Browsing by Author "Demiralp, Bahtiyar"

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    Comparing Dimensions of Four-Strand Hamstring Tendon Grafts with Native Anterior and Posterior Cruciate Ligaments
    (HINDAWI LTD, 2016-01-01) Yilmaz, Baris; Ozdemir, Guzelali; Keskinoz, Elif N.; Tumentemur, Gamze; Gokkus, Kemal; Demiralp, Bahtiyar
    Background. The aim of the study was to evaluate whether or not there was any incompatibility between four-strand hamstring tendons taken from the same knee and the dimensions of the ACL and PCL. Methods. 15 fresh frozen cadaver hamstrings were prepared as four-strand grafts and measurements made of the ACL and PCL circumferences in the midsection were made in the narrowest part of the midsection. The cross-section areas and diameters were calculated with geometric calculations used to measure the cross-sectional area of cylinders. Accepting that the geometric insertions were elliptical, the length, width, and area were calculated for entry areas. Results. A significant relationship at 96.2\% was determined between the ACL mid and the hamstring diameter. A significant relationship at 96.7\% was determined between the ACL and the hamstring mid area. A significant relationship at 96.4\% was determined between the PCL mid and the hamstring diameter. A significant relationship at 95.7\% was determined between the PCL and the hamstring mid area. Conclusion. For the reconstruction of ACL and PCL, it was determined that there is less incompatibility between the four-strand hamstring tendons taken from the same knee and the dimensions of the midsection PCL compared to the ACL dimensions.
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    Is denervation surgery possible in the treatment of hallux rigidus? An anatomic study of cadaveric specimens
    (TURKISH ASSOC ORTHOPAEDICS TRAUMATOLOGY, 2021-01-01) Catal, Bilgehan; Keskinbora, Mert; Keskinoz, Elif Nedret; Tumentemur, Gamze; Azboy, Ibrahim; Demiralp, Bahtiyar
    Objective: The aim of this study was to provide anatomic considerations in the first metatarsophalangeal joint (FMPJ) innervation and to evaluate the feasibility of the denervation surgery in the treatment of hallux rigidus. Methods: In this cadaveric study, 14 fresh frozen cadaveric transtibial amputation specimens was used. For nerve dissection, dorsal and plantar longitudinal incision centered over the FMPJ were performed. Deep peroneal and dorsomedial cutaneous nerves were dissected in the dorsal aspect of the joint. Medial plantar nerve branches, medial and lateral hallucal nerves, were dissected in the plantar aspect of the joint. The presence, number, and location of articular branches to the FMPJ capsule were recorded. Dorsal and plantar incision length for proper dissection were also recorded. Results: Nerve dissection of the 14 specimens revealed the following number of articular branches from the relevant nerves: 14 from dorsomedial cutaneous nerves, 11 from deep peroneal nerves, 6 from medial hallucal nerve, and 5 from lateral hallucal nerve. Dorsal incision mean length was 60.53 (range, 42.48-85.12) mm, and the plantar incision mean length was 88.08 (range, 77.32-111.21) mm. Conclusion: Evidence from this study has shown that partial dorsal denervation of the FMPJ may be a technically feasible procedure along with the presence of superficially easily dissected nerves with relatively small incision.