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Biomedical subjects

A Chechik

Publications and source records attributed to A Chechik.

At least 19 recordsLinked to original sources
PubMed2002

Total hip arthroplasty in patients younger than 30 years of age following developmental dysplasia of hip (DDH) in infancy.

Total hip arthroplasty (THA) in young patients is a controversial subject, due to the high failure rates reported in the literature, and even more so in patients with a history of developmental dysplasia of the hip (DDH). A group of 11 patients, all under the age of 30 years at the time of surgery, underwent THA due to congenital dislocation of the hip. Mean age at the time of operation was 23.3 years (range 16-30 years). The mean follow-up period was 9 years (range 3-14 years). The mean preoperative Harris' hip score (HHS) was 56.9 compared with the postoperative HHS of 90.6. Due to aseptic loosening of the cup, 4 patients underwent successful revision arthroplasty. These encouraging medium-term results in our patients suggest that THA may be a good solution for young patients suffering from coxarthrosis due to DDH, at least temporarily, especially when other alternatives, such as arthrodesis or resection arthroplasty, are considered.

Adolescent↗
PubMed2001

A young athlete with myositis ossificans of the neck presenting as a soft-tissue tumour.

Myositis ossificans is usually the result of direct injury to a muscle and is a self-limiting disease. It may present as a soft-tissue mass with a broad differential diagnosis, including highly malignant tumours, such as soft-tissue sarcomas. Many theories can be found concerning the aetiology of myositis ossificans, but minor or major traumas are considered to be the most common cause. A unique case of myositis ossificans of the neck in a 17-year-old professional, female, ground gymnast, who presented initially with a soft-tissue tumour, was treated successfully. The main differential diagnosis is presented along with typical radiographic features on conventional radiography, computerised tomography and magnetic resonance imaging, and typical pathological appearance, such as the pathognomonic "zoning phenomenon". Myositis ossificans should be added to the differential diagnosis of every young patient who engages in sport presents with a soft-tissue mass. Careful padding of the area and teaching the rolling technique to avoid repeated injuries to the neck can prevent recurrence.

Adolescent↗
PubMed2001

Subtalar arthritis as a presenting symptom of Familial Mediterranean fever: case report and literature review.

Familial Mediterranean fever (FMF) is an autosomal, recessive disease affecting mainly people of Mediterranean origin. The primary pattern of FMF is acute, self-resolving periodic attacks of high-grade fever, accompanied by either peritonitis, pleuritis, or arthritis and sometimes typical ankle rash that simulates erysipelas. Rare manifestations, such as pericarditis or massive knee effusion, have been reported in the literature as a presenting symptom of FMF. The final diagnosis has recently become more accurate by identification of the gene for FMF. We describe a unique presenting symptom of subtalar arthritis with no former personal or family history of FMF. A genetic evaluation revealed a 694/726 genetic variant that confirmed the diagnosis of FMF. Treatment with daily colchicine, 1 mg/day, resulted in complete resolution of all complaints.

Adult↗
PubMed2000

Bone allograft in revision total knee replacement.

Revision total knee replacement (TKR) is often associated with the necessity to reconstruct a certain amount of bone loss. In a retrospective study we reviewed the records of 137 patients who had undergone revision TKR in our department between 1990 and 1996, due to loosening or inflection. Bone allografts were used in 91 patients (67%) to accomplish stable, new prostheses. Three types of bone loss were identified in this group: Type I - minor, Type II - moderate, and Type III - large bone defects, located on either side of the knee joint - A, or both sides - B.The treatment results of these 91 patients, according to the type of bone loss, are presented, showing good functional outcome when utilizing bone allografts in revision TKR. However, careful preoperative planning, identification of bone loss type, and a well-equipped bone bank are mandatory to the success of the operation.

Journal Article↗
PubMed2000

Total hip arthroplasty in patients with below-knee amputations.

We present a unique small group of 5 patients with below-knee amputation who underwent total hip arthroplasty after a displaced subcapital fracture of the femur. Three patients were operated on after failed fixation of the fracture, and 2 were operated on as a primary procedure. All 5 patients resumed their prefracture level of activity and mobilization with no deterioration during follow-up (average, 69 months [range, 22-98]). These encouraging results call for use of total hip arthroplasty or hemiarthroplasty as the primary treatment modalities of patients with displaced subcapital femoral head fracture in an extremity with below-knee amputation.

Aged↗
PubMed2000

Fishing penetration injuries.

BACKGROUND: Fishing involves millions of people throughout the world and is considered a pleasant and harmless sport. However, many kinds of injury can occur. Penetrating injuries to the extremities by fishing equipment such as hooks and harpoons, and even by scales, or infection from penetration of scales etc are relatively common although hardly ever reported in the literature. METHODS: Illustrative cases of penetrating fishing injuries are presented and discussed, with suggestions for the recommended management of these types of injury. RESULTS: Most of these objects are designed to catch and hold resisting fish, so are usually sharp and narrow in the front and wider in the rear with or without spurs. Because of their very irregular shape, simple extraction by pulling is not recommended, because further damage may occur. CONCLUSIONS: The use of the appropriate imaging modalities, a full knowledge of the contours of the object, and careful preplanning of the method of treatment are very important.

Adolescent↗
PubMed1999

Revision hip arthroplasty in patients with a history of previous malignancy.

BACKGROUND AND OBJECTIVES: The potential association between implants and malignancy has been discussed in the literature, but never as a cause of loosening of joint arthroplasty. METHODS: The records of all patients who underwent revision arthroplasty at our institution between 1992 and 1995 were reviewed. RESULTS: Among 93 patients who underwent revision hip arthroplasties, 11 (11.8%) had a history of previous malignancy. At surgery, in 2 of these patients, metastasis was found to be the cause of loosening in the affected hip. CONCLUSIONS: When revision hip arthroplasty is considered, patients with a history of malignancy require attenuated pre-, intra-, and postoperative workup. Management algorithm in such cases is proposed.

Aged↗
PubMed1999

Effect of changing the saddle angle on the incidence of low back pain in recreational bicyclists.

OBJECTIVE: According to the literature, 30-70% of cyclists suffer from cervical, dorsal, or lumbar back pain. This study was conducted to evaluate one of the possible causes of low back pain and to suggest a solution by appropriate adjustments to the bicycle. METHODS: Serial fluoroscopic studies were performed while cyclists sat on different types of bicycle (sports, mountain, and city). Pelvic/spine angles were measured at different seat angles, and the related force vectors analysed. RESULTS: There was a tendency towards hyperextension of the pelvic/spine angle which resulted in an increase in tensile forces at the promontorium. These forces can easily be reduced by appropriate adjustment of the seat angle--that is, by creating an anterior inclining angle. The findings of the biomechanical analysis were then applied to a group of cyclists who were members of a cycling club and who complained of low back pain. After appropriate adjustment of the saddle angle, most of the cyclists (>70%) reported major improvement in the incidence and magnitude of their back pain. CONCLUSIONS: The incidence and magnitude of back pain in cyclists can be reduced by appropriate adjustment of the angle of the saddle. It is important that these findings be conveyed to cyclists, bicycle salesmen, trainers, and members of the general public who engage in cycling, in order to decrease the prevalence of back pain.

Adult↗
PubMed1997

The "learning curve" of total hip arthroplasty.

Total hip arthroplasty (THA) is one of the major breakthroughs in modern orthopedics this century. Since its introduction in the early 1960s by Sir J. Charnley, it has become the most common form of arthroplasty. The art of performing THA has developed to a large extent, yet with the inevitable "price" of a learning curve. The rates of early and late complications reported in the orthopedic literature have been decreasing gradually, along with improved short- and long-term results. We report the results of two similar series of THA performed with an interval of 15 to 20 years, which show that the improvement of the results that form the learning curve of THA at our institution is statistically significant.

Aged↗
PubMed1990

Massive bone allograft: a salvage procedure for complex bone loss due to high-velocity missiles--a long-term follow-up.

The treatment of high-velocity missile injury to the limbs is often associated with segmental bone loss, as well as damage to neurovascular and soft tissue. In such "limb threatening" cases, massive bone allograft can fill the bone defect and offer stability to the soft tissue reconstruction. The return of function in the affected limb is relatively rapid when using this method as a primary procedure. The indications for use of this technique and illustrative case reports are presented and discussed.

Adult↗
PubMed1985

Isolated anterior inguinal dislocation of the hip joint.

Anterior dislocation of the hip joint is rare, accompanied usually by a fracture of adjacent bony structures. A case of isolated anterior inguinal dislocation of the hip joint is hereby presented with 22 months of followup. The mechanism of this rare injury is usually forcible abduction and extension of the hip joint. Early diagnosis and reduction, with immediate post-reduction roentgenograms to discover any fragments in the joint space, should be done. In this patient, X-rays 11 and 22 months after reduction appeared normal.

Aged↗
PubMedDate not supplied

Total hip arthroplasty after childhood septic hip in patients younger than 25 years of age.

Childhood septic hip should usually be treated immediately by arthrotomy and antibiotic. Even if treated correctly, the affected hip may become osteoarthritic and functionally disabling. Usually the literature is not in favor of total hip arthroplasty in young patients, and the reports are on patients older than 32 years of age. We present here a unique group of very young patients with early coxarthrosis caused by septic hip in childhood, with an average age of 19.14 years (range, 14-25) at the time of the arthroplasty. The Harris hip score improved from a preoperative mean of 58.43 to a postoperative mean of 94.14. The follow-up period ranged between 2 and 24 years, with an average of 8.14 years. We conclude that total hip arthroplasty in young people with early coxarthrosis caused by septic hip in childhood provides good functional results.

Adolescent↗