Background Better muscular recovery of the extensor mechanism after TKA is claimed by femoral designs based on a sagittal single radius. Questions/purposes We aimed to compare postoperative knee performance through the Knee Society scores, flexor and extensor muscle function, stability, and gait of a series of patients receiving a posterior stabilized, cemented TKA, with a single-radius femoral design. Methods We compared a series of patients treated with a single-radius femoral design TKA to a simultaneous series of patients receiving a multiradius femoral design. Both groups were similar in demographics and preoperative Knee Society scores. The clinical pathways were identical. Outcome assessment included Knee Society scores, isokinetic assessment, stabilometry, and gait cycle analysis. ResultsWe observed higher functional Knee Society scores (86.6 ± 1.89 versus 80.3 ± 1.90), fewer physiotherapy sessions (19.9 ± 4.65 versus 22.2 ± 3.34), and less time with two crutches (3.5 ± 1.2 versus 5.2 ± 1.04 weeks) for patients receiving the single-radius design. Isokinetic evaluation showed decreased flexion peak torque (40.3 ± 7.9 versus 48.7 ± 9.6), increased extension peak torque (77.2 ± 16.1 versus 69.1 ± 14.4), and lower flexor/ extensor ratio (0.5 ± 0.08 versus 0.7 ± 0

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Introduction: Colorectal cancer is the second leading cause of cancer-related death in the US; complete surgical resection is the only curative treatment for non-metastatic colorectal cancer (NMCC). Postoperative ileus (POI) frequently increases patient morbidity and healthcare costs. Enhanced recovery after surgery (ERAS) protocol is the standard of care in most institutions and has been shown to reduce postoperative complications, but there is no a completely effective treatment for this condition. Studies suggest that electroacupuncture (EA) can improve gastrointestinal tract function after surgery. Objective: We aim to determine if including EA to the standard treatment of POI decreases the time to the first defecation, enhancing the return of normal bowel function after colon resection for NMCC. Methods: We propose a phase II, single-center, randomized, triple-blinded, sham-controlled trial with two parallel arms and a 1:1 allocation ratio. Patients 40-80 years of age diagnosed with NMCC scheduled to undergo laparoscopic surgery for colon cancer resection will be included. The arms will be EA + standard treatment and sham EA + standard treatment. The standard treatment will follow the ERAS protocol. Discussion: This will be the first randomized clinical trial to evaluate the impact of using EA along with the ERAS protocol for POI. This intervention may reduce patient morbidity and improve healthcare costs associated with the disease.

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