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    Arthroscopic removal of an ununited ossicle due to persistent Osgood Schlatter disease
    (2013) Erkoçak, Ömer Faruk; Aydın, Kerem; Altan, E.; Acar, Mehmet Ali
    Although conservative measures are usually sufficient, sometimes surgery may be required in the management of unresolved adult type Osgood Schlatter (OS) disease. The most widely used procedure consists of the excision of ossicles with or without removal of the prominent tibial tubercle. For this purpose we used an arthroscopic technique. Low anterolateral and anteromedial portals were used for this operation. After the fat pad and soft tissue debridement, the ossicle became visualiable and removed by a motorized burr. Post operatively patient allowed full weight bearing and unrestricted range of motion. Postoperatively at the sixth week he reported complete resolution of his knee pain and his pleasure about the surgery. This technique showed that arthroscopic removal of persistent OS ossicle is more benefical than the open procedure.
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    Arthroscopic Retrograde Fixation of A Hoffa Fracture With an Accompanying Medial Plateau Fracture
    (2012) Altan, Egemen; Şenaran, Hakan; Aydın, Kerem; Acar, Mehmet Ali; Erkoçak, Ömer Faruk
    Unicondylar lateral coronal plane fractures (Hoffa fractures) are uncommon and commonly treated with open reduction and internal fixation through a wide lateral or parapatellar approach because of difficulty in accessing the fracture. The accompanying medial tibial plato fracture is also an extreme case, and such a fracture pattern has not been reported in the literature so far. In our case report, after a motor vehicle accident, a 32-year-old man suffered a Hoffa fracture and a medial tibial plato fracture of his left knee. Reduction and fixation were performed under arthroscopic visualization through the standard portals. Reduction was achieved using a pair of towel forceps as a fulcrum to elevate the fragment through the lateral portal. After confirmation of anatomic reduction with arthroscopy, 2 divergent headless compression screws were inserted into the fracture through an accessory lateral portal with the knee hyperflexed. The concomitant medial tibial plato fracture was treated with a buttress plate, and reduction was confirmed arthroscopically. The fracture healed clinically and radiographically at 3 months, and the patient had no limitation of motion and was back at work. Thus, an undesired extensive arthrotomy over the joint was avoided with this technique for a better outcome.
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    Artroskopik omuz cerrahisinde genel anesteziye ek olarak yapılan ultrason eşliğinde interskalen brakial pleksus bloğunun postoperatif ağrı üzerine etkisi
    (2018) Çiçekci, Faruk; Yıldırım, Ahmet; Önal, İbrahim Özkan; Acar, Mehmet Ali; Çelik, Jale Bengi; Kara, İnci
    GİRİŞ ve AMAÇ: Bu araştırmanın amacı, artroskopik omuz cerrahisi uygulanan hastalarda ultrason eşliğinde interskalen brakiyal pleksus blok (İSBPB) ve genel anestezi (GA) sonrası postoperatif intravenöz hasta kontrollü analjezi (HKA) uygulamalarının postoperatif erken dönemde (24 saat) görsel analog skorlarını (VAS) karşılaştırmaktır. YÖNTEM ve GEREÇLER: Bu retrospektif bir çalışmadır. Çalışmaya, Ağustos 2016 ile Ağustos 2017 tarihleri arasında elektif artroskopik omuz cerrahisi için İSBPB GA (Grup İSBPB) ve GA (Grup GA) uygulanan 98 hasta dahil edildi. Postoperatif 30 dk, 2., 6., 12. ve 24. saatlerde dinlenme ve aktivite sırasındaki görsel analog skalası (VAS) ile ağrı skorları, tüketilen toplam morfin miktarı ve ilk analjezi gereksinimi zamanı hasta kontrollü analjezi cihazı ile değerlendirildi. BULGULAR: Hastaların demografik özellikleri benzerdi (p0.05). Dinlenme ve aktif VAS skorları açısından zaman açısından iki grup arasında istatistiksel olarak anlamlı fark vardı (p 0.001). VAS skorları İSBPB grubunda ilk 12 saatte GA grubuna göre daha düşüktü (p 0.001). Toplam tüketilen morfin miktarı daha düşüktü ve analjezi gereksinimi zamanı İSBPB grubunda GA grubuna göre çok daha fazla idi (p 0.001). Ancak iki grup arasındaki komplikasyonlarda anlamlı fark yoktu (p 0.05). SONUÇ: Artroskopik omuz ameliyatı sonrası ağrı düzeyi, İSBPB'nin ağrı kesici ilaç tedavisinde GA'ye üstün etkisi olduğunu, ancak İSBPB'nin postoperatif komplikasyonlar açısından GA'ye benzer olduğunu gösterilmiştir.
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    Clinical comparison of hook plate fixation versus extension block pinning for bony mallet finger: a retrospective comparison study
    (SAGE PUBLICATIONS LTD, 2015) Acar, Mehmet Ali; Güzel, Yunus; Güleç, Ali; Uzer, Gökçer; Elmadağ, Nuh Mehmet
    The aim of this retrospective study was to determine whether traumatic mallet fractures had better outcomes when treated by hook plate fixation (13 patients) or extension block pinning (19 patients). We assessed outcomes using Crawford's criteria; distal interphalangeal joint range of motion; the DASH score; and a visual analogue scale score for pain. We measured radiological parameters. No significant differences were observed in functional and clinical outcomes and in complications. Whereas the operative time was longer in the hook plate group, intraoperative fluoroscopy use, time to bone union and time to return to work were greater in the extension block group. Although the hook plate method is more technically demanding, it provides good stable reduction, earlier mobilization and an earlier return to work. The extension block pinning technique is easier and as effective but it requires greater peri-operative fluoroscopy.
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    Closed extensor indicis proprius tendon rupture presenting mass clinic on dorsal side of the wrist
    (2013) Kütahya, Harun; Güleç, Ali; Acar, Mehmet Ali; Güzel, Yunus; Karalezli, Mustafa N.; Toker, Serdar
    A 28 years old male constructor referred to our clinic for a mass on the dorsal side of the left wrist. He has constricted his hand to the plaster cast machine in hyperflexion posture one month ago and swelling complaint has begun one week ago. MRI revealed tenosynovitis. A wide organized hematoma was appeared in the 4th extensor compartment in the surgical exploration of the patient and it was observed that extensor indicis proprius tendon has detached from the musculotendineous region. Common extensor tendon of the second finger was intact. Tenodesis to the distal end of the ruptured tendon to the intact common extensor tendon by side to side surgical suture technique was performed. There were complete extension in the 2nd finger at the 2nd month after the surgery.
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    Closed extensor ındicis proprius tendon rupture presenting mass clinic on dorsal side of the wrist
    (2013) Kütahya, Harun; Güleç, Ali; Acar, Mehmet Ali; Güzel, Yunus; Karalezli, Mustafa N.; Toker, Serdar
    28 yaşında erkek işçi sol el bileğinde kitle şikayeti ile kliniğimize başvurdu. Hasta 1 ay önce elini hiperfleksiyon pozisyonun- da alçı karıştırma makinesine sıkıştırmış ve 1 hafta önce de şişlik şikayeti başlamış. MRG'de tenosinıvit gözlendi. 4. ekstensör kompartmanın cerrahi eksplorasyonunda geniş organize hematom ve ekstensör indicis proprius tendonunun muskulotendinöz bölgeden koptuğu görüldü. İşaret parmağı kommon ekstensör tendonunun sağlam olduğu görüldü. Kopuk olan ekstensör tendonun distal ucu yan-yana cerrahi dikiş tekniği kullanılarak sağlam olan kommon ekstensör tendona tenodez yapıldı. Ameliyat sonrası 2. ayda işaret parmağında tam ekstansiyon mevcuttu.
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    Comment on: "Developmental dysplasia in male infants: risk factors, instability and ultrasound screening"
    (WICHTIG EDITORE, 2012) Acar, Mehmet Ali; Altan, Egemen
    [Abstract not Available]
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    Comparison of lateral versus triceps-splitting posterior approach in the surgical treatment of pediatric supracondylar humerus fractures
    (TURKISH ASSOC TRAUMA EMERGENCY SURGERY, 2016) Turkmen, Faik; Toker, Serdar; Kesik, Kayhan; Korucu, Ismail Hakki; Acar, Mehmet Ali
    BACKGROUND: Supracondylar humerus fracture is the most common fracture of the elbow in children. Closed reduction and per cutaneous pinning is considered to be the optimal treatment strategy; however, in some instances, open reduction may be necessary. The aim of this retrospective study was to compare clinical and functional results of triceps-splitting posterior versus lateral approach in pediatric supracondylar humerus fracture surgery. METHODS: A total of 38 patients underwent surgery; Group I consisted of 30 patients on whom posterior approach was used, while lateral approach was used on the 8 patients in Group 2. Flynn criteria were used to evaluate cosmetic and clinical results. Fracture healing was assessed with anteroposterior and lateral x-rays. Patients and parents were asked to describe time needed for complete return of full elbow range of motion (ROM) and overall satisfaction. RESULTS: Mean fracture union time was 44.1 days and 46.3 days, and time required to regain complete or near complete elbow ROM was 57.5 days and 55.7 days after splint removal for Group I and Group 2, respectively. Twenty-one of 30 (70%) patients (and parents) in Group I, and 6 of 8 (75%) patients (and parents) in Group 2 were totally satisfied with the results. Twenty-one of 30 (70%) patients in Group I, and 6 of 8 (75%) patients in Group 2 had excellent cosmetic and functional results according to Flynn outcome criteria. CONCLUSION: In cases of pediatric supracondylar humerus fracture, early closed reduction and percutaneous pinning is preferred; however, when this method is not applicable, triceps-splitting posterior approach is a safe and comparable method to lateral approach with advantages of easier fracture reduction and shorter operating time.
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    Comparison of monoplanar versus biplanar medial opening-wedge high tibial osteotomy techniques for preventing lateral cortex fracture
    (SPRINGER, 2017) Türkmen, Faik; Kaçıra, Burkay Kutluhan; Özkaya, Mustafa; Erkoçak, Ömer Faruk; Acar, Mehmet Ali; Özer, Mustafa; Toker, Serdar
    The purpose of this study was to investigate the mechanical strength of both monoplanar and biplanar medial opening-wedge high tibial osteotomy (MOWHTO) procedures and assess the risk of lateral cortex disruption for both techniques. Twelve synthetic tibia models with cortical shells were used as test models. Saw cuts for monoplanar MOWHTO and biplanar MOWHTO were generated on the test models in equal numbers (n = 6 for both groups). Wedge opening load and wedge gap distance were evaluated via compressive tests. The mean gap distance just before the lateral cortex fracture in the monoplanar group was 14.7 +/- 2.9 mm, which was significantly narrower than that in the biplanar group of 19.1 +/- 2.0 mm (p = 0.015). The mean load just before the occurrence of lateral cortex fracture of 32.4 +/- 3.2 N in the monoplanar osteotomy group was significantly lower than that in the biplanar osteotomy group of 111.8 +/- 9.3 N (p = 0.009). Performing a MOWHTO via the biplanar rather than the monoplanar technique allows larger-sized wedges to be opened with less risk of lateral cortical fracture. Thus, larger gaps can be opened and higher angle corrections can be achieved using the biplanar osteotomy procedure. From a clinical viewpoint, the biplanar osteotomy technique reduced the risk of lateral cortical hinge fracture during MOWHTO.
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    Does femoral back wall failure affect the functional results of arthroscopic anterior cruciate ligament surgery?
    (EDIZIONI MINERVA MEDICA, 2013) Elmadağ, Mehmet; Erdil, Mehmet; Bilsel, Kerem; Acar, Mehmet Ali; Tuncay, I.; Yel, M.
    Aim. The aim of the study was to evaluate the effects of femoral back wall failure (FBWF) due to tunnel enlargement after anterior cruciate ligament (ACL) surgery on clinical outcomes. Methods. The functional results of 40 ACL reconstructions were evaluated prospectively. The study includes ACL reconstructions with transtibial single bundle technique with hamstring autografts whereas those with concomitant knee ligament injuries were excluded. Tunnel enlargements were measured with CT scan at the end of the 12th month after surgery Functional results were evaluated at the first year follow-up by an anterior drawer test, Lachman test, rollimeter, IKDC, and Lysholm Knee Scale. Results. Femoral and tibial tunnel enlargement was measured in all of our patients with 39% mean enlargement in femoral tunnels and 48% in tibial tunnels. No significant correlation between amount of tunnel enlargement and clinical outcomes was obtained. Additionally, no significant correlation between tibial fixation type and tibial tunnel enlargement was found (P>0.05). In nine patients (22.5%), FBWF was evaluated. These nine patients did not show any significant difference in clinical outcomes than the other 31 patients (P>0.05). Conclusion. Excessive femoral tunnel enlargements after ACL surgeries may lead FBWF. This pathology does not affect clinical outcomes. However, FBWF with bone defect may cause more complicated ACL revision surgery. This fact must be kept in mind by orthopedic surgeons.
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    Effect of Ankaferd blood stopper (R) on tendon healing: an experimental study in a rat model of Achilles tendon injury
    (TURKISH JOINT DISEASES FOUNDATION, 2015) Aydin, Bahattin Kerem; Altan, Egemen; Acar, Mehmet Ali; Erkocak, Omer Faruk; Ugras, Serdar
    Objectives: This in vivo study aims to investigate the effects of Ankaferd Blood Stopper (R) (ABS) which is a recently developed topical hemostatic agent on tendon healing using a rat Achilles tendon injury model. Materials and methods: Twelve male Wistar-Albino rats were used in the study. Right legs of the rats were assigned as the study group, and left legs were assigned as the control group. Under anesthesia, bilateral Achilles tendon injuries were created and repaired surgically. To the surgical sites, 1 mL of ABS for the right side and 1 mL of serum physiologic solution for the left side were applied. Animals were euthanized on the 21st postoperative day, and tendon samples were collected from the extremities. Histological analyses were performed according to the semiquantitative tendon scoring system (Bonar Scale). Results: Total tendon healing scores were significantly poorer in the study group compared to the control group. Although there were no significant differences between the groups in terms of tenocyte morphology, degree of ground substance staining, and vascularity, the collagen morphology scores were significantly poorer in the study group. Conclusion: In our study, application of ABS had histologically negative effect on tendon healing in rats. However, further biomechanical and immune histochemical studies are required to support these results.
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    Effect of Ankaferd blood stopper on tendon healing: An experimental study in a rat model of Achilles tendon injury
    (2015) Aydın, Bahattin Kerem; Altan, Egemen; Acar, Mehmet Ali; Erkoçak, Ömer Faruk; Ugraş, Serdar
    Amaç: Bu in vivo çalışmada yeni geliştirilen topikal bir hemostatik ajan olan Ankaferd Kanama Durdurucu nun (ABS) sıçan Aşil tendon yaralanma modeli kullanılarak tendon iyileşmesi üzerine etkileri araştırıldı. Gereç ve yöntemler: Çalışmada 12 erkek Wistar-Albino sıçan kullanıldı. Sıçanların sağ bacakları çalışma grubu, sol bacakları kontrol grubu olarak belirlendi. Anestezi altında iki taraflı Aşil tendon yaralanmaları oluşturuldu ve cerrahi olarak tamir edildi. Cerrahi sahalara sağ taraf için 1 mL ABS, sol taraf için ise 1 mL serum fizyolojik solüsyonu uygulandı. Hayvanlara ameliyat sonrası 21. günde ötenazi yapıldı ve ekstremitelerden tendon örnekleri alındı. Histolojik analizler yarı kantitatif tendon skorlama sistemine (Bonar Sınıflaması) göre yapıldı. Bulgular: Toplam tendon iyileşmesi skorları çalışma grubunda kontrol grubuna göre anlamlı şekilde kötüydü. Tenosit morfolojisi, esas madde boyama derecesi ve vaskülarite açısından gruplar arasında anlamlı farklılık olmasa da kollajen morfolojisi skorları çalışma grubunda anlamlı şekilde kötüydü. Sonuç: Çalışmamızda, ABS uygulaması sıçanlarda tendon iyileşmesi üzerinde histolojik olarak olumsuz etkiye sahipti. Öte yandan, bu sonuçları desteklemek için ileri biyomekanik ve immünohistokimyasal çalışmalar gereklidir.
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    The effect of hyaluronan combined with microfracture on the treatment of chondral defects: An experimental study in a rabbit model
    (2013) Tuncay, İbrahim; Erkoçak, Ömer Faruk; Acar, Mehmet Ali; Toy, Hatice
    Because articular hyaline cartilage has low potential for regeneration, numerous methods and techniques have been proposed to induce the reparation process. Microfracture is a convenient procedure for this purpose. However, the quality of the new cartilage after microfracture is still not as proper as original. In this experimental study, we used microfracture in combination with intraarticular application of hyaluronan in rabbit knee articular defect. Bilateral knee arthrotomies, chondral defects, and microfracture were created on each intercondylar notch in thirty rabbits. Rabbits received intraarticular injections of hyaluronan once a week for 3 weeks in the right knee, started from 1 week after injury. The left knees, which served as controls, were injected with normal saline. Biopsy was taken from both knees at the 4th and 6th weeks. In comparison with the control group, after 6 weeks we observed a higher potential for healing in the experimental group, with thicker and more organized repair tissue filling the defect. The current study reveals that application of hyaluronan after the microfracture might be beneficial in inducing articular cartilage defect reparation. © 2012 Springer-Verlag.
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    The Efficacy of Surgical Treatment for Kienböck’s Disease with 4-5 ECA Pedicled Osseous Flap: A Retrospective Study
    (Selçuk Üniversitesi, 2023 Ağustos) Özdemir, Ali; Ergin, Musa; Ertaş, Erkan Sabri; Acar, Mehmet Ali
    Aim: The aim of this retrospective study is to assess the effectiveness of surgical intervention for Kienböck’s disease using 4-5 Extensor Compartmental Artery (4-5 ECA) pedicled osseous flap. Method: Patients who underwent 4-5 ECA pedicled bone grafts for Kienböck’s disease between January 2012 and January 2022 were included in the study. The patient files were analyzed retrospectively for age, gender, follow-up time, and complications. Disease staging was performed preoperatively using direct X-ray and MRI, and radiological improvement was evaluated postoperatively using radiography. The functional and clinical assessment was made by comparing preoperative and postoperative VAS, Q-Dash, and Mayo scores. Results: This study included 23 patients (12 female and 11 male) with Kienböck’s disease who underwent 4-5 ECA pedicled bone graft surgery. 13 cases were right side- left side handed while 10 were left-handed. The mean age was 37.5 ± 12.5 years, and the mean follow-up time was 68 months. The mean preoperative Q-Dash score was 78.8 (± 9), the VAS score was 6.5 (±1.2, and the Mayo wrist score was 34.34 (±11.8). The mean postoperative Q-Dash score was 33.1(±10), the VAS score was 2.4 (±1.7), and the Mayo wrist score was 73.9 (±14.5). The differences between preoperative and postoperative Q-DASH scores (p<0.05), VAS scores (p<0.05), and Mayo wrist scores (p<0.05) were statistically significantly improved. Disease progression was observed in only two patients based on the Lichtman Classification in their follow-up radiographs. Conclusion: Our study demonstrates that the surgical treatment of Kienböck’s disease using a 4-5 ECA pedicled osseous flap is a reliable and effective surgical treatment option.
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    Ipsilateral total hip replacement for femoral neck fracture in an above-the-knee amputee patient
    (Edizioni Minerva Medica, 2014) Acar, Mehmet Ali; Erkoçak, Ömer Faruk; Aydın, Kerem; Yılmaz, G.; Güleç, Ali
    [Abstract not Available]
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    Karpal tünel cerrahisi sonrası tetik parmak gelişmesi ; koinsidans mı?, sonuç mu?
    (Selçuk Üniversitesi Sağık Bilimleri Enstitüsü, 2009) Acar, Mehmet Ali; Öğün, Tunç Cevat
    Karpal tünel sendromu (KTS) ve tetik parmak aynı elde görülebilir. Ancak, aralarındaki ilişki tam olarak ortaya konamamıştır. Bu çalışmada idiyopatik KTS olan bir elde tetik parmak gelişimini etkileyebilecek faktörlerin varlık ve nedenselliği sorgulanmıştır. İleriye dönük bu çalışma ameliyat grubu (126 hasta, 175 el) ve konservatif gruba ayrılan (81 hasta, 147 el) hastalarda yapıldı. İlk başvuruda cinsiyet, yaş, dominant el, KTS' nun şiddeti, VAS skoru, fizik muayene bulguları, tetik parmak varlığı veya geçmişi, ENMG sonuçları ile varsa yapılan tedaviler kaydedildi. Tüm hastaların 1,3,6,12,24. ay VAS skorları sorgulandı, fizik muayeneleri yapıldı, tetik parmak gelişip gelişmediği kaydedildi. Ameliyat sonrası 1. ve 12. aylarda tüm hastalara ENMG çekildi. Ameliyat grubunda tetik parmak gelişimi konservatif gruba göre istatistiksel anlamlı olarak artmıştı. Ameliyat grubu içerisinde de önkol fasyası ve transvers karpal ligamanın (TKL) beraber kesildiği grupta tetik parmak gelişimi yalnız TKL kesilen gruba göre anlamlı olarak artmıştı.
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    Medial opening wedge high tibial osteotomy fixation with short plate without any graft, synthetic material or spacer
    (SAGE Publications Ltd, 2014) Türkmen, Faik; Sever, Cem; Kaçıra, Burkay Kutluhan; Demirayak, Mehmet; Acar, Mehmet Ali; Toker, Serdar
    Objectives: Medial opening-wedge high tibial osteotomy (MOWHTO) is an effective surgical procedure for patients who have medial compartmental osteoarthritis of the knee with varus deformity of the limb. The abnormal load on the medial compartment of the knee relocates to the lateral compartment with this procedure. A gap occurs on the proximal tibia during the correction of varus deformity. Filling this gap with bone grafts or synthetic materials has gained wide acceptance for preventing nonunion or osteotomy site collapse. The aim of this study is to report our results of MOWHTOs performed without any bone graft or any other synthetic materials. Methods: We evaluated 41 MOWHTOs performed between 2009 and 2012 with no use of bone grafts, synthetic materials or spacers. Age of the patients ranged from 43 to 67. Thirty five of the patients were female and 3 of them were male. The follow-up time was 6 months. Results: There were no any non-unions or loss of correction. The mean bone union time was 12,8 weeks. No major complications were seen. Conclusion: The results of our study has shown that achieve satisfactory results can be obtained in MOWHTO without using any bone graft, synthetic materials or spacer. © The Author(s) 2014.
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    Medial opening-wedge high tibial osteotomy fixation with short plate without any graft, synthetic material or spacer
    (Springer-Verlag France, 2014) Türkmen, Faik; Sever, Cem; Kaçıra, Burkay Kutluhan; Demirayak, Mehmet; Acar, Mehmet Ali; Toker, Serdar
    Purpose: Medial opening-wedge high tibial osteotomy (MOWHTO) is an effective surgical procedure for patients who have medial compartmental osteoarthritis of the knee with varus deformity of the limb. The abnormal load on the medial compartment of the knee is directed to the lateral compartment with this procedure. A gap occurs on the proximal tibia while providing adequate correction. Filling this gap with bone grafts or synthetic materials has gained wide acceptance for preventing bone union problems or osteotomy site collapse. The aim of this study is to report our results of MOWHTOs performed without any bone graft or any other synthetic materials.Methods: We evaluated 41 MOWHTOs that have been performed between 2009 and 2012 with no use of any grafts or synthetic materials and spacer. Age of the patients ranged from 43 to 67. Thirty-five of the patients were females and three of them were males. The follow-up time was 6 months.Results: Seven knees had opening at the osteotomy site <10 mm, 26 knees had 10–12.5 mm, and eight knees had >12.5 mm (range 7.5–14 mm, mean 11.07 mm). All osteotomies united without loss of correction. The mean bone union time was 12.8 weeks. We did not have any major complication regarding the technique.Conclusion: The results of our study have shown that we can achieve satisfactory and good results by performing MOWHTO procedure without using any bone grafts or synthetic materials and spacer. © 2014, Springer-Verlag France.
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    Methyl methacrylate in external fixation of supracondylar humerus fractures: An experimental study
    (SAGE PUBLICATIONS LTD, 2018) Gulec, Ali; Acar, Mehmet Ali; Aydin, Bahattin Kerem; Demir, Teyfik; Ozkaya, Mustafa
    Supracondylar humerus fractures are common fractures around the elbow. Open fractures, comminuted metaphyseal fractures and also fractures with bone loss may need to be treated with external fixators. The aim of this study is to compare two different external fixators, tubular external fixators and polymethyl methacrylate with K wires external fixators, with regard to stiffness and stability for metaphyseal-diaphyseal osteotomies of distal humerus close to the joint. Six matched pairs (24 specimens) of second-generation sawbone humerus were prepared in a standard fashion to create a metaphyseal fracture, 5cm proximal to the distal joint line of humerus and were randomly divided into two groups of 12 specimens each. Each sawbone humerus was osteotomized transversely at the mid-olecranon fossa with a 2-mm oscillating saw to simulate a Gartland type III fracture. The osteotomy was then reduced and stabilized using two different external fixation methods: carbon tubular external fixator with Schanz screws and methyl methacrylate with multiple K wires. Three-point bending and torsion tests were performed on the specimens. Bending and torsional stiffness of specimens were obtained for the fixation methods. According to the results of the study, the methyl methacrylate group has provided higher stiffness than classical tubular fixator with Schanz screws in three-point bending test (7.79 +/- 2.33N/mm vs 3.78 +/- 1.18N/mm, p=0.006). The methyl methacrylate group also showed better stiffness in torsion test (0.12 +/- 0.042Nm/degrees vs 0.067 +/- 0.013Nm/degrees, p=0.02). We determined for the first time in literature that external fixation with methyl methacrylate was significantly superior to the classical tubular external fixator with Schanz screws with regard to stiffness and stability under three-point bending and torsional loads. Moreover, methyl methacrylate is inexpensive and easily applied.