Wide-Awake Local Anesthetic No Tourniquet Surgery of the Foot and Ankle.

Wide awake local anesthetic no tourniquet (WALANT) surgery of the foot and ankle has the potential to offer safe and effective surgeon-based anesthesia for a significant number of surgeries about the foot and ankle. This has been documented with significant and growing body of literature. WALANT could offer significant advantages with respect to patient experience, per case cost of procedures as well as for improving access for patients to operative resources in a setting of scarcity or restricted access.

A physiological assessment of patient pain during surgery with wide-awake local anesthesia.

PURPOSE: Patients receiving surgery with wide-awake local anesthesia typically report little or no intraoperative pain. However, self-report assessments of pain are susceptible to bias. In the present study, patient self-report ratings were supplemented with objective physiological measures of electrodermal activity. METHODS: Fifteen patients receiving forefoot surgery using wide-awake local anesthesia were recruited. Pain ratings and skin conductance responses were acquired during the initial anesthetic injection (into unanesthetized tissue), during a follow-up anesthetic injection (into anesthetized tissue), and during five intraoperative procedures. RESULTS: The highest ratings of self-reported pain coincided with the initial anesthetic injection, and pain ratings were similarly low at all remaining measurement points. Fourteen patients reported no pain beyond the initial injection, whereas one patient reported minimal pain during two intraoperative procedures. Skin conductance data were consistent with pain ratings such that responses to the initial injection were significantly larger than responses at any subsequent measurement point. CONCLUSION: These results provide further evidence that patients experience little or no pain during surgery with wide-awake local anesthesia.

Qualitative aspects of patient pain during surgery with wide-awake local anesthesia.

PURPOSE: Studies assessing intraoperative pain during surgery with wide-awake local anesthesia typically use a unidimensional pain scale, which provides a limited view of the pain experience. The present paper describes two studies that assessed qualitative aspects of intraoperative pain using a multidimensional pain measure. METHODS: The first study was a retrospective survey of 24 patients who received a variety of foot and ankle procedures under wide-awake local anesthesia. Patients completed a copy of the Short-Form McGill Pain Questionnaire (SF-MPQ) through the mail an average of six months following surgery. The second study was a prospective assessment of 40 patients receiving forefoot procedures under the same anesthesia. Patients completed a copy of the SF-MPQ directly after the surgery. RESULTS: Patients in the first study selected an average of 1.17 pain descriptors (SD = 3.02) on the SF-MPQ, whereas patients in the second study selected an average of 1.90 pain descriptors (SD = 1.82). In general, both studies found that sensory descriptors of pain (e.g., sharp, shooting, tender) were more common than affective descriptors. However, mean intensity ratings were low for all descriptors. CONCLUSION: The results of these studies provide a more comprehensive understanding of the patient experience during surgery with wide-awake local anesthesia.

A prospective comparison of wide-awake local anesthesia and general anesthesia for forefoot surgery.

BACKGROUND: A recent case series suggested that surgery with wide-awake local anesthesia is tolerated well by most foot and ankle patients. However, patients were assessed retrospectively and there was no comparison group to show the relative efficacy of this approach. The present study was conducted to address these concerns. METHODS: Perioperative pain and anxiety were assessed in 40 patients receiving forefoot surgery using either wide-awake local anesthesia or general anesthesia. Ratings were collected on the day of surgery using 11-point (0-10) numerical rating scales. RESULTS: Patients in the two anesthesia groups reported no differences in preoperative pain (p=0.500) or anxiety (p=0.820). Patients who received wide-awake local anesthesia reported lower levels of postoperative pain (p<0.001) and anxiety (p<0.001) than patients who received general anesthesia. They also reported little pain (M=0.17, SD=0.32) or anxiety (M=1.33, SD=1.74) during the operation. CONCLUSIONS: Results indicate that surgery with wide-awake local anesthesia is tolerated well by most patients, and that it may have some benefit compared to surgery with general anesthesia.

Wide-awake foot and ankle surgery: A retrospective analysis.

BACKGROUND: The "wide-awake" approach to foot and ankle surgery is characterized by a surgeon-administered mixture of local anesthetic and epinephrine. No tourniquet, sedation, or general anesthesia are required for surgery. This paper describes a retrospective survey of the initial patients to undergo wide-awake foot and ankle surgery at our center. METHODS: Thirty former wide-awake patients were surveyed about their perioperative anxiety, pain, and satisfaction. RESULTS: Twenty-seven of 30 patients (90%) completed the survey. Patients received a variety of forefoot, hindfoot, and lower leg procedures. In general, they reported a decrease in anxiety over the course of the perioperative period (p=0.005). Pain fell from the preoperative to the intraoperative period, then rose to preoperative levels during recovery (p<0.001). Most patients said that the surgery was better than expected (83%); would choose wide-awake surgery for a subsequent procedure (87%); and would recommend wide-awake surgery to someone who required surgery (88%). CONCLUSIONS: Results indicate that the wide-awake approach to foot and ankle surgery causes little discomfort to patients who receive many common procedures. The removal of hindfoot hardware under local anesthesia is contraindicated.

Intermediate to Long-Term Outcomes of Total Ankle Replacement with the Scandinavian Total Ankle Replacement (STAR).

BACKGROUND: The Scandinavian Total Ankle Replacement (STAR) prosthesis has been in clinical use since 1981, with investigational use in the U.S. since 1998. Few studies of the North American version of the STAR are available. This prospective cohort study analyzed intermediate to long-term outcomes of total ankle arthroplasty with use of the STAR prosthesis at two Canadian centers. METHODS: Consecutive patients who received the STAR prosthesis between 2001 and 2005 were enrolled at two large, urban teaching hospitals. Patients were annually evaluated clinically, and the Ankle Osteoarthritis Scale (AOS) and the Short Form (SF)-36 were administered. RESULTS: One hundred and eleven ankles underwent arthroplasty with the STAR prosthesis. One-half of the patients were male; the mean age was 61.9 ± 11.7 years. Sixty-eight of the ankles underwent a total of 121 additional procedures during ankle arthroplasty, including gastrocnemius release, subtalar arthrodesis, triple arthrodesis, tendoachilles lengthening, and removal of hardware. The mean duration of follow-up for all living patients without revision (seventy-three ankles) was 9.0 ± 1.0 years. Thirteen (12%) of the ankles required metal component revision at a mean of 4.3 ± 3.0 years (range, 0.6 to 10.2 years). Twenty (18%) of the prostheses underwent polyethylene bearing exchange, mostly due to fracture, at a mean of 5.2 ± 2.1 years (range, 1.5 to 9.3 years). Most (97%) of the revisions and exchanges occurred in patients with a diagnosis of primary, secondary, or posttraumatic osteoarthritis (p = 0.0003). The mean change from baseline to final follow-up was -36.5 ± 23.3 points for AOS pain, -38.6 ± 26.8 points for AOS disability, and 9.6 ± 10.3 points for the SF-36 physical component summary score. The SF-36 mental component summary score was unchanged. CONCLUSIONS: Intermediate patient-reported outcomes were good after ankle arthroplasty with the STAR prosthesis performed by experienced surgeons, and long-term outcomes demonstrated a 12% rate of metal component revision and 18% rate of polyethylene bearing failure. The revision rate was substantially higher among the first twenty ankles than among subsequent ankles, but the early ankles had nearly two years' longer follow-up than subsequent ankles. Additional study to elucidate possible reasons for polyethylene bearing failure is warranted. LEVEL OF EVIDENCE: Therapeutic Level IV. See Instructions for Authors for a complete description of levels of evidence.

Gait analysis in orthopedic foot and ankle surgery--topical review, part 1: principles and uses of gait analysis.

UNLABELLED: Gait analysis, the systematic study of human walking, is a field that has been studied for well over 100 years. With the technological and scientific advancements of the last several decades, there has been substantial improvement in our understanding of the mechanics of human walking. Particularly important has been the advancement in understanding of the differences between normal and pathological gait. The purpose of this paper is to review the principles of gait analysis, with a particular focus on the underlying methods and science. This will assist orthopedic foot and ankle surgeons in better understanding the methods and meaning of gait research and the publications that commonly appear in the orthopedic foot and ankle surgery literature. LEVEL OF EVIDENCE: Level V, expert opinion.

An analysis of the use of the Kellgren and Lawrence grading system to evaluate peritalar arthritis following total ankle arthroplasty.

BACKGROUND: The Kellgren and Lawrence grading system (KLGS) has been used throughout the literature for the radiographic staging of osteoarthritis (OA) of the peritalar joints. Despite its widespread use, the KLGS has never been validated for use in this clinical circumstance. The purpose of this study was to determine the inter- and intrarater reliability of the KLGS in the assessment of radiographic progression of OA in the peritalar joints following total ankle replacement (TAR). METHODS: One hundred twenty pre- and minimum 5-year postoperative weight-bearing lateral radiographs following 60 consecutive cases of TAR were utilized. Each individual film was considered separately for the purposes of this study. Of those films, 93 and 98 were found to have adequate visualization of the subtalar (STJ) and talonavicular (TNJ) joints, respectively. Three qualified reviewers graded the films according to the KLGS on 2 separate occasions, with 1 month separating the 2 readings. The results were analyzed for intra- and interobserver reliability. The degree of agreement was analyzed using the weighted kappa (κ(w)) statistic, Fleiss's kappa (Fleiss's κ), and percentage agreement RESULTS: Interrater agreements were moderate (κ(w) = 0.37 ± 0.06; Fleiss's κ = 0.21 ± 0.03) for the STJ to fair (κ(w) = 0.43 ± 0.06; Fleiss's κ = 0.25 ± 0.03) for the TNJ. Intrarater agreements for the STJ were moderate (mean κ(w) = 0.43 ± 0.07) and moderate for the TNJ as well (mean κ(w) = 0.46 ± 0.07). The reliability of the KLGS, although not originally designed for use in the setting of inflammatory arthropathy, was not notably affected when being used to grade inflammatory versus noninflammatory arthropathy. CONCLUSIONS: The KLGS is likely not a reliable tool for grading the degree of OA present in the peritalar joints prior to treatment and following TAR for research purposes. Using the KLGS in the setting of inflammatory arthritis versus OA did not produce any notable differences in the observed reliability. It is important to remember this has not been assessed in the clinical environment. Further work is required to determine the optimal method for assessment of peritalar OA. LEVEL OF EVIDENCE: Level II, prospective comparative study.

Role of patient information handouts following operative treatment of ankle fractures: a prospective randomized study.

BACKGROUND: Widespread evidence exists for directed patient information interventions (eg, pamphlets) in the setting of several orthopaedic conditions and interventions. Up until now, no study had assessed the role of these interventions in the management of patients following ankle fractures. METHODS: Between 2005 and 2007, 40 patients who suffered an operative ankle fracture were randomized to either a standard treatment group for an ankle fracture or an enhanced information group who received an American Academy of Orthopaedic Surgeons ankle fracture information pamphlet that explained postoperative routine at our institution and a physiotherapy handout depicting a standard protocol. Study participants were followed for 3 months clinically and radiographically. At the 6-week and 3-month intervals, study participants completed the Olerud-Molander Questionnaire and 2 questions regarding their level of satisfaction. The primary outcome measure was the Likert-scale-based survey question determining the level of satisfaction with the treating staff. RESULTS: Participants in the enhanced information group were more satisfied with treatment at 3 months (9.2 vs 6.3; P < .001). There were significant improvements in work/activity ability at 6 weeks (P = .01), but this advantage disappeared at 3 months (P = .24). No differences in postoperative complication rates were noted. CONCLUSIONS: Information enhancement in the form of pamphlets can be helpful in providing patients with accessible information in the postoperative period. While they do not seem to have a sustained impact on postoperative outcomes, handouts may enhance the interaction between staff and patient at postoperative visits, improving patient satisfaction. LEVEL OF EVIDENCE: Level I, appropriately powered randomized prospective cohort study.

Effective detection and management of low-velocity Lisfranc injuries in the emergency setting: principles for a subtle and commonly missed entity.

OBJECTIVE: To improve the ability of primary care physicians to recognize the mechanisms and common presentations of low-velocity Lisfranc injuries (LFIs) and to impart an improved understanding of the role of imaging and principles of primary care in low-velocity LFIs. SOURCES OF INFORMATION: A MEDLINE literature review was performed and the results were summarized, reviewing anatomy and mechanisms, clinical and imaging-based diagnoses, and management principles in the primary care setting. MAIN MESSAGE: Low-velocity LFIs result from various mechanisms and can have very subtle findings on clinical examination and imaging. A high degree of suspicion and caution are warranted when managing this type of injury. CONCLUSION: Although potentially devastating if missed, if a few treatment principles for low-velocity LFIs are applied from the initial presentation onward, outcomes from this injury can be optimized.