Faculty Bibliography

A 29-year-old female presented with pain and a palpable mass in the left wrist. Imaging demonstrated a multiloculated cystic mass adjacent to the radial aspect of the scaphoid, which was intimately associated with and appeared to arise from the wall of the radial artery and its dorsal branch. The mass was surgically resected. The histological analysis confirmed the presence of adventitial cystic disease (ACD) of the radial artery. In addition, within a year time span, a second 34-year-old male patient presented with a palpable mass in the right hand. Imaging demonstrated a cystic mass encasing the dorsal carpal branch of the radial artery and its terminal vessels to the thumb and index finger. The diagnosis of ACD was raised based on MR imaging. Histological analysis confirmed the presence of an adventitial cyst. ACD of the arteries is a rare disorder of unknown etiology, which usually involves the popliteal artery. Less common sites of involvement include the external iliac, common femoral, radial, and ulnar arteries. To our knowledge, there have only been six previous case reports of adventitial cystic disease involving the radial artery. The imaging features, histology, differential diagnosis, pathogenesis, and treatment are discussed.

Extra-articular middle phalangeal neck fractures are uncommon fractures of the hand that are often difficult to treat. Surgery is indicated when closed reduction fails; 1 option is closed reduction and percutaneous pinning. Maintaining closed reduction while inserting K-wires is challenging. We present a new technique for percutaneous pinning of these fractures that was developed to address these issues. Our technique uses flexion of the interphalangeal joints during K-wire insertion to maintain fracture reduction and improve fixation.

OBJECTIVE:: To compare the efficacy of anesthetic type on clinical outcomes after operative treatment of distal radius fractures. DESIGN:: Retrospective review of prospectively collected data. SETTING:: Academic medical center. PATIENTS:: One hundred eighty-seven patients with a distal radius fracture (OTA type 23) were identified within a registry of 600 patients. INTERVENTION:: Patients with operative distal radius fractures underwent open reduction and internal fixation with a volarly applied plate and screws under regional or general anesthesia. MAIN OUTCOME MEASUREMENTS:: Clinical, radiographic, and patient-based functional outcomes were recorded at routine postoperative intervals. Complications were recorded. RESULTS:: One hundred eighty-seven patients met inclusion criteria and had a minimum of 1-year follow-up. There were no differences between the groups with regard to patient demographics or fracture types treated. At both 3 and 6 months post surgery, pain was diminished among those patients who received a regional block. Wrist and finger range of motion for patients who received regional versus general anesthesia was improved at all follow-up points. Patients who received regional anesthesia also had higher functional scores as measured by the Disabilities of the Arm, Shoulder and Hand at 3 months (P = 0.04) and 6 months (P = 0.02). CONCLUSION:: Patients who are candidates should be offered regional anesthesia when undergoing repair of a displaced distal radius fracture.

Contractures of the intrinsic muscles of the fingers disrupt the delicate and complex balance of intrinsic and extrinsic muscles, which allows the hand to be so versatile and functional. The loss of muscle function primarily affects the interphalangeal joints but also may affect etacarpophalangeal joints. The resulting clinical picture is often termed, intrinsic contracture or intrinsic-plus hand. Disruption of the balance between intrinsic and extrinsic muscles has many causes and may be secondary to changes within the intrinsic musculature or the tendon unit. This article reviews diagnosis, etiology, and treatment algorithms in the management of intrinsic contractures of the fingers

PURPOSE: Many different stress views for the diagnosis of scapholunate (SL) instability have been described in the literature. The purpose of this study is to compare these stress views and determine which view has the greatest utility for demonstrating SL gap radiographically. METHODS: We performed a literature search for articles describing SL radiographic stress views. We created SL instability in 9 cadaveric wrists by ligamentous sectioning and imaged each specimen using all radiographic views found in the literature. These included the 'clenched pencil' view, clenched fist views in varying positions, and traction views. Scapholunate gaps were measured using digital calipers. RESULTS: We found 8 different SL radiographic stress views specifically described in the literature. In order to further characterize the best stress views, we studied additional parameters, including varied ulnar deviation and degree of obliquity. The clenched pencil view resulted in the most consistent views with the widest SL gaps. With clenched fist views, SL gap trended to a peak at 30 degrees of ulnar deviation. CONCLUSIONS: The clenched pencil view was the best stress view to demonstrate dynamic SL instability. It also allows for a contralateral comparison on 1 radiograph. We recommend this view when evaluating for SL pathology. CLINICAL RELEVANCE: This assessment of relative diagnostic utility might assist clinicians in the creation and use of protocols for the diagnosis of dynamic SL instability

Group A streptococcus is responsible for a diverse range of soft tissue infections. Manifestations range from minor oropharyngeal and cellulitic skin infections to more severe conditions such as necrotizing fasciitis and septic shock. Troubling increases in the incidence and the severity of streptococcal infections have been reported over the past 25 years. Cases of streptococcal necrotizing fasciitis have received significant attention in the literature, with prompt surgical debridement being the mainstay of treatment. However, cases of rapidly progressing upper extremity streptococcal cellulitis leading to shock and a subsequent surgical intervention have not been well described.This article presents a case of an 85-year-old woman with a rapidly progressing, erythematous, painful, swollen hand associated with fever, hypotension, and mental status change. Due to a high clinical suspicion for necrotizing fasciitis, the patient was rapidly resuscitated and underwent immediate surgical irrigation and debridement. All intraoperative fascial pathology specimens were negative for necrotizing fasciitis, leading to a final diagnosis of Group A streptococcal cellulitis. Although surgical intervention is not commonly considered in patients with cellulitis, our patient benefited from irrigation and debridement with soft tissue decompression. In cases of necrotizing fasciitis as well as rapidly progressive cellulitis, prompt diagnosis and aggressive treatment may help patients avoid the catastrophic consequences of rapidly progressive group A streptococcal infections

BACKGROUND: There is much debate regarding the optimal treatment of displaced, unstable distal radial fractures in the elderly. The purpose of this retrospective review was to compare outcomes for elderly patients with a displaced distal radial fracture who were treated with or without surgical intervention. METHODS: This case-control study examined ninety patients over the age of sixty-five who were treated with or without surgery for a displaced distal radial fracture. All fractures were initially treated with closed reduction and splinting. Patients who failed an acceptable closed reduction were offered surgical intervention. Patients who did not undergo surgery were treated until healing with cast immobilization. Patients who underwent surgery were treated with either plate-and-screw fixation or external fixation. Baseline radiographs and functional scores were obtained prior to treatment. Follow-up was conducted at two, six, twelve, twenty-four, and fifty-two weeks. Clinical and radiographic follow-up was completed at each visit, while functional scores were obtained at the twelve, twenty-four, and fifty-two-week follow-up evaluations. Outcomes at fixed time points were compared between groups with standard statistical methods. RESULTS: Forty-six patients with a mean age of seventy-six years were treated nonoperatively, and forty-four patients with a mean age of seventy-three years were treated operatively. Other than age, there was no difference with respect to baseline demographics between the cohorts. At twenty-four weeks, patients who underwent surgery had better wrist extension (p = 0.04) than those who had not had surgery. At one year, this difference was not seen. No difference in functional status based on the Disabilities of the Arm, Shoulder and Hand scores and pain scores at any of the follow-up points was seen between the groups. Grip strength at one year was significantly better in the operative group. Radiographic outcome was superior for the patients in the operative group at each follow-up interval. There was no difference between the groups with regard to complications. CONCLUSIONS: Our findings suggest that minor limitations in the range of wrist motion and diminished grip strength, as seen with nonoperative care, do not seem to limit functional recovery at one year. LEVEL OF EVIDENCE: Therapeutic Level III. See Instructions to Authors for a complete description of levels of evidence

PURPOSE: Extensor tendon injuries are common; however, relatively few studies have evaluated extensor tendon repair methods. The purpose of this study was to investigate the properties of the running-interlocking horizontal mattress repair method with regard to tendon shortening, stiffness, strength, and time needed to perform the repair, compared with the modified Bunnell method and the augmented Becker method. METHODS: Twenty-four extensor tendons from 8 fresh-frozen cadaveric hands were harvested from zone 6. The harvested tendons were randomly assigned into 1 of 3 repair groups: augmented Becker, modified Bunnell, and running-interlocking horizontal mattress repair methods. The running-interlocking horizontal mattress repair combines a running suture with an interlocking horizontal mattress suture. Each repaired tendon was measured for length before and after repair and tested for stiffness, ultimate load to failure, and time required to perform the repair. RESULTS: The running-interlocking horizontal mattress repair was significantly stiffer (8,506 N/m) than the augmented Becker (5,971 N/m) and the modified Bunnell (6,719 N/m) repairs. The running-interlocking horizontal mattress repair resulted in significantly less shortening (1.7 mm) than the augmented Becker (6.2 mm) and modified Bunnell (6.3 mm) repairs. The running-interlocking horizontal mattress repair took significantly less time to perform without a significant difference in the ultimate load to failure (running-interlocking horizontal mattress repair, 51 N; augmented Becker, 53 N; modified Bunnell, 48 N). CONCLUSIONS: The running-interlocking horizontal mattress repair is significantly stiffer and faster to perform than either the augmented Becker or the modified Bunnell repairs, and it results in less shortening than either of these methods. The running-interlocking horizontal mattress repair should be strong enough to withstand some early motion