[2025-10-02T08:39:47.609045] [QUERYOME] Starting research for query 2402: 'Instructions:
 Answer the question below. First, respond with the single best option letter (A, B, C, or D). Then provide a concise reasoning (1–3 sentences). Use both the retrieved evidence and your own medical knowledge to choose the most accurate answer.

Question:
Which of the following increases callus formation:

Options:
A. Rigid immobilization
B. Movement at fracture site
C. Compression plating
D. Intraosseous nailing'
[2025-10-02T08:39:47.651422] [PI] Starting research for query: 'Instructions:
 Answer the question below. First, respond with the single best option letter (A, B, C, or D). Then provide a concise reasoning (1–3 sentences). Use both the retrieved evidence and your own medical knowledge to choose the most accurate answer.

Question:
Which of the following increases callus formation:

Options:
A. Rigid immobilization
B. Movement at fracture site
C. Compression plating
D. Intraosseous nailing'
[2025-10-02T08:39:47.653345] Saving text to bench_final/run1/medmcqa/medmcqa_3962/pi_initial_prompt.txt
[2025-10-02T08:39:47.658373] [PI] Calling o3 for initial analysis...
[2025-10-02T08:39:59.551569] [PI] Reasoning iteration 1
[2025-10-02T08:39:59.553282] [PI reasoning] **Evaluating callus formation factors**

For the MCQ about factors that increase callus formation, it's clear that orthopedic healing relies on micro-movement rather than rigid fixation. Rigid immobilization leads to less callus formation, but some movement at the fracture site is actually beneficial. However, too much movement can delay healing instead. I believe intra-medullary nailing promotes callus formation compared to compression plating, which supports primary healing. Thus, I think the answer could be D – intraosseous nailing.
[2025-10-02T08:39:59.556073] [PI] Executing function call 1: hybrid_search
[2025-10-02T08:39:59.557713] [PI] Function arguments: {'query': 'movement at fracture site increases callus formation vs rigid fixation callus size intramedullary nail indirect healing callus abundance', 'k': 10, 'faiss_weight': 0.6, 'bm25_weight': 0.4, 'use_rrf': True}
[2025-10-02T08:39:59.559362] Saving JSON to bench_final/run1/medmcqa/medmcqa_3962/pi_iteration_1_tool_call_2_hybrid_search.json
[2025-10-02T08:40:01.124774] [PI] Function hybrid_search executed successfully
[2025-10-02T08:40:01.127652] Saving JSON to bench_final/run1/medmcqa/medmcqa_3962/pi_iteration_1_tool_result_2_hybrid_search.json
[2025-10-02T08:40:01.134183] [PI] Continuing reasoning with 1 function responses...
[2025-10-02T08:40:11.073911] [PI] Reasoning iteration 2
[2025-10-02T08:40:11.076486] [PI reasoning] **Analyzing bone healing factors**

I'm looking into how mechanical principles affect bone healing. I know that primary bone healing occurs with rigid fixation, while intramedullary nailing leads to indirect healing with callus formation. Movement at the fracture site seems to promote callus, but too much can delay healing. I wonder about factors that affect callus formation, such as movement, blood supply, and fragment separation. Local factors appear important, so I’ll check textbooks for clarity on how movement influences healing.
[2025-10-02T08:40:11.078403] [PI] Executing function call 1: hybrid_search
[2025-10-02T08:40:11.081452] [PI] Function arguments: {'query': 'which increases callus formation movement at fracture site rigid immobilization compression plating intramedullary nailing exam question', 'k': 10, 'faiss_weight': 0.5, 'bm25_weight': 0.5, 'use_rrf': True}
[2025-10-02T08:40:11.083035] Saving JSON to bench_final/run1/medmcqa/medmcqa_3962/pi_iteration_2_tool_call_2_hybrid_search.json
[2025-10-02T08:40:12.998113] [PI] Function hybrid_search executed successfully
[2025-10-02T08:40:13.008457] Saving JSON to bench_final/run1/medmcqa/medmcqa_3962/pi_iteration_2_tool_result_2_hybrid_search.json
[2025-10-02T08:40:13.017553] [PI] Continuing reasoning with 1 function responses...
[2025-10-02T08:40:33.634222] [PI] Reasoning iteration 3
[2025-10-02T08:40:33.637132] [PI reasoning] **Evaluating callus formation methods**

I’m examining evidence regarding how different methods affect callus formation at fracture sites. Goodship (1998) suggests micro-movement influences callus, while Wolf (2000) states limited movement promotes callus and stability. I need to choose the best option: A) Rigid immobilization leads to primary healing and less callus, B) Movement promotes more callus, C) Compression plating results in minimal callus, and D) Intraosseous nailing causes some callus but offers stability. I’ll need to look for more details comparing these methods.
[2025-10-02T08:40:33.639062] [PI] No function calls found in response
[2025-10-02T08:40:33.642540] [PI] No more function calls - research complete
[2025-10-02T08:40:33.643881] Saving text to bench_final/run1/medmcqa/medmcqa_3962/pi_final_answer.txt
[2025-10-02T08:40:33.648865] [QUERYOME] Query completed successfully
