Search PubMed⌕ Search

SEARCH · Search PubMed

Results for “DISLOCATIONS”

Search indexed PubMed citations on genomics, clinical trials, systematic reviews and public health. Explore titles, authors and supplied subject terms, then open the PubMed record.

Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.

At least 1,009 records · Page 56Linked to original sources
PubMed1989

A biochemical evaluation of the restraints to posterior shoulder dislocation.

The biomechanics of posterior dislocation of the shoulder was evaluated using nine cadaver shoulders. Each was arthroscoped, roentgenograms were obtained, and then each was dislocated in a testing device. Force displacement data was obtained during testing, and posttesting roentgenograms, arthroscopic evaluation, and subsequent open dissections were performed to evaluate the pathology created. Although instability was created in all cases with displacement of the humerus to the diameter of the humeral head, force displacement of the humerus to the diameter of the humeral head, force displacement curves did not show an inflection point, implying a continuum between subluxation and dislocation. All shoulders had posterior Bankart lesions or posterior capsular lesions, or both. Anterior pathology was not seen. Posterior instability is most likely a continuum between subluxation dislocation with progressive injury to the posterior capsule and attachments such as the labrum as the principal restraint to posterior displacement.

Aged↗
PubMed1989

Arthroscopic versus nonoperative treatment of acute shoulder dislocations in young athletes.

We evaluated the natural history of anterior shoulder dislocations in a young athletic population (cadets at the United States Military Academy) and compared conventional means of nonoperative treatment with early arthroscopic treatment (staple capsulorraphy or anterior glenoid abrasion). The rate of recurrent instability after a shoulder dislocation was 92% (35 of 38) in cadets treated nonoperatively. Strict adherence to a supervised nonoperative treatment program had no effect on the recurrence rate. All recurrences of instability occurred within 14 months of the initial injury. In comparison, arthroscopic treatment of acute shoulder dislocations has been successful thus far in 78% (7 of 9) of cadets followed for at least 14 months. With the high rate of recurrence of shoulder instability in young athletes, we believe that arthroscopic surgical intervention after the initial shoulder dislocation can dramatically lower the recurrence rate and should be considered as a treatment option in young athletes.

Adolescent↗
PubMed1992

Recurrent atraumatic superior dislocation of the patella: case report and review of the literature.

Recurrent atraumatic superior dislocation of the patella with spontaneous reduction prevented by interlocking osteophytes has not been previously reported. Eight previous case reports were noted in the literature with single episodes of interlocking by osteophytes in a superior dislocation, none with recurrence, and all treated by closed reduction. The presentation of a 60-year-old woman with recurrent atraumatic superior dislocation of the patella on three separate occasions required closed reduction due to interlocking patella and trochlear osteophytes that were preventing spontaneous reduction. Arthroscopic debridement of these osteophytes resulted in no functional limitation or recurrence of dislocation at 28-month follow-up. This case demonstrates successful arthroscopic treatment of this previously unreported condition. In light of the increasingly active aging population with coexistent patellofemoral joint osteoarthritis, this presentation may become more frequent.

Arthroscopy↗
PubMed1995

Arthroscopic Bankart suture repair for recurrent traumatic unidirectional anterior shoulder dislocations.

We report our experience with arthroscopic repair of the Bankart lesion following traumatic unidirectional anterior shoulder dislocation. Thirty consecutive patients (7 women, 23 men; average age, 26.5 years) were followed for an average of 38 months (minimum 2-year follow-up) after arthroscopic Bankart suture repair for recurrent shoulder dislocation. The study included patients who had pure shoulder dislocations (excluding those with instability secondary to subluxation, multidirectional instability, or an atraumatic origin), had experienced an initial frank shoulder dislocation (documented radiographically or requiring the assistance of medical personnel for reduction), and had a Bankart lesion, visualized arthroscopically. Clinical evaluation using the Rowe functional grading system showed 11 patients rated as excellent, 8 as good, 3 as fair, and 8 as poor. Six of 8 patients were rated as poor because they frankly redislocated following their arthroscopic shoulder stabilization. Our study shows a 27% failure rate in this group. Critical reevaluation of the transglenoid arthroscopic Bankart procedure is mandatory to identify the appropriate patient population for this procedure.

Adult↗
PubMed1995

Arthroscopic bioabsorbable tack stabilization of initial anterior shoulder dislocations: a preliminary report.

Twenty-six consecutive cadet athletes sustained an acute, initial anterior shoulder dislocation. All dislocations required a manual reduction for initial treatment. Arthroscopy was performed within 10 days in all patients. The Beach chair position and interscalene anesthesia were used in each case. At arthroscopy, 25 patients had an avulsion of the anterior-inferior capsulolabral complex (Bankart lesion) from the glenoid rim. One patient had a lateral detachment of the inferior glenohumeral ligament from the humeral neck. Twenty-three patients had a Hill-Sachs lesion and 3 SLAP tears were noted. All Bankart lesions were repaired with a cannulated bioabsorbable fixation device. Nineteen patients, over 1 year postoperative, are the subject of this preliminary report. The average age was 19.5 years (range, 17 to 23 years). Follow-up averaged 19 months (range, 12 to 24 months). The average loss of external rotation was 3 degrees. There have been no recurrent dislocations and 1 patient has had a single episode of resubluxation. Using the Rowe point score, 16 patients were rated excellent, 2 good, and 1 fair. All of the athletes in this study have returned to preinjury performance status. Acute stabilization of initial anterior shoulder dislocations appears to be an effective treatment option in young athletes known to have high recurrence rates with nonoperative treatment. This particular technique has been safe with little morbidity.

Absorption↗
PubMed1993

Trochanteric osteotomy for recurrent dislocation of total hip arthroplasty.

Twenty-one patients with recurrent dislocation of total hip arthroplasty were treated by trochanteric osteotomy and distal advancement of the greater trochanter. There were no malpositioned prostheses. In 17 patients no further dislocations occurred. One patient, who had the hip arthroplasty in a paretic leg, continued to dislocate after the osteotomy and the prosthetic components were removed 5 months after surgery. The remaining three patients became stable after further surgery: cup augmentation in one and reattachment of the greater trochanter in two. Advancement of the greater trochanter is recommended in patients with recurrent dislocation of their total hip arthroplasty when no apparent malposition of the prosthetic components can be identified.

Aged↗
PubMed1996

[Irreductible congenital dislocation of the hip at birth].

BACKGROUND: Rare congenital dislocation of hip (CDH) (0.03 for 1,000 births) are irreducible at birth; they are named teratologic in literature. However some of them are isolated without any pathological context, having a postural origin or due to an underlying disease. PATIENTS: Seventeen dislocated hips, irreducible at birth, were seen in 12 infants and included in this study. Clinical examination of these neonates was normal with the exception of signs of CDH. Postural abnormalities such as pes calcaneus, genu recurvatum, torticolis were seen in ten infants but none of the 12 had any manifestation of neurologic, dystrophic or malformative disease. However, manifestations of a disease able to explain the CDH such as congenital myopathy, cutis laxa, cortical atrophy, Klinefelter syndrome, appeared within the following months in four infants. Treatment of these CDH started in every case by an attempt of reduction by continuous traction and was efficient in eight cases. A redislocation occurred for four hips and this treatment was uneffective for five hips. Finally seven hips had to be treated by open reduction. Reduction was maintained for nine hips after closed treatment (one of them after a redislocation and a second time of orthopaedic treatment). One hip is still dislocated after failure of closed treatment. Stabilisation of the reduction was necessary by pelvic and/or femoral osteotomy in majority of cases. CONCLUSIONS: Morphological modifications of hip established from X-rays and during the surgical procedure are rather related to the age of the dislocation making inappropriate the term "teratologic". The irreducible and isolated CDH can be postural in origin but as well due to a disease whom manifestations will appear lately. Their treatment, orthopaedic or surgical, is difficult and the results often disappointing.

Female↗
PubMed2004

In-the-bag intraocular lens dislocation.

PURPOSE: To describe the presenting characteristics and management alternatives of posterior chamber intraocular lens (PC-IOL) dislocation secondary to dehiscence of the zonules supporting the capsular bag. DESIGN: Observational case series. METHODS: Multicenter retrospective analysis of the surgical treatment and predisposing factors associated with 25 eyes of 22 patients with dislocation of the PC-IOL encased within the capsular bag secondary to dehiscence of the zonules supporting the capsular bag. RESULTS: The dislocated in-the-bag PC-IOL was replaced with an anterior chamber intraocular lens in 60% or repositioned/exchanged and scleral fixated in 40% of eyes. Associated conditions included pseudoexfoliation syndrome 44%, uveitis 16%, and trauma 16%. There was no identifiable cause in 24% of eyes. CONCLUSIONS: In-the-bag PC-IOL dislocations are an unusual, sometimes bilateral, late complication of cataract surgery that can be managed by exchange with an anterior chamber intraocular lens or by PC-IOL repositioning or replacement with scleral fixation. The most common associated condition was pseudoexfoliation.

Aged↗
PubMed2004

Biomechanical function of surgical procedures for acromioclavicular joint dislocations.

PURPOSE: Surgical procedures for treatment of acromioclavicular (AC) joint dislocation replace the coracoclavicular (CC) ligaments to minimize motion, allow scarring, and increase the subsequent stability of the joint. The purpose of this study was to evaluate the biomechanical function of the surgically repaired or reconstructed (CC Sling, Rockwood Screw [DePuy Orthopaedics, Warsaw, IN], and Coracoacromial [CA] Ligament Transfer Construct) AC joint after AC joint dislocation. TYPE OF STUDY: A cadaver study using a convenience sample. METHODS: Twelve cadaveric shoulders were tested using a robotic/UFS testing system. Three external loading conditions (anterior, posterior, or superior load of 70 N) were applied to intact and surgically repaired or reconstructed AC joint. The resulting kinematics of the AC joint and in situ forces in the CC ligaments or surgical constructs was determined. RESULTS: For the CC Sling, anterior and posterior translation significantly increased by 110% and 330% in response to an anterior and posterior load, respectively. However, the posterior translation for the Rockwood Screw significantly decreased by 60%. Anterior, posterior, and superior translation for the CA Ligament Transfer Construct significantly increased by 110%, 360%, and 100%, respectively. The coupled translations also significantly increased for the CC Sling and CA Ligament Transfer Construct in response to all loading conditions. In contrast, the coupled translations for the Rockwood Screw tended to decrease. Furthermore, the in situ forces increased significantly for all 3 surgical constructs compared with the intact CC Ligaments in response to an anterior and posterior load. CONCLUSIONS: At time zero, increases in the primary and coupled motion for the CC Sling and CA Ligament Transfer Construct could comprise the initial healing period prescribed for AC joint dislocation. Our findings also suggest that the Rockwood Screw provides a highly rigid fixation and may explain the complications frequently seen in clinical practice. CLINICAL RELEVANCE: Current surgical procedures do not have the appropriate stiffness to restore the stability of the intact joint before healing. Therefore, our results may lead to the design and development of new repairs, reconstructions, and rehabilitation protocols for AC joint dislocation.

Acromioclavicular Joint↗
PubMed2005

Osteochondral injury to the mid-lateral weight-bearing portion of the lateral femoral condyle associated with patella dislocation.

We report on a series of 7 patients who presented with patella dislocation and were found to have osteochondral fracture (OCF) of the weight-bearing portion of the lateral femoral condyle either through preoperative studies or by identification of the lesion during arthroscopy. Treatments included open reduction and internal fixation, debridement, and microfracture of the lateral femoral condyle. Although not as common as osteochondral injuries to the medial facet of the patella and the anterior lateral portion of the lateral femoral condyle, osteochondral injury to the weight-bearing portion of the mid-lateral femoral condyle does occur with patella dislocation and was recognized in these 7 patients. The surgeon who treats known patellofemoral dislocations should be aware of this uncommon lesion to ensure detection and appropriate treatment. Also, in the case of uncertainty about the mechanism of injury, recognition of this lesion should heighten suspicion of patellofemoral dislocation.

Adolescent↗
PubMed2005

Arthroscopic patellar "bankart" repair after acute dislocation.

We present a case of acute patellar dislocation in a skeletally immature patient treated with arthroscopic medial patellofemoral ligamentous complex repair using suture anchors with a horizontal mattress suture technique. Patellar dislocation is a common problem in the skeletally immature. Treatment is controversial for first-time dislocators because of the high rate of recurrent instability and functional disability in these patients. Surgical repair of the medial restraints may decrease recurrent instability, although anterior knee pain and crepitus is a common finding after open surgical techniques. Arthroscopic medial retinacular imbrication has been described for patients with persistent instability with good short-term results. Acute dislocations may cause avulsion of the medial patellofemoral ligamentous complex from the patella; this is amenable to direct primary repair to prevent recurrent instability and avoid the morbidity of open surgery. This technique recreates normal anatomy and function with minimally invasive surgery.

Adolescent↗
PubMed2006

Hybrid medial patellofemoral ligament reconstruction using the semitendinous tendon for recurrent patellar dislocation: minimum 3 years' follow-up.

PURPOSE: The purpose of this study was to evaluate the results of a new hybrid medial patellofemoral ligament (MPFL) reconstruction for recurrent patellar dislocation. METHODS: Hybrid MPFL reconstruction by use of the semitendinous tendon was performed in 12 knees with recurrent patellar dislocation. The results were evaluated at a minimum follow-up of 3 years (mean, 4.2 years). RESULTS: According to the grading system of Insall et al., the results were classified as excellent in 8 knees (66%), good in 2 (17%), and fair in 2 (17%), with none being classified as poor. The mean Kujala score was 56.3 points (range, 29 to 82) preoperatively and 96.0 points (range, 84 to 100) at follow-up. There were no patients with recurrent dislocation and subluxation. No knees had a positive apprehension sign, and there were no postoperative complications. CONCLUSIONS: At a midterm follow-up, hybrid MPFL reconstruction by use of the semitendinous tendon for recurrent patellar dislocation should be considered as an effective operation for cases without severe predisposing factors. LEVEL OF EVIDENCE: Level IV, therapeutic case series, no or historical control group.

Adolescent↗
PubMed2004

Simple dislocations of the elbow: evaluation and treatment.

Simple dislocations of the elbow or dislocations occurring without an associated fracture are common injuries. Evaluation of these injuries must include an assessment of the entire involved upper extremity and a complete neurovascular examination. Principles of management include a prompt, controlled reduction, a determination of postreduction stability, and an immediate rehabilitation protocol that considers the stability of the joint following reduction. For those joints that are stable throughout the arc of motion, an unrestricted range of motion protocol can be started. When instability is present after reduction, the degree of instability determines the need for dynamic bracing, ligament repair or reconstruction, or the need for a hinged external fixator. The long-term results of these injuries are generally good, with nonoperative treatment producing equivalent or better results than operative treatment. Residual flexion contracture is the most common complication and can be diminished with the use of early range of motion. Other common complications include residual pain and heterotopic ossification, whereas recurrent instability occurs infrequently. Chronic dislocations of the elbow occur uncommonly in North America and Western Europe, but when they occur, reason-able results can be achieved with open reduction of the joint and the use of a hinged external fixator within I year following the dislocation.

Algorithms↗
PubMed2005

Distal radioulnar joint dislocation in association with elbow injuries.

Traumatic distal radioulnar joint (DRUJ) dislocation with or without an associated fracture is a rare injury. When coupled with a radial head fracture this is commonly known as the Essex-Lopresti injury. We report two cases of elbow dislocation with ipsilateral radial neck fractures and associated true DRUJ dislocations. This has not been previously described in the literature. In elbow injuries with wrist involvement, symptoms in the latter may be subtle. Due to inadequate examination of the affected joint, poor initial radiographic views, and general rarity of this injury, distal radioulnar joint dislocations are frequently missed. We hope our experience illustrates the need to examine thoroughly the joint above and below the injured site, and to be aware of the potential for DRUJ instability in all patients with elbow injuries.

Adult↗
PubMed2005

Painless reduction of anterior shoulder dislocation by Kocher's method.

Kocher described his method of reduction of anterior shoulder dislocation in German, which was misinterpreted. A new element of traction was added which causes considerable pain. We present our experience with the original method in reducing 12 anterior shoulder dislocations without using sedation or anaesthesia. The original method is gentle, painless and requires neither sedation nor anaesthesia. Patient reassurance and confidence is essential. The patient initiates the movements, the surgeon just guiding him through the manoeuvre. It was successful in 10 dislocations. In two dislocations, the humeral head had to be gently guided laterally and superiorly into the glenoid using an index finger in the axilla. The method is easily reproducible after a demonstration. Patients can go home within a few minutes of the procedure.

Adolescent↗
PubMed2006

Functional outcome following treatment of transolecranon fracture-dislocation of the elbow.

Elbow fracture-dislocations are considered as difficult injuries to treat. Anterior olecranon fracture-dislocation consist an uncommon pattern which is likely to be under-diagnosed. Eight patients identified as anterior fracture-dislocation of the elbow were retrospectively reviewed. There were seven men and one woman with an average age of 35 years (range, 22-58 years). Proximal ulna fracture was comminuted in seven and simple oblique in one patient. Associated fractures were of coronoid in four and radial head in two. Reconstruction plate was used in seven patients and tension band wiring in just one. Nevertheless, tension wiring failed and was successfully revised to plate fixation combined with bone graft. Patients were followed for an average of 37.4 months (range, 10-50 months). The end results were two excellent, five good and one fair, based on Broberg and Morrey scale. An average score of 89 points was obtained using American Shoulder and Elbow Surgeons elbow scoring system. Treatment of anterior olecranon fracture dislocation is mostly satisfactory if contour and dimension of greater sigmoid notch is accurately restored.

Adult↗
PubMed2006

External fixation of open subtalar dislocation.

Subtalar dislocation is a rare and severe injury, caused by high-energy trauma such as fall from a height or traffic accident. Infection and avascular necrosis are not rare sequelae of open subtalar dislocation, and the outcome may be poor. External fixation allows complete wound care, and moderate distraction of the ankle joint should unload the talus, which may reduce the risk of avascular necrosis. We treated 11 open subtalar dislocations by distractional external fixation. The series involved nine males and two females, of average age 30.39 years. In nine cases the injury was caused by falling from a height, and in two by a traffic accident. The follow-up period ranged from 18 to 28 months. The final functional results were good, with no infection and one case of avascular necrosis of the talus. Pain after a longer period of walking or standing was experienced by eight patients, and movement of the subtalar joint was limited in nine patients. Immediate distractional external fixation of open subtalar dislocation may prevent infection and avascular necrosis of the talus.

Adult↗
PubMed2005

Posttraumatic recurrent dislocation of extensor pollicis brevis tendon over the metacarpophalangeal joint.

There have been numerous reports on dislocation of the extensor tendons in the fingers. We describe an acquired dislocation of the extensor tendons of the thumb. We report a case with posttraumatic dislocation of extensor pollicis brevis (EPB) over the metacarpophalangeal (MCP) joint of the thumb. Ulnar dislocation of the EPB took place during a firm grip on a badminton racket and the patient could not extend the thumb from this position. After reconstruction of the extensor aponeurosis to centralize the EPB tendon the patient recovered normal function of thumb extensors.

Adolescent↗