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Papers by Caner Günerbüyük

Turkish Journal of Medical Sciences, Oct 25, 2023

Journal of Turkish Spinal Surgery

The International journal of spine surgery, Apr 1, 2024

Journal of Neurosciences in Rural Practice, Aug 1, 2023

Percutaneous vertebroplasty (PV) can be applied widely from osteoporotic to metastatic fractures.... more Percutaneous vertebroplasty (PV) can be applied widely from osteoporotic to metastatic fractures. Pain, radiculopathy, spinal cord compression, pulmonary embolism, and infection are common complications of this procedure. However, rare complications such as intradural cement leakage have also been reported. There is little or no data on the results obtained after the late intervention. In addition, the midline total laminectomy method, which is the classical method, was predominantly used in intradural cement leaks after PV. We would like to report a 69-year-old female patient who underwent vertebroplasty for her L1 osteoporotic fracture about 3 months ago in an external center and subsequently developed paresis. The patient’s surgery was successfully performed without the need for stabilization by hemilaminectomy. The improvement in the clinical findings of our case despite the late decompression shows that surgery is the most satisfactory option in such patients. As a surgical method, total excision can be achieved with the posterior hemilaminectomy approach.

Turkish Neurosurgery, 2023

Turkish journal of physical medicine and rehabilitation, Sep 1, 2022

Objectives: The aim of this study was to translate, cross-culturally adapt the patient-based Cons... more Objectives: The aim of this study was to translate, cross-culturally adapt the patient-based Constant-Murley Score (p-CMS), assess its validity, reliability, and compare it with the clinician-based CMS (c-CMS). Patients and methods: This cross-sectional study included a total of 51 shoulders of 46 patients (22 males, 24 females; mean age: 49±10 years; range, 29 to 70 years) with shoulder pain between December 2015 and July 2016. After translation of p-CMS, each participant was asked to complete the final Turkish version of the p-CMS. The c-CMS was assessed by a physiatrist who was blinded to the p-CMS. Retest of the p-CMS was performed in patients (n=15) who did not receive any treatment between two visits (Days 3 to 5). Results: A total of 51 shoulders (n=5 bilateral shoulder pain) were tested. Strength, subjective, objective, and total scores were significantly different between the p-CMS and c-CMS (p<0.001). Pain scores of the c-CMS and p-CMS revealed similar results with 95% limits of agreement of-3.81 and 4.81. Weighted kappa statistics demonstrated that the levels of agreement ranged between 0.343 and 0.698 in subjective and between 0.379 and 0.515 in objective components. For test-retest reliability of the p-CMS, intraclass correlation coefficient values ranged between 0.838 and 0.995. Conclusion: The Turkish version of the p-CMS has internal consistency and test-retest reliability to evaluate shoulder function in Turkish patients with shoulder pathologies. Considering the differences in test protocols and scoring methods of c-CMS and p-CMS, their interchangeable use is not supported.

Indian Journal of Orthopaedics

Journal of Turkish Spinal Surgery, 2020

Objective: The study aimed to investigate the incidence of painful proximal junctional kyphosis (... more Objective: The study aimed to investigate the incidence of painful proximal junctional kyphosis (PJK) after posterior fusion surgery in patients with adolescent idiopathic scoliosis (AIS) and their clinical results. Materials and Methods: A total of 220 patients diagnosed with AIS (180 females and 40 males) were reviewed retrospectively. PJK was defined as the development of kyphosis more than 10 degrees between the upper instrumented end vertebra and the proximal adjacent vertebra. Visual analogue score (VAS) and the Scoliosis Research Society (SRS)-24 questionnaire were used for clinical evaluations. Thoracic kyphosis (TK) and lumbar lordosis (LL) were measured on the sagittal spinal radiograph pre and postoperatively. Computed tomography (CT) and magnetic resonance imaging (MRI) were performed on patients with pain and worst disability scores. Results: The mean age was 15±2.4 years and the mean follow-up period was 24.27±11.69 months. PJK was detected in 20 of the 220 patients. TK changed from 35.5º±13.6º to 25º±7.3º postoperatively (p=0.001) while on observation, LL decreased from 53º±10º to 44.4º±7.8º postoperatively (p=0.001). The average score of the VAS average score was 3.2 (3-8), the mean SRS-24 pain was 2.5 and the self-image score was 4.1 in patients with PJK. In three of the 20 patients with PJK, the pain was severe (VAS=8), SRS-24 pain was on average 5 and the self-image score was three in patients who had disc penetration. CT and MRI evaluations in these three patients manifested severe disc degeneration and disc space collapse caused by pedicle screw penetration through the endplate and disc. Conclusion: Upper disc penetration with pedicle screw at the upper instrumented end vertebra leads to symptomatic disc degeneration and development of PJK. The proper placement and perfect trajectory of the most proximal pedicle screw is crucial and mandatory.

Ideggyógyászati szemle, 2018

Background and purpose Impaired shoulder function is the most disabling problem for daily life of... more Background and purpose Impaired shoulder function is the most disabling problem for daily life of Fascioscapulohumeral muscular dystrophy (FSHD) patients. Scapulothoracic arthrodesis can give a high impact to the functionality of patients. Here we report our experience with scapulothoracic arthrodesis and spinal stenosis surgery in FSHD patients. Methods 32 FSHD patients were collected between 2015-2016. Demographical and clinical features were documented. All the patients were neurologically examined. The Medical Research Council (MRC) and the FSHD evaluation scale was used to assess muscle involvement1. Scapulothoracic arthrodesis and spinal stenosis surgeries were performed in eligible patients. Results There were 16 male and 16 female (mean age 34.4 years; range 12-73) patients. 6 shoulders of 4 patients aged between 2132 years underwent scapulothoracic arthrodesis (two bilateral, one left and one right sided). Only one 63 years old female patient with severe hyperlordosis had spinal fusion surgery. All of the patients undergoing these corrective surgeries have better functionality in daily life, as well as superior shoulder elevation. Conclusion Until the emergence and clinical use of novel therapeutics, surgical interventions are indicated in carefully selected patients with FSHD to improve arm movements, the posture and the quality of life of patients in general. Scapulothorosic arthrodesis is a management with good clinical results and patient satisfaction. In selected cases other corrective orthopedic surgeries like spinal fusion may also be considered.

Medicine, 2020

Rationale: Facioscapulohumeral muscular dystrophy (FSHD) is the third most common muscular dystro... more Rationale: Facioscapulohumeral muscular dystrophy (FSHD) is the third most common muscular dystrophy, which is associated with facial, shoulder girdle, and paraspinal muscle atrophy. Most of the patients develop hypokyphosis and hyperlordosis in the course of the disease, to preserve standing posture. Corrective fusion is contraindicated in these patients as the surgery results with loss of compensatory hyperlordosis and leads to loss of trunk balance while standing. Although spinal fusion in neuromuscular scoliosis is a known treatment option, there are no studies in the literature on the spinal fusion of this specific patient group. Patient concerns: In this case report we have presented a 66-year-old woman, who was admitted with back and abdominal pain, inability to sit straight, abdominal discomfort, and numbness in the lower extremities after prolonged sitting. Diagnoses: The patient developed severe hyperlordosis causing intra-abdominal disorders, radicular symptoms, and sitting discomfort due to FSHD. Interventions: The patient underwent T2-S1 fusion and successful fusion was achieved. Outcomes: Individualized Neuromuscular Quality of Life Questionnaire (INQoL) was used to assess preoperative and 3 years postoperative functional outcomes. All domains and total score improved at the end of the follow-up period and successful fusion was verified radiologically. Lessons: This case suggests that spinal fusion may provide functional improvement in carefully selected patient groups. Patient stratification considering spinal disability is required for further studies in this specific indication. Abbreviations: AP = antero-posterior, BIPAP = bilevel positive airway pressure device, CT = computerized tomography, EMG = electromyography, FSHD = facioscapulohumeral muscular dystrophy, GI = gastrointestinal, InQoL = Individualized Neuromuscular Quality of Life Questionnaire, MRC = Medical Research Council, MRI = magnetic resonance imaging.

International Orthopaedics, 2018

Purpose Magnetic resonance (MRI) is a valuable imaging method which can detect pre-operative rota... more Purpose Magnetic resonance (MRI) is a valuable imaging method which can detect pre-operative rotator cuff tear characteristics accurately. However, tendon degeneration almost always necessitates a certain amount of debridement during arthroscopic repair, which alters tear size and shape. The aim of this study is to question the accuracy of the pre-operative tear size and classification in MRI and its relation to the tear size and type of the debrided tendon during arthroscopic repair. Methods A retrospective survey was performed to identify shoulders that underwent arthroscopic rotator cuff repair. Rotator cuff tears with an adequate history, a standard pre-operative MRI, and available surgical video records with appropriate measurements were included. Traumatic tears, calcifying tendonitis, isolated subscapularis tears, and revisions were excluded. In total, 60 shoulders' (30 males, 27 females; age 55.2 [35-73]) preoperative MRIs and intra-operative measurements were analyzed by orthopaedic surgeons and radiologists. Tear width and type were recorded. Interdisciplinary and intradisciplinary consistency of measurements and classifications were analyzed. Tear width measured on pre-operative MRI and after debridement were compared. Results Average measured tear width was 9 ± 5.3 mm on MRI. Surgeons (9.98 ± 4.6 mm) measured tears significantly wider than radiologists (7.71 ± 6.6 mm). Radiologists (ICC, 0.930; CI, 0.883-0.959) showed superior consistency on MRI than surgeons (CI, 0.502; CI, 0.105-0.726). Average tear width measured after debridement (29.3 ± 9.6 mm) was significantly higher than tear width measured on pre-operative MRI (p < 0.0001). None of the researchers assessing tear type on pre-operative MRI showed agreement with surgeons assessing intra-operative data. Conclusions There were significant differences between the pre-operative tear characteristics on MRI and the debrided tendon characteristics during surgery, which were extensive enough to classify the tear in a different category.

Turkish Journal of Physical Medicine and Rehabilitation, 2018

Does a core stabilization exercise program have a role in shoulder rehabilitation? A comparative ... more Does a core stabilization exercise program have a role in shoulder rehabilitation? A comparative study on young females.

European Spine Journal, 2016

Purpose To comparatively evaluate the biomechanical alterations those occur in the sagittal plane... more Purpose To comparatively evaluate the biomechanical alterations those occur in the sagittal plane of sacropelvic junction in angular kyphosis (AK) and Scheuermann kyphosis (SK) patients after surgery. Methods The spine radiographs of 52 patients operated for short-segment AK (n = 20) or SK (n = 32) were studied. Main outcome measures were sacral slope, pelvic incidence, pelvic tilt, lumbar lordosis, and thoracic kyphosis angles. Results In AK group, local and thoracic kyphosis angles, as well as lumbar lordosis angle, showed statistically significant reduction with surgery. Thoracic kyphosis and lumbar lordosis angles were reduced significantly in SK group. Postoperatively, there were significant differences between groups in lumbar lordosis, pelvic tilt angle, and sacral slope (p = 0.021, p = 0.001, and p = 0.027, respectively). Thoracic kyphosis angle and sacral slope were increased, and there was a remarkable correlation between thoracic kyphosis and lumbar lordosis values in the AK group. Conclusions The results of this study suggest that a significant sacropelvic improvement can be achieved by balanced sagittal vertical axis and T1 spinopelvic leading to a good sagittal alignment of spine in patients with AK and SK. Changes seen in morphological parameters after surgery may be closely related with baseline biomechanics and structure of the spine and pelvis. Therefore, further clinical and scientific trials are necessary both to elucidate the biomechanics, their clinical implications, and to develop new techniques and models for spine and pelvis surgery.

Respiration, 2006

Background: Most physiological measurements of the pulmonary diffusing capacity use carbon monoxi... more Background: Most physiological measurements of the pulmonary diffusing capacity use carbon monoxide (CO) as a tracer gas. Similar to CO, melatonin binds the hemoglobin in the blood. Objective: The present study was designed to assess the effect of exogenous melatonin administration on pulmonary functions including diffusing capacity for carbon monoxide (DLCO) in healthy subjects. Methods: The study was performed in a randomized, double-blind, placebo-controlled manner. DLCO was measured in 22 healthy male volunteers (age 18–25 years) who were randomized to melatonin (n = 11) and placebo administration (n = 11). At baseline, DLCO, alveolar volume (VA) and other spirometric parameters such as forced expiratory volume in 1 s (FEV1), forced vital capacity (FVC), peak expiratory flow (PEF) and maximal voluntary ventilation (MVV) were measured. DLCO was then corrected for the hemoglobin concentration. Measurements were repeated in a double-blind fashion 60 min after the administration of ...

Acta Orthopaedica et Traumatologica Turcica, 2013

Osteoblastoma is a benign local aggressive tumor mostly localized in the vertebra or long bones. ... more Osteoblastoma is a benign local aggressive tumor mostly localized in the vertebra or long bones. Carpal location and recurrence are extremely rare. Treatment options include either curettage or wide en bloc resection which causes functional disability in the hand and wrist and should be reserved only for recurrence. We present a case of recurrent trapezoid osteoblastoma previously treated with curettage of the trapezoid bone and a case of primary triquetral osteoblastoma.