whether the effectiveness of arthroscopic surgery in partial and full-thickness rotator cuff tears is as successful as in the treatment of subacromial impingement syndrome (Marmara Medical Journal (27), 116-120. Doi: 10.5472/MMJ.2014.03156.1).
38. GÖKHAN ÖZKAZANLI, HAKAN BAŞAR. Evaluation of current literature on nonunion and delayed union in patella fractures – current treatment approaches (TOTBİD Dergisi 2017; 16:573–576. Doi: 10.14292/totbid.dergisi.2017.76).
39. MEHMET ÖZBEY BÜYÜKKUŞÇU, SEÇKİN BASILGAN, ABDÜLHAMİT MISIR, ABDÜLKADİR POLAT, HAKAN BAŞAR (2021). Factors associated with the development of screw cut-out after the fixation of intertrochanteric femoral fractures with a proximal femoral nail (J Health Sci Med 4(2): 170-175. Doi: 10.32322/jhsm.860548).
40. MEHMET ÖZBEY BÜYÜKKUŞÇU, MUHAMMED BİLAL KÜRK, YAKUP ALPAY, SEÇKİN BASILGAN, HAKAN BAŞAR (2021). Clinical Outcomes of Total Hip Arthroplasty in Unilateral Crowe Type IV Hip Dysplasia (J Acad Res Med 2021;11(1):5-10. Doi: 10.4274/jarem.galenos.2020.3864).
41. MEHMET ÖZBEY BÜYÜKKUŞÇU, ASLI BÜYÜKKUŞÇU, BETÜL BAŞAR, HAKAN BAŞAR (2021). Relationship of serum vitamin D level with the clinical course of Adhesive Capsulitis (Ann Med Res 28(4):827-30. Doi: 10.5455/annalsmedres.2020.01.085).
42. MELİKE MERCAN BAŞPINAR, AYSEL GÜDEN, MUSTAFA ÇALIK, OSMAN MAVİŞ, SADETTİN KAMAT, HAKAN BAŞAR (2024). Determination of malnutrition, frailty, polypharmacy, multimorbidity, and mortality risk in hospitalized elderly COVID-19 pneumonis cases with and without possible sarcopenia (Turkish Journal of Geriatrics 27(3):239−247. Doi: 10.29400/tjgeri.2024.397)