Percutaneous Ultrasound-Guided Tenotomy of the Iliotibial Band for Trochanteric Pain Syndrome: A Longitudinal Observational Study With One-Year Durability Results.

BACKGROUND: Upper lateral hip pain is a common complaint in adults and is referred to as greater trochanteric pain syndrome (GTPS) and is more prevalent among older women. This is a debilitating condition that could result in lower physical activity and quality of life, and higher unemployment rate. GTPS is a clinical diagnosis, and many cases improve with conservative medical management (CMM). However, there is still a gap between patients not responding to CMM and those who are not good surgical candidates. Thus, percutaneous ultrasound tenotomy (PUT) may be a valuable treatment option to limit this gap. OBJECTIVES: Demonstration of the one-year pain and functional outcomes, including sit to stand. SETTING: Academic tertiary care medical center. METHODS: Forty-eight consecutive patients with refractory trochanteric pain due to iliotibial band (ITB) tendinopathy. Fifty-six hips were treated; 8 patients underwent bilateral procedures. Electronic medical record review of consecutive patients who underwent ITB TENEX® was performed at Montefiore Medical Center from December 2019 to December 2021. Institutional guidelines recommended TENEX® for greater trochanteric pain refractory to conservative treatment and ultrasound (US) confirmed ITB tendinopathy (hypoechogenicity or thickened tendon > 6 mm). Pain level, as well as sit-to-stand, side-lying, and walking tolerance levels were evaluated at baseline preprocedure visit and one-year visit. Follow-up was performed by independent practitioners and corroborated by chart review. RESULTS: Numeric Rating Scale (NRS-11) improved by 4 points across all patients. Seventy percent of patients endorsed pain relief at one-year visit. Median preprocedure NRS-11 was 9. The reported median NRS-11at one year was 5 (Wilcoxon signed rank NRS-11 demonstrated a Z score of -6.042 with P < 0.001). One-year analysis among all patients revealed 57%, 78%, and 66% improvement in side-lying, sit-to-stand, and walking tolerance levels, respectively. LIMITATIONS: We believe that our results must be confirmed with a randomized control trial with a control arm and more patients included. CONCLUSIONS: PUT of the ITB using the TENEX® tissue remodeling device could be a safe and effective treatment for ITB tendinopathy-associated GTPS.

Erratum to "A Case of Titanium Pseudotumor and Systemic Toxicity After Total Hip Arthroplasty Polyethylene Failure" [Arthroplasty Today 6 (2020) 710-715].

[This corrects the article DOI: 10.1016/j.artd.2020.07.033.].

Telerounding Offers High Patient Satisfaction After Total Joint Arthroplasty.

BACKGROUND: Research in surgical fields other than orthopedics has demonstrated high patient satisfaction with non-traditional telerounding modalities. QUESTIONS/PURPOSES: We sought to determine patient satisfaction and Hospital Consumer Assessment of Healthcare Providers and Systems (HCAHPS) scores of patients who experienced telerounding in the post-operative period after undergoing total joint arthroplasty (TJA). METHODS: Fifty consecutive TJA patients were prospectively enrolled to receive telerounding. The patients were divided into two groups based on their satisfaction with telerounding. The HCAHPS scores of the patients who received telerounding were compared with 50 control patients. RESULTS: Overall, the telerounding cohort had a positive reaction to telerounding. Comparing patients who were highly satisfied to those who were dissatisfied with telerounding, younger patients were found to be more frequently satisfied with telerounding. Compared with patients who did not receive telerounding, patients who experienced telerounding rated the hospital higher on a 10-point scale were more likely to recommend the hospital to others, more frequently believed their physicians treated them with courtesy and respect, and more often believed their physicians always listened to them carefully. CONCLUSION: An overwhelming majority of our patients found telerounding using FaceTime enhanced their care while recovering post-operatively from TJA. Those patients were typically younger and had significantly higher HCAHPS scores, which potentially can enhance the physician-patient relationship.

Characterization of Hematopoiesis in Sickle Cell Disease by Prospective Isolation of Stem and Progenitor Cells.

The consequences of sickle cell disease (SCD) include ongoing hematopoietic stress, hemolysis, vascular damage, and effect of chronic therapies, such as blood transfusions and hydroxyurea, on hematopoietic stem and progenitor cell (HSPC) have been poorly characterized. We have quantified the frequencies of nine HSPC populations by flow cytometry in the peripheral blood of pediatric and adult patients, stratified by treatment and control cohorts. We observed broad differences between SCD patients and healthy controls. SCD is associated with 10 to 20-fold increase in CD34dim cells, a two to five-fold increase in CD34bright cells, a depletion in Megakaryocyte-Erythroid Progenitors, and an increase in hematopoietic stem cells, when compared to controls. SCD is also associated with abnormal expression of CD235a as well as high levels CD49f antigen expression. These findings were present to varying degrees in all patients with SCD, including those on chronic therapy and those who were therapy naive. HU treatment appeared to normalize many of these parameters. Chronic stress erythropoiesis and inflammation incited by SCD and HU therapy have long been suspected of causing premature aging of the hematopoietic system, and potentially increasing the risk of hematological malignancies. An important finding of this study was that the observed concentration of CD34bright cells and of all the HSPCs decreased logarithmically with time of treatment with HU. This correlation was independent of age and specific to HU treatment. Although the number of circulating HSPCs is influenced by many parameters, our findings suggest that HU treatment may decrease premature aging and hematologic malignancy risk compared to the other therapeutic modalities in SCD.

A Case of Titanium Pseudotumor and Systemic Toxicity After Total Hip Arthroplasty Polyethylene Failure.

We describe the case of a 57-year-old female who underwent bilateral ceramic-on-polyethylene total hip arthroplasties performed in 2015. She presented to us in 2018 with headaches, fatigue, and right hip pain 5 months after an atraumatic right polyethylene liner failure for which she did not seek treatment. She was found to have imaging consistent with an adverse local tissue reaction and massive pseudotumor formation. During revision surgery, fracture of the acetabular liner was noted, with ceramic head wear through the titanium cup. In the months after her debridement and prosthesis revision, the patient continued to complain of systemic symptoms including weakness, fatigue, headaches, and vision problems. Serum titanium levels were found to be 100 times higher than normal. This case serves as a rarely reported example of titanium toxicity and titanium pseudotumor formation in the setting of polyethylene failure.

Nonsurgical Treatment of Aseptic Periprosthetic Gout Flare of the Knee: A Report of 2 Cases.

CASE: Gout is a rarely reported cause of a painful knee following total knee arthroplasty, but it can mimic infection in its symptomatology and workup. Two individuals who had previously undergone a knee replacement and had a history of gout had symptoms of infection. These patients presented with knee warmth and effusion, and they had elevated inflammatory markers and synovial cell counts. In both cases, there was a good response to medication, and surgery was avoided. CONCLUSION: Although simultaneous infection can occur, aseptic periprosthetic gout should be considered in individuals with a known history of gout, in those with a good response to anti-gout medication, and when there is an otherwise negative workup for infection.