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Dive into the research topics where Turker Ozkan is active.

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Featured researches published by Turker Ozkan.


Plastic and Reconstructive Surgery | 2000

Comparison between Sensitive and Nonsensitive Free Flaps in Reconstruction of the Heel and Plantar Area

İsmail Kuran; Gürsel Turgut; Lütfü Baş; Turker Ozkan; Oya Bayri; Ayan Gulgonen

In this study, 12 cases of reconstruction of the heel and plantar area since 1982 are reviewed. Six nonsensate muscle free flaps and six sensate fasciocutaneous flaps were used, respectively. Categories assessed were the time interval for return to daily living activities, sensation to light touch, pinprick, Semmes-Weinstein monofilament test of the reconstructed area for sensory evaluation; and results of pedograms (maximal pressure, pressure distribution, and total contact area of the plantar surface). Follow-up periods were between 2 and 14 years, with an average of 6 years. Better sensory results and early return to daily living activities were observed in the sensate flap group, but the defects were smaller in this group. Despite the slightly longer time to return to daily living activities and worse sensory results, long-term follow-up showed that patients with nonsensate flaps had no difficulty in performing living activities if they continued to be careful and to use some kind of protective shoes. The results of the pedogram analyses were similar between the two groups with regard to total contact area of the reconstructed foot in relation to the healthy foot. Pressure values of the reconstructed areas in sensate flaps were found to be close to pressure values in the same weight areas of the normal foot. The differences between pressure values of the sensate and nonsensate flaps were statistically significant (p < 0.001). Therefore, in reconstruction of the weight-bearing surface of the foot, each case should be evaluated individually. The reconstructive method should be chosen according to the location and soft-tissue requirements of the defect.


Acta Orthopaedica et Traumatologica Turcica | 2010

The results of surgical repair of sciatic nerve injuries

Atakan Aydin; Turker Ozkan; Hasan Utkan Aydin; Murat Topalan; Metin Erer; Safiye Ozkan; Zeynep Hoşbay Yıldırım

OBJECTIVES The aim of this study was to evaluate surgical treatment and follow-up results of patients who presented to our department with sciatic nerve injuries. METHODS The study included 13 patients (12 males, 1 female; mean age 23 years; range 11 to 35 years) who underwent surgical treatment for sciatic nerve injuries. The etiologies of sciatic nerve injuries were penetrating trauma in five patients, firearm injuries in four patients, and motor vehicle accidents in four patients. Injuries involved the knee level in five patients, and above-the-knee level in eight patients. Peroneal nerve involvement was seen in all the patients, and the tibial nerve was involved in 11 patients. Primary repair was performed in six patients, neurolysis in three patients, and nerve grafting in three patients. One patient underwent neurolysis for the peroneal portion, and nerve grafting for the tibial portion. Muscle strength and reflex changes were recorded at every stage of the treatment. Muscle strength was assessed according to the British Medical Research Council scale. The Semmes-Weinstein monofilament test was used for sensory evaluation. The mean follow-up period was 4 years (range 1 to 6 years). RESULTS In 11 patients with tibial nerve injuries, the soleus/gastrocnemius strength was measured as follows: M1 in one patient, M3 in four patients, M4 in four patients, and M5 in two patients. Plantar sensation was absent in four patients, while seven patients had at least adequate protective sensation. In 13 patients with a peroneal nerve injury, the strength of the anterior tibial muscle was measured as follows: M0 in three patients, M2 in three patients, M3 in one patient, M4 in three patients, and M5 in three patients. Of these, four patients had persistent insensitivity in the dorsum of the foot, while six patients had protective sensation, and three patients had normal sensation. Two patients with inadequate anterior tibial muscle strength following nerve repair underwent posterior tibial tendon transfer for restoration of foot dorsiflexion. The greatest functional improvement was obtained in cases in which neurolysis was performed; patients undergoing primary repair had better outcomes compared to those where nerve grafts were used. The results were better in thigh level injuries than those in the gluteal region. CONCLUSION Low expectations after sciatic nerve repair in the past are now being rapidly replaced by a more optimistic approach. Advances in microsurgery and use of treatment algorithms based on scientific research account for this significant improvement in outcomes after sciatic nerve surgery. Tendon transfers can enhance the success rate and be combined with nerve repair in selected cases.


Journal of Trauma-injury Infection and Critical Care | 2011

Fractures of the fingers missed or misdiagnosed on poorly positioned or poorly taken radiographs: a retrospective study.

Serdar Tuncer; Neslihan Aksu; Halil Dilek; Turker Ozkan; Azmi Hamzaoglu

BACKGROUND Missed fractures, the most common diagnostic error in emergency departments, are usually the result of a misread radiograph or the failure to obtain a radiograph. However, a poorly positioned or poorly taken radiograph may also result in diagnostic errors. We sought to analyze the frequency of missed or misdiagnosed finger fractures that could be attributed to inadequate radiographs. METHODS We reviewed the medical records of the hand surgery divisions of Istanbul Bilim University Medical Faculty Hospital and the Orthopedics Department of Private Florence Nightingale Hospital between January 2008 and March 2010 for patients with fractures of the fingers that had been missed or misdiagnosed on the basis of inadequate radiographs. RESULTS In 182 patients, we identified 7 missed and 7 misdiagnosed fractures of the fingers because of inadequate radiographs. Lack of a true lateral radiographic view of the fingers or a true anteroposterior radiographic view of the thumb was the most frequent reason for diagnostic errors (71%; 10 of 14), leading to missed fractures in six patients and to misdiagnosed fractures in four patients. Superimposition of the fingers on lateral radiographs led to misjudging of displaced proximal phalangeal fractures of the fifth finger in three patients. CONCLUSION Diagnostic errors attributed to inadequate radiographs are rare. Proper radiographic evaluation of finger trauma requires at least true anteroposterior and lateral views. An oblique view can complement the lateral view but not replace it. Poor quality radiographs or inadequate views should never be accepted or used as a basis for treatment.


Techniques in Hand & Upper Extremity Surgery | 2005

Brachioradialis transposition for elbow extension in obstetrical brachial plexus palsy.

Turker Ozkan; Ayhan Okumuş; Atakan Aydin; Safiye Ozkan; Serdar Tuncer

Disorders of elbow extension occur following traumatic or neurologic injuries of the triceps muscle. Restoration of elbow extension is an integral part of the entire upper extremity surgical reconstruction to improve the following daily activities: bringing down an object from above, handwriting, using the hand in the supine position, steering a wheelchair, driving a car, and swimming. The transfer of the posterior head of the deltoid muscle to triceps (Moberg procedure) and the transfer of the biceps to triceps (Friedenberg procedure) are previously described procedures for the functional restoration of triceps function. In conditions where these procedures cannot be used, we describe a new technique for restoration of elbow extension. In 4 cases with obstetrical palsy sequela, where shoulder abduction was established with the latissimus dorsi and teres major transfer, restoration of elbow extension was planned to aid in activities performed while the hand is above the head. To achieve this goal, the brachioradialis muscle was transposed bipedically to the triceps muscle.


Journal of Plastic Reconstructive and Aesthetic Surgery | 2013

Free pre-expanded lateral circumflex femoral artery perforator flap for extensive resurfacing and reconstruction of the hand

Emre Hocaoğlu; Atilla Arinci; Ömer Berköz; Turker Ozkan

Resurfacing and reconstruction of extensive scars, severe contractures and deformities of the hand are still challenging cases for plastic surgeons. Treatments usually necessitate thin, pliable and broad flaps. Additionally, minimising the donor-site morbidity is an indisputable requisite. The pre-expanded perforator flap technique has been shown to provide extensive, thin and pliable skin with increased vascularity while reducing the donor-site morbidity. Utilisation of free pre-expanded lateral circumflex femoral artery perforator flap in an aesthetic and functional reconstruction of severe post-burn hand deformity is demonstrated. The successful functional and aesthetic outcome that was achieved in the early postoperative period and which still persists after 23 months of follow-up indicates that our technique could be preferably used in the extensive coverage of the hand.


Journal of Hand Surgery (European Volume) | 2013

Brachialis muscle transfer to the forearm for the treatment of deformities in spastic cerebral palsy

Turker Ozkan; Ahmet Biçer; H. U. Aydin; Serdar Tuncer; Atakan Aydin; Z. Y. Hosbay

The use of the brachialis muscle for tendon transfers in cerebral palsy has not been described previously. In this study, the brachialis muscle was used for transfer in 11 patients with spastic cerebral palsy for the restoration of forearm supination, wrist extension, or finger extension. Four patients underwent brachialis rerouting supinatorplasty. Active supination increased in two (60° and 50°), minimally increased in one (5°), and did not change in one patient. Five patients had a brachialis to extensor carpi radialis brevis transfer. The mean gain in postoperative active wrist extension was 65°. Two patients with finger flexion deformity and no active metacarpophalangeal joint movement underwent a brachialis to extensor digitorum communis transfer, and they attained an improved posture of finger extension although their postoperative metacarpophalangeal flexion–extension movement arc was 5° and 25°. None of the patients developed any loss of active flexion at the elbow. Our preliminary experience suggests that the brachialis muscle may serve as an alternative tendon transfer in cerebral palsy.


BMC Musculoskeletal Disorders | 2011

Does primary brachial plexus surgery alter palliative tendon transfer surgery outcomes in children with obstetric paralysis

Atakan Aydin; Ahmet Biçer; Turker Ozkan; Berkan Mersa; Safiye Ozkan; Zeynep Hoşbay Yıldırım

BackgroundThe surgical management of obstetrical brachial plexus palsy can generally be divided into two groups; early reconstructions in which the plexus or affected nerves are addressed and late or palliative reconstructions in which the residual deformities are addressed. Tendon transfers are the mainstay of palliative surgery. Occasionally, surgeons are required to utilise already denervated and subsequently reinnervated muscles as motors. This study aimed to compare the outcomes of tendon transfers for residual shoulder dysfunction in patients who had undergone early nerve surgery to the outcomes in patients who had not.MethodsA total of 91 patients with obstetric paralysis-related shoulder abduction and external rotation deficits who underwent a modified Hoffer transfer of the latissimus dorsi/teres major to the greater tubercle of the humerus tendon between 2002 and 2009 were retrospectively analysed. The patients who had undergone neural surgery during infancy were compared to those who had not in terms of their preoperative and postoperative shoulder abduction and external rotation active ranges of motion.ResultsIn the early surgery groups, only the postoperative external rotation angles showed statistically significant differences (25 degrees and 75 degrees for total and upper type palsies, respectively). Within the palliative surgery-only groups, there were no significant differences between the preoperative and postoperative abduction and external rotation angles. The significant differences between the early surgery groups and the palliative surgery groups with total palsy during the preoperative period diminished postoperatively (p < 0.05 and p > 0.05, respectively) for abduction but not for external rotation. Within the upper type palsy groups, there were no significant differences between the preoperative and postoperative abduction and external rotation angles.ConclusionsIn this study, it was found that in patients with total paralysis, satisfactory shoulder abduction values can be achieved with tendon transfers regardless of a previous history of neural surgery even if the preoperative values differ.


Journal of Foot & Ankle Surgery | 2013

A distinctive presentation of diplopodia: a Y-metatarsal combining the extra foot and the extra digit of the main foot.

Emre Hocaoğlu; Ömer Berköz; Yunus Doğan; Turker Ozkan

Diplopodia is a rare congenital anomaly and has been described as extra digits, metatarsals, and tarsal bones that form an extra foot or foot-like structure. Various skeletal deformities and anomalies involving other organ systems can accompany diplopodia. Treatment consists of surgery, splinting, and physical therapy, planned according to each patients specific condition. We present a patient who had diplopodia with distinctive anatomic features (with postaxial polydactyly and without any anomaly of the tibia or fibula) compared with the previously reported cases, and concomitant anomalies, including left renal agenesis and anal atresia.


Annals of Plastic Surgery | 2011

Evaluation of patients undergoing removal of glass fragments from injured hands: a retrospective study.

Serdar Tuncer; Ismail Bulent Ozcelik; Berkan Mersa; Fatih Kabakas; Turker Ozkan

The hand is the body part most frequently injured by broken glass. Glass fragments lodged in soft tissues may result in numerous complications, such as infection, delayed healing, persistent pain, and late injury as a result of migration. Between 2005 and 2010, we removed 46 glass particles from the hands of 26 patients. The injuries were caused by the following: car windows broken during motor vehicle accidents in 11 patients (42%); fragments from broken glasses, dishes, or bottles in 9 (35%); the hand passing through glass in 5 (19%); and a fragment from a broken fluorescent lamp in 1 (4%) patient. Despite the efficacy of plain radiographs in detecting glass fragments, these are sometimes not obtained. Given the relatively low cost, accessibility, and efficacy of radiographs, and the adverse consequences of retained foreign bodies, the objections to obtaining radiographs should be few in diagnosing glass-related injuries of the hand.


Microsurgery | 2016

Distally based subcutaneous veins for venous insufficiency of the reverse posterior interosseous artery flap

Burhan Özalp; Hüseyin Elbey; Atakan Aydin; Turker Ozkan

The reverse posterior interosseous artery flap (PIAF) provides soft, thin, and pliable tissue for upper extremity reconstruction without sacrificing any major arteries of the hand. The authors performed a new technique that included one extra distally based subcutaneous vein within the pedicle to diminish venous insufficiency and they aimed to present the results of reconstruction with this technique.

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