technetium-tc-99m-medronate and Tendinopathy

Patients with benign solitary enchondromas of the proximal humerus frequently present to the diagnosing physician with shoulder pain. Once the lesion is considered benign, emphasis can be placed on identifying the etiology for the pain. We reviewed our experience with these patients to identify the cause of the presenting pain. A retrospective review of clinical records and radiographic studies (radiographs, magnetic resonance images, and bone scans) was done for all patients presenting to an orthopaedic oncology unit with solitary enchondroma of the proximal humerus. Attention was focused on diagnostic evidence of additional disease in the shoulder. Fifty-seven patients (mean age, 53.6 years) met the criteria of the study and were included for evaluation. Of patients presenting with pain, 82% (47 of 57 patients) had findings seen on magnetic resonance imaging scans that correlated with the initial clinical diagnostic impression, suggesting that other disease was present that could explain the pain. Solitary enchondromas of the proximal humerus often are found incidentally during the initial evaluation of patients with shoulder pain. This study showed that additional treatable disease usually is present in patients with enchondromas of the proximal humerus.

Topics: Acromioclavicular Joint; Algorithms; Biopsy; Bone Neoplasms; Chondroma; Comorbidity; Female; Humans; Humerus; Magnetic Resonance Imaging; Male; Middle Aged; Radionuclide Imaging; Radiopharmaceuticals; Retrospective Studies; Rotator Cuff; Shoulder Impingement Syndrome; Shoulder Pain; Technetium Tc 99m Medronate; Tendinopathy

A case report of radionuclide bone scan findings in a patient with peroneus brevis tendonitis is presented. Peroneal tendonopathy is a common cause of lateral ankle pain. Although magnetic resonance imaging (MRI) findings have been described in the literature, we know of no other detailed report of three-phase bone scan findings, which we believe can provide an alternate means to diagnose this condition. The positive findings consist of a curvilinear band of increased activity that corresponded to the anatomic position of the peroneus brevis tendon and was detected only on the first two phases of the study.

Topics: Adult; Ankle; Female; Fibula; Humans; Radionuclide Imaging; Radiopharmaceuticals; Technetium Tc 99m Medronate; Tendinopathy

Our goal was to describe the typical scintigraphic pattern of posterior tibial tendinitis.. Bone scintigraphs were reviewed to study the scintigraphic characteristics of posterior tibial tendinitis in nine patients with posterior tibial tendinitis related to generalized rheumatic disease and in eight patients with isolated posterior tibial tendinitis.. The scintigraphic pattern of posterior tibial tendinitis is elongated increased uptake in the blood flow and blood-pool phase along the anatomical course of the tibialis posterior tendon at the medial aspect of the ankle (malleolus region). Static images demonstrate increased focal abnormal uptake at the medial malleolus and in the navicular bone.. Bone scintigraphy depicts a characteristic pattern of posterior tibial tendinitis. It is useful for the early diagnosis of idiopathic- or rheumatic-related posterior tibial tendinitis.

Topics: Adult; Aged; Female; Humans; Male; Middle Aged; Radionuclide Imaging; Rheumatic Diseases; Technetium Tc 99m Medronate; Tendinopathy; Tibia

Patellar tendinitis is a chronic overuse injury causing pain and tenderness over the proximal insertion of the patellar tendon. Its management is usually conservative, but in intractable cases surgery is effective. Bone scintigraphy has been suggested as a useful investigation in these patients, although we are aware of no large series supporting this. Thirty-four patients with intractable symptoms of patellar tendinitis were treated surgically. The operative specimens were graded histologically and compared with preoperative radionuclide bone scans. The histological findings confirmed tendon and or tendon sheath abnormalities in all the samples. The predominant abnormalities were increased vascularity, fibroblast proliferation, acid mucopolysaccharide and haemosiderin deposition. Bone scintigraphy showed 24 (71%) patients to have abnormalities on the delayed images, 8 with diffusely increased activity in the patella and 16 with increased activity localized to the lower pole. Patients with abnormal bone scans had significantly more severe histological changes in their tendons. These findings support the use of radionuclide bone scans in the pre-operative assessment of patellar tendinitis correlating well with histopathological severity of the disease process. The 10 false-negative cases (29%), however, suggest that bone scans are unhelpful in the routine diagnosis and management of this condition.

Topics: Adolescent; Adult; Bone and Bones; Female; Humans; Male; Middle Aged; Patella; Radiography; Radionuclide Imaging; Retrospective Studies; Technetium Tc 99m Medronate; Tendinopathy

Topics: Adult; Colitis, Ulcerative; Female; Humans; Ligaments; Radionuclide Imaging; Sacroiliac Joint; Spondylitis; Technetium Tc 99m Medronate; Tendinopathy

A case is presented in which uptake of Tc-99m MDP was noted at the sites of tendon and ligament attachments to the calcaneus in inflammatory enthesopathy. Following successful treatment with corticosteroids, the uptake was markedly decreased in accordance with subsidence of clinical manifestations and normalization of laboratory data. Radionuclide bone imaging may be useful in evaluating the response to treatment with corticosteroids as well as revealing the active disease sites in inflammatory enthesopathy.

Topics: Bone and Bones; Humans; Male; Middle Aged; Radionuclide Imaging; Technetium Tc 99m Medronate; Tendinopathy

Three patients with the signs and symptoms of patellar tendonitis were studied with technetium-99m utilizing the triple phase technique. The scans demonstrated characteristic abnormal radiotracer localization at the inferior pole of the patella or tibial tuberosity on early and delayed images. The regional patellar anatomy likely explains the bone scintigraphic findings in patellar tendonitis.

Topics: Adult; Female; Humans; Male; Patella; Radionuclide Imaging; Sports; Technetium Tc 99m Medronate; Tendinopathy; Tibia