Prof. Dr. Mehmet Müfit Orak

Turkish Medical Association

Turkish Orthopaedics and Traumatology Association (TOTDER)

Turkish Society of Orthopaedics and Traumatology (TOTBİD)

Turkish Pediatric Orthopedics Association

Pediatric Orthopedics Association

Children’s Orthopedics Association

Children’s Orthopedics Association

Thesis Title: Investigation of the Effects of Nonsteroidal Anti-Inflammatory Drugs on Fracture Healing (Experimental Study), Istanbul University, Cerrahpaşa Faculty of Medicine, Department of Orthopedics and Traumatology, 2001.

Thesis Supervisor: Assoc. Prof. Dr. Fahri Erdoğan

International Peer-Reviewed Journal Articles

A1. Orak MM, Onay T, Gümüştaş SA, Gürsoy T, Muratlı HH. Is prematurity a risk factor for developmental dysplasia of the hip? A prospective study. The Bone & Joint Journal, 97(5), 716–720 (2015). DOI: 10.1302/0301-620X

A2. Uludağ S, Seyahi A, Orak MM, Bilgili MG, Çolakoğlu B, Demirhan MS. The effect of gestational age on sonographic screening of the hip in term infants. The Bone & Joint Journal, 95(2), 266–270 (2013). DOI: 10.1302/0301-620X.95B2.30798

A3. Gümüştaş SA, Tosun HB, Ağır İ, Orak MM, Onay T, Okçu G. Influence of number and orientation of screws on stability in the internal fixation of unstable femoral neck fractures. Acta Orthopaedica et Traumatologica Turcica, 48(6), 673–678 (2014). DOI: 10.3944/AOTT.2014.14.0088

A4. Erdoğan F, Kesmezacar H, Ögüt RT, Orak MM, Tenekecioğlu Y. The use of a modified Weber technique for high tibial osteotomy. Acta Orthopaedica et Traumatologica Turcica, 37(1), 26–32 (2003). DOI: 10.3944/aott.v37i1.850

A5. Gümüştaş SA, Orak MM, Onay T, Bulut G. Late developmental dysplasia of the hip that was sonographically determined to be stable at first examination: A case report. JBJS Case Connector, 3(4), 114–114 (2013). DOI: 10.2106/JBJS.CC.M.00148

A6. Karaman Ö, Özkazanlı G, Orak MM, Mutlu S, Mutlu H, Çalışkan G, Karakuş Ö, Saygı B. Factors affecting postoperative mortality in patients older than 65 years undergoing surgery for hip fracture. Turkish Journal of Trauma and Emergency Surgery, 21(1), 44–50 (2015). DOI: 10.5505/tjtes.2015.02582

A7. Çağırmaz T, Yapıcı C, Orak MM, Güler O. Bilateral femoral neck fractures after an epileptic attack: A case report. International Journal of Surgery Case Reports, 6(1), 107–110 (2015). DOI: 10.1016/j.ijscr.2014.12.003

A8. Orak MM, Ak D, Midi A, Karakoyun B, Purisa S, Bulut G. Comparison of chronic effects of intra-articular tenoxicam, diclofenac and methylprednisolone on healthy rats. Acta Orthopaedica et Traumatologica Turcica, 49(4), 438–446 (2015). DOI: 10.3944/AOTT.2015.14.0312

A9. Orak MM, Onay T, Çağırmaz T, Elibol C, Elibol F, Centel T. The reliability of ultrasonography in developmental dysplasia of the hip: How reliable is it in different hands? Indian Journal of Orthopaedics, 49(6), 610 (2015). DOI: 10.4103/0019-5413.168753

A10. Gümüştaş SA, Ekmekçi B, Tosun HB, Orak MM, Bekler Hİ. Similar effectiveness of the open versus endoscopic technique for carpal tunnel syndrome: A prospective randomized trial. European Journal of Orthopaedic Surgery & Traumatology, 25(8), 1253–1260 (2015). DOI: 10.1007/s00590-015-1696-0

A11. Orak MM, Karaman O, Gürsoy T, Çağırmaz T, Oltulu I, Muratlı HH. Effect of increase in birth weight in a newborn on hip ultrasonography. Journal of Pediatric Orthopaedics B, 24(6), 507–510 (2015). DOI: 10.1097/BPB.0000000000000206

A12. Orak MM, Gümüştaş SA, Onay T, Uludağ S, Bulut G, Türkbörü Ü. Comparison of postoperative pain after open and two-portal endoscopic carpal tunnel release: A randomized prospective controlled study. Indian Journal of Orthopaedics, 50(1), 65–69 (2016). DOI: 10.4103/0019-5413.173509

A13. Gümüştaş SA, Çağırmaz T, Orak MM, Pehlivanoğlu G, Öktem S. Cystic tuberculosis osteomyelitis of the distal tibia in infancy. Turkish Archives of Pediatrics, 52(1), 53 (2017). DOI: 10.5152/TurkPediatriArs.2017.2479

A14. Karakuş O, Karaman O, Sarı AS, Orak MM, Muratlı HH. Is it difficult to obtain inter-observer agreement in the measurement of the beta angle in ultrasound evaluation of the pediatric hip? Journal of Orthopaedic Surgery and Research, 14(1), 1–8 (2019).

A15. Karahan N, Arslan I, Öztürkmen A, Orak MM, Midi A, Alp Yücel II. Comparison of intra-articular application of polydeoxyribonucleotide and hyaluronic acid in experimentally induced osteoarthritis in rats. Journal of Musculoskeletal Research, 23(03), 2050009 (2020). DOI: 10.1142/S0218957720500116

A16. Arslan İ, Yücel I, Öztürk TB, Karahan N, Orak MM, Midi A. The effects of corticosteroid injection in the healthy and damaged Achilles tendon model: Histopathological and biomechanical experimental study in rats. Turkish Journal of Pathology, 36(1), 039–047 (2020). DOI: 10.5146/tjpath.2019.01468

A17. Solak K, Yücel I, Karaduman ZO, Arda S, Orak MM, Midi A. Histological comparison of nanocomposite multilayer biomimetic scaffold, a chondral scaffold, and microfracture technique to repair experimental osteochondral defects in rats. The Eurasian Journal of Medicine, 52(2), 145 (2020). DOI: 10.5152/eurasianjmed.2019.19077

International Scientific Meeting Presentations Published in Proceedings

B1. Okan N, Orak MM. Accompanying pathologies, knee structures and treatment methods in congenital dislocation of the knee. European Paediatric Orthopaedic Society (EPOS) 27th Annual Meeting, 2(S1), 25 (2008). (Oral Presentation) DOI: 10.1007/s11832-008-0086-0

B2. Gümüştaş SA, Tosun HB, Ağır İ, Orak MM, Onay T, Okçu G. Influence of number and orientation of screws on stability in the internal fixation of unstable femoral neck fractures. 16th EFORT Congress, Prague (2015). (Poster Presentation)

B3. Onay T, Gümüştaş SA, Aydemir N, Orak MM. Do the risk factors for developmental dysplasia of the hip differ according to gender? A different perspective. AAOS Annual Meeting, New Orleans (2018). (Oral Presentation)

National Peer-Reviewed Journal Articles

D1. Erdoğan F, Orak MM, Aktaş Ş, Türeci E, Olgaç NV, Kabasakal L, Aydıngöz Ö. Effect of hyperbaric oxygen therapy on incorporation of autoclaved autogenous bone graft in rats (experimental study). Acta Orthopaedica et Traumatologica Turcica, 32(3), 226–231 (1998). DOI: 10.3944/aott.v32i3.2256

D2. Gümüştaş SA, Bulut G, Orak MM, Çağırmaz T, Onay T, Bekler Hİ. Short-term evaluation of factors affecting the success of Pavlik harness treatment in developmental dysplasia of the hip. Kartal Training and Research Hospital Medical Journal, 26(1), 7–12 (2015). DOI: 10.5505/jkartaltr.2015.19480

D3. Onay T, Orak MM, Oltulu İ, Çağırmaz T, Gümüştaş SA, Bulut G, Bekler Hİ. Effect of bone mineral density on functional and radiological outcomes in conservatively treated distal radius fractures. Turkish Journal of Osteoporosis, 21, 54–59 (2015). DOI: 10.4274/tod.63825

D4. Külcü NU, Orak MM, Gerenli N, Sarı E, Say A. Knowledge level of pediatricians regarding developmental dysplasia of the hip in a training hospital. The Journal of Current Pediatrics, 13(2), 89–96 (2015). DOI: 10.4274/jcp.37029

Papers Presented at National Scientific Meetings and Published in Proceedings:

E1. Bilsel SN, Mumcuoğlu E, Orak MM. Our results of total hip arthroplasty in patients with JRA. Program & Abstract Book, p.59. 2nd Cerrahpaşa Locomotor System Days (1998). (Oral Presentation)

E2. Hız M, Beyzadeoğlu TB, Orak MM, Mandel NK, Dinçbaş HF, Dervişoğlu S. Treatment of synovial sarcoma cases. Abstract Book, p.42. 3rd Turkish Orthopedic Oncology Congress (2000). (Oral Presentation)

E3. Hız M, Orak MM, Ekici H, Beyzadeoğlu TB. Reconstruction of bone defects with massive allografts. Abstract Book, p.55. 3rd Turkish Orthopedic Oncology Congress (2000). (Oral Presentation)

E4. Hız M, Orak MM, Beyzadeoğlu TB, Öğüt RT. Reconstruction of bone cavities with cancellous allografts. Abstract Book, p.55. 3rd Turkish Orthopedic Oncology Congress (2000). (Oral Presentation)

E5. Öğüt RT, Akgün I, Orak MM, Yücel İİA. Arthroscopic treatment of localized pigmented villonodular synovitis. Abstract Book, p.121. 5th Turkish Sports Injuries Arthroscopy and Knee Surgery Congress (2000). (Oral Presentation)

E6. Öğüt RT, Akgün I, Orak MM, Yücel İİA. Arthroscopic lifting technique in the treatment of tibial plateau fractures. Abstract Book, p.175. 5th Turkish Sports Injuries Arthroscopy and Knee Surgery Congress (2000). (Poster Presentation)

E7. Orak MM, Kesmezacar H, Öğüt RR, Yücel B, Ağrıtmış A, Erdogan F. Investigation of the effects of nonsteroidal anti-inflammatory drugs on fracture healing. Congress Book, p.7. 18th National Turkish Orthopedics and Traumatology Congress (2003). (Poster Presentation)

E8. Yapıcı C, Orak MM, Ofluoğlu Ö, Arman MA. Paget’s disease mimicking a malignant bone tumor located in the sacrum: a case report. 21st National Turkish Orthopedics and Traumatology Congress. Acta Orthop Traumatol Turc, 43(Suppl 1), 190–191 (2009). (Poster Presentation)

E9. Ofluoğlu Ö, Orak MM, Yapıcı C, Donthineni R. Diffuse pigmented villonodular synovitis of the knee: evaluation of 14 cases. 21st National Turkish Orthopedics and Traumatology Congress. Acta Orthop Traumatol Turc, 43(Suppl 1), 193 (2009). (Poster Presentation)

E10. Gümüştaş SA, Bulut G, Orak MM, Erdağ Y, Bekler Hİ. Factors affecting treatment duration and success of Pavlik harness in developmental dysplasia of the hip. 22nd National Turkish Orthopedics and Traumatology Congress. Acta Orthop Traumatol Turc, 45(Suppl 1), 33 (2011). (Oral Presentation)

E11. Onay T, Bulut G, Orak MM, Bekler Hİ. Effect of bone mineral density on outcomes in conservatively treated distal radius fractures in patients over 50 years old. 22nd National Turkish Orthopedics and Traumatology Congress. Acta Orthop Traumatol Turc, 45(Suppl 1), 129 (2011). (Oral Presentation)

E12. Gümüştaş SA, Orak MM, Uludağ S, Bulut G. Comparison of pain after open and endoscopic carpal tunnel release: a prospective randomized controlled study. 23rd National Turkish Orthopedics and Traumatology Congress. Acta Orthop Traumatol Turc, 47(Suppl 1), 183–184 (2013). (Poster Presentation)

E13. Orak MM, Gümüştaş SA, Yanık E, Pehlivanoğlu G. Acute suppurative tuberculosis osteomyelitis of the distal tibia in infancy. 23rd National Turkish Orthopedics and Traumatology Congress. Acta Orthop Traumatol Turc, 47(Suppl 1), 285 (2013). (Poster Presentation)

E14. Orak MM, Karaman Ö, Gürsoy T, Çağırmaz T, Oltulu İ, Muratlı HH. Is birth weight a risk factor for developmental dysplasia of the hip? 23rd National Turkish Orthopedics and Traumatology Congress. Acta Orthop Traumatol Turc, 47(Suppl 1), 297 (2013). (Poster Presentation)

E15. Orak MM, Karaman Ö, Gürsoy T, Oltulu İ, Çağırmaz T, Muratlı HH. Effect of increased birth weight on hip ultrasonography in newborns. Proceedings Book, p.31. Orthopedics and Traumatology Istanbul Meeting 2014 (2014). (Oral Presentation)

E16. Onay T, Orak MM, Çağırmaz T, Gümüştaş SA, Ak D, Muratlı HH. Analysis of risk factors for DDH in 4415 infants examined by hip ultrasonography and the role of clinical examination in diagnosis. Proceedings Book, p.32. Orthopedics and Traumatology Istanbul Meeting 2014 (2014). (Oral Presentation)

E17. Gümüştaş SA, Tosun HB, Uludağ A, Orak MM. Cubital tunnel syndrome due to heterotopic ossification: a case report. El ve Mikrocerrahi, 2(2), 67 (2014). Doi:10.2399/emd.13.13022. (Poster Presentation)

E18. Gümüştaş SA, Ağır İ, Orak MM, Uludağ A. Scapho-capitate arthrodesis with enchondoplasty in Lichtman stage 3A Kienböck disease. El ve Mikrocerrahi, 2(2), 66 (2014). Doi:10.2399/emd.13.13022. (Poster Presentation)

E19. Gümüştaş SA, Orak MM, Onay T, Bulut G. Late developmental dysplasia of the hip after sonographically stable initial examination: a case report. 24th National Turkish Orthopedics and Traumatology Congress. Acta Orthop Traumatol Turc, 48(Suppl 1), 220–221 (2014). (Poster Presentation)

E20. Gümüştaş SA, Ekmekçi B, Orak MM, Tosun HB. EMG evaluation of open versus double-portal endoscopic release in carpal tunnel syndrome: randomized prospective controlled study. 24th National Turkish Orthopedics and Traumatology Congress. Acta Orthop Traumatol Turc, 48(Suppl 1), 93 (2014). (Oral Presentation)

E21. Gümüştaş SA, Tosun HB, Ağır İ, Orak MM, Onay T, Okçu G. Effect of screw number and orientation on stability in internal fixation of unstable femoral neck fractures: a biomechanical study on synthetic bone model. 24th National Turkish Orthopedics and Traumatology Congress. Acta Orthop Traumatol Turc, 48(Suppl 1), 46 (2014). (Oral Presentation)

E22. Bayram Bİ, Orak MM, Şahin E, Seçkin B, Özkaya O. A rare case presenting with hip pain: slipped capital femoral epiphysis. Program & Abstract Book, p.122. 2nd Marmara Pediatrics Congress (2015). (Poster Presentation)

E23. Gümüştaş SA, Orak MM, Çağırmaz T, Bekler Hİ. Traumatic hip dislocation after minimal trauma in a pediatric patient: case report. Orthopedics and Traumatology Istanbul Meeting 2015 (2015). (Poster Presentation)

E24. Solak K, Alp Yücel İİ, Karaduman ZO, Orak MM, Midi A. Comparison of nano-composite multilayer biomimetic scaffold, chondral scaffold, and microfracture in an experimental full-thickness osteochondral defect model in rats. Program Book, p.77, 26th National Turkish Orthopedics and Traumatology Congress (2016). (Oral Presentation)

E25. Orak MM, Onay T, Çağırmaz T, Elibol C, Dinç Elibol F, Centel T. Reliability of hip ultrasonography in developmental dysplasia of the hip: how reliable is it between different examiners? Proceedings Book, p.14, 2nd National Pediatric Orthopedics Congress (2018). (Oral Presentation)

E26. Orak MM, Onay T, Gümüştaş SA, Gürsoy T, Muratlı HH. Is prematurity a risk factor for developmental dysplasia of the hip?: a prospective study. Proceedings Book, p.32, 2nd National Pediatric Orthopedics Congress (2018). (Oral Presentation – First Prize Award)

E27. Celayir A, Orbay T, Moralıoğlu S, Bosnalı O, Orak MM. Preliminary results of bilateral anterior iliac osteotomy for pubic diastasis in bladder and cloacal exstrophy cases. Proceedings Book, p.52, 2nd National Pediatric Orthopedics Congress (2018). (Poster Presentation)

E28. Onay T, Gümüştaş SA, Çağırmaz TA, Aydemir AN, Orak MM. Can risk factors for developmental dysplasia of the hip differ according to gender? A different perspective. Program Book, p.74, 28th National Turkish Orthopedics and Traumatology Congress (2018). (Oral Presentation)

E29. Karakuş Ö, Arslan İ, Orak MM, Muratlı HH. Is there correlation between orthopedic professors, specialists, and residents in pediatric hip ultrasonography evaluation? Program Book, p.87, 28th National Turkish Orthopedics and Traumatology Congress (2018). (Oral Presentation)

E30. Onay T, Gümüştaş SA, Çağırmaz TA, Aydemir AN, Orak MM. Can risk factors for developmental dysplasia of the hip differ according to gender? A different perspective. Proceedings Book, p.36, 3rd National Pediatric Orthopedics Congress (Virtual, 2020). (Oral Presentation)

Publications in National Journals:

F1.1. Okan N, Orak MM. Congenital knee dislocation. TOTBİD Journal, 8(3–4), 24–29 (2009).

F1.2. Orak MM, Onay T. Ultrasonographic evaluation in developmental dysplasia of the hip. TOTBİD Journal, 13(5), 381–388 (2014). Doi: 10.14292/totbid.dergisi.2014.43

F1.3. Karahan N, Orak MM. Current classification systems in cerebral palsy. TOTBİD Journal, 20(3), 288–296 (2021). Doi: https://doi.org/10.14292/totbid.dergisi.2021.50