Donor Site Morbidities of Iliac Crest Bone Graft in Craniofacial Surgery
Why this work is in the frame
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Bibliographic record
Abstract
BACKGROUND: The iliac crest bone graft (ICBG) is criticized for high donor site morbidity. Recent research suggests this morbidity is related to the patient population for which the ICBG is harvested. This systematic review is the first to delineate the type and incidence of ICBG donor site complications in craniofacial surgery. METHODS: Two independent reviewers conducted a systematic review of multiple databases (MEDLINE, EMBASE, CINAHL, PEDRO, and Cochrane Central Register of Controlled Trials) from 1917 to 2017. All studies utilizing the ICBG for craniofacial indications were included. Donor site morbidities, including immediate and chronic pain, hematoma, seroma, infection, hypertrophic/painful scarring, nerve injury, muscle herniation, iliac crest fracture, and gait disturbance, were recorded. A weighted incidence for each morbidity, excluding immediate pain, was calculated. An average visual analog scale score was calculated for immediate pain. RESULTS: Forty-four studies, with 2801 patients, were included. Oral and maxillofacial (50%) and cleft reconstruction (40%) were the primary indications for surgery. Average immediate pain visual analog scale scores on postoperative days 1 and 14 were 6.3 and 1.3, respectively. The incidence of donor site morbidities was as follows: acute (45.7%) and chronic (1.5%) gait disturbance, acute (17.8%) and chronic nerve changes (1.4%), hypertrophic/painful scar (9.1%), chronic pain (3.1%), hematoma (2.2%), seroma (2.0%), infection (1.0%), iliac crest fracture (1.2%), and muscle herniation (0%). CONCLUSIONS: Chronic morbidity was lower than previously documented. Rare chronic morbidity illustrates that the ICBG remains a viable surgical option. The authors hope this review will facilitate surgical planning and informed consent.
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.002 | 0.005 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.007 | 0.004 |
| Bibliometrics | 0.002 | 0.001 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.001 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it