Publications by authors named "Andrzej Grzegorzewski"

Background: Radial neck fractures account for 5-17% of elbow fractures and about 1% of all fractures in children. The subject of the presented research is assesment of clinical and radiological outcomes of the Metaizeau technique for treatment of isolated radial neck fractures in children.

Material And Methods: Retrospective analysis of clinical and radiological data of patients treated with the Metaizeau technique in our Department between 2015 and 2020.

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Background: Legg-Calvé-Perthes (LCPD) disease is a complex condition affecting the femoral head's epiphysis in children. It occurs with a prevalence ranging from 0.4 to 29.

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Congenital vertical talus is a rare foot deformity. The hindfoot is valgus and equinus, the midfoot is dorsiflexed and forefoot is abducted due to a fixed dorsal dislocation of the navicular on the head of the talus and the cuboid on the anterior part of the calcaneus. The epidemiology and etiology of vertical talus is unknown.

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Objective: The aim of this study was to evaluate if a similar catabolic and inflammatory gene pattern exists between the synovium, hyaline cartilage, and blood of patients with the knee joint tissues and if one precedes the other.

Design: A total of fifty-eight patients (34 females and 24 males) with a mean age of 44.7 years (range, 18-75) underwent elective knee arthroscopy due to previously diagnosed pathology.

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The work aims to revise the current views on the effectiveness of Dega's pelvic osteotomy in preventing femoral head deformity in the course of Perthes' disease in patients with late symptoms >8 years of age and withsignificant changes in the radiographic image (Catterall III/IV or Herring B, B/C, C). We did a literature review. Four articles from six found in 'PubMed' which combine Dega acetabuloplasty and Perthes' disease words were fully read and analyzed.

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Wiktor Dega has significantly impacted contemporary pediatric orthopedics by developing transiliac osteotomy - Dega's pelvic osteotomy. The global implementation of the surgery technique gained dynamism in the 2000s after being published by Ward and Grudziak. Since then, derivative operative techniques called Dega, Dega-like or Dega family osteotomies have been developed.

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Background: The term Monteggia fracture refers to a class of injuries encompassing the fracture of the proximal end of the ulna with subluxation or dislocation of the radial head. These injuries account for 0.4-1% of all forearm fractures in children.

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<br><b>Introduction:</b> Multidirectional shoulder instability (MDI) occurs when the shoulder is dislocating in at least two directions. The patient usually experiences pain with apprehension and a clicking sensation inside the joint. So far, a few classification scales of shoulder instability have been made.

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Background: The aim of this study is to analyse the outcomes of total cementless hip joint arthroplasty in the treatment of advanced hip osteoarthritis following Perthes' disease in childhood.

Material And Methods: The study enrolled 56 patients (15 women and 41 men) who underwent a total of 61 hip joint arthroplasties for coxarthrosis following Perthes' disease. The mean age of the patients at surgery was 46.

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Aim: To see if three-dimensional (3D) methods could bring new understanding to acetabular changes in shape and orientation in the spastic hip and in which direction(s) acetabular orientation might change, which is crucial for planning appropriate hip correction surgery.

Method: We performed a retrospective study of pelvic computed tomography (CT) examinations in 20 consecutive patients (10 females, 10 males). The mean age of patients was 12 years 9 months (SD 2y; range: 9-16y) at the time of the CT examination.

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Background: The significantly accelerated development of human society in the last millennium has brought about changes in human behavior and body mass that may have influenced human bone morphology. Our objective was to analyze the variation in pelvic shape and size in males from modern and medieval populations.

Methods: We obtained 22 pelvic girdles of adult males from a medieval cemetery located in Cedynia, Poland.

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Background: Both ultrasound and radial shockwave therapies are used to treat tennis elbow syndrome. The aim of this study was to compare the therapeutic efficacy of both therapies by assessing the reduction in pain intensity and frequency, restoration of mobility, and reduction in the need for pain medication.

Material And Methods: The study enrolled 60 people, who were randomly divided into two groups of 30 patients: those treated by radial shockwave therapy and those treated by ultrasound therapy.

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Background: Autologous Conditioned Plasma (ACP) has a wide range of potential uses in modern orthopaedics. The aim of this study was to examine the characteristics of proprietary ACP and compare them with those of ACP produced using a commercially available kit.

Material And Methods: In the hospital laboratory, 20 samples of ACP taken from patients and prepared according to the commercially available kit protocol with a double syringe system were compared with 40 ACP preparations made using disposable sterile equipment available in the hospital.

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Occupational ulnar neuropathy at the elbow joint develops in the course of long term direct pressure on the nerve and a persistently flexed elbow posture, but first of all, it is strongly associated with "holding a tool in a certain position" repetitively. Therefore, computer work only in exceptional cases can be considered as a risk factor for the neuropathy. Ulnar hypermobility at the elbow might be one of the risk factors in the development of occupational ulnar neuropathy; however, this issue still remains disputable.

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Background: Although acetabulum orientation is well established anatomically and radiographically, its relation to the innominate bone has rarely been addressed. If explored, it could open the discussion on patomechanisms of such complex disorders as femoroacetabular impingement (FAI). We therefore evaluated the influence of pelvic bone position and structure on acetabular spatial orientation.

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Objective: To evaluate the distribution of SP (substance P) and S-100 peptide immunoreactivity, as well as the vascular supply of tissues commonly used as grafts for anterior cruciate ligament (ACL) reconstruction. A second aim was to compare the above mentioned distribution in the semitendinosus muscle tendons of cerebral palsy (CP) patients with the semitendinosus muscle tendons and patellar tendons of patients without CP.

Methods: The first group consisted of 14 children with cerebral palsy with a mean age of 11.

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Purpose: To evaluate the efficacy, results, and complications of transphyseal technique of anterior cruciate ligament (ACL) reconstruction in prepubertal patients and to assess a possible influence of children's growth on the outcome.

Methods: Between 2005 and 2009, 22 (16 boys and 6 girls) prepubescent patients, Tanner stage 1 and 2, underwent ACL reconstruction and the follow-up 6, 12, and 24 months after surgery and after growth plate closure. The average age of the girls was 11.

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This study presents how motion pictures illustrate a person with cerebral palsy (CP), the social impact from the media, and the possibility of cerebral palsy education by using motion pictures. 937 motion pictures were reviewed in this study. With the criteria of nondocumentary movies, possibility of disability classification, and availability, the total number of motion pictures about CP was reduced to 34.

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Purpose: Chronic tendinopathy of lateral epicondyle of the humerus, commonly known as "tennis elbow" is one of the most frequent tendinopathies caused by recurrent overload of the muscle origins. The aim of the study was to assess the effectiveness of treating lateral epicondylitis (LE) with autologous conditioned plasma (ACP) and betamethasone injections, and to compare these methods over the course of a one year follow-up.

Methods: Patients were randomly placed into one of into two groups: 53 were treated with ACP, and 46 with 1 ml betamethasone injections and 2 ml of 1 % lignocaine.

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Background: Hip arthroplasty is one of the most frequently performed orthopedic procedures with high scores of success while its most common complication is aseptic loosening of the acetabular component, which may result from host bone loss or even from pelvis discontinuity. The purpose of the study was to evaluate results in patients after revision acetabular arthroplasty with reconstruction rings and allografts.

Materials And Methods: Retrospective data was collected from 69 revisions of acetabular components, performed in a group of 69 treated patients (the mean age 65.

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Background: Two-dimensional (2D) measurements of acetabular morphology and orientation are well known; there is less information on these acetabular characteristics in three dimensions. One important reason is the lack of standardized reference planes for the pelvis, especially in relation to the spinopelvic unit; another is that no method precisely assesses the acetabulum in three-dimensional (3D) orientation based on its axis rather than on the directions of the edges of the acetabular rim. We present an objective, highly reliable and accurate, axis-based approach to acetabular anthropometry in the measurement of acetabular volume and spatial orientation in both normal and pathologic hips.

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Introduction: Cartilage lesion with patellar malalignment may be correlated with pain. Situations in which patients with recurrent patellar dislocation are painless between episodes of luxation can be approached with considerable curiosity. We evaluated the distribution of substance-P and S-100 protein expression in soft tissue of the knee in children with recurrent patellar dislocation, in order to evaluate the distribution of nociceptors and determine tissue origins of this situation.

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The most important risk factor of suprascapular nerve entrapment is probably the shape of the suprascapular notch (SSN). The aim of the study was to perform a radiological study of the symmetry of SSN. Included in the study were 311 patients (137 women and 174 men) who underwent standard computed tomography investigation of the chest.

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