Complications following single-stage bilateral total knee arthroplasty and unilateral procedures: experience of a high-volume community hospital.

INTRODUCTION: The safety of single-stage bilateral total knee arthroplasty (SSBTKA) compared to unilateral total knee arthroplasty (TKA) remains controversial. The present study compares the 90-day postoperative complications encountered following SSBTKA and unilateral TKA in an unselected cohort of patients performed at a high-volume community hospital. MATERIALS AND METHODS: The perioperative electronic medical records of an unselected consecutive cohort of 1032 patients (1345 knees) having undergone unilateral or SSBTKA were reviewed. Ninety-day postoperative complications or need for additional procedures were compared between unilateral and SSBTKA groups. RESULTS: A total of 719 and 313 patients underwent unilateral and SSBTKA, respectively. There were no significant differences in age or BMI between groups. Patients undergoing SSBTKA were more likely to be male (p = 0.019), have longer lengths of stay (p < 0.001) and were less likely to discharge directly home (13.1%) compared to unilateral patients (80.9%) (p < 0.001). Patients undergoing SSBTKA were more likely to require a transfusion (14.7%) compared to unilateral patients (2.2%) (p < 0.001). Interestingly, mortality rate following unilateral TKA (1.7%) was significantly higher than SSBTKA (0.0%) (p = 0.013). There were no significant differences regarding other complications or need for additional procedures within 90 days following surgery. CONCLUSION: SSBTKA did not result in greater complications when compared to unilateral TKA in this particular cohort. As expected, transfusion rates will likely be higher and there will be a greater need for acute inpatient care following surgery for SSBTKA patients.

Higher intra-operative narcotic requirements and weakness with quadratus lumborum compared to paravertebral nerve block for total hip arthroplasty.

BACKGROUND: This was a prospective single-blinded study comparing the peri-operative opioid consumption and motor weakness for patients undergoing total hip arthroplasty (THA) with either a Quadratus Lumborum Type 3 Nerve Block (QLB) or a Paravertebral Nerve Block (PVB). METHODS: A consecutive cohort of patients undergoing elective anterior approach (AA) THA by a single high-volume surgeon were randomly assigned an anesthesiologist by the charge anesthesiologist. One anesthesiologist performed all QLBs, and the other six anesthesiologists performed the PVBs. Pertinent data include prospectively collected qualitative surveys from blinded medical personnel, floor nurses, and physical therapists as well as demographic information and post-operative complications. RESULTS: Overall, 160 patients were included in the study divided equally between the QLB and PVB groups. The QLB group had a statistically higher peri-operative narcotic use (p < 0.001), greater intra-operative peak systolic blood pressure (p < 0.001) and respiratory rate (p < 0.001), and higher incidence of post-operative lower extremity muscle weakness (p = 0.040). There were no statistical group differences for floor narcotic use, post-operative hemoglobin levels or hospital length of stay. CONCLUSION: The QLB required greater intraoperative narcotic use and resulted in greater post-operative weakness, however provided nearly equal post-operative pain management and did not adversely affect rapid discharge success. LEVEL OF EVIDENCE: III, Non-randomized controlled cohort/follow-up study.

Reducing transfusion in hip arthroplasty: tranexemic acid diminishes influence of anesthesia administered.

BACKGROUND: The risk of transfusion following total hip arthroplasty (THA) continues to be problematic. The best choice of anesthesia (spinal vs general) and impact of tranexamic acid (TXA) use in reducing transfusions following surgery remain unclear. Therefore, the purpose of this study was to compare rates of blood transfusion following THA via the anterior approach using three different anesthesia protocols with and without TXA. MATERIALS AND METHODS: This retrospective review included 1399 patients (1659 hips), receiving spinal anesthesia (SA) without (248 patients) and with TXA (77 patients), general anesthesia (GA) without (151 patients) and with TXA (171) and general anesthesia with paravertebral block (GA-PVB) and TXA (748 patients). All procedures were performed by a single surgeon. Chi-Squared tests and logistic regression were performed to evaluate the rate and risks of transfusion between groups. RESULTS: Without TXA, transfusion rate with GA (24.5%) was higher than SA (13.4%) (p = 0.004). With TXA, there was no difference in transfusion rates between GA (4.6%), SA (3.9%) or GA-PVB (4.0%). The multivariable regression revealed bilateral (Odds Ratio (OR): 6.473; p < 0.001), female (OR: 2.046; p = 0.004), age (OR: 1.028; p = 0.012) and pre-operative anemia (OR: 2.604; p < 0.001) as increasing the risk of transfusion while use of TXA (OR: 0.168; p < 0.001) significantly reduced transfusion risk. CONCLUSION: The use of TXA during THA via the anterior approach removed the influence of anesthesia type regarding risk of transfusion. The use of TXA may reverse presumed disadvantages of GA alone, potentially facilitating rapid discharge following surgery.

Association of Depression and Anxiety With Expectations and Satisfaction in Foot and Ankle Surgery.

INTRODUCTION: Mental health diagnoses involving depression or anxiety are common and can have a dramatic effect on patients with musculoskeletal pathologies. In orthopaedics, depression/anxiety (D/A) is associated with worse postoperative patient-reported outcomes. However, few studies have assessed the effect of D/A on expectations and satisfaction in foot and ankle patients. METHODS: Adult patients undergoing elective foot and ankle surgery were prospectively enrolled. Preoperatively, patients completed the eight-item Patient Health Questionnaire Depression Scale, Generalized Anxiety Disorder Screener-7, Foot and Ankle Outcome Score (FAOS), and Expectations Survey. At 2 years postoperatively, surveys including satisfaction, improvement, and fulfillment of expectations were administered. Fulfillment of expectations (fulfillment proportion) and FAOS scores were compared between patients with D/A and non-D/A patients. RESULTS: Of 340 patients initially surveyed, 271 (80%) completed 2-year postoperative expectations surveys. One in five patients had D/A symptoms. Preoperatively, D/A patients had greater expectations of surgery (P = 0.015). After adjusting for measured confounders, the average 2-year postoperative fulfillment proportion was not significantly lower among D/A compared with non-D/A (0.86 versus 0.78, P = 0.2284). Although FAOS scores improved postoperatively for both groups, D/A patients had significantly lower preoperative and postoperative FAOS scores for domains of symptoms, activity, and quality of life (P < 0.05 for all). D/A patients reported less improvement (P = 0.036) and less satisfaction (P = 0.005) and were less likely willing to recommend surgery to others (P = 0.011). DISCUSSION: Patients with D/A symptoms had higher preoperative expectations of surgery. Although D/A patients had statistically similar rates of fulfillment of expectations compared with non-D/A patients, they had markedly lower FAOS scores for domains of symptoms, activity, and quality of life. D/A patients also perceived less improvement and were more often dissatisfied with their outcomes. These findings should not dissuade providers from treating these patients surgically but rather emphasize the importance of careful patient selection and preoperative expectation management. LEVEL OF EVIDENCE: Level III; retrospective review of prospective cohort study.

An Unusual Foreign Body-Caused Chondral Lesion of the Talar Dome: A Case Report.

CASE: A patient presented with chronic ankle pain and instability. Imaging revealed a talar osteochondral lesion as well as intra-articular loose bodies. Intraoperatively, an unusual, well-demarcated chondral defect was found. A glass fragment was also identified in the joint. The patient subsequently recalled a minor ankle laceration from a shattered glass bottle, suggesting unrecognized foreign body retention as the cause of the cartilage damage. CONCLUSION: This is the first reported example of glass migrating into the ankle joint, leading to significant cartilage damage. This case highlights the elusive nature of foreign bodies and the difficulty of diagnosis with standard imaging.

Health Literacy and Recall of Postoperative Instructions in Patients Undergoing the Lapidus Procedure.

BACKGROUND: Active participation in patients' own care is essential for success after Lapidus procedure. Poor health literacy, comprehension, and retention of patient instructions may be correlated with patient participation. Currently, there is no objective measure of how well patients internalize and retain instructions before and after a Lapidus procedure. We performed this study to assess how much of the information given to patients preoperatively was able to be recalled at the first postoperative visit. METHODS: All patients between ages 18 and 88 years undergoing a Lapidus procedure for hallux valgus by the senior author between June 2016 and July 2018 were considered eligible for inclusion. Patients were excluded if they had a history of previous bunion surgery or if the procedure was part of a flatfoot reconstruction. Patients were given written and verbal instructions at the preoperative visit. Demographic and comprehension surveys were administered at their first visit approximately 2 weeks postoperatively. A total of 50 patients, of which 42 (84%) were female and 43 (86%) had a bachelor's degree or higher, were enrolled. RESULTS: Mean overall score on the comprehension survey was 6.2/8 (±1.2), mean procedure subscore was 1.8/3 (±0.64), and mean postoperative protocol subscore was 4.4/5 (±0.8). The most frequently missed question asked patients to identify the joint fused in the procedure. CONCLUSION: Although comprehension and retention of instructions given preoperatively was quite high in our well-educated cohort, our findings highlight the importance of delivering clear instructions preoperatively and reinforcing these instructions often. LEVEL OF EVIDENCE: Level II, prospective cohort study.

Fulfillment of Expectations After Orthopedic Foot and Ankle Surgery.

BACKGROUND: To date, no study has assessed fulfillment of patients' expectations after foot and ankle surgery. This study aimed to validate a method of assessing expectation fulfillment in foot/ankle patients postoperatively. METHODS: Preoperatively, patients completed the expectations survey, consisting of 23 questions for domains including pain, ambulation, daily function, exercise, and shoe wear. At 2 years postoperatively, patients answered how much improvement they received for each item cited preoperatively. A fulfillment proportion (FP) was calculated as the amount of improvement received versus the amount of improvement expected. The FP ranges from 0 (no expectations fulfilled), to between 0 and 1 (expectations partially fulfilled), to 1 (expectations met), to greater than 1 (expectations surpassed). Receiver operating characteristic (ROC) curves and areas under the curve (AUCs) with 95% confidence intervals (CIs) were used to compare the expectations survey to other outcome surveys, including Foot and Ankle Outcome Score, improvement, overall fulfillment, Delighted-Terrible scale, and satisfaction. RESULTS: Of the 271 patients (mean age 55.4 years, mean BMI 27.5, 65% female), 34% had expectations surpassed (FP >1), 4% had expectations met, 58% had expectations partially fulfilled (FP between 0 and 1), and 5% had no expectations met. The mean FP was 0.84 ± 0.41 (range 0-3.13), indicating partially fulfilled expectations. FP correlated significantly with all outcome measures (P ≤ .007). FP was associated most closely with satisfaction (r = 0.66 [95% CI 0.57-0.75]; AUC = 0.92 [95% CI 0.88-0.96]; P < .001) and improvement (r = 0.73 [95% CI 0.64-0.81]; AUC = 0.94 [95% CI 0.91-0.96]; P < .001). Based on the associations with satisfaction and improvement outcomes, a clinically important proportion of expectations fulfilled is 0.68, with sensitivity 0.85-0.90 and specificity 0.84-0.86. CONCLUSION: The proportion of expectations fulfilled is a novel patient-centered outcome that correlated with validated outcome measures. The expectations survey may be used by surgeons to counsel patients preoperatively and also to assess patients' results postoperatively. LEVEL OF EVIDENCE: Level II, prospective comparative series.

Assessing the Ankle Joint Line Level Before and After Total Ankle Arthroplasty With the "Joint Line Height Ratio".

BACKGROUND: Restoring the joint line is an important principle in total knee arthroplasty. However, the effect of joint line level on patient outcomes after total ankle arthroplasty (TAA) remains unclear, as there is no established method for measuring ankle joint level in TAA. The objective of this study was to develop a reliable radiographic ankle joint line measurement method and to compare ankle joint line level measured pre-TAA, post-TAA, and in nonarthritic ankles. METHODS: A total of 112 radiographic sets were analyzed. Each set included weightbearing anteroposterior radiographs of the operative ankle taken preoperatively, 1-year postoperatively, and of the contralateral ankle. Measurements of vertical intermalleolar distance (VIMD) and vertical joint line distance (VJLD) at pre-TAA, post-TAA, and of the contralateral ankle were recorded by 2 authors on 2 separate occasions. The ratio of VJLD to VIMD was defined as the joint line height ratio (JLHR). Reliability of measurements and correlation between VIMD and VJLD were assessed. Pre-TAA, nonarthritic contralateral ankle, and post-TAA JLHR were compared and considered significantly different if P <.05. RESULTS: The inter- and intrarater reliability of radiographic measurements was excellent (r > 0.9). There were strong positive correlations of VIMD and VJLD, r = 0.809 (pre-TAA)/0.756 (post-TAA), P < .001. Mean (SD) pre-TAA, nonarthritic contralateral ankle, and post-TAA JLHRs were 1.54 (0.31), 1.39 (0.26), and 1.62 (0.49), respectively. Pre- and post-TAA JLHRs were significantly higher compared to the nonarthritic contralateral ankle (P < .05). JHLR was not significantly different between pre- and post-TAA (P = .15). CONCLUSION: The JLHR was reliable and could be a clinically applicable method for assessing ankle joint line level in patients undergoing TAA. End-stage ankle arthritis demonstrated elevated joint line level compared with nonarthritic ankles, and the joint line level post-TAA remained elevated compared with nonarthritic ankles. Further studies are needed to understand the effect of joint line elevation on clinical outcomes after TAA. LEVEL OF EVIDENCE: Level III, retrospective comparative study.