{"claims": [{"text": "Patient presented with muscle strength graded as 4 in bilateral forearms and upper arms, and grade 0 in bilateral hands and lower extremities preoperatively.", "quote_or_locator": "Section 2.1: 'Muscle strength was graded as 4 in bilateral forearms and upper arms, 0 in bilateral hands and lower extremities.'"}, {"text": "Surgery was performed on July 18, 2025, and took 3 hours and 40 minutes with 50 milliliters of intraoperative blood loss.", "quote_or_locator": "Section 2.2: 'The total operative time was 3 h and 40 min, with an estimated intraoperative blood loss of 50 mL.'"}, {"text": "Eight cortical electrodes were implanted epidurally at the precentral and postcentral gyri.", "quote_or_locator": "Section 2.2: 'brain–computer interface electrodes were fixed epidurally at the precentral and postcentral gyri, respectively' and Section 3.1.2 lists 'cortical electrode kit (including cortical electrodes...)' with 8 channel impedances measured at activation."}, {"text": "Normal E E G signals were acquired immediately after electrode implantation, confirming technical success.", "quote_or_locator": "Section 2.2: 'Normal electroencephalographic (EEG) signals were acquired immediately after electrode implantation, confirming the technical success of the procedure.'"}, {"text": "Device was activated on August 13, 2025.", "quote_or_locator": "Section 2.2: 'The device was activated on August 13, 2025, at which time all impedance values were within normal limits.'"}, {"text": "At device activation, channel impedances were 841, 976, 886, 732, 774, 926, 891, and 803 ohms.", "quote_or_locator": "Section 2.2: 'The channel impedances were measured as 841 Ω, 976 Ω, 886 Ω, 732 Ω, 774 Ω, 926 Ω, 891 Ω, and 803 Ω.'"}, {"text": "At 6-month follow-up, A R A T grip scores were 6 points for left hand and 4 points for right hand, with total scores of 11 points for left hand and 8 points for right hand.", "quote_or_locator": "Section 2.2: 'At the 6-month follow-up, device impedance remained normal... And the ARAT scores were 6 points for left-hand grip and 4 points for right-hand grip, with total scores of 11 points for the left hand and 8 points for the right hand.'"}, {"text": "At 6-month follow-up, channel impedances were 1,490, 1,646, 1,626, 1,489, 1,688, 1,698, 1,625, and 1,559 ohms.", "quote_or_locator": "Section 2.2: 'At the 6-month follow-up, device impedance remained normal, with channel impedances of 1,490 Ω, 1646 Ω, 1626 Ω, 1489 Ω, 1688 Ω, 1698 Ω, 1625 Ω, and 1,559 Ω.'"}, {"text": "No adverse events occurred following brain-computer interface implantation, and patient reported high satisfaction.", "quote_or_locator": "Section 2.2: 'No adverse events occurred following the brain–computer interface implantation, and the patient reported high satisfaction.'"}, {"text": "Patient underwent C3–6 posterior laminectomy, laminoplasty, spinal nerve decompression, posterolateral bone fusion, and pedicle screw fixation from C2 to C7 on January 19, 2023.", "quote_or_locator": "Section 2.1: 'On January 19, 2023, he underwent C3–6 posterior laminectomy, laminoplasty, spinal nerve decompression, posterolateral bone fusion with autologous and allogeneic grafts, and pedicle screw fixation from C2 to C7 under general anesthesia.'"}, {"text": "Patient was discharged on July 26, 2025, for home-based rehabilitation.", "quote_or_locator": "Section 2.2: 'The patient was discharged on July 26, 2025, for home-based rehabilitation.'"}, {"text": "Preoperative psychological assessment using Huaxi Emotional-index showed patient scored 11 points, indicating mild negative emotions.", "quote_or_locator": "Section 3.1.1: 'The patient scored 11 points, indicating mild negative emotions.'"}, {"text": "Cefazolin sodium 1 gram was intravenously infused 0.5–1 hour before surgery, with additional dose at 3 hours after incision, and continued for 4–6 hours postoperatively.", "quote_or_locator": "Section 3.2.2: 'Cefazolin sodium (1 g) was intravenously infused 0.5–1 h before surgery, with an additional dose administered 3 h after incision. Antibiotic administration was continued for 4–6 h postoperatively after the patient returned to the ward.'"}, {"text": "Patient developed pain with V A S score of 6 points at cranial surgical site in early morning after surgery, relieved to V A S score of 2 points one hour after loxoprofen sodium 60 mg.", "quote_or_locator": "Section 3.3.1: 'The patient developed pain at the cranial surgical site in the early morning after surgery, with a Visual Analog Scale (VAS) score of 6 points... 60 mg of loxoprofen sodium tablets were administered orally. The pain was relieved 1 h later, with a VAS score of 2 points.'"}, {"text": "Authors acknowledge that long-term electrode functional stability and host tissue biocompatibility necessitate extended follow-up beyond current observation window.", "quote_or_locator": "Section 4: 'critical issues pertaining to long-term electrode functional stability and host tissue biocompatibility necessitate extended follow-up beyond the current observation window.'"}, {"text": "Authors state that generalizability of perioperative management strategy to S C I patients with varying injury characteristics warrants cautious interpretation due to single-case limitation.", "quote_or_locator": "Section 4: 'given the inherent limitations of a single-case report, the generalizability of the perioperative management strategy to SCI patients with varying injury characteristics warrants cautious interpretation.'"}], "prompt_version": "p1.0", "verdicts": [{"claim": "Patient presented with muscle strength graded as 4 in bilateral forearms and upper arms, and grade 0 in bilateral hands and lower extremities preoperatively.", "verdict": "distorted", "evidence": "Section 2.1: 'Muscle strength was graded as 4 in bilateral forearms and upper arms, 0 in bilateral hands and lower extremities.'", "note": "The source states grade 0 in 'bilateral hands and lower extremities' but the claim separates these into two distinct anatomical regions. The source text does not explicitly confirm grade 0 in lower extremities; it groups hands and lower extremities together. The claim's parsing suggests separate assessment of hands vs. lower extremities, which is not clearly delineated in the source."}, {"claim": "Surgery was performed on July 18, 2025, and took 3 hours and 40 minutes with 50 milliliters of intraoperative blood loss.", "verdict": "supported", "evidence": "Section 2.2: 'The total operative time was 3 h and 40 min, with an estimated intraoperative blood loss of 50 mL.'", "note": null}, {"claim": "Eight cortical electrodes were implanted epidurally at the precentral and postcentral gyri.", "verdict": "supported", "evidence": "Section 2.2: 'brain–computer interface electrodes were fixed epidurally at the precentral and postcentral gyri, respectively' and Section 3.1.2: 'implantable cortical electrode kit (including cortical electrodes...)' with 8 channel impedances measured at activation.", "note": null}, {"claim": "Normal EEG signals were acquired immediately after electrode implantation, confirming technical success.", "verdict": "supported", "evidence": "Section 2.2: 'Normal electroencephalographic (EEG) signals were acquired immediately after electrode implantation, confirming the technical success of the procedure.'", "note": null}, {"claim": "Device was activated on August 13, 2025.", "verdict": "supported", "evidence": "Section 2.2: 'The device was activated on August 13, 2025, at which time all impedance values were within normal limits.'", "note": null}, {"claim": "At device activation, channel impedances were 841, 976, 886, 732, 774, 926, 891, and 803 ohms.", "verdict": "supported", "evidence": "Section 2.2: 'The channel impedances were measured as 841 Ω, 976 Ω, 886 Ω, 732 Ω, 774 Ω, 926 Ω, 891 Ω, and 803 Ω.'", "note": null}, {"claim": "At 6-month follow-up, ARAT grip scores were 6 points for left hand and 4 points for right hand, with total scores of 11 points for left hand and 8 points for right hand.", "verdict": "supported", "evidence": "Section 2.2: 'And the ARAT scores were 6 points for left-hand grip and 4 points for right-hand grip, with total scores of 11 points for the left hand and 8 points for the right hand.'", "note": null}, {"claim": "At 6-month follow-up, channel impedances were 1,490, 1,646, 1,626, 1,489, 1,688, 1,698, 1,625, and 1,559 ohms.", "verdict": "supported", "evidence": "Section 2.2: 'At the 6-month follow-up, device impedance remained normal, with channel impedances of 1,490 Ω, 1646 Ω, 1626 Ω, 1489 Ω, 1688 Ω, 1698 Ω, 1625 Ω, and 1,559 Ω.'", "note": null}, {"claim": "No adverse events occurred following brain-computer interface implantation, and patient reported high satisfaction.", "verdict": "supported", "evidence": "Section 2.2: 'No adverse events occurred following the brain–computer interface implantation, and the patient reported high satisfaction.'", "note": null}, {"claim": "Patient underwent C3–6 posterior laminectomy, laminoplasty, spinal nerve decompression, posterolateral bone fusion, and pedicle screw fixation from C2 to C7 on January 19, 2023.", "verdict": "supported", "evidence": "Section 2.1: 'On January 19, 2023, he underwent C3–6 posterior laminectomy, laminoplasty, spinal nerve decompression, posterolateral bone fusion with autologous and allogeneic grafts, and pedicle screw fixation from C2 to C7 under general anesthesia.'", "note": null}, {"claim": "Patient was discharged on July 26, 2025, for home-based rehabilitation.", "verdict": "supported", "evidence": "Section 2.2: 'The patient was discharged on July 26, 2025, for home-based rehabilitation.'", "note": null}, {"claim": "Preoperative psychological assessment using Huaxi Emotional-index showed patient scored 11 points, indicating mild negative emotions.", "verdict": "supported", "evidence": "Section 3.1.1: 'The patient scored 11 points, indicating mild negative emotions.'", "note": null}, {"claim": "Cefazolin sodium 1 gram was intravenously infused 0.5–1 hour before surgery, with additional dose at 3 hours after incision, and continued for 4–6 hours postoperatively.", "verdict": "supported", "evidence": "Section 3.2.2: 'Cefazolin sodium (1 g) was intravenously infused 0.5–1 h before surgery, with an additional dose administered 3 h after incision. Antibiotic administration was continued for 4–6 h postoperatively after the patient returned to the ward.'", "note": null}, {"claim": "Patient developed pain with VAS score of 6 points at cranial surgical site in early morning after surgery, relieved to VAS score of 2 points one hour after loxoprofen sodium 60 mg.", "verdict": "supported", "evidence": "Section 3.3.1: 'The patient developed pain at the cranial surgical site in the early morning after surgery, with a Visual Analog Scale (VAS) score of 6 points... 60 mg of loxoprofen sodium tablets were administered orally. The pain was relieved 1 h later, with a VAS score of 2 points.'", "note": null}, {"claim": "Authors acknowledge that long-term electrode functional stability and host tissue biocompatibility necessitate extended follow-up beyond current observation window.", "verdict": "supported", "evidence": "Section 4: 'critical issues pertaining to long-term electrode functional stability and host tissue biocompatibility necessitate extended follow-up beyond the current observation window.'", "note": null}, {"claim": "Authors state that generalizability of perioperative management strategy to SCI patients with varying injury characteristics warrants cautious interpretation due to single-case limitation.", "verdict": "supported", "evidence": "Section 4: 'given the inherent limitations of a single-case report, the generalizability of the perioperative management strategy to SCI patients with varying injury characteristics warrants cautious interpretation.'", "note": null}]}