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Results for “Forearm Injuries”

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PubMed2006

Forearm interosseous membrane trauma: MRI diagnostic criteria and injury patterns.

OBJECTIVE: Define criteria for interosseous membrane (IOM) injury diagnosis using MRI, and characterize patterns of IOM disruption following forearm trauma. Our hypothesis is that most IOM injuries occur along the ulnar insertion, and MRI should be obtained following forearm trauma to assess IOM competency. DESIGN: Sixteen cadaver forearms were subjected to longitudinal impact trauma. Prior to and following injury, MR images were examined by a board-certified musculoskeletal radiologist using pre-defined criteria for determining IOM integrity. Each specimen was dissected and the viability/pattern of injury examined. The MRI and dissection results were compared using a double-blinded methodology. RESULTS: Eight of the 16 specimens demonstrated IOM trauma. Seven specimens demonstrated complete IOM disruption from the ulnar insertion, and one revealed a mid-substance tear with intact origin and insertion. The dorsal oblique bundle was disrupted in four specimens. MRI analysis identified IOM injury in seven of the eight forearms. The injury location was correctly identified in six specimens when compared to dissection observations. MRI determination of IOM injury demonstrated a positive predictive value of 100%, a negative predictive value of 89%, a sensitivity of 87.5% and a specificity of 100%. CONCLUSION: Our findings demonstrate the accuracy of MRI in identifying IOM disruption, and its ability to localize specific injuries in a clinically relevant model of forearm trauma. The injury patterns demonstrated most lesions occurred along the IOM's ulnar insertion, and in half of the injured specimens there was concomitant dorsal oblique bundle disruption.

Aged↗
PubMed1992

Management of acute arterial trauma of the upper extremity.

During a 3.5 year period ending in September 1991, 50 patients with 51 arterial injuries of the upper extremity were operated on and followed up for more than 6 months. The majority of the cases suffered penetrating injuries, but in 18% blunt trauma led to thrombosis. The most frequently observed signs were haemorrhage, neurological disorders and a peripheral pulse deficit. The brachial artery was most frequently injured. Preoperative arteriography was performed in 20% and peroperative angiography in 16% of cases. Reconstructive surgery was performed in 88% and the brachial artery was ligated in a single patient who was in shock. An end to end anastomosis was possible in 55% and in 45% of cases an autogenous vein graft was used. A microsurgical technique was used in cases of forearm arterial injuries. In five patients with prolonged ischaemia, forearm fasciotomies were needed. Additional procedures such as venous, bone or nerve repair was also necessary. In four cases a temporary shunt was used. All patients were alive with late patency of 91% in the axillobrachial arterial segment. A single failure after repeated brachial artery reconstruction was observed following severe traumatic amputation with large tissue defects. Post-operative arteriography revealed a good anastomosis with patent grafts. Arterial reconstruction is clearly necessary in these injuries and we believe that an experienced vascular surgeon should be involved.

Adolescent↗
PubMed1997

Resurfacing a circumferentially degloved hand by using a full-thickness skin graft harvested from an avulsed skin flap.

Twelve patients with circumferentially degloved hands were treated with full-thickness skin grafts harvested from defatted avulsed flaps. All injuries were industrial accidents caused by various roller machines, not crush injuries. Of these 12 patients, 9 patients were degloved from the wrist level and 3 patients were degloved from the forearm. There were 11 distally based skin flaps and one flap was completely detached. Four patients were avulsed distally to the mid palm, with volar neurovascular bundles damaged at the "fenestrae" of the palm, which resulted in devascularization of the involved fingers. Among them, distal fingers were successfully revascularized by microsurgical techniques in 3 patients. The full-thickness skin grafts were prepared from the attached, avulsed skin flap to avoid junctional hypertrophic scarring. The graft was then secured to its anatomic position with multiple skin staples to improve skin graft take. Initial take of the graft averaged 93% (range, 85%-100%). Compared with conventional methods, this approach provides a higher rate of skin take and better cosmetic and functional results.

Adolescent↗
PubMed1979

Volkmann's contracture in children: aetiology and prevention.

A review was conducted of the records of fifty-five children who were admitted to the Hospital for Sick Children in Toronto between 1955 and 1975 with a diagnosis of Volkmann's contracture in fifty-eight limbs. Ten patients had been transferred to this hospital with established ischaemia after Bryant's traction for a fractured femur; all had a very poor outcome. Thirteen other cases of Volkmann's contracture affecting the superficial posterior compartment had been treated with a fixed Thomas' splint and a Bradford frame after fractures of the femoral shaft. Supracondylar fractures of the elbow resulting in Volkmann's contracture frequently had both an arterial injury and a compartment syndrome. Most of the fifty-five children reviewed here had not had early appropriate treatment. For the past twenty-one years the frequency of Volkmann's contracture has not declined in spite of many published reports on the compartment syndrome, and the hazards of supracondylar fractures and of Bryant's traction.

Adolescent↗
PubMed1995

Tire explosion injuries to the upper extremity.

We describe a protocol for treating tire explosion injuries to the hands on the basis of treatment of five cases over a 3-year period at Emory University Hospital. These high-energy wounds frequently require emergent initial debridement and stabilization, followed by complex soft tissue and skeletal reconstruction to maximize function. Data from all cases are summarized to show similarities among these injuries and differences in their response to treatment. We define the stages of treatment, emphasizing prevention, complete assessment, and early intervention, especially for limb-threatening conditions with fasciotomy, revascularization, thorough debridement, and rigid fixation. We also discuss the importance of aggressive therapy, close follow-up, and treatment of late complications. Functional reconstruction was achieved in each case, suggesting that our treatment protocol can be used successfully.

Adult↗
PubMed2001

Pre-expanded arterialised venous free flaps for burn contracture of the cervicofacial region.

Despite the fact that arterialised venous flaps provide thin good-quality tissue to repair defects of the face and neck, their clinical applications have been limited by an unstable postoperative course and variable flap necrosis. In an effort to resolve these problems, a tissue-expansion technique has been applied to the arterialised venous flap before flap transfer. Three pre-expanded arterialised venous free flaps have been used to treat post-burn scar contracture of the cervicofacial region. The donor site was confined to the forearm in each case. A rectangular expander was usually placed over the fascia of the flexor muscles in the proximal two-thirds of the forearm. The mean expansion period, volume and flap size were 44 days, 420 cm(3)and 147 cm(2), respectively. There were no complications caused by insertion and expansion. The cervicofacial region was successfully reconstructed, after excision of the post-burn contractures, with pre-expanded arterialised venous flaps, with no marginal necrosis or postoperative instability. Large thin arterialised venous flaps are well matched with the recipient defect in the cervicofacial area and the colour and texture match obtained with forearm tissue produced an aesthetically favourable result. Pre-expanded arterialised venous flaps are another new option for free flap reconstruction of the face and neck.

Adult↗
PubMed2005

Escalator injuries.

Explore the source record for details and available documents.

Accidental Falls↗
PubMed2006

Salvage of amputated upper extremities with temporary ectopic implantation followed by replantation at a second stage.

Salvage of the complex amputation of extremities, such as combined with devastating segmental injuries, extensive soft tissue defect, and multiple important organ injuries, continues to be a challenge for plastic surgeons. Temporary ectopic implantation of the amputated part to a healthy recipient site allows the patient to recover from critical combined injuries, radical debridements, and soft tissue repair. In this article, the authors report two cases of temporary ectopic implantation of complexly amputated forearms, followed by successful replantation to their anatomic positions at a second stage. The contralateral upper extremity is an acceptable recipient site for temporary ectopic implantation. In secondary replantation, a cross-arm flap can be designed to carry the vascular pedicle from the ectopic implantation recipient to improve blood supply to the replanted part when the second blood supply is established. The authors validated that temporary ectopic implantation of amputated parts provides an alternative procedure for the salvage of amputated extremities under special circumstances.

Adult↗
PubMedDate not supplied

Fatigue fracture of the ulna occurring in pitchers of fast-pitch softball.

We have reported three cases of fatigue fracture of the ulna in male pitchers of fast-pitch softball. To elucidate the etiology of injury, we first selected three healthy male and three healthy female pitchers from a well-trained college team and analyzed their forearm movement by high-speed cinematography. This showed slight flexion of the elbow joints during wind-up motion, dorsal flexion of the hand joints upon releasing the ball, and extreme pronation of the forearms during the follow-through. We then took 8 mm CT scanning sections of the forearms. Using these images, we investigated shapes and areas of cross-sections of the ulna and its cortical and cancellous bones from the elbow to the hand joints. Our results reveal that the shapes of the sections are significantly different from circles at around the center of the ulna, and the cross-sectional areas are smaller in the middle one-third of the ulna than in other parts. These observations imply that fatigue fractures of the ulna in pitchers of fast-pitch softball must be torsionally induced, tending to occur at the middle one-third of the bone.

Adolescent↗
PubMed2002

[Repair of soft tissue defect at finger-tips by cross-arm skin flap with lateral ante-branchial cutaneous nerve].

OBJECTIVE: To summarize the application of cross-arm skin flaps with lateral antebranchial cutaneous nerve in repair of soft tissue defect. METHODS: From March 1996 to March 2001, 37 cases of soft tissue defect at fingertips were repaired by cross-arm skin flaps with lateral antebranchial cutaneous nerve, 1.5 cm x 1.5 cm to 3.5 cm x 4.0 cm in size. All of the cases were followed up for 3-48 months with routine evaluation of the wound and the function of hands. RESULTS: All of the flaps survived and the wound achieved primary healing. The sensation and shape of hands recovered well. CONCLUSION: It's a good choice to repair soft tissue defect at fingertips by cross-arm skin flaps with lateral antebranchial cutaneous nerve.

Adolescent↗
PubMed1994

Transposed replantation of fingers at forearm bones in severe segmental injuries across the hand and wrist.

There are situations in which amputated hands or fingers cannot be replanted directly back to their original positions. When there is severe segmental injury across the hand and wrist but one or several fingers are still healthy, the fingers can be selected to be replanted at the forearm bones to restore pinch function. This is different from the toe to antebrachial stump transplantation presented by Dr. Vilkki. From the results in four patients, the following conclusions are drawn: (1) When the fingers are replanted at the forearm bone(s), only pinch function can be obtained. There is no opposition. (2) Grip function is weak because the intrinsics are lost and only a few fingers are replanted. The forearm bones are often shortened, as are the flexors. (3) Of particular importance is the creation of a large web space between the radial digit and ulnar digit(s), because fingers are longer than toes. (4) The sensory recovery is not so good as in ordinary finger replantation. However, this is a salvage procedure. Regardless of these facts, the patients are still satisfied with the results out of such severe injuries. With good pinch function, not only are they independent in daily life, but they also can do a lot of work. It is a worthwhile procedure. A functional prosthesis can be added distally after this replantation.

Adult↗
PubMed2003

Ultrasonography for the interosseous membrane of the forearm.

The ability to improve the technique for an accurate clinical diagnosis of the injury of interosseous membrane of the forearm (IOM) associated with forearm fractures and dislocations is important for its treatment and prognosis. Ultrasound examination of the IOM in 46 forearms from 18 normal volunteers, five patients with restricted forearm pronation and supination, and two preoperative cases was performed to determine the usefulness and reproductivity of this examination. The intact IOM was observed as a continuous, slightly convex anteriorly and hyperechoic structure between the radius and ulna with both transverse and longitudinal views. IOMs with histories of forearm injuries were distinguished by the findings, which demonstrated a loss of continuity and were seen as hypoechoic traces from the others. This study confirmed that it is possible to trace the entire IOM and to detect differences between intact and disrupted IOMs with transverse and longitudinal views.

Adolescent↗