Injuries of the wrist; dislocation of the lunate, dislocation of the lunate with fracture of the scaphoid, perilunar dislocation, transcapho-perilunar dislocation.
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Humans↗
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[Traumatic dislocations and fracture-dislocations of the hip, with the exception of fracture-dislocations with depression of the cotyloid].
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Child↗
The results of treatment of dislocation and fracture--dislocation of the elbow--a review of 41 patients.
Forty-one patients with 42 elbow dislocations, of which 13 had acute simple dislocations, 21 had fracture-dislocations and 8 had neglected elbow dislocations, were evaluated with regard to limitation of motion, pain, instability and residual neurovascular deficit. All patients with acute simple dislocation were treated with closed reduction, but the duration of immobilization before commencement of active motion varied. Open-reduction was indicated for failed closed reduction and neglected-dislocations. Internal fixation as a primary procedure was only performed for displaced fracture-dislocation. Excision of radial head or tricepsplasty were performed if the reduction was impossible in neglected elbow dislocation. Despite a good results in acute simple dislocation, 33.07% had flexion contracture of between 5 to 30 degrees. In fracture dislocation, satisfactory results were seen in whom the elbow was immobilized for three weeks or less. Neglected-dislocation is associated with poor functional outcome, 37.5% were good and 62.5% were poor. Prolonged immobilization after injury was strongly associated with an unsatisfactory result. The results indicate that early properly supervised active motion is a key factor in the rehabilitation of elbow dislocation.
Adolescent↗
Perilunate dislocations and fracture-dislocations: a multicenter study.
A series of 166 perilunate dislocations and fracture-dislocations from 7 centers was retrospectively studied. The diagnosis was missed initially in 41 cases (25%). A classification system was presented. The perilunate fracture-dislocations were more frequent than the perilunate dislocations at a ratio of two to one. The displacement was dorsal in 161 cases (97%) and palmar in only 5 (3%). The dorsal transscaphoid perilunate fracture-dislocations represented 96% of the dorsal perilunate fracture-dislocations and 61% of the whole series. The clinical and radiologic outcome of 115 perilunate dislocations and fracture-dislocations with at least 1 year and an average of 6 years 3 months of follow-up was studied. Open injury and delay of treatment had an adverse effect on clinical results, whereas anatomical type had less influence. In cases treated early, the clinical results were satisfactory but the incidence of post-traumatic arthritis was high (56%). In the dorsal perilunate dislocation group of pure ligamentous injuries and in the dorsal transscaphoid group, the best radiologic results were observed after open reduction and internal fixation. In the latter group, the fixation of the scaphoid alone was not always sufficient and left occasionally scapholunate dissociation, lunotriquetral dissociation, ulnar translation of the carpus, or other carpal collapse patterns. The initial appraisal of both the osseous and ligamentous pathology was very important.
Adult↗
Traumatic dislocation and fracture-dislocation of the hip: a long-term follow-up study.
OBJECTIVE: Traumatic dislocation and fracture-dislocation of the hip is an absolute orthopedic emergency that is steadily increasing in incidence. Early recognition and prompt, stable reduction is the essence of successful management. A delay in recognition and reduction leads to preventable complications and morbidity. The purpose of this retrospective study is to identify prognostic factors that predict long-term outcome after hip dislocation. METHODS: Between 1980 and 1994, 107 patients with traumatic dislocation of the hips were treated, and 62 are reviewed in this study. There were 57 posterior fracture-dislocations and 5 anterior-obturator dislocations. All of the patients' charts were reviewed. The physical examinations and radiologic controls of the patients who were called for last follow-up examination were performed by the first two authors (V.S. and E.K.). Anterior and posterior fracture-dislocations were classified according to the classification system developed by Steward and Milford and femoral head fractures were classified according to the Pipkin classification. All of the hips were classified as very good, good, medium, fair, and poor according to the functional evaluation system described by Merle d'Aubigne. Statistical analysis of the results was performed. RESULTS: There were 47 male patients and 15 female patients, with ages ranging from 14 to 72 years (mean, 34.5 years). Traffic accidents constituted the leading cause of traumatic dislocation in this series (52 cases [83.9%]). Associated injuries were found in 44 cases (71%). Fifty patients were treated with closed reduction, and 12 patients were treated with open reduction. Thirty-five hips (56.5%) were reduced within 12 hours. Full weight-bearing was resumed between 2 and 10 weeks (average, 8 weeks) after injury. In follow-up periods ranging from 3.6 years to 18.4 years (mean, 9.6 years), 44 patients (71%) had very good or good to medium results. Ten patients (16.1%) developed late posttraumatic osteoarthritis of the hip, and 5 patients (9.6%) developed osteonecrosis of the femoral head. In this study, it is found that the time between injury and reduction and the associated injuries are the most important factors in long-term prognosis. CONCLUSION: We believe that good results were obtained in patients with early, stable, and accurate reductions by either closed or open methods. Concentric reduction absolutely should be confirmed by radiographs of the pelvis and, if necessary, by computed tomographic scan. The routine use of seat belts could have prevented many of these injuries.
Accidents, Traffic↗
Factors predisposing to dislocation of the Thompson hemiarthroplasty: 22 dislocations in 338 patients.
In a series of 338 patients, we have retrospectively analyzed technical and anatomical factors, which may predispose to a dislocation of the Thompson hemiprosthesis. 22 patients (7%) had at least 1 dislocation during the 6-month follow-up. The most significant independent factor predisposing to dislocation was the use of a posterior approach (dislocation rate 16%). We examined the radiographs and data on operations in the 22 patients, using 79 random patients without dislocation as controls. Factors correlating with an increase in the incidence of dislocation were the length of the residual femoral neck > 0.5 cm in short patients (< 165 cm), and considerable change in the postoperative offset of the hip. Acetabular measurements showed no correlation to the dislocation. Our findings suggest that the main factors predicting dislocation are technical and not related to anatomical measurements.
Aged↗
[Concomitant osseous and ligamentous injuries of traumatic shoulder dislocation and its significance for the pathogenesis of habitual dislocation].
161 consecutive patients with traumatic shoulder luxation between 1975 and 1983 are followed, concerning their evolution to recurrent shoulder dislocation. In 26 patients there was a recurrent shoulder dislocation in a mean time of 19 months after the first luxation. In literature the common level of recurrent dislocation is higher than our 16.1%, despite of the shorter immobilising time after the first shoulder luxation in our center. When there is no evolution to recurrent dislocation, a stable shoulder and a normal shoulder function without pain can be expected in 95%. The compression fracture of the humeral head and the avulsion of the glenoid margin were made responsible for the recurrent dislocation, mostly appearing in adult men, younger than 35 (55% of all recurrent dislocations). Because avulsion fractures of the tuberculum majus don't lead to an unstable fracture neither the existence of a compression defect in the humeral head is pathognomonic for an unstable shoulder, nor a lack of such radiological appearance excludes a recurrent dislocation. In first instance rotatory cuff injuries could be responsible for the instability of the shoulder joint. All patients with this invalidating injuries should be stimulated to an operative procedure, because after correction of an unstable shoulder by a derotation osteotomy of Weber or the elevation of the anterior margin of glenoid in the technique of Trillat good results with normal functional capacities of the shoulder can be expected.
Adolescent↗
[Dislocated multiple fragment fractures of the head of the humerus. Does dislocation of the humeral head fragment signify a worse prognosis?].
PROBLEM: The vascularity of the articular fragment is of key importance for the final outcome in three- and four-part fractures of the humeral head. Displacement of the articular segment may compromise the arterial blood supply to the humeral head and result in avascular necrosis. There is still controversy as to whether three-and four-part fracture dislocations (articular fragment outside the glenoid) have an even worse prognosis than displaced three- and four-part fractures. PATIENTS AND METHODS: Between January 1985 and May 1993, 102 patients with three- and four-part fractures of the humeral head were treated by ORIF (mostly tension band wiring) at our institution. In a retrospective study we analysed the functional (Constant 100 point score) and radiological outcome of 67 (66%) of these patients. There were 21 patients with fracture dislocations (FD), n = 5 type B2X, n = 5 type B3X, n = 3 type C2X, n = 8 type C3X, according to the classification of Habermeyer [7]. The "X" represents the dislocation of the articular fragment, whereas the classification to each type is done after reduction of the head. The remaining 46 patients presented with displaced, but not dislocated, three- and four-part fractures (DF), n = 24 type B2, n = 7 type B3, n = 3 type C2, n = 12 type C3. Average follow-up was 25 months (7-72 months). Patients with FD were significantly younger (average age 50 years) than patients with DF (average age 63 years, P < 0.05) and showed a significantly higher incidence of traumatic nerve or plexus lesions (FD 19%, DF 2%, P < 0.05). RESULTS: Concerning the functional results, there was no statistically significant difference between the two groups. The FD patients even showed a slight tendency to better results than patients with DF. This was true for the three-part fractures (average Constant score 78 versus 67 points), as well as for the four-part fractures (average Constant score 62 versus 55 points). The significantly younger age of the FD patients may explain their better results. The entire group of patients with three-part fractures showed a significantly better functional outcome (average Constant score 68 points) than patients with four-part fractures (average Constant score 55 points, P < 0.05). The rate of partial and total avascular necrosis of the humeral head was strongly correlated to the fracture type (number of fragments, fracture of the anatomical or surgical neck, according to the classification of Habermeyer),but again there was no difference between the FD and DF group (B2X: 20%, B3X: 20%, C2X: 33%, C3X: 63%; B2: 25%, B3: 29%, C2: 33%, C3: 67%). Astonishingly, the FD were not associated with an increased rate of avascular necrosis of the humeral head. Three (axillary nerve) out of the five observed primary nerve and plexus lesions had a full neurological recovery after 6-12 months; the two patients with alterations of the brachial plexus showed a slow tendency of improvement at follow-up (12 and 18 months), but still had gross muscular atrophy and impaired sensory function. CONCLUSION: In displaced three-and four-part fractures of the humeral head the dislocation of the articular segment does not seem to increase the risk of avascular necrosis, if treated by timely and careful ORIF with respect to the vascularity. Even with the increased risk of primary nerve and plexus lesions in fracture dislocations, good functional results can be achieved by early operative nerve decompression and fracture stabilization in this middle-aged patient group. However, older patients with displaced or dislocated four-fragment fractures through the anatomical neck (type C3) have a poor chance of a favourable outcome, and therefore primary prosthetic replacement should be considered.
Adult↗
Surgery for congenital dislocation of the hip in the UK as a measure of outcome of screening. MRC Working Party on Congenital Dislocation of the Hip. Medical Research Council.
BACKGROUND: Universal clinical screening for congenital dislocation of the hip to detect hip instability in neonates was introduced in the UK as a national policy in 1969, but its effectiveness is not known. We aimed to assess the extent to which surgery for congenital dislocation of the hip is the result of a failure of detection through screening or follows non-surgical treatment after detection by screening. METHODS: We established a national orthopaedic surveillance scheme and used routine hospital data for inpatients for 20% of births in the UK (Scotland and the Northern and Wessex regions) to ascertain the number of children aged under 5 years per 1000 livebirths who had received at least one operative procedure for congenital dislocation of the hip from April, 1993, to April, 1994. Estimates of the incidence of operative procedures were adjusted for under-ascertainment by capture-recapture techniques. FINDINGS: The ascertainment-adjusted incidence of a first operative procedure for congenital dislocation of the hip in the UK was 0.78 per 1000 livebirths (95% CI 0.72-0-84). Congenital dislocation of the hip had not been detected by routine screening in 222 (70%) of 318 children reported to the national orthopaedic surveillance scheme. In 112 (35%) children the diagnosis was made primarily as a result of parental concern. 67 (21%) children had previously received non-surgical treatment. In Scotland and the Northern and Wessex regions, 81 cases were notified to the national orthopaedic surveillance scheme, 62 cases were identified only through routine hospital data on inpatients, and an estimated 20 cases were not identified by either source, making a total of 163 cases. Thus, 81 (50%) of these 163 cases were identified by surveillance, 125 (77%) by routine data, and 143 (88%) by both sources. INTERPRETATION: The incidence of a first operative procedure for congenital dislocation of the hip in the UK was similar to that reported before screening was introduced. In most children who received surgery, congenital dislocation of the hip was not detected by screening. Formal evaluation of current and alternative screening policies, including universal primary ultrasound imaging, is needed.
Cross-Sectional Studies↗
[The treatment of severe talus fracture-dislocations and peritalus dislocations].
Twenty-eight cases with severe talus fracture-dislocation and 17 cases with peritalus dislocations were treated and were followed up with an average of 7 years and 2 years plus 5 months for these two groups respectively. Comparison of the results of treatment in the cases with severe talus fracture-dislocations with 3 different methods (reduction and immobilization, total talus resection and arthrodesis) was made. Satisfactory result was obtained only in cases treated with arthrodesis, therefore, this method should be considered at first in the treatment of severe talus fracture-dislocations. Impaction of intraarticular fragments and soft tissues are usually the indications of open reduction for peritalus dislocations. Severity of injury accompanied with intraarticular fractures, and open injury are the factors influencing the prognosis. Different from severe talus fracture-dislocations, talus avascular necrosis did not occur in cases with peritalus dislocations.
Adolescent↗
Posterior fracture dislocation of the hip joint: the value of the obturator-oblique view with the hip still dislocated.
OBJECTIVES: To determine the value of the Judet oblique views taken while the hip is still dislocated. STUDY DESIGN: Radiological review. SETTING: Level I trauma center. METHOD: In addition to the traditional views in fifty of 110 fracture-dislocations, Judet views were carried out with the hip still dislocated. Each of the respective views was viewed with the reviewer blinded to diagnosis and the fracture classified according to the information available on that view. The percent accuracy of each view was then calculated by comparing radiologic with intraoperative classification. Under the pretext that if any view enabled a more accurate classification of the fracture, it must be providing more information, we assessed the quantitative value of each radiologic view according to our ability to accurately classify the fracture. RESULTS: Using the CT scan alone, classification was accurate in 82 percent of cases because the CT often overdemonstrated the degree of comminution. When the added information available from the traditional radiographs was included, there was only a slight improvement (82 percent versus 84 percent). This was increased to 96 percent when the obturator-oblique dislocated view was included. CONCLUSION: Because it provides an uninterrupted view of the posterior wall, demonstrates the displacements of fragments, and provides a comparison for the reduced view, which greatly augments the available information, the obturator-oblique dislocated view should be done routinely in the assessment of all posterior fracture dislocations of the hip joint.
Hip Dislocation↗
Medial subtalar dislocation: importance of clinical diagnosis in distinguishing from other dislocations.
In an emergency situation, the clinical picture of ankle and subtalar dislocation may be similar. This may lead to the use of the improper technique of reduction, especially in a subtalar dislocation, resulting in the failure of reduction and further damage to the articular surfaces. A case of medial subtalar dislocation is presented, which was managed as an ankle dislocation and manipulated inappropriately, leading to a failure of reduction. The clinical signs of ankle and subtalar dislocation, including points of differentiation between the two are discussed, and the correct method of reduction of subtalar dislocation is described.
Adult↗
Dislocation and fracture-dislocation of the hip.
Of 54 patients with posterior dislocations of the hip of type I and type II (Stewart and Milford 1954), 47 were followed for a mean period of 6.7 years (2 to 11). Of these, 23 had dislocation with minimal lesions of the acetabulum (type I) and 24 had an avulsed dorsocranial fragment (type II). All were reduced by closed methods within six hours. The subsequent treatment of type I dislocations was conservative. At the beginning of the period type II injuries were treated conservatively, but surgery was increasingly chosen for later cases. Type I dislocations had significantly better results (p < 0.05) than type II fracture-dislocations, regardless of the method of treatment. There were no essential differences between the results of surgical and conservative treatment in type II dislocations.
Adolescent↗
Dislocation of the knee with lateral dislocation of the patella. A report of four cases.
In a group of 25 patients with traumatic dislocation of the knee, four, all of whom had similar ligament and medial soft-tissue injuries, also had associated lateral patellar dislocation. In all four reconstruction was delayed because of their other serious injuries. Having encountered the combination of knee dislocation and lateral patellar dislocation in 16% of our patients, we believe that it may be less rare than is commonly believed. We think that it is important to maintain a high index of suspicion of possible patellar dislocation when medial structures have been severely damaged. Early recognition and immobilisation in extension can prevent fixed lateral dislocation of the patella.
Adolescent↗
[Spasm of the adductor muscles, pre-dislocation and dislocations of the hip joints in children and adolescents with cerebral palsy. Clinical observations on aetiology, pathogenesis, therapy and rehabilitation. Part I: The effect of open myotenotomy of the gracilis muscle and of the long and short adductor muscles in connection with total extrapelvine resection of the obturator nerve, on the hip joints and static function (author's transl)].
Spasm and contraction of the adductor muscles involve, on the one hand, danger in respect of the development of a dislocation of the hip, and are a serious impediment to a walking ability on the other. Hence, surgery is often necessary. The article reports on the results of consequent weakening of the adductor muscles as a result of open myotenotomy in association with complete extrapelvine resection of the obturator nerve. 27 patients were subjected to surgery--in most cases bilaterally--at an age between 2 years and 5 months and 18 years, with a follow-up period of up to 15 years. The study does not include patients with spastic dislocation of the hip in whom this method was applied on the non-dislocated side and on the dislocated side in combination with iliopsoas tenotomy. This method makes it possible to achieve regression of existing defective positions of the hip joints. In a few cases, the valgus position of the neck of the femur was corrected to some extent. In two patients it was not possible to prevent the progress of a developing dislocation of the hip. These results show that, whereas the adductor muscles represent an essential factor for the occurrence of a spastic dislocation of the hip, other forces are most probably also involved. In the majority of cases, results were favourable in respect of the static function, although in some cases the success became evident after several years only, especially in mentally retarded patients and in apathetic individuals. Important for therapeutic success is the follow-up. The principles of its therapy are thoroughly discussed. Surgery is indicated only in special cases. Indications must be observed very strictly, since the risk of excessive weakening of the adductor muscles should not be underestimated.
Adolescent↗
Dislocation after hemiarthroplasty of the hip: a comparison of the dislocation rate after posterior and lateral approaches to the hip.
We compared the 3-month dislocation rate for hip hemiarthroplasties inserted via the posterior and direct lateral routes. In all, 2906 primary hemiarthroplasties, performed between 1986 and 1992 in four hospitals on a training hospital rotation, were analysed. The posterior approach was used in 1656 (57%) and the lateral in 1250 (43%). The groups were otherwise comparable. The overall dislocation rate for the posterior approach was 9.0% (149/1656), whereas that for the direct lateral approach was 3.3% (41/2150). The difference is statistically highly significant. In addition, we analysed the dislocation rate for each approach in the three broad groups of surgical trainee. For senior registrars, there was no statistical difference in the dislocation rate. However, for registrars and senior house officers, there were statistically highly significant differences in the dislocation rate for posterior and direct lateral approaches (8.4% vs 3.3% and 14.2% vs 3.6%, respectively). We conclude that, because of the high mortality associated with dislocation of a hemiarthroplasty, the posterior approach for this operation should now be abandoned, especially by surgical trainees early in their careers.
Aged↗
Streptococcal antigen-induced dislocation and dysplasia of the hip in newborn rats. Radiologic and histologic evaluation of a model of congenital dislocation of the hip.
Dislocation of the hip developed in 62% of newborn rats with streptococcal antigen-induced synovitis. Age at the time of the induction of synovitis is critical since dislocation is not observed in older rats. Synovitis with distention and laxity of the joint capsule is most likely responsible for the hip dislocation. Although congenital dislocation of the hip in children is not mediated by an inflammatory process, the current model of dislocation of the hip in rats is similar in being critically age-dependent, and associated with ligamentous laxity. Our model may be helpful in studying this important clinical entity.
Age Factors↗
Concurrent perilunate dislocation in patients with elbow dislocation: case reports.
In three patients with elbow dislocations after falls on an outstretched upper extremity, concurrent perilunate dislocation was found. Closed reduction of the elbow dislocation achieved excellent functional results. Open reduction and internal fixation for perilunate dislocation provided anatomic reduction and satisfactory functional recovery in two patients. In the third, a delay in diagnosis of a perilunate dislocation necessitated proximal row carpectomy at 6 weeks.
Adult↗