Ioannis Vossinakis

• MD
• Head of Department at ANASSA GENERAL PRIVATE HOSPITAL, VOLOS GREECE

Dislocation and instability of primary total hip arthroplasty (THA) is the leading cause for revision surgery, linked with significant financial burden and patient dissatisfaction. It is a multifactorial complication and requires accurate diagnosis and identification of the causative factors, as well as good preoperative planning for revision surge...

Intraarticular distal radius fractures in adolescents are rare with only three Salter-Harris III fractures previously reported. Bilateral wrist fractures are also not very common and present a dilemma between conservative and surgical treatment. We present the case of a 16 year old boy with a left Salter-Harris III distal radial fracture and a cont...

Abstract Arthroscopic knee surgery is considered to be safe. A recent large study reported a 1.1% risk of complications, although earlier reports had significantly higher numbers, up to 8%. Complications are more common with ACL reconstruction, meniscal repair and meniscectomy. One of the most common complications is the breakage of arthroscopic in...

Cobalt metallosis from failed total hip arthroplasty (THA) has been implicated in brain toxicity with, sometimes, severe neuro-logical symptoms. We present a case of a destroyed metal on polyethylene THA, in a male patient that resulted in extreme metallosis from Titanium and Cobalt within 5 years and presented with severe neurological impairment....

The objective of this study was to define, in unilateral hip osteoarthritis (OA), factors predicting the outcome of the other hip. We examined the anteroposterior radiographs of the pelvis of 95 white patients with unilateral idiopathic (56 patients) or secondary to congenital hip diseases (39 patients) OA. The other hip was free from symptoms (pai...

This prospective, randomized study assessed the effectiveness of buffering lidocaine with sodium bicarbonate for reducing the pain associated with local anaesthetic infiltration for open carpal tunnel decompression. Twenty-one patients undergoing bilateral open carpal tunnel decompression received, in a randomized manner, lidocaine 1% with adrenali...

This prospective, randomized study assessed the effectiveness of buffering lidocaine with sodium bicarbonate for reducing the pain associated with local anaesthetic infiltration for open carpal tunnel decompression. Twenty-one patients undergoing bilateral open carpal tunnel decompression received, in a randomized manner, lidocaine 1% with adrenali...

Aims: Evaluation of the efficacy of autotransfusion in reducing the need for homologous blood transfusion in total knee arthroplasty. Methods: Prospective randomized study. Patients undergoing total knee arthroplasty were divided in: Group A (72 patients) receiving autotransfusion (Suretrans) and control group B (30 patients) with suction drainage...

Although patellofemoral symptoms after patellar-retaining knee arthroplasty are common, no evidence has been published in the literature on the potential benefit from patellar resurfacing at a later stage. This study evaluates the effect of secondary (delayed) patellar resurfacing using comparisons between 2 case-matched groups of patients with pri...

Although patellofemoral symptoms after patellar-retaining knee arthroplasty are common, no evidence has been published in the literature on the potential benefit from patellar resurfacing at a later stage. This study evaluates the effect of secondary (delayed) patellar resurfacing using comparisons between 2 case-matched groups of patients with pri...

We present a salvage technique for distal femoral interlocking under direct vision through a window in the anterior femoral cortex in a subgroup of six patients, among those presented to our institution during the last 10 years with a femoral shaft fracture treated with reamed, locked intramedullary nailing. The common characteristic of these patie...

Aims: to report the rising incidence of hip fractures in our region. Methods: all hip fractures admitted in our department for a year (2001) were recorded. Comparisons were made with 1981 and 1991 from the hospital’s archives. Demographic data were obtained from the National Statistics Organisation. Results: the population of Magnesia has increased...

Aims: To report our results with bipolar hemiarthro-plasty in octogenarians with pertrochanteric fractu-res, severe osteoporosis and dementia. Methods: Between 1996 and 2000 we treated 82 trochanteric fractures in 79 patients (27 males/52 females) above the age of 80 with severe osteoporosis and dementia, using bipolar hemiarthroplasty. Mean age wa...

To investigate whether transient-evoked and distortion-product (DP) otoacoustic emissions (OAEs) are more sensitive than pure-tone audiometry (PTA) in revealing gentamicin-induced ototoxicity in children with cystic fibrosis (CF). Prospective case-control study. Tertiary referral audiologic center in conjunction with an academic pediatric CF unit....

In a prospective, randomised study we have compared the pertrochanteric external fixator (PF) with the sliding hip screw (SHS) in 100 consecutive patients who were allocated randomly to the two methods of treatment. Details of the patients and the patterns of fracture were similar in both groups. Follow-up was for six months. Use of the PF was asso...

This radiographic retrospective cohort study aims to identify relations between the prearthrotic anatomy of the hip joint and the type of subsequent osteoarthrosis (OA). Radiographs of 64 hips in 47 patients were evaluated. Several anatomical indices were measured on radiographs obtained before the onset of OA. The location, type and grade of OA we...

In a prospective, randomised study we have compared the pertrochanteric external fixator (PF) with the sliding hip screw (SHS) in 100 consecutive patients who were allocated randomly to the two methods of treatment. Details of the patients and the patterns of fracture were similar in both groups. Follow-up was for six months. Use of the PF was asso...

In 44 surgical high-risk patients (ASA grade 3 or 4) pertrochanteric fractures were treated with a newly developed external fixator; all fractures healed within 14 weeks. Seven patients had a superficial pin tract infection and in 12 patients the fracture united with a shortening of 18 (5-30) mm. No implant failures or limitation of knee movements...

Although external fixation has been successfully used for pertrochanteric fractu-res in selected patients, it has not gained wide acceptance.This prospective, randomi-sed study compares a special Pertrochan-teric External Fixator (PEF) with the Sli-ding Hip Screw (SHS). 100 patients with pertrochanteric fractures were ran¬domly allocated treatment...

Although stress fractures of the tibial diaphysis are common among athletes, the proximal tibial metaphysis is an unusual location for such injuries. In addition, their proximity to the knee joint can obscure the diagnosis. We present a case of a stress fracture of the medial tibial condyle in a long-distance runner, aiming to increase awareness ab...

Osteogenesis imperfecta (OI) is a connective tissue disorder characterized by osseous fragility, blue sclerae and hearing loss. In order to assess the impact of stapedotomy on improving hearing on OI, a retrospective, one-group, pre-test-post-test design was used to compare the pre-operative and post-operative audiograms of nine OI patients, treate...

The early detection of hearing impairment caused by ototoxic drugs, such as aminoglycosides, has been the aim of research world-wide. Histopathological studies have shown that the outer hair cells are the most susceptible cochlear components to injury from ototoxic drugs like aminoglycosides. Otoacoustic emissions reflect the functional status of t...