Imaging the Post-Operative Wrist and Hand

Campbell, Rob; Campbell, Doug

doi:10.1007/174_2010_140

Cited by 3 publications

(26 citation statements)

References 31 publications

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“…Clinically, low-dose microwave treatment is administered to patients suffering from acute soft tissue injuries or postoperative pain [ 7 , 40 ]. Previous studies in vivo and in vitro suggested that a low dose of microwaves reduced edema [ 2 , 41 ].…”

Section: Discussionmentioning

confidence: 99%

Low dose of continuous – wave microwave irradiation did not cause temperature increase in muscles tissue adjacent to titanium alloy implants – an animal study

et al. 2013

BMC Musculoskelet Disord

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BackgroundResearch studies on the influence of radiofrequency electromagnetic radiation on implants in vitro have failed to investigate temperature changes in the tissues adjacent to the implants under microwave therapy. We therefore, used a rabbit model in an effort to determine the impact of microwave therapy on temperature changes in tissues adjacent to the titanium alloy implants and the safety profile thereof.MethodsTitanium alloy internal fixation plates were implanted in New Zealand rabbits in the middle of femur. Microwave therapy was performed by a 2450 MHz microwave generator 3 days after the surgery. Temperature changes of muscles adjacent to the implants were recorded under exposure to dose-gradient microwave radiation from 20w to 60w.ResultsSignificant difference between control and microwave treatment group at peak temperatures (Tpeak) and temperature gap (Tgap= Tpeak-Tvally) were observed in deep muscles (Tpeak, 41.63 ± 0.21°C vs. 44.40 ± 0.17°C, P < 0.01; Tgap, 5.33 ± 0.21°C vs. 8.10 ± 0.36°C, P < 0.01) and superficial muscles (Tpeak, 41.53 ± 0.15°C vs. 42.03 ± 0.23°C, P = 0.04; Tgap, 5.23 ± 0.21°C vs. 5.80 ± 0.17°C, P = 0.013) under 60 w, and deep muscles (Tpeak, 40.93 ± 0.25°C vs. 41.87 ± 0.23°C, P = 0.01; Tgap, 4.73 ± 0.20°C vs. 5.63 ± 0.35°C, P = 0.037) under 50w, but not under 20, 30 and 40w.ConclusionOur results suggest that low-dose (20w-40w) continuous-wave microwave irradiation delivered by a 2450 MHz microwave generator might be a promising treatment for patients with titanium alloy internal fixation, as it did not raise temperature in muscle tissues adjacent to the titanium alloy implant.

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Section: Discussionmentioning

confidence: 99%

Low dose of continuous – wave microwave irradiation did not cause temperature increase in muscles tissue adjacent to titanium alloy implants – an animal study

et al. 2013

BMC Musculoskelet Disord

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“…However, a part of patients suffered from painful symptoms such as implant-related pain, delayed union or nonunion so forth after the surgery [2]. Typically, clinical hyperthermia induced by focused microwave has been applied to patients with muscle-skeletal injuries [3-7].…”

Section: Introductionmentioning

confidence: 99%

Effects of Low-Dose Microwave on Healing of Fractures with Titanium Alloy Internal Fixation: An Experimental Study in a Rabbit Model

Zhang

et al. 2013

PLoS ONE

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BackgroundMicrowave is a method for improving fracture repair. However, one of the contraindications for microwave treatment listed in the literature is surgically implanted metal plates in the treatment field. The reason is that the reflection of electromagnetic waves and the eddy current stimulated by microwave would increase the temperature of magnetic implants and cause heat damage in tissues. Comparing with traditional medical stainless steel, titanium alloy is a kind of medical implants with low magnetic permeability and electric conductivity. But the effects of microwave treatment on fracture with titanium alloy internal fixation in vivo were not reported. The aim of this article was to evaluate the security and effects of microwave on healing of a fracture with titanium alloy internal fixation.MethodsTitanium alloy internal fixation systems were implanted in New Zealand rabbits with a 3.0 mm bone defect in the middle of femur. We applied a 30-day microwave treatment (2,450MHz, 25W, 10 min per day) to the fracture 3 days after operation. Temperature changes of muscle tissues around implants were measured during the irradiation. Normalized radiographic density of the fracture gap was measured on the 10th day and 30th day of the microwave treatment. All of the animals were killed after 10 and 30 days microwave treatment with histologic and histomorphometric examinations performed on the harvested tissues.FindingsThe temperatures did not increase significantly in animals with titanium alloy implants. The security of microwave treatment was also supported by histology of muscles, nerve and bone around the implants. Radiographic assessment, histologic and histomorphometric examinations revealed significant improvement in the healing bone.ConclusionOur results suggest that, in the healing of fracture with titanium alloy internal fixation, a low dose of microwave treatment may be a promising method.

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“…4 On the contrary, the approach to imaging the postoperative wrist is seldom systematic and varies according to the preferences and personal experience of the referring hand surgeon. 5,6 In most cases, the postsurgical assessment is limited to clinical and radiographic follow-up. In the postoperative follow-up of fractures, computed tomography (CT) is well integrated into the clinical practice to assess consolidation, positioning of the osteosynthesis material, or associated complications.However, the role of imaging methods in the postsurgical assessment of articular and periarticular soft tissue structures, such as TFCC, capsule, and ligaments, is less established.…”

mentioning

confidence: 99%

“…In the postoperative follow-up of fractures, computed tomography (CT) is well integrated into the clinical practice to assess consolidation, positioning of the osteosynthesis material, or associated complications.However, the role of imaging methods in the postsurgical assessment of articular and periarticular soft tissue structures, such as TFCC, capsule, and ligaments, is less established. 5,6 The literature has paid little attention to the postsurgical imaging of the ulnar aspect of the wrist. But postsurgical imaging evaluation is essential to rule out the failure of the surgical technique, postsurgical complications, recurrence of the lesion, and other associated pathologies.…”

mentioning

confidence: 99%

“…But postsurgical imaging evaluation is essential to rule out the failure of the surgical technique, postsurgical complications, recurrence of the lesion, and other associated pathologies. 5,6 Surgical normal morphological changes should not be mistaken for pathologic changes. Many technical solutions used for other joints, such as knee and shoulder, can be applied to the wrist.…”

mentioning

confidence: 99%

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Postoperative Imaging of Ulnar Wrist Pain

Cerezal

Llopis

Canga

et al. 2021

Semin Musculoskelet Radiol

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Ulnar wrist pain, caused by a broad spectrum of bone and soft tissue injuries, is the most common clinical condition of the wrist. Multiple surgical techniques and their variants in the treatment of these injuries are constantly evolving. Postoperative evaluation of the wrist for many surgeons is limited to serial clinical and radiographic monitoring. However, imaging methods such as ultrasonography, computed tomography (CT), magnetic resonance imaging (MRI), and arthrographic techniques (arthrographic CT and arthrographic MRI) play a fundamental role in diagnosing and managing postsurgical complications.The several critical aspects in evaluating the postsurgical wrist imaging spectrum are familiarity with the surgical techniques, knowledge of the original clinical problem, understanding the strength and limitations of the different radiologic modalities, and effective communication between surgeon and radiologist.

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Imaging the Post-Operative Wrist and Hand

Cited by 3 publications

References 31 publications

Low dose of continuous – wave microwave irradiation did not cause temperature increase in muscles tissue adjacent to titanium alloy implants – an animal study

Low dose of continuous – wave microwave irradiation did not cause temperature increase in muscles tissue adjacent to titanium alloy implants – an animal study

Effects of Low-Dose Microwave on Healing of Fractures with Titanium Alloy Internal Fixation: An Experimental Study in a Rabbit Model

Postoperative Imaging of Ulnar Wrist Pain

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