Technique for Minimally Invasive, Arthroscopic-assisted Distal Radius Fracture Fixation

Distal radius fractures are common injuries that often require surgical intervention. Commonly, these fractures are fixed using open reduction internal fixation with plating and screws. This often requires a more extensive soft tissue dissection and exposure. In contrast for certain cases, percutaneous headless compression screws may be appropriate. We present a technique for minimally invasive arthroscopic-assisted reduction and percutaneous screw fixation with an extremity traction device. A case is provided to demonstrate the technique as a viable option for the treatment of intra-articular distal radius fractures.

A Quality and Readability Comparison of Artificial Intelligence and Popular Health Website Education Materials for Common Hand Surgery Procedures

INTRODUCTION

ChatGPT and its application in producing patient education materials for orthopedic hand disorders has not been extensively studied. This study evaluated the quality and readability of educational information pertaining to common hand surgeries from patient education websites and information produced by ChatGPT.

METHODS

Patient education information for four hand surgeries (carpal tunnel release, trigger finger release, Dupuytren's contracture, and ganglion cyst surgery) was extracted from ChatGPT (at a scientific and fourth-grade reading level), WebMD, and Mayo Clinic. In a blinded and randomized fashion, five fellowship-trained orthopaedic hand surgeons evaluated the quality of information using a modified DISCERN criteria. Readability and reading grade level were assessed using Flesch Reading Ease (FRE) and Flesch-Kincaid Grade Level (FKGL) equations.

RESULTS

The Mayo Clinic website scored higher in terms of quality for carpal tunnel release information (p = 0.004). WebMD scored higher for Dupuytren's contracture release (p < 0.001), ganglion cyst surgery (p = 0.003), and overall quality (p < 0.001). ChatGPT - 4th Grade Reading Level, ChatGPT - Scientific Reading Level, WebMD, and Mayo Clinic written materials on average exceeded recommended reading grade levels (4th-6th grade) by at least four grade levels (10th, 14th, 13th, and 11th grade, respectively).

CONCLUSIONS

ChatGPT provides inferior education materials compared to patient-friendly websites. When prompted to provide more easily read materials, ChatGPT generates less robust information compared to patient-friendly websites and does not adequately simplify the educational information. ChatGPT has potential to improve the quality and readability of patient education materials but currently, patient-friendly websites provide superior quality at similar reading comprehension levels.

A Novel Classification of Intraoperative Ulnar Nerve Instability to Aid Transposition Surgery

HYPOTHESIS

The purpose of this study was to compare inter-and intraobserver agreement of a novel intraoperative subluxation classification for patients undergoing ulnar nerve surgery at the elbow. We hypothesize there will be strong inter- and intraobserver agreement of the four-category classification system and reviewers will have substantial confidence while reviewing the classification system.

METHODS

Four blinded fellowship-trained orthopedic hand surgeons reviewed 25 videos in total on two separate viewings, 21 days apart. Variables collected were ulnar subluxation classification (A, B, C or D) and a confidence metric. Subsequent to primary data collection, classification grading was stratified into A/B or C/D subgroups for further analysis. Cohen's kappa scores were used to evaluate all variables collected in this study. The interpretation of kappa scores included ≤0.0 as no agreement, 0.01-0.20 as none to slight, 0.21-0.40 as fair, 0.41-0.60 as moderate, 0.61-0.80 as substantial, and 0.81-1.0 as almost perfect agreement.

RESULTS

Interobserver agreement of subluxation classification as a four-category scale demonstrated a moderate agreement on first viewing, second viewing, and when both viewings were combined (kappa=0.51, 0.51, and 0.51 respectively). Seventy-five percent (3 out of 4) of reviewers had moderate intraobserver agreement for ulnar nerve subluxation classification while one reviewer had substantial intraobserver classification (kappa= 0.72). Overall, there was high confidence in 65% of classification scores in the second round of viewing, which improved from 58% in the first viewing round. When ulnar subluxation classification selections were regrouped into classes A/B or C/D, 100% of reviewers had substantial interobserver (kappa=0.74 - 0.75) and substantial to almost perfect intraobserver (kappa=0.71 to 0.91) agreement.

CONCLUSIONS

The four-category classification was reproducible within and between reviewers. Agreement appeared to increase when simplifying the classification to two categories, which may provide guidance to surgical decision making. The validation of a reproducible classification scheme for intraoperative ulnar subluxation may aid with decision making and further postoperative outcomes research.

Reliability of Assessing Distal Radius Fractures on a Smartphone Versus PACS

BACKGROUND

Communication between health care providers is becoming more intertwined with technology. During the pandemic, telehealth strategies grew exponentially. Remote viewing of imaging on a smartphone may offer efficient communication; however, the reliability of injury assessment when compared with traditional methods is not known. The purpose of this study was to evaluate intraobserver and interobserver reliability of distal radius fracture radiograph review for smartphone versus traditional Picture Archiving and Communication System (PACS).

METHODS

Eight evaluators (3 attending hand surgeons, 3 hand surgery fellows, 2 orthopedic residents) evaluated 26 distal radius fracture radiographs on 2 different viewers: smartphone or PACS. The reviewers were asked to record: (1) operative or nonoperative preference; (2) fracture classification (based on Fernandez and Jupiter); and (3) treatment strategy (volar plate, dorsal plate, pins, cast, bridge plate, or fragment-specific fixation). The percentage of intraobserver agreement was recorded for each observer. Reliability was calculated using Fleiss' kappa coefficient for intraobserver and interobserver agreement and graded by strength of correlation.

RESULTS

Intraobserver agreement averaged 97% when deciding between operative and nonoperative treatment, 76% for classification, and 84% for treatment. Kappa scores were graded as "excellent" for operative decision and "substantial" for classification and treatment. Attendings and fellows generally had higher agreement than that of residents. Interobserver agreement was graded as "substantial" for all categories for both PACS and smartphone.

CONCLUSIONS

Evaluation of radiographs on a smartphone for the purpose of treating distal radius fractures does not appear to be significantly different from an evaluation on traditional PACS.

Pulmonary Complications and Mortality in Patients with SARS-CoV-2 Undergoing Elective and Emergent Hand Surgery

Background  Patients acutely infected with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) may have increased risk for postsurgical pulmonary complications and mortality, particularly with general anesthesia. Surgery is often delayed to mitigate risk; however, excessive delays may result in morbidity. Optimal criteria for delaying surgery in patients with or without symptoms are unknown. This study aimed to evaluate any complications following hand surgery in patients testing positive for SARS-CoV-2. Methods  We retrospectively reviewed patients with a positive polymerase chain reaction test within 60 days before or after hand surgery between March 31, 2020 and March 31, 2021. Patients were telephoned also to supplement records. Type of surgery, type of anesthesia, comorbidities, timing of surgery, onset of symptoms, and complications were recorded. Results  We identified 21 patients undergoing 26 procedures, of which 21 (81%) were emergency procedures and 5 (19%) were elective. Mean age was 37 years (range: 17-71). General anesthesia was used in 88% of cases, with mean duration of 110 minutes. SARS-CoV-2 was diagnosed on average 6 days preoperatively (range: 39 days preop-14 days postop). Positive tests were usually identified preoperatively (50%), versus day-of-surgery (25%) or postoperatively (25%). Patients were symptomatic in only 27% of cases, and completely asymptomatic in 73%. No asymptomatic patients developed complications. One patient suffered a fracture malunion after delayed surgery. Pulmonary complications were noted in 3 patients; all had prior pulmonary disease and underwent emergency surgeries under general anesthesia. Overall mortality rate was 0%. Conclusion  Pulmonary complications and mortality are low following hand surgery in asymptomatic patients with a positive SARS-CoV-2 test.

All-Inside Versus Outside-in Repair of Triangular Fibrocartilage Complex Peripheral Tears

PURPOSE

Triangular fibrocartilage complex (TFCC) peripheral tears with persistent wrist pain can be treated with arthroscopic surgical repair owing to vascularization of the peripheral region. The safety and efficacy of all-inside repair has been shown in prior case series. The purpose of this study was to compare two methods of arthroscopic peripheral TFCC repair: all-inside vertical mattress and outside-in horizontal mattress.

METHODS

A 5-year retrospective review was performed on patients treated from 2016 to 2021 with wrist arthroscopy and TFCC repair for Palmer 1B tears. Patients with ulnar extrinsic ligament repair, distal radioulnar joint instability, concomitant ulnar shortening osteotomy, and extensor carpi ulnaris instability were excluded. Patient therapy and office visit records were reviewed. Outcomes including Quick Disabilities of the Arm, Shoulder, and Hand (QuickDASH); range of motion; grip strength; immobilization time; complications; and need for revision procedures were compared.

RESULTS

Fifty-two patients were included in the study, 32 in the outside-in group and 20 in the all-inside group. The average follow-up length was 24.8 weeks, with similar range of motion and strength in both groups. The average postoperative QuickDASH score was 13 in the outside-in group and 9 in the all-inside group at 43.5 months, compared with the preoperative QuickDASH scores of 47 and 50, respectively. Mean immobilization time was longer for outside-in than for all-inside (5.25 vs 2.0 weeks, respectively).

CONCLUSIONS

All-inside arthroscopic peripheral TFCC repair showed range of motion, grip strength, complications, revisions, and postoperative improvement in QuickDASH scores similar to those with the outside-in technique.

TYPE OF STUDY/LEVEL OF EVIDENCE

Therapeutic IV; retrospective comparative study.

Identifying High Direct Variable Costs of Open Carpal Tunnel Release Patients Using Time-Driven Activity-Based Costing

PURPOSE

To improve value in health care delivery, a deeper understanding of the cost drivers in hand surgery is necessary. Time-driven activity-based costing (TDABC) more accurately reflects true resource use compared with traditional accounting methods. This study used TDABC to explore the facility cost of carpal tunnel release and identify preoperative characteristics of high-cost patients.

METHODS

Using TDABC, we calculated the facility costs of 516 consecutive patients undergoing open carpal tunnel release at an orthopedic specialty hospital between 2015 and 2021. Patients in the top decile cost were defined as high-cost patients. Multivariable logistic regression was used to determine preoperative characteristics (age, sex, body mass index, race, ethnicity, Elixhauser comorbidity index, American Society of Anesthesiology score, preoperative Disabilities of the Arm, Shoulder and Hand score, Short-Form 12, and anesthesia type) independently associated with high-cost patients.

RESULTS

Surgery-related personnel costs were the main driver (38.0%) of total facility costs, followed by preoperative personnel costs (21.3%). There was a 1.8-fold variation in facility cost between patients in the 90th and 10th percentiles ($774.69 vs $431.35), with the widest cost variations belonging to medication costs ($17.67 vs $1.85; variation, 9.6-fold) and other supply costs ($213.56 vs $65.56; variation, 3.3-fold). Using multivariable regression, predictors of high cost were patient age and use of general anesthesia. Total facility costs correlated strongly with the total operating room time and incision to closure time.

CONCLUSIONS

Efforts to decrease operating room time may translate into reduced personnel costs and greater cost savings. Multidisciplinary initiatives to control medication expenses for patients at risk of high costs may narrow the existing variation in costs.

TYPE OF STUDY/LEVEL OF EVIDENCE

Economic and Decision Analysis II.

Finger Necrosis After Cutaneous Wart Intralesional Injection with Candida albicans Antigen: A Case Report

CASE

A 25-year-old man presented 18 hours after Candida albicans antigen injection into a left index finger cutaneous wart by his dermatologist. He experienced a rapid-onset inflammatory response, which was indistinguishable from gangrenous infection. Urgent incision and drainage was performed; however, no purulent collection was noted and no organism isolated. At 1-year follow-up, he made a full recovery.

CONCLUSION

Intralesional C. albicans antigen injection in digital cutaneous warts may cause an exaggerated immune response resulting in partial necrosis of the finger pulp. The clinical presentation may be difficult to distinguish from coexisting infection, but in some cases, observation may be an appropriate course of action.

Surveying the Use and Perceptions of Wrist Arthroscopy Among Upper Extremity Surgeons

This study describes current trends in the skill acquisition and practice patterns for wrist arthroscopy among upper extremity surgeons. A survey was sent to the membership of the American Association for Hand Surgery (AAHS). A total of 104 responses were available for analysis. Of those respondents who did not use wrist arthroscopy, lack of educational training was cited as the most common reason. Of those who did use arthroscopy, fellowship training was credited as the primary source. However, most of those who completed an instructional course felt immediately able to perform arthroscopy. Triangular fibrocartilage complex tears were recorded as the most common indication. Surgeons frequently evaluated the midcarpal joint, but did not frequently use arthroscopy for distal radio-ulnar joint or carpometacarpal joint pathology. Ultimately, this highlights an area of improvement for residency and fellowship education. [Orthopedics. 2022;45(5):310-313.].

Managing Challenges in Thumb Carpometacarpal Arthritis

Thumb carpometacarpal osteoarthritis is commonly encountered and multifactorial in etiology, and its management is based on the radiographic stage and surgeon preference. A variety of management strategies exist including ligament reconstruction, arthroscopic débridement, extension osteotomy, open versus arthroscopic total and partial trapeziectomy with or without interposition and/or suspensionplasty, arthrodesis, and total or hemi implant arthroplasty. A review of the literature shows each of these management strategies to be effective in pain relief, but no one procedure has been shown to be superior despite theoretic benefits to preserving trapezial height. The one common denominator is removal of the arthritic contact between the thumb metacarpal and trapezial surfaces.

Antibiotic Management and Antibiotic Resistance in Hand Infections

The rates of methicillin-resistant infections in the hand and upper extremity approach 50% in many facilities. In addition, multidrug resistance is beginning to include clindamycin. This article discusses the history, prevalence, and treatment of both community-acquired and health care-associated methicillin-resistant Staphylococcus aureus in regard to hand infections.

Contralateral Heterotopic Thumb-to-Thumb Replantation With Free Ulnar Forearm Fasciocutaneous Flap and Targeted Muscle Reinnervation

Mangling hand injuries can be difficult to manage owing to the severity and heterogeneity of the injuries. Outcomes after reconstruction of unique injuries are less well-known but provide valuable insight. We present an unusual spare parts reconstruction of a bilateral upper-extremity mangling injury treated with a heterotopic thumb-to-thumb replantation, an acute forearm fasciocutaneous free flap, and targeted muscle reinnervation. This report highlights the utility of microsurgical reconstruction with available autogenous tissue in the acute setting.

"Damage Control" Hand Surgery: Evaluation and Emergency Management of the Mangled Hand

Mangled hand injuries are defined as those with significant damage to multiple structures, which may be limb threatening. Historically these injuries resulted in amputation or death, but modern surgical and perioperative advances allow for complex reconstruction and the possibility of a sensate and functional limb. Evaluation begins with surveying for life-threatening injuries followed by a systematic approach to identify injured structures; management begins with preserving all parts, minimizing warm ischemia time, performing débridement, and planning an operative approach to optimize the chance of a functional limb. With careful surgical planning and a well-executed reconstruction, most limbs can be salvaged.

Septic Arthritis of the Wrist: Incidence, Risk Factors, and Predictors of Infection

Septic arthritis of the wrist can result in permanent damage to the joint, making timely diagnosis crucial to initiate empiric antibiotics and surgical intervention. Although septic arthritis is routinely included in the differential diagnosis of atraumatic wrist pain, the incidence is unknown. Unlike large joints, there is no consensus on cell count values considered pathognomonic for wrist septic arthritis. The goal of this retrospective study was to determine the incidence of wrist septic arthritis and to identify the clinical, serum, and joint fluid values that predict infection. The records of patients who presented to a single urban hospital with a swollen, painful wrist without trauma during a 10-year period were reviewed. For patients who had a joint fluid analysis, the records were examined for history as well as demographic and laboratory data. Joint fluid analysis consisted of cell count, Gram stain, and cultures. Of 892 patients who met the inclusion criteria, 1.5% had wrist septic arthritis. Variables associated with septic arthritis included serum white blood cell count above 11,000/µL, core temperature above 100.4°F within 24 hours of aspiration, history of intravenous drug abuse, and smoking. No joint cell count analysis predicted septic arthritis, although patients with septic wrists had an elevated joint white blood cell count above 97,000/µL. Wrist septic arthritis is uncommon; however, objective factors can help identify patients at risk. Because joint cell count analysis cannot reliably predict a septic wrist, priority for joint aspirations with limited fluid should be given instead to Gram stain, culture, and crystal analysis. [Orthopedics. 2017; 40(3):e526-e531.].

Radial Artery Pseudoaneurysm

PURPOSE

To review the causes, clinical course, and management of patients with catheter-associated radial artery pseudoaneurysm (PSA).

METHODS

We reviewed all patients diagnosed with radial artery PSA resulting from arterial line placement or radial artery access for cardiac procedures from 2010 to 2015.

RESULTS

We identified 11 cases: 5 caused by arterial lines and 6 by cardiac procedures. The diagnosis was confirmed by duplex ultrasound in all cases; PSA size ranged from less than 1 cm to 5 cm in diameter. Spontaneous thrombosis (over a mean of 27 days) occurred in 4 patients; each PSA was smaller than 3 cm. Surgery was performed in 7 patients with excision of the stalk and repair of the artery as the most common procedure. Only one case was performed emergently for acute carpal tunnel syndrome. Complications occurring owing to either the PSA or the treatment were recorded in 5 patients.

CONCLUSIONS

Spontaneous thrombosis may occur in smaller lesions over a few weeks. When required, surgery to evacuate the hematoma and repair the artery was effective in all cases.

TYPE OF STUDY/LEVEL OF EVIDENCE

Therapeutic IV.

The Effects of Early Antibiotic Administration on Bacterial Culture Growth From Hand Abscesses

BACKGROUND

Traditional management of hand abscesses consists of withholding antibiotics prior to drainage to optimize bacterial culture growth and outcome. The purpose of this study was to determine the effect of preoperative empiric antibiotics on the rate of culture growth and rate of adverse events in patients with acute hand abscesses.

METHODS

We performed a retrospective review of prospectively collected data on 88 consecutive hand abscesses that received empiric antibiotics prior to incision and drainage from 2012 to 2013 at an urban academic institution. We analyzed patient demographics, bacteriology, culture growth results, time to surgery, and frequency of adverse events.

RESULTS

The overall rate of positive culture growth was 90% (n = 79) despite running the antibiotics for a mean of 31 hours prior to debridement. Furthermore, 96% of the isolates were given a susceptible antibiotic during that time. The mean number of debridements was 1.5 per patient, but 4 re-operations were necessary for wound complications. No patients required an amputation or were upgraded to intensive care.

CONCLUSIONS

Preoperative empiric antibiotic administration does not appear to greatly reduce bacterial culture growth from hand abscesses. The adverse events are relatively few for simple abscesses treated with pre-surgical antibiotics and decompression within 24 hours.

Risk factors associated with clindamycin-resistant, methicillin-resistant Staphylococcus aureus in hand abscesses

PURPOSE

To identify risk factors for clindamycin resistance in acute hand abscesses caused by methicillin-resistant Staphylococcus aureus (MRSA).

METHODS

We performed a retrospective review of 247 consecutive culture-positive hand abscesses from 2010 to 2012 at an urban hospital. Historical and laboratory data from patients with abscesses that grew MRSA with and without clindamycin resistance were compared in a multivariate analysis.

RESULTS

Methicillin-resistant Staphylococcus aureus grew on culture from 103 abscesses; 16% of those isolates were resistant to clindamycin. Multivariate analysis showed that younger age, intravenous drug use, and nosocomial acquired MRSA were significant risk factors for concurrent clindamycin resistance. Patients with a history of intravenous drug use and nosocomial acquired MRSA were, respectively, 11 and 5 times more likely to have concurrent clindamycin resistance. History of MRSA infection and human immunodeficiency virus were not identified as risk factors.

CONCLUSIONS

Patients with a history of intravenous drug use or recent contact with health care facilities appear to be a potential reservoir for emerging multidrug-resistant MRSA. Selection of clindamycin as an empiric antibiotic should be especially avoided for these groups.

TYPE OF STUDY/LEVEL OF EVIDENCE

Prognostic III.

Emerging multidrug resistance of methicillin-resistant Staphylococcus aureus in hand infections

BACKGROUND

Methicillin-resistant Staphylococcus aureus has been the most commonly identified pathogen in hand infections at urban centers, but the evolving antibiotic sensitivity profiles of methicillin-resistant Staphylococcus aureus are not known. The purposes of this study are to determine if multidrug resistance in methicillin-resistant Staphylococcus aureus is emerging and to provide current recommendations for empiric antibiotic selection for hand infections in endemic regions.

METHODS

An eight-year longitudinal, retrospective chart review was performed on all culture-positive hand infections encountered by an urban hospital from 2005 to 2012. The proportions of all major organisms were calculated for each year. Methicillin-resistant Staphylococcus aureus infections were additionally analyzed for antibiotic sensitivity.

RESULTS

A total of 683 culture-positive hand infections were identified. Overall, methicillin-resistant Staphylococcus aureus grew on culture in 49% of cases; the annual incidence peaked at 65% in 2007. Over the study period, methicillin-resistant Staphylococcus aureus was universally resistant to penicillin, oxacillin, and ampicillin. Clindamycin resistance significantly increased, approaching 20% by 2012 (p = 0.02). Levofloxacin resistance linearly increased from 12% to 50% (p < 0.01). Resistance to trimethoprim-sulfamethoxazole, tetracycline, gentamicin, and moxifloxacin was only sporadically observed. Resistance to vancomycin, daptomycin, linezolid, and rifampin was not observed.

CONCLUSIONS

Significant increases in resistance to clindamycin and levofloxacin were observed in recent years, and empiric therapy with these drugs may have limited efficacy, especially in urban centers.

CLINICAL RELEVANCE

Hand infections caused by methicillin-resistant Staphylococcus aureus may be developing increasing resistance to clindamycin and levofloxacin in recent years. This longitudinal study examines the effectiveness of a variety of antibiotics to methicillin-resistant Staphylococcus aureus.

Comparison of ultrasound and electrodiagnostic testing for diagnosis of carpal tunnel syndrome: study using a validated clinical tool as the reference standard

BACKGROUND

Ultrasound examination is both accurate and cost-effective for the confirmation of a clinical diagnosis of carpal tunnel syndrome. Previous studies have shown electrodiagnostic testing and ultrasound to be similar with regard to sensitivity and specificity. The purpose of this study was to compare the sensitivity and specificity of ultrasound and electrodiagnostic testing by using a validated clinical diagnostic tool as the reference standard.

METHODS

All consecutive patients referred to an upper-extremity practice for electrodiagnostic testing for any reason over a three-month period were recruited to participate in this study. All patients were evaluated with the use of the Carpal Tunnel Syndrome 6 (CTS-6) clinical diagnostic tool, and a score of ≥12 was considered positive for carpal tunnel syndrome. A positive finding on ultrasound was considered to be a cross-sectional area of the median nerve, measured just proximal to the level of the pisiform, of ≥10 mm(2). A positive finding on electrodiagnostic testing was a distal motor latency of ≥4.2 ms and/or a distal sensory latency of ≥3.2 ms. Sensitivity, specificity, and accuracy were calculated for ultrasound and electrodiagnostic testing with use of the CTS-6 as the reference standard.

RESULTS

With use of the CTS-6 as the reference standard, ultrasound had a sensitivity of 89% and a specificity of 90% in our series of eighty-five patients. Electrodiagnostic testing had a sensitivity of 89% and a specificity of 80%. The positive predictive value of ultrasound was 94% compared with 89% for electrodiagnostic testing. The negative predictive value of ultrasound was 82% compared with 80% for electrodiagnostic testing. Ultrasound was accurate in seventy-six (89%) of the eighty-five cases whereas electrodiagnostic testing was accurate in seventy-three (86%) of the eighty-five cases (p = 0.5).

CONCLUSIONS

While ultrasound will not replace electrodiagnostic testing in complicated or unclear cases, in a select group of patients with a positive CTS-6, ultrasound can be used to confirm the diagnosis of carpal tunnel syndrome with better specificity and equal sensitivity as compared with those of electrodiagnostic testing.

LEVEL OF EVIDENCE

Diagnostic Level I. See Instructions for Authors for a complete description of levels of evidence.

Interobserver variability in the treatment of little finger metacarpal neck fractures

PURPOSE

To address the null hypothesis that surgeons shown radiographs of little finger metacarpal neck fractures with measured fracture angulation would recommend surgery as often as surgeons shown unmarked radiographs.

METHODS

Members of the Science of Variation Group, an international collaboration of fully trained orthopedic and trauma surgeons, were asked to review 20 little finger metacarpal neck fracture cases, which included a vignette and 3 high-quality radiographs. Members were then randomized to review radiographs with or without measured fracture angulation on the lateral view and select operative or nonoperative management.

RESULTS

Surgeons shown radiographs with measured angulation were more likely to recommend surgery, and there was less variability among these surgeons, particularly for fractures with less angular deformity.

CONCLUSIONS

Measured fracture angulation has a small but significant influence on treatment recommendations for little finger metacarpal neck fractures.

TYPE OF STUDY/LEVEL OF EVIDENCE

Diagnostic III.

Povidone-iodine soaks for hand abscesses: a prospective randomized trial

PURPOSE

To determine the effect of povidone-iodine soaks on outcomes of hand infections after operative drainage.

METHODS

We performed a single-center, prospective, randomized trial to evaluate 100 consecutive hand infections. Forty-nine patients received povidone-iodine soaks 3 times daily, and 51 patients received only daily dressing changes. Outcome measures were the number of operations, readmissions, reoperations for wound complications, and days spent in the hospital.

RESULTS

Patients treated with povidone soaks averaged 1.6 operations, and patients treated with daily dressing changes averaged 1.4 operations, a statistically insignificant difference. The mean number of operations was also not different between groups for the dorsal hand or dorsal finger abscess subcategories. No significant differences were found in length of stay, number of readmissions, or number of reoperations for wound complications.

CONCLUSIONS

Povidone-iodine soaks are not helpful in the postoperative management of hand infections

TYPE OF STUDY/LEVEL OF EVIDENCE

Therapeutic II.

Surgical management principles of gunshot-related fractures

This article discusses contemporary management strategies for gunshot-related fractures with special attention paid to the initial evaluation, role of debridement, principles of fixation, need and duration of antibiotic therapy, and management of sequelae. Pertinent sequelae detailed are fractures associated with vascular injury, compartment syndrome, massive loss of soft tissue and bone, nerve injury, and lead toxicity.

Prospective evaluation of pronator quadratus repair following volar plate fixation of distal radius fractures

PURPOSE

To evaluate the efficacy of pronator quadratus (PQ) repair after volar plating of distal radius fractures.

METHODS

All consecutive distal radius fractures treated operatively with a volar plate during a 1-year period were assigned to receive a repair of the PQ versus no repair. Surgical exposure, reduction, and postoperative rehabilitation were equivalent in both groups. Clinical outcomes with a minimum follow-up of 12 months were assessed via range of motion; grip strength; Disabilities of the Arm, Shoulder, and Hand (DASH) scores; and visual analog scale (VAS) scores.

RESULTS

A total of 60 consecutive distal radius fractures were treated operatively with a locking volar plate. Full follow-up data were available for 33 patients in the PQ repair group and 24 patients in the control group. At 12 months, the mean DASH score was 8 for the repair group and 5 for the control group. Range of motion at the wrist, grip strength, and VAS scores were also not significantly different between groups. In addition, we found no significant differences in any of the parameters at the 2-, 6-, or 12-week intervals, although we observed greater grip strength and wrist flexion in the repair group at 6 weeks. Reoperation was required for 4 patients in the repair group and 1 in the control group.

CONCLUSIONS

Pronator quadratus repair after volar plating of a distal radius fractures did not significantly improve postoperative range of motion, grip strength, or DASH and VAS scores at 1 year. The rates of reoperation between groups were not significantly different.

Lateral epicondylitis of the elbow

Lateral epicondylitis, or "tennis elbow," is a common musculotendinous degenerative disorder of the extensor origin at the lateral humeral epicondyle. Repetitive occupational or athletic activities involving wrist extension and supination are thought to be causative. The typical symptoms include lateral elbow pain, pain with wrist extension, and weakened grip strength. The diagnosis is made clinically through history and physical examination; however, a thorough understanding of the differential diagnosis is imperative to prevent unnecessary testing and therapies. Most patients improve with nonoperative measures, such as activity modification, physical therapy, and injections. A small percentage of patients will require surgical release of the extensor carpi radialis brevis tendon. Common methods of release may be performed via percutaneous, arthroscopic, or open approaches.

Is antibiotic prophylaxis necessary in elective soft tissue hand surgery?

Antibiotic prophylaxis for clean soft tissue hand surgery is not yet defined. Current literature focuses on overall orthopedic procedures, traumatic hand surgery, and carpal tunnel release. However, a paucity of data exists regarding the role of antibiotic prophylaxis in a broader variety of soft tissue hand procedures. The goal of the current study was to evaluate the rates of surgical site infection following elective soft tissue hand surgery with respect to administration of prophylactic antibiotics.A multicenter, retrospective review was performed on 600 consecutive elective soft tissue hand procedures. Procedures with concomitant implant or incomplete records were excluded. Antibiotic delivery was given at the discretion of the attending surgeon. Patient comorbidities were recorded. Outcomes were measured by the presence of deep or superficial infections within 30 days postoperatively. The 4 most common procedures were carpal tunnel release, trigger finger release, mass excision, and first dorsal compartment release. The overall infection rate was 0.66%. All infections were considered superficial, and none required surgical management. In patients who received antibiotic prophylaxis (n=212), the infection rate was 0.47%. In those who did not receive prophylaxis (n=388), the infection rate was 0.77%. These differences were not statistically significant (P=1.00).

Pigmented villonodular synovitis presenting as a baker cyst

Pigmented villonodular synovitis (PVNS), a rare hyperproliferation of the synovial lining, commonly mimics other conditions. As a result, the diagnosis may remain elusive, as the classic signs of tenderness and effusion are not specific. Occasionally, PVNS presents as a popliteal cyst, which may divert attention from intra-articular pathology. In this article, we describe a case of PVNS that presented with a popliteal cyst as the chief problem report. In other cases PVNS presented as a popliteal cyst, and evidence was reported of PVNS within the cyst stalk and presumable intra-articular involvement. Our case did not present this way. We recommend that the diagnosis of PVNS be considered in young adults who present with a popliteal cyst.

Classification and treatment of proximal humerus fractures: inter-observer reliability and agreement across imaging modalities and experience

SUMMARY

Proximal humerus fractures (PHF) are common injuries, but previous studies have documented poor inter-observer reliability in fracture classification. This disparity has been attributed to multiple variables including poor imaging studies and inadequate surgeon experience. The purpose of this study is to evaluate whether inter-observer agreement can be improved with the application of multiple imaging modalities including X-ray, CT, and 3D CT reconstructions, stratified by physician experience, for both classification and treatment of PHFs.

METHODS

Inter-observer agreement was measured for classification and treatment of PHFs. A total of sixteen fractures were imaged by plain X-ray (scapular AP and lateral), CT scan, and 3D CT reconstruction, yielding 48 randomized image sets. The observers consisted of 16 orthopaedic surgeons (4 upper extremity specialists, 4 general orthopedists, 4 senior residents, 4 junior residents), who were asked to classify each image set using the Neer system, and recommend treatment from four pre-selected choices. The results were evaluated by kappa reliability coefficients for inter-observer agreement between all imaging modalities and sub-divided by: fracture type and observer experience.

RESULTS

All kappa values ranged from "slight" to "moderate" (k = .03 to .57) agreement. For overall classification and treatment, no advanced imaging modality had significantly higher scores than X-ray. However, when sub-divided by experience, 3D reconstruction and CT scan both had significantly higher agreement on classification than X-ray, among upper extremity specialists. Agreement on treatment among upper extremity specialists was best with CT scan. No other experience sub-division had significantly different kappa scores. When sub-divided by fracture type, CT scan and 3D reconstruction had higher scores than X-ray for classification only in 4-part fractures. Agreement on treatment of 4 part fractures was best with CT scan. No other fracture type sub-division had significantly different kappa scores.

CONCLUSIONS

Although 3D reconstruction showed a slight improvement in the inter-observer agreement for fracture classification among specialized upper extremity surgeons compared to all imaging modalities, fracture types, and surgeon experience; overall all imaging modalities continue to yield low inter-observer agreement for both classification and treatment regardless of physician experience.

Classification and treatment of proximal humerus fractures: inter-observer reliability and agreement across imaging modalities and experience

SUMMARY

Proximal humerus fractures (PHF) are common injuries, but previous studies have documented poor inter-observer reliability in fracture classification. This disparity has been attributed to multiple variables including poor imaging studies and inadequate surgeon experience. The purpose of this study is to evaluate whether inter-observer agreement can be improved with the application of multiple imaging modalities including X-ray, CT, and 3D CT reconstructions, stratified by physician experience, for both classification and treatment of PHFs.

METHODS

Inter-observer agreement was measured for classification and treatment of PHFs. A total of sixteen fractures were imaged by plain X-ray (scapular AP and lateral), CT scan, and 3D CT reconstruction, yielding 48 randomized image sets. The observers consisted of 16 orthopaedic surgeons (4 upper extremity specialists, 4 general orthopedists, 4 senior residents, 4 junior residents), who were asked to classify each image set using the Neer system, and recommend treatment from four pre-selected choices. The results were evaluated by kappa reliability coefficients for inter-observer agreement between all imaging modalities and sub-divided by: fracture type and observer experience.

RESULTS

All kappa values ranged from "slight" to "moderate" (k = .03 to .57) agreement. For overall classification and treatment, no advanced imaging modality had significantly higher scores than X-ray. However, when sub-divided by experience, 3D reconstruction and CT scan both had significantly higher agreement on classification than X-ray, among upper extremity specialists. Agreement on treatment among upper extremity specialists was best with CT scan. No other experience sub-division had significantly different kappa scores. When sub-divided by fracture type, CT scan and 3D reconstruction had higher scores than X-ray for classification only in 4-part fractures. Agreement on treatment of 4 part fractures was best with CT scan. No other fracture type sub-division had significantly different kappa scores.

CONCLUSIONS

Although 3D reconstruction showed a slight improvement in the inter-observer agreement for fracture classification among specialized upper extremity surgeons compared to all imaging modalities, fracture types, and surgeon experience; overall all imaging modalities continue to yield low inter-observer agreement for both classification and treatment regardless of physician experience.

[Scanning electron microscopic study of the surface finish of the round sections of preformed arches of NiTi (orthodontic wires made of nickel/titanium]

The authors indicate the advantageous characteristics of NiTi wire, focusing the attention on finishing surface accuracy. Every surface damage can become the start of a fracture.

[Preformed round-section NiTi arch wires: the mechanical and clinical aspects]

The authors emphasize the need to set up several products proposed by the manufacturers. Regarding to orthodontic wires, a suitable evaluation of their mechanical properties to fit them for clinical use is needed. After a short outline of the mechanical properties of the wires on the market, the authors focus their attention on the NiTi Japanese alloy superelastic wires. Therefore, an evaluation of the failure aspect of NiTi preformed arch wires with round section of 0.018" of diameter is reported. The tested wires underwent to clinical use as first arch wires, and were evaluated after 8 weeks from the beginning of the therapy, when they have shown failure at the control in the 8th week. After having cleansed and prepared the specimens, their failure zones have been observed by the SEM. The failure aspect was evaluated to check the reasons that produced it, basing on its surface characteristics. The aspect of the surface of the failure and the absence of permanent deformations showed that it is a fragile failure. The fragile failure occurs when materials are not able to tolerate plastic deformations and, typically concerning NiTi alloys constituent the tested wires, it joins the superelastic behaviour and the high wire resilience. It means that this wire is able to produce constant, continuous and light forces for a given stress range, and, furthermore, it is able to absorb energy without permanent deformations. Since 1971 NiTi wires have been on the market but without superelastic and crystallographic shape memory properties possessed by the wires produced by Furukawa El. Co. in 1978.(ABSTRACT TRUNCATED AT 250 WORDS)