Publications by authors named "Panayiotis Koulouvaris"

Background: The recurrence rate of lumbar spine microdiscectomies (rLSMs) is estimated to be 5-15%. Lumbar spine flexion (LSF) of more than 10° is mentioned as the most harmful load to the intervertebral disc that could lead to recurrence during the first six postoperative weeks. The purpose of this study is to quantify LSFs, following LSM, at the period of six weeks postoperatively.

View Article and Find Full Text PDF

Tumors in proximal radius are rare. Fibrous dysplasia (FD) describes a benign tumor of fibrous tissue that rarely occurs in proximal radius. We present the case of a 26-yr-old male with monostotic proximal radius FD.

View Article and Find Full Text PDF

The aim of the present study was to study the effects of cycling and pure concentric and pure eccentric high-intensity interval exercise (HIIE) on skeletal muscle (i.e., vastus lateralis) and cerebral oxygenation.

View Article and Find Full Text PDF

Electrical injury can affect any system and organ. Central nervous system (CNS) complications are especially well recognised, causing an increased risk of morbidity, while peripheral nervous system (PNS) complications, neurourological and cognitive and psychological abnormalities are less predictable after electrical injuries. PubMed was searched for English language clinical observational, retrospective, review and case studies published in the last 30 years using the key words: electrical injury, electrocution, complications, sequelae, neurological, cognitive, psychological, urological, neuropsychological, neurourological, neurogenic, and bladder.

View Article and Find Full Text PDF
Article Synopsis
  • Gait analysis is an important tool for diagnosing and treating musculoskeletal disorders, utilizing methods like surface electromyography (sEMG) to assess neuromuscular responses.
  • sEMG has a long history in evaluating muscle activity and is essential for developing effective rehabilitation protocols, but there are challenges like noise control and proper electrode placement that researchers need to address.
  • More research is needed to better understand the relationship between recorded muscle activity through sEMG and the actual force produced by those muscles during gait analysis.
View Article and Find Full Text PDF

Purpose: To compare short with long intramedullary hip nailing for elderly patients with unstable pertrochanteric fractures.

Methods: We prospectively studied 50 patients (33 women, 17 men; mean age, 80 years; range, 74-93 years) with unstable pertrochanteric fractures admitted and treated with a short (group A) or a long (group B) intramedullary hip nail from January 2013 to 2017. The patients were randomly allocated into each group according to their order of admission.

View Article and Find Full Text PDF

Venous thromboembolism (VTE) is a serious complication during and after hospitalization, yet is a preventable cause of in-hospital death.Without VTE prophylaxis, the overall VTE incidence in medical and general surgery hospitalized patients is in the range of 10% to 40%, while it ranges up to 40% to 60% in major orthopaedic surgery. With routine VTE prophylaxis, fatal pulmonary embolism is uncommon in orthopaedic patients and the rates of symptomatic VTE within three months are in the range of 1.

View Article and Find Full Text PDF

The most common surgery performed by orthopedic surgeons likely involves that for hip fractures. The incidence of hip fractures is anticipated to rise in the coming decades. Hip fractures most commonly occur in elderly women with osteoporosis after a fall from standing position.

View Article and Find Full Text PDF

Introduction: There are limited information and inconclusive results for dual head screw intramedullary hip nails for trochanteric fractures. Therefore, we performed a prospective study to evaluate the healing of fractures, and survival, function, and complications of patients operated with this implant.

Methods: We prospectively studied 79 patients (61 women and 18 men; mean age: 84.

View Article and Find Full Text PDF

Arthroscopic and prosthetic hip and knee joint infection are uncommon; however, devastating complications in adult reconstruction surgery. An acute onset of pain combined with effusion, erythema, warmth and fever are the typical signs of early infection. Hypersensitivity or allergic reactions to arthroplasty components, concerning mainly metal-to-metal bearings and metal-on-plastic total knee arthroplasties have also been reported.

View Article and Find Full Text PDF

Vascular injury in orthopedic trauma is challenging. The risk to life and limb can be high, and clinical signs initially can be subtle. Recognition and management should be a critical skill for every orthopedic surgeon.

View Article and Find Full Text PDF

Pertrochanteric fractures in elderly patients represent a major health issue. The available surgical options are fixation with extramedullary devices, intramedullary nailing, and arthroplasty. Intramedullary nailing for hip fractures has become more popular in recent years.

View Article and Find Full Text PDF

Objective: The purpose of this study was to present the functional outcomes of percutaneous tenorrhaphy of the Achilles tendon with a minimum follow-up of 10 years.

Methods: The medical records of patients who underwent percutaneous surgery for acute unilateral Achilles tendon rupture between 2000 and 2004 were retrospectively reviewed.

Results: A total of 11 male patients met the inclusion criteria and were followed for a mean of 12.

View Article and Find Full Text PDF

Objective: The aim of this study was to determine whether the medial or the lateral mid-patellar approach is the most reliable for intra-articular knee injections.

Methods: The study included 76 knees of 76 patients divided into 2 groups. The first group consisted of 38 patients with a knee injury and resultant knee effusion.

View Article and Find Full Text PDF

The purpose of this study was to review current principles of therapy for affected patients and determine whether an emergent surgical approach or expectant management should be selected in cases of snakebites of fingers or toes by Viperidae family members. Over the past five years (January 2004 to December 2009), 12 patients bitten by Vipera ammodytes were admitted in our department. We retrospectively reviewed their demographic and epidemiological characteristics as well as their symptoms, laboratory findings, and complications.

View Article and Find Full Text PDF

Nonunion of the humeral shaft in patients with antiepileptic drug associated metabolic bone disorder constitute a challenging surgical problem difficult to treat due to seizure activity, osteoporosis, and poor stabilization options. We report a case of nonunion of the humeral shaft in an antiepileptic drug patient with uncontrolled generalized tonic-clonic seizure activity successfully treated with Ilizarov external fixator and a follow-up of 4 years.

View Article and Find Full Text PDF