[Chronic instability of the proximal ankle joint].
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To determine whether operative treatment is superior to conservative therapy, 60 patients were randomized to surgical suture and cast immobilisation for six weeks (n = 30) or cast immobilisation alone for the same time (n = 30) for acute rupture of the ligaments of the ankle. Variables of well being (ability to work, to do sports, dysesthesia, pain during exercise, swelling, tendency for recurrent distorsion), stability (dislocation and tilting of the talus on X-ray examination) and the radiological evidence of arthrosis were chosen as endpoints. Complete follow-up was obtained one year after the accident. In both groups we did not find any evidence of arthrosis one year after the accident. No significant differences were found between the study groups neither for the parameters of well being nor for objective criteria of stability. No correlation was found between well being and stability of the ankle joint. These results suggest that for the chosen endpoints no treatment modality can be recommended after one year follow-up. Only long-term studies using incidence of arthrosis as the most important endpoint will be able to answer the question whether conservative or operative treatment of rupture of the ankle ligaments is superior.
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Nearly 40 years after ankle arthrography was first introduced, the anterior and inversion stress views of the ankle are still widely preferred as a noninvasive method of evaluating ligament injuries in the upper ankle. We consider the stress test, bilaterally performed using a standardized stress apparatus, as a basic examination by which to differentiate between slight and severe sprain. Intensive muscle splinting due to painful swelling can sometimes be treated by injection of local anesthetic. Like many authors, we perform ankle arthrography in cases where there is a significant difference between the clinical findings and the stress test. The technique of ankle arthrography can be readily learned and is extremely accurate in delineating the extent of ligamentous injury produced by moderate or severe ankle sprains. It can be performed in any X-ray department.
In six ballet dancers with overuse syndromes of the foot a study on the effect of taping on stabilisation, proprioception and muscular activity was performed. By using synchronous surface electromyography and 3-dimensional motion analysis three standard ballet positions without and with applied tape were performed. Muscular activities of pronator muscles (peroneus longus) and supinator muscles (tibialis posterior) were recorded. EMG measurements showed significant differences between patients with stable or unstable ankles and painful or pain-free feet. Applying tape led to significant changes of muscle activities in height and antagonist reflex patterns. These changes were highest in dancers with unstable ankle joints and metatarsalgia.
Below knee amputation remains the treatment of choice for most patients with aggressive tumours of the distal tibia. We report the clinical and functional outcome of limb preserving surgery and endoprosthetic reconstruction of the distal tibia and ankle joint in five patients who declined amputation. The mean age was 32 years. Two had osteosarcoma, one Ewing's sarcoma, leiomyosarcoma and Giant cell tumour. Three patients developed significant complications including local recurrence, wound dehiscence and infection, and fibula impingement. Despite these complications the patients declined amputation even in the presence of significant discomfort. Early function was excellent in all patients but deteriorated with time. The patients still maintained an Enneking Score of more than 50%. Some patients are unwilling to undergo amputation for aggressive tumours of the distal tibia. For these, excision and reconstruction with endoprosthesis allow early functional recovery but there is significant medium term morbidity and functional deterioration.
At the authors' institution from 1964 to 1984, ankle arthrodesis was performed in 13 patients with insulin-dependent diabetes mellitus who had a history of ankle sprain or fracture. Nine patients were diagnosed by clinical exam as having a peripheral neuropathy; nine patients had roentgenographic evidence of neuropathic arthropathy prior to surgery. Follow-up study with examination and roentgenograms averaged 42 months. Clinical and roentgenographic union was achieved in seven ankles at an average of 16 weeks. Two patients developed a nonunion, three had an amputation, and one died at two months postoperatively. Thirteen complications occurred in eight of the 13 patients (62%). Twenty reoperations, excluding pin removal, were performed in eight patients (62%). A satisfactory result was achieved in only 50% overall and in only 38% of patients with roentgenographic changes of neuropathic arthropathy. Neuropathic arthropathy contributes to the inordinate complication and failure rates. Ankle arthrodesis should be considered with caution in the diabetic patient.