Predicting Septic Arthritis in the Setting of Crystalline Arthropathy in the Native Joint Using Laboratory Data.

Background: Septic arthritis is an orthopedic emergency. Diagnosis is difficult in patients with concomitant crystalline arthropathy (gout or pseudogout). The symptomatology of crystal arthritis mimics septic arthritis, clouding clinical diagnosis. Arthrocentesis and synovial fluid analysis are the standard diagnostic tests for both pathologies. Crystals on microscopy are diagnostic of crystal arthritis, however their presence does not rule out septic arthritis. Septic arthritis is diagnosed by positive microbiology culture. Though septic arthritis is associated with elevated synovial total nucleated count (TNC), TNC elevations can also occur with gout. The literature suggests that a TNC count of > 50,000 cells in a crystal-positive joint should raise suspicion for concurrent septic arthritis, however data is limited. Further diagnostic indicators are needed to help clinicians promptly identify crystal positive septic arthritis as the treatments and prognoses are different. Methods: Patients were retrospectively identified who had arthrocentesis of a native joint positive for monosodium urate (MSU) and/or (CPPD) crystals. Laboratory data was collected including synovial fluid cultures, total nucleated cell count (TNC), percent polymorphic neutrophils (%PMN), and crystal analysis; and serum CRP, ESR, and white blood cell count (WBC). Statistical analysis performed using Spearman correlation, Univariate-Fischer's exact and Wilcoxon tests, and multivariate analysis. Results: 442 joints identified with positive CPPD and/or MSU crystals, 31% female, 69% male. Of 442 aspirates, 58 had positive cultures. Patients were more likely to have positive cultures if synovial TNC > 50,000 (odds ratio 7.7), CRP > 10 mg/dL (OR 3.2), PMN > 90% (OR 2.17), and if the patient was female (OR 1.9), all were statistically significant with p < 0.05. There were 55 patients who underwent irrigation and debridement based on clinical suspicion or a positive gram stain, 37 of these ultimately had a positive culture (67%), the remaining 18 had negative cultures. Conclusion: Results are consistent with the literature, a TNC > 50,000 warrants a high suspicion for concurrent septic arthritis and should prompt providers to critically evaluate other patient laboratory data. Results further suggests that a patient with positive crystals, synovial TNC > 50,000 cells, PMN > 90%, and serum CRP > 10mg/dL is at high risk for having a concurrent septic arthritis and may warrant urgent irrigation and debridement and antibiotic therapy. This data serves as a supporting to develop an infection risk calculator for crystal positive septic arthritis. Level of Evidence: III.

Outcomes of Arthroscopic Decompression of the Anterior Inferior Iliac Spine: A Systematic Review and Meta-analysis.

BACKGROUND: Anterior inferior iliac spine (AIIS) impingement has been increasingly recognized as a source of extra-articular impingement and hip pain. However, no aggregate data analysis of patient outcomes after AIIS decompression has been performed. PURPOSE: To evaluate outcomes after arthroscopic AIIS decompression. STUDY DESIGN: Meta-analysis; Level of evidence, 4. METHODS: A systematic review was performed according to the PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) guidelines. PubMed, EMBASE, and Cochrane Central Register of Controlled Trials were queried for all English-language studies reporting outcomes of arthroscopic AIIS decompression performed in isolation or in conjunction with hip impingement correction surgery. After screening, 10 articles were included. The indications for AIIS decompression were recorded, and weighted mean improvements in patient-reported outcome (PRO) scores, complication rates, and revision rates were calculated. RESULTS: A total of 547 patients (311 women; 57%) were identified, with a total of 620 operative hips. The mean age was 28.42 ± 5.6 years, and the mean follow-up was 25.22 ± 11.1 months. A total of 529 hips (85%) underwent AIIS decompression, 530 hips (85%) underwent femoral osteochondroplasty, and 458 hips (74%) underwent labral repair. Of the patients, 13% underwent bilateral AIIS decompression. The mean modified Harris Hip Score improved from 61.3 ± 6.9 to 88.7 ± 4.7 postoperatively (change, 27.4 ± 5.7 points; P < .001), the Hip Outcome Score-Activities of Daily Living improved from 67.2 ± 10.6 to 91.1 ± 3.2 postoperatively (change, 24.0 ± 8.0 points; P = .001), and the Hip Outcome Score-Sports Specific Subscale improved from 36.8 ± 19.2 to 82.8 ± 3.8 postoperatively (change, 46.0 ± 18.2 points; P = .002). The pooled risk of postoperative complications was 1.1% (95% CI, 0.1%-2.1%), and the pooled risk of needing revision surgery was 1.0% (95% CI, 0.1%-2.0%). No complication was directly attributed to the AIIS decompression portion of the procedure. CONCLUSION: PROs improved significantly after hip arthroscopy with AIIS decompression, with a low risk of postoperative complications and subsequent revision surgeries. Failure to identify extra-articular sources of hip pain in outcomes of femoroacetabular impingement syndrome, including from the AIIS, could lead to poorer outcomes and future revision surgery.

Symptom and Quality of Life Improvements After Pelvic Floor Physical Therapy in a Clinical Population of Women With Pelvic Pain and Other Symptoms.

OBJECTIVES: This study aimed to evaluate changes in validated symptom scores at intake and discharge in women undergoing pelvic floor physical therapy (PFPT) for pain and other pelvic floor symptoms. METHODS: Consecutive women starting PFPT during 1 year were reviewed. History, demographics, and Pelvic Floor Distress Inventory Questionnaire - Short Form 20 (PFDI) total and domain scores (Pelvic Organ Prolapse Distress Inventory-6, Urogenital Distress Inventory-6, Colorectal-Anal Distress Inventory-8), Pelvic Floor Impact Questionnaire (PFIQ-7), and pain levels on a numeric rating scale (NRS) were collected at intake and discharge. Data were analyzed with descriptive statistics and sign tests. RESULTS: Of 474 women, mean age was 50.3 ± 16.7 years (range, 18-87 years) and the most common indication for PFPT was pelvic pain (208/474; 43.9%). In women with complete data, pretreatment to posttreatment median scores improved on the PFDI (77.3 vs 41.8; P < 0.0001), Urogenital Distress Inventory (37.5 vs 16.0; P < 0.0001), and PFIQ (58.0 vs 19.0; P < 0.0001), and the minimal clinically important difference was met for the PFDI, PFIQ, and Colorectal-Anal Distress Inventory. Women with primarily pelvic pain (n = 208) achieved significant improvements in PFDI, PFIQ, and NRS scores (P < 0.0001 for all) as well as the minimal clinically important difference for these measures. Pain patients with a history of pelvic surgery (n = 50) also had significant improvements in PFIQ and NRS but not PFDI scores. CONCLUSIONS: Most women referred to PFPT demonstrated symptom improvements as measured by validated instruments.

Treatment of Patella Fractures.

Patella fractures comprise 1% of all fractures. Treatment options vary based on fracture displacement, classification, and patient factors. Traditionally, nonoperative treatment has been reserved for nondisplaced fractures. Many operative treatments are available with differing indications and levels of success. Tension band constructs have been the most commonly employed approach to fixation, with cerclage wiring for comminuted fractures. Recently, plate fixation of patella fractures has become more popular. Plating constructs offer a low-profile design with stable fixation, allowing for earlier mobilization and potentially improved functional outcomes. Data regarding the long-term outcomes of plating techniques are limited, and further studies are needed. [Orthopedics. 2018; 41(6):e747-e755.].

Polyethylene in total knee arthroplasty: Where are we now?

Polyethylene (PE) remains the gold standard for the articulating surface in hip and knee arthroplasty. To increase arthroplasty longevity and improve wear resistance, newer versions of PE have been designed with resultantly different wear properties. Highly cross-linked polyethylene (HXLPE) is used in total hip arthroplasty with excellent outcomes; however, its use in total knee arthroplasty (TKA) remains conflicting. This review summarizes biomechanical and wear properties, clinical outcomes, and cost of polyethylene inserts in TKA. Simulation studies have convincingly shown decreased wear and oxidation rates with HXLPE when compared to conventional polyethylene (CPE). Registry results have been conflicting, and short- to midterm clinical studies have not demonstrated a significant difference between HXLPE and CPE. The cost of HXLPE inserts is higher than CPE. Long-term clinical data are lacking and further studies are warranted to evaluate the role of HXLPE in TKA.

Primary Caregiver Perception of Pain Control following Pediatric Adenotonsillectomy: A Cross-Sectional Survey.

OBJECTIVES: To (1) review pain medications prescribed following pediatric adenotonsillectomy (T&A), (2) identify pain medications reported to be helpful, and (3) compare parent-reported outcomes among various combinations of pain medications. STUDY DESIGN: Case series with planned data collection. SETTING: Multihospital network. SUBJECTS AND METHODS: The primary caregivers of children aged 1 to 18 years who underwent isolated T&A from June to December 2014 were contacted 14 to 21 days after surgery. Data collected included pain medications prescribed, medications most helpful in controlling pain, and duration that pain medication was required. Parents rated their children's pain on postoperative days 2, 3, 7, and 14 and reported the time to resumption of normal diet/activity, as well as any hospital return visits. RESULTS: The study cohort included 672 subjects of 1444 potential participants (46% response rate). The mean age of the patients was 7.9 ± 3.6 years. Narcotics were prescribed in 71.9%, and 70.4% were told to use ibuprofen. Children who took ibuprofen alone were significantly younger (P < .001). Pain was significantly less on postoperative days 2 and 3 in the ibuprofen-only group as compared with the groups taking narcotics only (P < .001) and ibuprofen with narcotics (P = .002). Those taking ibuprofen alone returned to normal activity (P < .001) and diet (P = .026) sooner than those taking ibuprofen with narcotics. No difference was seen in pain control on subgroup analysis comparing oxycodone and hydrocodone. CONCLUSIONS: For pediatric T&A, significant variation exists in the management of postoperative pain. Parents of children given ibuprofen reported less pain than those given narcotics with and without ibuprofen. Further studies are needed to identify the optimal pain regimen for children after T&A.