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Modified Bankart procedure for recurrent anterior shoulder dislocation.

BACKGROUND AND PURPOSE: Recurrent anterior shoulder dislocation is a serious condition, for which the Bankart procedure is a standard treatment. Having made three modifications to the original procedure, we examined the efficacy of this modified Bankart procedure in the treatment of patients with recurrent anterior shoulder dislocation. PATIENTS AND METHODS: The medical records of 21 patients who received a modified Bankart procedure for recurrent anterior shoulder dislocation during the period from 1989 through 1998 were retrospectively analyzed. The average age at initial dislocation was 22 +/- 5 years. The average postoperative follow-up period was 41 +/- 16 months. Three of the patients complained of mild shoulder pain before their operation. RESULTS: The postoperative loss of external rotation and abduction compared with the nonoperated side was 9 +/- 4 degrees and 5 +/- 4 degrees, respectively. There were no limitations in daily activities during follow-up. No patient had shoulder pain after surgery. Redislocation occurred in one patient during the follow-up period. Patient satisfaction was rated as excellent by 20 (96%) patients and poor by one. CONCLUSION: This modified Bankart procedure is a technically easy operation with a low complication rate, a high rate of patient satisfaction, and a low redislocation rate. It is a procedure of choice for the management of traumatic recurrent anterior shoulder dislocation.

Adolescent↗

Dislocations of the sternoclavicular joint.

The effects of the anterior and posterior sternoclavicular joint (SCJ) soft tissue structures on joint dislocation strength by sequential sectioning the ligaments and capsule of twenty-eight SCJs were evaluated. The medial clavicle of each specimen was initially loaded in the anterior and posterior directions to provide control values for joint laxity. The anterior or posterior ligaments and capsular structures of the SCJs were then selectively cut and the specimens retested for laxity and then loaded to failure simulating either anterior or posterior dislocation. Testing of intact specimens showed that the posterior ligaments were stiffer than other structures in that it was significantly more difficult to posteriorly displace the SCJ than in any other direction and that the capsule was the important anterior structure affecting joint laxity. Load-to-failure testing showed that it required 50% more force to create a failure by posterior dislocation than by anterior dislocation. The results of this study explain the clinical rarity of posterior sternoclavicular joint dislocations.

Aged↗

Pure dislocation of the ankle: three case reports and literature review.

Ankle dislocation without fracture is an extremely rare injury. The results of treatment are reported for three patients who had a posteromedial open dislocation, a lateral open dislocation, and a posterior closed dislocation of the ankle. Management consisted of immediate reduction, debridement and capsular suture in the open dislocations, and immobilization with a short leg cast in all patients. At followup no patient had tibiotalar joint instability; a 10 degrees to 15 degrees loss in the range of dorsiflexion was observed in two patients. One patient reported paresthesia in the area of the superficial peroneal nerve. The three patients achieved good long-term functional and radiographic results. Predisposing factors that contribute to the pathogenesis of this lesion are internal malleolus hypoplasia, ligamentous laxity, weakness of the peroneal muscles, and previous ankle sprains. Among the three patients, medial malleolus hypoplasia was present in one patient and previous sprains were seen in the clinical history of another patient.

Adult↗

Femorotibial rotation and the Q-angle related to the dislocating patella.

PURPOSE: To compare the femorotibial rotation, the patellar translation, the hip-knee-ankle angle and the Q-angle in patients with a dislocation of the patella with those of healthy volunteers. Further, the clinically measured Q-angle was compared to that measured by radiography. MATERIAL AND METHODS: A system for measurement of patellar variables was previously developed and applied to 80 healthy volunteers. In the present study, 28 patients (20 women, 8 men) with dislocation of the patella were examined bilaterally. Fourteen patients had habitual dislocations (20 affected knees) and 14 patients traumatic dislocations (17 affected knees). In 20 patients the clinical Q-angle was measured bilaterally by an orthopaedic surgeon and in 9 of these patients also by a second independent orthopaedic surgeon. RESULTS: The most striking finding was that dislocating knees in both groups showed a smaller Q-angle than the healthy knees. Further, the habitual group showed greater relative rotation between the tibia and the femur and an increased patellar translation compared to the traumatic group and to the healthy volunteers. There was a poor correlation between clinical and radiographic measurements of the Q-angle and no correlation was found between two independent clinical measurements. CONCLUSION: Surgical operations aiming at decreasing the Q-angle should be challenged.

Adolescent↗

[Does simple posterior dislocation of the elbow necessitate strict immobilization?].

OBJECTIVE: To research for the ideal treatment of isolated posterior dislocation with the elbow after reduction. METHODS: 36 patients of isolated posterior dislocation of the elbow after closed reduction (male 26, female 10; left 14, right 22; dominant extremity 21, undominant extremity 15; average age 22) were examined by varus and valgus stress test and push-draw test. Satisfactory stability from 30 degrees to 130 degrees flexion of the elbow was found in all patients. For the 30 patients below 35 years old, long-arm posterior splint was applied to immobilize the elbow joint at 90 degrees flexion and pronation for one week. For 6 patients over 35 years old, we only immobilized the elbow joint for 3 to 5 days with a neck-wrist sling. Prompt active motion begin after the swelling and pain reduced slightly, but the last 30 extension was not allowed for the first 1 to 2 weeks. Forceful passive motion and stretching of the elbow joint were avoided in all patients. RESULTS: The average follow-up time was 9 months (3 - 15 months). Range of motion and muscle power were regained within 3 - 4 months. 32 patients rehabilitated completely and 4 of the 6 patients decreased extension for 5 degrees - 10 degrees. No unstable symptoms and signs or recurrent dislocation were found. No ectopic calcification or post-traumatic arthritic changes were found on X-ray follow-up. CONCLUSIONS: The ulna-humeral joint is one of the most highly constrained joints in the body with intrinsic stability. Bony structure is stable enough to allow for capsular and ligamental structure healing, even during active motion. For isolated posterior dislocation of the elbow joint, short-term immobilization and early functional exercise are desirable. Elbow instability and recurrent dislocation are rare and do not necessitate long-term strict immobilization.

Adolescent↗

Ulnopalmar dislocation of the fifth carpometacarpal joint. A rare injury.

Volar dislocation of the carpometacarpal joint of the little finger is an uncommon injury. It is subdivided in ulnopalmar and radiopalmar dislocations. The injury can easily be missed on standard x-rays. Closed reduction and K-wire fixation has commonly been used in the treatment, although closed reduction and casting has been reported. Only 10 cases of an ulnopalmar dislocation were published previously. We report a case of a simultaneous dislocation of the 4th metacarpophalangeal joint and an ulnopalmar dislocation of the 5th carpometacarpal joint. The combination of these injuries has not been reported yet. We review the available literature and discuss the methods of treatment.

Bone Wires↗

Hip dislocation in patients with spinal muscular atrophy.

The propensity for hip dislocation in patients with spinal muscular atrophy (SMA) is well documented, but the appropriate treatment and even the long-term outcome of these hips in this patient population have not been well defined. The purpose of this study was to determine by long-term follow-up the natural history of dislocated hips in a cohort of SMA patients from a single institution. Pain and functional difficulties (positioning, skin and perineal care) were assessed and radiographs were reviewed in a total of 41 patients with a mean of 18 years of follow-up. Seventeen of 82 hips (21%) were dislocated in 14 patients and 20 hips were subluxed. Only two patients had any hip pain at follow-up, one had difficulty with seating, and no patients had difficulty with perineal care. Given the small number of patients with symptoms with dislocated hips, observation rather than surgical intervention seems warranted in SMA patients with hip dislocation.

Adolescent↗

[Chronic anterior shoulder dislocation treated by open reduction sparing the humeral head].

PURPOSE OF THE STUDY: Treatment options for unreduced anterior dislocation of the shoulder have varied from nonoperative treatment to different surgical options. Little has been written in the literature on the management of unreduced anterior dislocation or on the results of the different procedures. We report our experience and present the outcome after an open reduction joint-saving procedure used in five patients. MATERIAL AND METHODS: Five patients, mean age 39 years (range 17-69 years) underwent the joint-saving procedure for chronic anterior shoulder dislocation. Pain was predominant for two patients and functional impairment for three. The shoulder had been anteriorly dislocated for six weeks to up to 36 months (average 14 months). Open reduction was performed in all cases with reinsertion of the capsulo-labral complex onto the anterior glenoid rim. A bone graft was used in one patient to reconstruct an anterior glenoid bone defect involving more than half of the joint surface. No graft was used to fill the humeral head defect. RESULTS: At an average follow-up of 25 months (range 12-36 months), outcome was excellent in one patient, good in three, and poor in one (Rowe and Zarins score). Postoperatively, the overall score averaged 75 points (range 40-90). Pain score improved from 12 to 27 points. Three shoulders were totally pain free and two had mild to moderate pain. Motion improved from 12 to 28 points. Anterior active elevation averaged 126 degrees, external active rotation 17 degrees, and internal active rotation to the level of the first lumbar vertebral body. Functional score improved from 9 to 20 points. All the patients were able to perform daily living activities. The radiographic evaluation showed anterior subluxation of one shoulder one year after surgery. Osteoarthritis was also noted in one patient. No peroperative or postoperative complication was seen. DISCUSSION: Unreduced anterior shoulder dislocation should be treated with an open reduction and reconstruction of the specific lesions, unless the patient is old or debilitated. This operation can however be difficult and requires extensive soft tissue release, and occasionally use of a bone graft to reconstruct the anterior defect of the glenoid. The long-term results remain modest. When the humeral head cannot be saved because of extensive osteochondral lesions, shoulder arthroplasty must be the treatment of choice.

Accidental Falls↗

Complications in primary total hip arthroplasty: avoidance and management of dislocations.

Dislocation in primary total hip arthroplasty is common and problematic and is attributable to several factors, including previous hip surgery, neuromuscular disorders, cerebral dysfunction, psychosis, alcoholism, and female gender. Factors under the control of the surgeon include component orientation and restoration of soft-tissue tension. Prosthetic factors lowering the risk of dislocation include increasing the size of the prosthetic femoral head, keeping femoral neck circumference to a minimum, and optimizing the geometry of the acetabular component. Postoperatively, patients should be expected to comply with standard hip precautions. Treatment is with immediate closed reduction. Multiple dislocations can be treated by advancing the trochanter in the presence of inadequate soft-tissue tension, revision arthroplasty in the presence of malpositioned components, or the use of a constrained cup when intraoperative instability persists. Because the risk of redislocation is much higher than that for first-time dislocation, prevention is critical. An enhanced repair technique can be used to reconstruct the posterior soft-tissue sleeve during the posterior surgical approach. This technique has been successful in lowering the dislocation rate from 4% to 0% in a series of 395 consecutive patients.

Arthroplasty, Replacement, Hip↗

[Simultaneous asymmetric bilateral traumatic hip dislocation: a case report].

Asymmetric bilateral (one side anteriorly, the other posteriorly dislocated) traumatic hip dislocations are very rare. We present a 21-year-old male patient who had simultaneous anterior and posterior traumatic hip dislocations due to a car crash. He also suffered from a tarsometatarsal (Lisfranc's) fracture-dislocation. The patient underwent conservative treatment and was followed-up for 44 months. Final evaluations with Thompson and Epstein radiologic and clinical criteria showed an excellent result. To our knowledge, this is the first report of a case with asymmetric bilateral traumatic hip dislocations associated with Lisfranc's injury.

Accidents, Traffic↗

Posterior dislocation after posterior stabilization TKA.

Posterior dislocation after primary total knee arthroplasty is a rare but serious complication. The authors described an 85-year-old man receiving bilateral total knee arthroplasty, which achieved good flexion arc immediately. Posterior dislocation occurred on right knee one month after operation, which was treated by close reduction and casting. Dislocation recurred in combination with infection. The mechanism of dislocation was checked under vision when performing open reduction and debridement. The tibial spine escaped from femoral cam in slight flexion and external rotation due to flexion laxity and biceps tethering. On the way to pursuit higher flexion angle, which is beyond the ordinary daily demand, excessive soft tissue release and bone resection seems to b e compromised. Flexion instability alsooccurs out of purpose, accompanied with increased risk of dislocation.

Aged↗

Anterior elbow dislocation with recurrent instability.

Anterior elbow dislocations are often associated with severe soft tissue lesions. The mechanism of dislocation is usually an anteriorly directed blow on the proximal ulna after a fall on a flexed elbow. Simple anterior elbow dislocations are traditionally treated by closed reduction followed by a short period of immobilisation. Fracture-dislocations are usually unstable after reduction and necessitate surgical management. The authors report a case of acute anterior dislocation with a concomitant radial head fracture that was complicated by recurrent instability. The literature is reviewed to discuss a treatment strategy.

Aged↗

[Old unreduced traumatic patellar dislocation].

The old unreduced traumatic patellar dislocation is very rare and the results of the treatment are not always satisfactory. We report a 11 year-old boy with an unreduced patellar dislocation and a healed ipsilateral femoral fracture. The dislocation was reduced by an operative procedure. A long leg cast was applied for 6 weeks then the knee exercises were started. One year after surgery, he still has satisfactory results. This case suggests that if the dislocation is not of long duration and degenerative changes are absent in the patella and the knee joint, open reduction may be helpful in the treatment of old unreduced traumatic patellar dislocations. .

Child↗

[Secondary dislocations in fractures of the distal end of the radius].

In the group of 31 patients treated by immobilization of the forearm we observed 71% of secondary dislocations and in group of 46 with the full-arm plaster 65% of secondary dislocation occurred. In the group of 20 patients with the full-arm plaster and the X-ray done between the 7th and 10th day after reduction to correct possible dislocation, followed always by the new, similar plaster cast, we observed 40% of secondary dislocations. Whenever the full-arm plaster was used Sudeck syndrome was observed very rarely. No direct relationship between kind of plaster used and the degree of shortening of the radius length after healing of the fracture was found. Comminuted fractures and osteoporosis are in favour for secondary dislocations.

Adolescent↗

Complete knee dislocation without posterior cruciate ligament disruption. A report of four cases and review of the literature.

Complete knee dislocation usually causes disruption of both the anterior and posterior cruciate ligaments. Four cases of complete knee dislocation without posterior cruciate ligament (PCL) disruption are reported. All cases involved either anterior or anteromedial dislocation with anterior cruciate ligament disruption and collateral ligament injury, but without posterior cruciate disruption. This is an uncommon finding in complete dislocation of the knee. The PCL may occasionally be spared significant injury in anterior type dislocations, however, thus favorably affecting treatment options.

Adolescent↗

Outcomes of acute arthroscopic repair and conservative treatment following first traumatic dislocation of the shoulder joint in young patients.

INTRODUCTION: The aim of this study was to compare patients who had arthroscopic repair done following the first traumatic dislocation with patients who were treated conservatively, in terms of stability and function. MATERIALS AND METHODS: Acute arthroscopic Bankart repair with absorbable tack was used in 30 shoulders after the first dislocation, while 32 patients who sustained traumatic anterior dislocation were treated conservatively at Gülhane Military Medical Academy, Department of Orthopaedics and Traumatology between March 1997 and April 2001. Preoperative and postoperative range of motion of the shoulder and Constant score of all patients were recorded. RESULTS: In the conservative group, the average pretreatment Constant score was 46.8 (range, 30 to 70) and the average post-treatment Constant score was 71.4 (range, 30 to 95). In the surgical group, the average preoperative Constant score in cases with Bankart lesion was 44.7 (range, 30 to 60) and the average postoperative Constant score was 92.3 (range, 65 to 100), (P = 0.0001). CONCLUSION: Our results support the use of acute arthroscopic repair of traumatic anterior shoulder dislocations with absorbable tacks. Arthroscopic repair is the treatment of choice in young and active patients who are having their first traumatic dislocation.

Adolescent↗

Vascular injuries in knee dislocations: the role of physical examination in determining the need for arteriography.

BACKGROUND: Popliteal artery injury is frequently associated with knee dislocation following blunt trauma, an injury that is being seen with increasing frequency. The primary purpose of the present study was to evaluate the use of physical examination to determine the need for arteriography in a large series of patients with knee dislocation. The secondary purpose was to evaluate the correlation between physical examination findings and clinically important vascular injury in the subgroup of patients who underwent arteriography. METHODS: One hundred and thirty consecutive patients (138 knees) who had sustained an acute multiligamentous knee injury were evaluated at our level-1 trauma center between August 1996 and May 2002 and were included in a prospective outcome study. Four patients (four knees) were lost to follow-up, leaving 126 patients (134 knees) available for inclusion in the study. The results of the physical examination of the vascular status of the extremities were used to determine the need for arteriography. The mean duration of follow-up was nineteen months (range, eight to forty-eight months). Physical examination findings, magnetic resonance imaging findings, and surgical findings were combined to determine the extent of ligamentous damage. RESULTS: Nine patients had flow-limiting popliteal artery damage, for an overall prevalence of 7%. Ten patients had abnormal findings on physical examination, with one patient having a false-positive result and nine having a true-positive result. The knee dislocations in the nine patients with popliteal artery damage were classified, according to the Wascher modification of the Schenck system, as KD-III (one knee), KD-IV (seven knees), and KD-V (one knee). CONCLUSIONS: Selective arteriography based on serial physical examinations is a safe and prudent policy following knee dislocation. There is a strong correlation between the results of physical examination and the need for arteriography. Increased vigilance may be justified in the case of a patient with a KD-IV dislocation, for whom serial examinations should continue for at least forty-eight hours.

Adolescent↗

Comparative study on treating complete dislocation of acromioclavicular joint with three different methods.

OBJECTIVE: To comparatively study complete dislocation of acromioclavicular joint treated with three different methods. METHODS: A total of 96 patients (81 males and 15 females, aged 16-59 years, mean=45 years) with complete dislocation of acromioclavicular joint were treated with Dewar's operation (Group A, n=32), internal fixation with Kirschner tension band wires (Group B, n=44), or internal fixation with Wolter plates (Group C, n=20), respectively, in this study. Eighty-five patients suffered from acute dislocations and eleven from chronic dislocations. RESULTS: The patients were followed up for 50 months on an average. According to Karlsson's standard, in Group A, 26 patients were assessed as good, 5 as fair and 1 as poor. In Group B, 20 patients were assessed as good, 13 as fair and 11 as poor. In Group C, 15 patients were assessed as good, 4 as fair and 1 as poor. The good and fair rates were significantly different between Group A and Group B, and between Group C and Group B, but no statistical difference was found between Group A and Group C. The operating time was (52.36+/-7.24) minutes, (67.43+/-8.11) minutes and (69.73+/-8.04) minutes in Groups A, B and C, respectively. And the hospitalizing fees were (2400+/-270) yuan, (2100+/-190) yuan and (8450+/-360) yuan in Groups A, B and C, respectively. CONCLUSIONS: Dewar's operation is a good and safe method with shorter operating time and lower hospitalizing fee for treating complete dislocation of acromioclavicular joint. The method is simple without the need of a second operation to remove the implants and with few complications.

Acromioclavicular Joint↗