
Murat KayalarEMOT HOSPİTAL · upper extremity surgery
Murat Kayalar
Ass Prof.
FESSH Board-certified Hand Surgeon, Upper Extremity
About
57
Publications
16,275
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614
Citations
Citations since 2017
Introduction
Upper extremity surgery and microsurgery
Additional affiliations
February 1998 - September 2021
EMOT HOSPITAL
Position
- Professor (Associate)
Description
- I am working as an upper extremity surgeon. My main interests are microsurgery, arthroscopy, and trauma surgery.
Education
September 1991 - August 1997
Publications
Publications (57)
Background
We created patient-based 3D finite-element (FE) models that simulate the congruent-arc Latarjet (CAL) and traditional Latarjet (TL) procedures and then compared their stress distribution patterns with different arm positions and glenoid defects.
Methods
The computed tomography data of 10 adult patients (9 men and 1 woman, ages: 18–50 ye...
Objective:
The aim of this study was to analyze and classify hypertrophy seen in vascularized fibula flaps used for reconstruction of tubular bone defects.
Methods:
Thirty-three patients who underwent a vascularized fibula flap for the reconstruction of massive bone defects of the upper or lower extremity long bones were retrospectively reviewed...
Objectives:
The aim of this study was to evaluate the functional results of delayed open reduction and Kirschner wire (K-wire) fixation procedures in patients with delayed presentation of bony mallet finger.
Patients and methods:
Between February 2009 and November 2019, a total of 19 patients (15 males, 4 females; median age: 24.8 years; range,...
Objective:
The aim of this study was to analyze the outcomes of revision surgery following replantation of single digital amputations.
Methods:
In this study, first, a total of 403 patients (339 male, 64 female; mean age=28 years; age range=1-76) in whom a single finger replantation was performed were retrospectively reviewed, and then 60 patien...
Purpose:
To compare five different repair techniques for extensor tendon zone III modified Kessler (MK), double-modified Kessler (DMK), modified Kessler epitendinous (MKE), double-modified Kessler epitendinous (DMKE), and running-interlocking horizontal mattress (RIHM) in terms of shortening, stiffness, gap formation, and ultimate load to failure....
Purpose:
If there are no veins available in a distal amputation, an artery-only replantation is performed, and an external bleeding method is commonly used. We conducted a survival analysis in a large series of artery-only replantations and compared 2 different external bleeding methods in artery-only distal replantations: nail matrix or hyponychi...
We present the treatment course of a 29-year-old male patient with for a Type 3 FDP avulsion (Jersey's finger) of a fifth finger treated with umbrella handle technique. The patient had a volar base fracture of distal phalanx with dorsal subluxation of DIP joint after a fall. Following open reduction of the FDP avulsion fracture and fixation was ach...
Objective
There has been no consensus in literature for the ideal flexor tendon repair technique. The results of zone 2 flexor tendon lacerations repaired primarily by 4 strand Modified Kessler core suture and epitendinous interlocking suture technique followed by Modified Kleinert protocol were investigated.
Methods
128 fingers of 89 patients who...
We report techniques and survival incidence of three subtotally and nine completely degloved fingers in seven patients. We performed end-to-end arterial repairs in seven fingers, vein graft repairs for arteries in two fingers, arteriovenous anastomoses in three fingers. End-to-end vein anastomosis was performed in all fingers. One finger requred re...
Introduction The purpose of this retrospective study, is to evaluate the clinical and functional results of early surgical fixation of the ipsilateral distal radius and scaphoid fractures in 22 of 21 patients.
Patients and Methods Overall, 22 combined ipsilateral scaphoid, and distal radius fracture treatments between 2002 and 2015 were evaluated....
Synovial chondromatosis is the process of progressive metaplasia associated with formation of cartilage in synovial membranes of joints, tendon sheaths or bursae. It is a rare, chronic, benign disease with unknown etiology which involves single joint. It is generally seen in large joints like knee, hip and, ankle. Wrist involvement is very rare. Mo...
Objective:
The purpose of this study was to document a new complication in volar locking plating of the distal radius.
Methods:
Between January 2007 and January 2014, 223 patients were identified from the department's surgical database with retrospective chart and radiographic review. Sixty-eight patients were over 60 years of age. All fractures...
Optimal wrist function requires stability of the carpal components in all joint positions under static and dynamic conditions. Stability is achieved by a sophisticated geometry of articular surfaces and an intricate system of ligaments, retinacula, and tendons. Instability of the wrist is a condition of altered joint kinematics in which one or seve...
Venous flaps are flaps by which tissue perfusion is accessed through the venous network. Despite originally being questioned due to potential perfusion problems; as the dynamics of tissue perfusion have been more fully comprehended, venous flaps appear to have a far wider range of application than first thought. In our study we analyzed the clinica...
Multiple soft tissue finger defects in different shapes and locations are usually difficult to manage. Such defects commonly involve tendons and bones. Palmar soft tissue defects may also lead to vascular compromise. In this retrospective report, we report the results of seven patients with multiple soft tissue finger defects that were covered by s...
Traumatic hemipelvectomy is a severe, life-threatening injury, mainly occurring due to machinery injury or traffic accident. Few cases have been published in the literature. Treatment requires a rapid, multidisciplinary team approach which will result in the saving of the patient's life. We present the outcome of a male patient with traumatic hemip...
Objective:
The aim of this study was to review the results of patients with Wassel type IV thumb duplication, treated with a single reconstructive procedure.
Methods:
The mean follow-up period was 76.9 months. Objective assessments were carried out using Horii modification of Tada scoring system and ALURRA scoring system. Thumb length, thumb gir...
Optimal wrist function requires stability of the carpal components in all joint positions under static and dynamic conditions. Stability is achieved by a sophisticated geometry of articular surfaces and an intricate system of ligaments, retinacula, and tendons. Instability of the wrist is a condition of altered joint kinematics in which one or seve...
The aim of this study was to sonographically evaluate the anatomy of the transverse carpal ligament (TCL) after open surgical release in the treatment of carpal tunnel syndrome (CTS) and to establish new ultrasonographic criteria for the completeness of TCL release.
Thirty-six patients who underwent open surgical release for CTS were recruited pros...
The aim of this study was to evaluate the results of limb salvage and primary amputation treatments in patients with Type 3C tibia fractures and compare with normative population data.
Limb salvage was performed in 20 patients and primary amputation in 14 patients with Type 3C tibia fractures between 1993 and 2009. Mean follow-up period was 5.3 yea...
In this study, we aimed to compare the clinical and functional results of patients treated with dorsal or volar percutaneous screw fixation for acute scaphoid fractures.
We retrospectively evaluated 27 wrists of 26 patients (24 males, 2 females; mean age: 33.1 years) who underwent dorsal or volar percutaneous screw fixation for acute scaphoid fract...
This study aims to compare the functional results of dynamic compression plates (DCP) and interlocked retrograde intramedullary nails (IRIN) used for the treatment of humeral shaft nonunions.
Twenty-six patients (12 males, 14 females; mean age, 42.8 years; range 21 to 61 years) who underwent surgical treatment of humeral shaft nonunion either with...
Optimal wrist function requires stability of the carpal components in all joint positions under static and dynamic conditions. Stability is achieved by a sophisticated geometry of articular surfaces and an intricate system of ligaments, retinacula and tendons. Instability of the wrist is a condition of altered joint kinematics in which one or sever...
The aim of this study was to analyze the complications and functional and radiographic results of volar locking plating in the treatment of unstable distal radius fractures.
Forty-six patients (mean age: 48.7 years) with Type C distal radius fractures were treated with volar locking plates and evaluated over a mean follow-up period of 19 months. Ra...
The aim of this study was to evaluate the effect of surgical repair of the medial collateral ligament and ulnar nerve release in cases of terrible triad injuries of the elbow.
This study included 16 patients (average age: 34 years) who underwent surgery following a diagnosis of terrible triad injury of the elbow between 1996 and 2007. Average follo...
The aim of this study was to evaluate the results and complications of free vascularized fibular grafting (FVFG) for the reconstruction of bone defects in Gustilo Type 3 open tibia fractures.
Free vascularized fibular grafting was performed on open tibia fractures with a bone defect of an average of 10 (range: 6 to 18) cm in 21 patients (19 males,...
The purpose of this study was to retrospectively evaluate the clinical and functional results of nerve grafting and end-to-end peroneal nerve repair between sciatic bifurcation and distal branching.
The study included 26 patients (22 men, 4 women; mean age: 19.9 years; range: 5 to 46 years) who underwent peroneal nerve repair between 1992 and 2009....
The aim of this retrospective cross-sectional study was to assess vascular repair modalities and function in type IV ring finger replantations. Thirty-seven of 43 patients with complete ring avulsion amputations were replanted. After resection of the damaged arterial segments under microscopic magnification the arterial flow pattern was evaluated....
The aim of this study was to retrospectively review the results of homodigital reverseflow proximal or middle phalanx dorsal skin island flaps.
We reviewed the overall results of 67 dorsal skin flap reconstructions performed on 61 proximal phalanxes and 6 middle phalanxes at our hospital during an 11 year period. The results were evaluated with sta...
Several treatment modalities which targeted partial matrixectomies, including chemical, laser matrixectomy, and partial nail avulsion, have been used in the dermatology, podiatry, and orthopaedic literature. We report our experience with surgical matrixectomy.
We treated 224 patients with severe ingrowing toenails. Segmental wedge resection of invo...
Aim
The aim of this study was to identify risk factors for hand amputations using the records of a hospital in Turkey specialising in hand and microsurgery.
Method
This is a restrospective analytical chart study. We analysed 6549 hand injuries treated between 1992 and 2005. Researchers coded the variables “intent”, “activity when injured”, “mechan...
Fixation of unstable distal radius fractures with palmar locking plates provides a stable reduction and early return of function, but complications arising from unrecognized dorsally prominent screws penetrating the extensor compartments are increasingly reported. Standard radiographs and fluoroscopy may not adequately visualize screw lengths, owin...
We analysed 6549 hand injuries treated between 1992 and 2005 at a specialist hospital in Turkey to identify risk factors for amputations. There were 2899 (44%) hand amputations. Left-side injuries were more prone to amputation. The risk of amputation was higher in men, workers and those in the 15-24 and 45-54 year-old age groups. Compared to home,...
This study aimed to evaluate the functional results of end-to-end repairs in radial nerve injuries.
The study included 18 (15 males, 3 females) patients who underwent middle level end-to-end radial nerve repair and who responded to our final follow-up call. Patients' average age was 30 (range: 16 to 43) years. The average time lapse between injury...
The aim of this study was to evaluate the epidemiology of injuries treated at a hand and microsurgery hospital between 1992 and 2005.
This is a descriptive retrospective study based on medical records of a hand and microsurgery hospital in İzmir for the years 1992-2005. A total of 8,946 injuries involving 8,817 patients were included. Data on diagn...
The purpose of this study was to determine the validity of ultrasonography (USG) with surgical confirmation in surgically treated zone 2 flexor tendon injuries.
Between 2003 and 2008, zone 2 flexor tendon repairs of 30 patients were evaluated with real-time USG when there was a loss of motion and prediagnosis of rupture or adherence in follow-up. T...
In this study we aimed to evaluate the results of the direct-flow neurovascular island flap (NIF) transfers in pulp defects.
We reviewed the records of 96 patients with 115 NIF transfers performed for pulp defect reconstruction. The injury mechanism was crush type injury in 70 patients (72.9%). Ninety-three patients (97%) were emergency cases. Pulp...
A variety of flaps have been described to treat longitudinal soft tissue defects located on the dorsal aspect of the fingers. We report 13 dorsal soft tissue defects in four patients in which unipedicle laterodigital transposition flaps were used for reconstruction. This flap is especially useful for the reconstruction of long and narrow defects lo...
We prospectively studied 26 consecutive patients with clinically documented sensory or motor deficiency of a peripheral nerve due to trauma or entrapment using ultrasound, and in 19 cases surgical exploration of the nerves was undertaken. The ultrasonographic diagnoses were correlated with neurological examination and the surgical findings. Reliabl...
We evaluated late-term results of surgical repair and physical rehabilitation of isolated zone 3 extensor tendon injuries.
Sixteen patients (13 males, 3 females; mean age 28 years; range 11 to 57 years) underwent surgical repair for isolated simple central slip injuries of zone 3 extensor tendon. Injuries involved the second, third, fourth, and fif...
The aim of this study was to evaluate long-term clinical and functional results of major upper extremity replantations.
We retrospectively evaluated 26 male patients (mean age 27 years; range 3 to 69 years) who underwent major upper extremity replantations and had a mean follow-up of 11.3 years (range 5 to 19 years). The levels of the replantations...
We evaluated the indications and disadvantages of percutaneous technique for proximal humerus fractures in relation to complications encountered in osteoporotic elderly patients and the importance of patient selection.
The study included 18 patients (10 men, 8 women; mean age 48 years; range 14 to 89 years) who underwent percutaneous fixation (clos...
This study involves the results of open elbow arthrolysis performed on a series of patients having fixed joint contracture.
Eighteen patients were treated with open arthrolysis. Eleven patients had very severely stiff elbows (flexion arc less than 30 degrees ), five patients had severely stiff elbows (31 degrees -60 degrees ) and two patients had m...
We compared two mini skin incision techniques utilized in the treatment of carpal tunnel syndrome (CTS).
Twenty-seven patients who underwent surgery for CTS were evaluated in two groups according to the site of the mini incision performed for surgical release. A single mini skin incision was performed over the transverse carpal ligament in 12 patie...
Laceration of the deep intrinsic motor branch of the ulnar nerve below the Guyon canal is rarely seen in penetrating injuries of the hand. We report three patients (1 woman, 2 men) who underwent microsurgical repair for isolated injuries to the motor nerve branch of the ulnar nerve due to penetrating injuries to the hypothenar area of the hand. Two...
The aim of this study was to evaluate the accuracy of diagnostic tools in comparison with surgical results of occult ganglion cyst of the wrist, which is one of the causes of chronic wrist pain.
Twenty-five patients (4 males, 21 females; mean age 29 years; range 16 to 46 years) underwent surgery with an initial diagnosis of occult ganglion followin...
The purpose of this study was to evaluate the effect of dorsal cortical comminution on radiographic outcome of unstable distal radius fractures after treatment with closed reduction and K-wire fixation.
Forty-two patients were treated with closed reduction and K-wire fixation for unstable, extra-articular distal radius fractures with dorsal angulat...
We evaluated vascular problems in patients who were planned to receive posterior interosseous artery (PIA) flap for soft tissue defects in the dorsal hand, thumb, and the first web.
The study included 25 male patients (mean age 27 years; range 12 to 54 years) in whom reconstruction was planned with the use of the reverse PIA flap. The defects were...
Four patients who developed combined tendon and overlying skin defects following operative repair of ruptured Achilles tendon were presented. Three patients had an infected wound. The average interval from the first operation for repairing the ruptured Achilles tendon and the reconstructive procedure was 46.2 days (range, 5-65 days). All patients w...
Acute compartment syndrome usually occurs as a complication of major lower extremity trauma. Although chronic compartment syndrome is well described and reported in many literature, acute exertional compartment syndrome is rare. We reported an adult male patient who suffered from pain on his right leg and ankle after strenuous tracking activity. We...
In this cross-sectional study . in order to evaluate the suhjective and objective effects of High Tibial Osteotomy (HTO) and Total Knee Arthroplasty (TKA) operations on the same patiens, 11 cases undergone these operations on each knee in different time periods were retrospeetively reviewed. The mean age was63 for HTA and 68 for TKA at the time of...