Archives of orthopaedic and trauma surgery
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Arch Orthop Trauma Surg · Jul 2001
Hip arthropathy associated with hemodialysis. Radiological and laboratory evaluation of 56 hemodialysis patients.
There were 56 consecutive patients enrolled in our study from the outpatient clinic of our institution, mean age of 59 years, who had been on hemodialysis for 2-26 years. The duration of hemodialysis was less than 10 years for 36 patients (short-term group) and 10 years or more for 20 patients (long-term group) with a mean duration of 11 years at time of the investigation. In the short-term group, plain radiography revealed bone cysts in 9 hips (17%) and joint space narrowing in 10 hips (19%), while in the long-term group, there were bone cysts in 19 hips (48%) and joint space narrowing in 6 hips (15%). ⋯ Hip arthroplasties were performed in 3 patients suffering from femoral neck fracture due to bone cysts. All of them showed marked bone loss (mean 0.380 g/cm2). In conclusion, plain radiography and dual-energy X-ray absorptiometry are useful for evaluating the hip arthropathy of hemodialysis patients, especially those who have undergone long-term hemodialysis.
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Arch Orthop Trauma Surg · Jul 2001
The contribution of vitamin C to healing of experimental fractures.
The benefits of various minerals and vitamins on fracture healing have been demonstrated in animal models. Vitamin C is an essential substance in fracture healing but has not been studied previously on an experimental basis. Sixteen rats were grouped randomly into control and vitamin C-supplemented groups. ⋯ One group received single high dose of vitamin C intramuscularly. On the 5th, 10th, 15th, and 20th days, two rats from each group were killed and the tibias examined under light microscopy. It was seen that the vitamin C-supplemented group went through the stages of fracture healing faster compared with the control group.
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Arch Orthop Trauma Surg · Jul 2001
Immunolocalization of the angiogenetic factor pleiotrophin (PTN) in the growth plate of mice.
The aim of this study was to find out whether and where the angiogenic agent pleiotrophin (PTN) occurs within the growth plate. We investigated paraffin-embedded tissue sections of ten male mice with an antibody directed against the recombinant PTN. ⋯ The resting zone and the proliferation zone were PTN negative. The results of our study suggest that the known angiogenetic peptide PTN plays a role in the process of angiogenesis in the growth plate.
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Arch Orthop Trauma Surg · Jun 2001
Randomized Controlled Trial Comparative Study Clinical TrialSurgical treatment of resistant tennis elbow. A prospective, randomised study comparing decompression of the posterior interosseous nerve and lengthening of the tendon of the extensor carpi radialis brevis muscle.
We compared decompression of the posterior interosseous nerve (PIN) and lengthening of the distal tendon of the extensor carpi radialis brevis (ECRB) for treatment of tennis elbow in a randomised trial of 28 patients. Fourteen underwent decompression of PIN and 14, lengthening of ERCB. The groups did not differ significantly with regard to age, sex and work activities. ⋯ The outcome after the primary operation was successful in 50% of the PIN group and in 43% of the ECRB group. Four of the 5 patients with a poor outcome were reoperated in the former group and 3 in the latter. The overall outcome after a mean follow-up of 31 months after the primary operation was successful in 60% of the cases.
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Arch Orthop Trauma Surg · Jun 2001
The influence of fracture etiology and type on fracture healing: a review of 104 consecutive tibial shaft fractures.
This study was conducted to determine retrospectively the factors which influence fracture healing and risk for nonunion in patients with tibial shaft fractures. One hundred consecutive patients with 104 tibial shaft fractures and a mean age of 40 (14-85) years were reviewed. Fractures were classified according to the AO classification system. ⋯ However, conservative treatment of a tibial shaft fracture means immobilization of the lower leg for a long period of time, especially if healing is delayed. Thus, it is important to consider the risk of healing complications when planning the appropriate treatment method in the early stage after the injury. The purpose of this study was to analyze complications such as delayed union and nonunion and to identify factors which affect the healing of tibial shaft fractures.