özgür kaya - Academia.edu (original) (raw)

Papers by özgür kaya

Mustafa Kemal Üniversitesi Tıp Dergisi

Orthopaedic Journal of Sports Medicine, 2021

Objectives: Medial open wedge high tibial osteotomy is a widely used treatment method for early s... more Objectives: Medial open wedge high tibial osteotomy is a widely used treatment method for early stages of medial compartment osteoarthritis, particularly in the middle aged patients. Correction of the malalignment of the knee and even distribution of the body weight through knee joint is considered to facilitate the regeneration of the damaged cartilage. Addition of a regenerative procedure to tibial osteotomies may enhance its potential effects. In this study we analyzed the effect of, if any, simultaneous use of BMAC with high tibial osteotomy. Methods: We have evaluated the clinical results of 46 knees of 38 patients that underwent open wedge high tibial osteotomy for early stage medial compartment arthrosis between 2017-2020. Patients were recruited into two groups as HTO only group (Group 1) and HTO+BMAC group (Group 2). Mean follow up time was 12.6 months. Preoperative International Knee Documentation Committee (IKDC) subjective score and Knee Society Score (KSS) of the patien...

British Journal of Occupational Therapy, 2022

Introduction Total knee arthroplasty (TKA) negatively affects the quality of life, perceived occu... more Introduction Total knee arthroplasty (TKA) negatively affects the quality of life, perceived occupational performance, and satisfaction. Face-to-face rehabilitation services have been adversely affected by problems such as time, cost, accessibility, and the COVID-19 pandemic. The telerehabilitation (TR) method is recommended for these problems. This pilot study was planned to examine the comparison of client-centered (CC) intervention with TR and face-to-face (FF) method on quality of life, perceived occupational performance, and satisfaction after TKA. Methods Forty-eight older adults that after TKA (13 men and 35 women) were randomized to the TR group ( n = 24; 68.25 ± 3.32 years) or FF group ( n = 24; 68.91 ± 2.56 years). The Nottingham Health Profile (NHP) was used to assess the quality of life, and the Canadian Occupational Performance Measure (COPM) was used to assess perceived occupational performance and satisfaction. Results There was no difference in all parameters between...

OTJR: Occupation, Participation and Health, 2021

There is known to be a decrease in quality of life and perceived occupational performance and sat... more There is known to be a decrease in quality of life and perceived occupational performance and satisfaction following total knee arthroplasty (TKA). This study was planned to examine the effectiveness of a client-centered (CC) intervention with the telerehabilitation (TR) method on the quality of life, perceived occupational performance, and satisfaction after TKA. A total of 38 patients who had undergone TKA were randomly assigned to the CC and control groups. A 12-day intervention program was applied to the CC group. The Nottingham Health Profile (NHP) and Canadian Occupational Performance Measure (COPM) were applied before and after intervention. The 12-day intervention showed a strong effect on all parameters in the CC group ( p

Amac: Rutin gebe muayenesinde kullanilan USG nin pelvik halka agrisi tanisinda fayda saglayabilec... more Amac: Rutin gebe muayenesinde kullanilan USG nin pelvik halka agrisi tanisinda fayda saglayabilecegini gostermektir. Materyal -Metod: Calismamizda rutin gebelik kontrolu yapilan 287 hastanin normal muayenelerine ek olarak usg ile interpubik mesafe genisligi olculdu. Pelvik halka agrisi tanisi netlestiirlmesi acisindan Ortopedi ve Trav. Uzmani tarafindan gerekli klinik testleri yapildi. Sonuclar not edildi ve degerlendirmelerde IBM SPSS Statistics 20 programi kullanildi ve istatistiksel anlamlilik siniri olarak p<0,05 kabul edildi. Bulgular: Pelvik halka agrisi bulunan hastalarda interpubik mesafe genisliginin arttigi , pelvik halka agrisi olmayan hastalarda interpubik mesafenin 10mm uzerine cikmadigi gozlendi. Sonuc: Calismamizda pelvik halka agrisi ile interpubik mesafe genislemsi arasinda anlamli iliski saptanmis olup; pelvik halka agrisi tanisinda usg ile interpubik mesafe olcumu yararli oldugu kanaatindeyiz.

Joint Diseases and Related Surgery, 2021

Objectives This study aims to evaluate the mid-term clinical, functional, radiological, and socio... more Objectives This study aims to evaluate the mid-term clinical, functional, radiological, and socioeconomic outcomes of calcaneus fractures treated with open reduction-internal fixation (ORIF) versus minimally invasive percutaneous fixation (MIPF). Patients and methods A total of 48 patients (34 males, 14 females; mean age: 44.05 years; range, 19 to 64 years) who underwent either ORIF or MIPF for calcaneus fractures between January 2010 and January 2016 were retrospectively analyzed. The patients were divided into two groups as the ORIF group (n=36) and MIPF group (n=12). The American Orthopaedic Foot & Ankle Society (AOFAS) score, Maryland Foot Score (MFS), and the Short Form-36 (SF-36) scores were assessed for the clinical assessment. The mean duration of operation, mean length of hospitalization, pedobarographic gait analysis, the incidence of contralateral knee pain, increased shoe size, and change of profession due to significant heel pain were also evaluated. The Böhler’s angle,...

Clinical Anatomy of the Knee, 2021

Arthroscopy or open surgery are among the commonly practiced surgical procedures in the treatment... more Arthroscopy or open surgery are among the commonly practiced surgical procedures in the treatment of meniscus and cartilage lesions, PCL rupture, and ACL rupture, which may cause symptomatic instability or symptoms such as knee locking and catching. Therefore, various surgical techniques have been developed for each procedure, and accordingly, several intraoperative patient positions have been used. There are two major intraoperative patient positions, i.e., supine position with a leg holder on the operating table [1, 2]. Although it is known that the patient position can affect the success of surgery, there are very few publications on the relationship between intraoperative patient position and surgical success in the literature [3]. Throughout the last century, technological advancements in the optical systems for imaging have facilitated the developments in arthroscopic surgery. Today, a majority of articular pathologies in the knee joint can be successfully treated with arthroscopic techniques.

Clinical Anatomy of the Knee, 2021

Normal arthroscopic anatomy should be well known for an adequate and effective surgical intervent... more Normal arthroscopic anatomy should be well known for an adequate and effective surgical intervention for successful results in surgery. Successful differentiation of normal tissue and pathological tissue is the first step of arthroscopic surgery. In this context, the arthroscopic anatomy of the knee joint is essential for knee arthroscopy which is the most commonly performed orthopaedic procedure [1, 2].

Knee Surgery, Sports Traumatology, Arthroscopy, 2020

Purpose This study aimed to determine the magnitude of local curvature matching in the sagittal p... more Purpose This study aimed to determine the magnitude of local curvature matching in the sagittal plane between an implanted graft and the condylar region receiving the graft and to analyze its effect on clinical outcomes in patients undergoing osteochondral allograft transplantation (OCA). Methods Patients who underwent knee OCA between 2016 and 2019 without circumferential step-off and were matched with a donor in accordance with the conventional matching process were included. The magnitude of donor-host local curvature matching was measured using postoperative sagittal magnetic resonance imaging data with Syngo (Siemens Medical Solutions, Forchheim, Germany) and GeoGebra (GeoGebra GmbH, Linz, AU) software. In addition to radiological evaluation, ROC analysis was performed to compare the patient-reported outcome measures (PROMs) obtained during the 2-year follow-up period among the patients in the SagA group, who had a graft match in the sagittal plane; SagB group, who had low convexity of the graft in the sagittal plane; and SagC group, who had high convexity of the graft in the sagittal plane in accordance with the determined indices. Results The study included 27 patients who fulfilled the inclusion criteria, and the mean clinical scores of the SagC group were not statistically significantly higher than those of the other groups at any timepoint during the follow-up. The mean Tegner, IKDC, total KOOS and SF-12 physical and mental health scores of the SagC group were lower than those of the other two groups at various follow-up time points, particularly at month 24 (p < 0.05). There were no significant differences between the SagA and SagB groups in the PROMs at any of the follow-up time points (n.s.). The significant differences observed between the SagC group and the other groups in the mean KOOS scores for function in daily living and function in sport and recreation were also observed between the SagA and SagB groups at the follow-ups (p < 0.05). Conclusion During OCA, a local curvature mismatch between the donor and the host involving large graft convexity may have a negative impact on midterm clinical outcomes. A preoperative analysis of the convexity relationship between the defect site and the graft region in the hemicondylar allograft to be used may enhance donor-host matching. The local analysis method described in the current study may also facilitate graft supply by ensuring donor-host matching without condyle-side and size matching. Level of evidence III.

Journal of Surgery and Medicine, 2019

Aim: Many studies have examined the effects of different calciotropic hormones on fracture healin... more Aim: Many studies have examined the effects of different calciotropic hormones on fracture healing, whereas few studies focus on growth factors. Local detection of somatomedin C (IGF-1) in fracture callus, application of growth hormone (GH) and IGF-1 as nonunion treatment, and low GH and IGF-1 levels in osteoporotic fractures indicate that these hormones are effective in fracture healing. However, most of these studies are based on post fracture GH and IGF-1 levels. GH and IGF-1 are also involved in acute phase response and can change due to trauma. The aim of this study is to investigate the change in GH and IGF-1 levels in patients treated with osteotomy, in which an iatrogenic fracture is created, and to evaluate the effect of these hormones on fracture healing by comparing the results before and after the fractures. Methods: Patients who were diagnosed with developmental dysplasia of the hip and underwent surgery between 2014-2015 were prospectively followed for this cohort study. Forty-one patients were included, and two groups were formed. Patients who underwent open reduction and soft tissue release without osteotomy (n=20) were included in the first group. Patients who underwent pelvic osteotomy (n=21), in which iatrogenic fractures were created, were included in the second group. Blood samples were obtained from all patients pre-operatively and on the 1 st and 28 th postoperative days. Friedman and Mann-Whitney U tests were used for statistical analysis. Results: Mean age of the first group, comprising 19 females (95%) and 1 male (5%), was 11.25 months (Range: 6-25 months). Mean age of the second group, including 17 females (85.7%) and 4 males (14.3%), was 74.4 months (Range: 24-120 months). While there was no significant difference between pre-and postoperative GH values in the first group (P=0.05), postoperative GH levels were significantly higher than preoperative GH levels in the second group (P<0.001). Postoperative IGF-1 levels were significantly lower than preoperative IGF-1 levels in both groups (P<0.001). When the difference of preoperative and postoperative 1 st day GH and IGF-1 values were compared between two groups, GH changes were found significantly higher in the second group (P<0.001) whereas serum IGF-1 changes were significantly lower in the second group (P=0.043). Conclusion: IGF-1 is inadequate in the investigation of fracture healing due to its short half-life and local production. On the other hand, GH plays an active role in fracture healing and increases significantly in comparison to pre-fracture values. Considering the GH increase during fracture healing, it may be beneficial to support patients with pathological fracture healing with growth hormone.

The Journal of Knee Surgery, 2020

This study aimed to investigate whether overhang or underhang around the tibial component that oc... more This study aimed to investigate whether overhang or underhang around the tibial component that occurs during the placement of tibial baseplates was affected by different slope angles of the tibial plateau and determine the changes in the lateral and medial plateau diameters while changing the slope angle in total knee arthroplasty. Three-dimensional tibia models were reconstructed using the computed tomography scans of 120 tibial dry bones. Tibial plateau slope cuts were performed with 9, 7, 5, 3, and 0 degrees of slope angles 2-mm below the subchondral bone in the deepest point of the medial plateau. Total, lateral, and medial tibial plateau areas and overhang/underhang rates were measured at each cut level. Digital implantations of the asymmetric and symmetric tibial baseplates were made on the tibial plateau with each slope angles. Following the implantations, the slope angle that prevents overhang or underhang at the bone border and the slope angle that has more surface area was...

Mustafa Kemal Üniversitesi Tıp Dergisi

Orthopaedic Journal of Sports Medicine, 2021

Objectives: Medial open wedge high tibial osteotomy is a widely used treatment method for early s... more Objectives: Medial open wedge high tibial osteotomy is a widely used treatment method for early stages of medial compartment osteoarthritis, particularly in the middle aged patients. Correction of the malalignment of the knee and even distribution of the body weight through knee joint is considered to facilitate the regeneration of the damaged cartilage. Addition of a regenerative procedure to tibial osteotomies may enhance its potential effects. In this study we analyzed the effect of, if any, simultaneous use of BMAC with high tibial osteotomy. Methods: We have evaluated the clinical results of 46 knees of 38 patients that underwent open wedge high tibial osteotomy for early stage medial compartment arthrosis between 2017-2020. Patients were recruited into two groups as HTO only group (Group 1) and HTO+BMAC group (Group 2). Mean follow up time was 12.6 months. Preoperative International Knee Documentation Committee (IKDC) subjective score and Knee Society Score (KSS) of the patien...

British Journal of Occupational Therapy, 2022

Introduction Total knee arthroplasty (TKA) negatively affects the quality of life, perceived occu... more Introduction Total knee arthroplasty (TKA) negatively affects the quality of life, perceived occupational performance, and satisfaction. Face-to-face rehabilitation services have been adversely affected by problems such as time, cost, accessibility, and the COVID-19 pandemic. The telerehabilitation (TR) method is recommended for these problems. This pilot study was planned to examine the comparison of client-centered (CC) intervention with TR and face-to-face (FF) method on quality of life, perceived occupational performance, and satisfaction after TKA. Methods Forty-eight older adults that after TKA (13 men and 35 women) were randomized to the TR group ( n = 24; 68.25 ± 3.32 years) or FF group ( n = 24; 68.91 ± 2.56 years). The Nottingham Health Profile (NHP) was used to assess the quality of life, and the Canadian Occupational Performance Measure (COPM) was used to assess perceived occupational performance and satisfaction. Results There was no difference in all parameters between...

OTJR: Occupation, Participation and Health, 2021

There is known to be a decrease in quality of life and perceived occupational performance and sat... more There is known to be a decrease in quality of life and perceived occupational performance and satisfaction following total knee arthroplasty (TKA). This study was planned to examine the effectiveness of a client-centered (CC) intervention with the telerehabilitation (TR) method on the quality of life, perceived occupational performance, and satisfaction after TKA. A total of 38 patients who had undergone TKA were randomly assigned to the CC and control groups. A 12-day intervention program was applied to the CC group. The Nottingham Health Profile (NHP) and Canadian Occupational Performance Measure (COPM) were applied before and after intervention. The 12-day intervention showed a strong effect on all parameters in the CC group ( p

Amac: Rutin gebe muayenesinde kullanilan USG nin pelvik halka agrisi tanisinda fayda saglayabilec... more Amac: Rutin gebe muayenesinde kullanilan USG nin pelvik halka agrisi tanisinda fayda saglayabilecegini gostermektir. Materyal -Metod: Calismamizda rutin gebelik kontrolu yapilan 287 hastanin normal muayenelerine ek olarak usg ile interpubik mesafe genisligi olculdu. Pelvik halka agrisi tanisi netlestiirlmesi acisindan Ortopedi ve Trav. Uzmani tarafindan gerekli klinik testleri yapildi. Sonuclar not edildi ve degerlendirmelerde IBM SPSS Statistics 20 programi kullanildi ve istatistiksel anlamlilik siniri olarak p<0,05 kabul edildi. Bulgular: Pelvik halka agrisi bulunan hastalarda interpubik mesafe genisliginin arttigi , pelvik halka agrisi olmayan hastalarda interpubik mesafenin 10mm uzerine cikmadigi gozlendi. Sonuc: Calismamizda pelvik halka agrisi ile interpubik mesafe genislemsi arasinda anlamli iliski saptanmis olup; pelvik halka agrisi tanisinda usg ile interpubik mesafe olcumu yararli oldugu kanaatindeyiz.

Joint Diseases and Related Surgery, 2021

Objectives This study aims to evaluate the mid-term clinical, functional, radiological, and socio... more Objectives This study aims to evaluate the mid-term clinical, functional, radiological, and socioeconomic outcomes of calcaneus fractures treated with open reduction-internal fixation (ORIF) versus minimally invasive percutaneous fixation (MIPF). Patients and methods A total of 48 patients (34 males, 14 females; mean age: 44.05 years; range, 19 to 64 years) who underwent either ORIF or MIPF for calcaneus fractures between January 2010 and January 2016 were retrospectively analyzed. The patients were divided into two groups as the ORIF group (n=36) and MIPF group (n=12). The American Orthopaedic Foot & Ankle Society (AOFAS) score, Maryland Foot Score (MFS), and the Short Form-36 (SF-36) scores were assessed for the clinical assessment. The mean duration of operation, mean length of hospitalization, pedobarographic gait analysis, the incidence of contralateral knee pain, increased shoe size, and change of profession due to significant heel pain were also evaluated. The Böhler’s angle,...

Clinical Anatomy of the Knee, 2021

Arthroscopy or open surgery are among the commonly practiced surgical procedures in the treatment... more Arthroscopy or open surgery are among the commonly practiced surgical procedures in the treatment of meniscus and cartilage lesions, PCL rupture, and ACL rupture, which may cause symptomatic instability or symptoms such as knee locking and catching. Therefore, various surgical techniques have been developed for each procedure, and accordingly, several intraoperative patient positions have been used. There are two major intraoperative patient positions, i.e., supine position with a leg holder on the operating table [1, 2]. Although it is known that the patient position can affect the success of surgery, there are very few publications on the relationship between intraoperative patient position and surgical success in the literature [3]. Throughout the last century, technological advancements in the optical systems for imaging have facilitated the developments in arthroscopic surgery. Today, a majority of articular pathologies in the knee joint can be successfully treated with arthroscopic techniques.

Clinical Anatomy of the Knee, 2021

Normal arthroscopic anatomy should be well known for an adequate and effective surgical intervent... more Normal arthroscopic anatomy should be well known for an adequate and effective surgical intervention for successful results in surgery. Successful differentiation of normal tissue and pathological tissue is the first step of arthroscopic surgery. In this context, the arthroscopic anatomy of the knee joint is essential for knee arthroscopy which is the most commonly performed orthopaedic procedure [1, 2].

Knee Surgery, Sports Traumatology, Arthroscopy, 2020

Purpose This study aimed to determine the magnitude of local curvature matching in the sagittal p... more Purpose This study aimed to determine the magnitude of local curvature matching in the sagittal plane between an implanted graft and the condylar region receiving the graft and to analyze its effect on clinical outcomes in patients undergoing osteochondral allograft transplantation (OCA). Methods Patients who underwent knee OCA between 2016 and 2019 without circumferential step-off and were matched with a donor in accordance with the conventional matching process were included. The magnitude of donor-host local curvature matching was measured using postoperative sagittal magnetic resonance imaging data with Syngo (Siemens Medical Solutions, Forchheim, Germany) and GeoGebra (GeoGebra GmbH, Linz, AU) software. In addition to radiological evaluation, ROC analysis was performed to compare the patient-reported outcome measures (PROMs) obtained during the 2-year follow-up period among the patients in the SagA group, who had a graft match in the sagittal plane; SagB group, who had low convexity of the graft in the sagittal plane; and SagC group, who had high convexity of the graft in the sagittal plane in accordance with the determined indices. Results The study included 27 patients who fulfilled the inclusion criteria, and the mean clinical scores of the SagC group were not statistically significantly higher than those of the other groups at any timepoint during the follow-up. The mean Tegner, IKDC, total KOOS and SF-12 physical and mental health scores of the SagC group were lower than those of the other two groups at various follow-up time points, particularly at month 24 (p < 0.05). There were no significant differences between the SagA and SagB groups in the PROMs at any of the follow-up time points (n.s.). The significant differences observed between the SagC group and the other groups in the mean KOOS scores for function in daily living and function in sport and recreation were also observed between the SagA and SagB groups at the follow-ups (p < 0.05). Conclusion During OCA, a local curvature mismatch between the donor and the host involving large graft convexity may have a negative impact on midterm clinical outcomes. A preoperative analysis of the convexity relationship between the defect site and the graft region in the hemicondylar allograft to be used may enhance donor-host matching. The local analysis method described in the current study may also facilitate graft supply by ensuring donor-host matching without condyle-side and size matching. Level of evidence III.

Journal of Surgery and Medicine, 2019

Aim: Many studies have examined the effects of different calciotropic hormones on fracture healin... more Aim: Many studies have examined the effects of different calciotropic hormones on fracture healing, whereas few studies focus on growth factors. Local detection of somatomedin C (IGF-1) in fracture callus, application of growth hormone (GH) and IGF-1 as nonunion treatment, and low GH and IGF-1 levels in osteoporotic fractures indicate that these hormones are effective in fracture healing. However, most of these studies are based on post fracture GH and IGF-1 levels. GH and IGF-1 are also involved in acute phase response and can change due to trauma. The aim of this study is to investigate the change in GH and IGF-1 levels in patients treated with osteotomy, in which an iatrogenic fracture is created, and to evaluate the effect of these hormones on fracture healing by comparing the results before and after the fractures. Methods: Patients who were diagnosed with developmental dysplasia of the hip and underwent surgery between 2014-2015 were prospectively followed for this cohort study. Forty-one patients were included, and two groups were formed. Patients who underwent open reduction and soft tissue release without osteotomy (n=20) were included in the first group. Patients who underwent pelvic osteotomy (n=21), in which iatrogenic fractures were created, were included in the second group. Blood samples were obtained from all patients pre-operatively and on the 1 st and 28 th postoperative days. Friedman and Mann-Whitney U tests were used for statistical analysis. Results: Mean age of the first group, comprising 19 females (95%) and 1 male (5%), was 11.25 months (Range: 6-25 months). Mean age of the second group, including 17 females (85.7%) and 4 males (14.3%), was 74.4 months (Range: 24-120 months). While there was no significant difference between pre-and postoperative GH values in the first group (P=0.05), postoperative GH levels were significantly higher than preoperative GH levels in the second group (P<0.001). Postoperative IGF-1 levels were significantly lower than preoperative IGF-1 levels in both groups (P<0.001). When the difference of preoperative and postoperative 1 st day GH and IGF-1 values were compared between two groups, GH changes were found significantly higher in the second group (P<0.001) whereas serum IGF-1 changes were significantly lower in the second group (P=0.043). Conclusion: IGF-1 is inadequate in the investigation of fracture healing due to its short half-life and local production. On the other hand, GH plays an active role in fracture healing and increases significantly in comparison to pre-fracture values. Considering the GH increase during fracture healing, it may be beneficial to support patients with pathological fracture healing with growth hormone.

The Journal of Knee Surgery, 2020

This study aimed to investigate whether overhang or underhang around the tibial component that oc... more This study aimed to investigate whether overhang or underhang around the tibial component that occurs during the placement of tibial baseplates was affected by different slope angles of the tibial plateau and determine the changes in the lateral and medial plateau diameters while changing the slope angle in total knee arthroplasty. Three-dimensional tibia models were reconstructed using the computed tomography scans of 120 tibial dry bones. Tibial plateau slope cuts were performed with 9, 7, 5, 3, and 0 degrees of slope angles 2-mm below the subchondral bone in the deepest point of the medial plateau. Total, lateral, and medial tibial plateau areas and overhang/underhang rates were measured at each cut level. Digital implantations of the asymmetric and symmetric tibial baseplates were made on the tibial plateau with each slope angles. Following the implantations, the slope angle that prevents overhang or underhang at the bone border and the slope angle that has more surface area was...