Limited hip flexion and internal rotation resulting from early hip impingement conflict on anterior metaphysis of Patients with untreated Severe SCFE using 3D modelling (Record no. 1002)
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| 042 ## - AUTHENTICATION CODE | |
|---|---|
| Authentication code | dc |
| 100 10 - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Lerch, Till D. |
| Relator term | author |
| 9 (RLIN) | 3098 |
| 245 00 - TITLE STATEMENT | |
| Title | Limited hip flexion and internal rotation resulting from early hip impingement conflict on anterior metaphysis of Patients with untreated Severe SCFE using 3D modelling |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. | |
| Date of publication, distribution, etc. | 2022-11-01. |
| 500 ## - GENERAL NOTE | |
| General note | /pmc/articles/PMC7614193/ |
| 500 ## - GENERAL NOTE | |
| General note | /pubmed/36099440 |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | INTRODUCTION: SCFE is the most common hip disorder in adolescent patients that can result in complex 3D-deformity and hip preservation surgery (e.g. in-situ-pinning or proximal femoral osteotomy) is often performed. But there is little information about location of impingement. Purpose/Questions The purpose of this study was to evaluate(1) impingement-free hip flexion and internal rotation(IR), (2)frequency of impingement in early flexion(30°-60°) and (3)location of acetabular and femoral impingement in IR in 90° of flexion(IRF-90°) and in maximal flexion for patients with untreated severe SCFE using preoperative 3D-CT for impingement-simulation. PATIENTS AND METHODS: A retrospective study involving 3D-CT scans of 18 patients(21 hips) with untreated severe SCFE(slip-angle>60°) was performed. Preoperative CT scans were used for bone segmentation of preoperative patient-specific 3D-models. Three patients(15%) had bilateral SCFE. Mean age was 13±2(10-16) years and 67% were male patients (86% unstable slip, 81% chronic slip). The contralateral hips of 15 patients with unilateral SCFE were evaluated(control group). Validated software was used for 3D impingement-simulation (equidistant-method). RESULTS: (1)Impingement-free flexion(46±32°) and IRF-90°(-17±18°) were significantly(p<0.001) decreased in untreated severe SCFE patients compared to contralateral side(122±9° and 36±11°). (2)Frequency of impingement was significantly(p<0.001) higher in 30° and 60° flexion (48% and 71%) of patients with severe SCFE compared to control group(0%). (3)Acetabular impingement conflict was located anterior-superior(SCFE patients), mostly 12 o'clock (50%) in IRF-90° (70% on 2 o'clock for maximal flexion). Femoral impingement was located on anterior-superior to anterior-inferior femoral metaphysis(between 2-6 o'clock, 40% on 3 o'clock and 40% on 5 o'clock) in IRF-90° and on anterior metaphysis(40% on 3 o'clock) in maximal flexion and frequency was significantly(p<0.001) different compared to control group. CONCLUSION: Severe SCFE patients have limited hip flexion and IR due to early hip impingement using patient-specific preoperative 3D-models. Due to the large variety of hip motion, individual evaluation is recommended to plan the osseous correction for severe SCFE patients. |
| 540 ## - TERMS GOVERNING USE AND REPRODUCTION NOTE | |
| Terms governing use and reproduction | |
| 546 ## - LANGUAGE NOTE | |
| Language note | en |
| 690 ## - LOCAL SUBJECT ADDED ENTRY--TOPICAL TERM (OCLC, RLIN) | |
| Topical term or geographic name as entry element | Article |
| 655 7# - INDEX TERM--GENRE/FORM | |
| Genre/form data or focus term | Text |
| Source of term | local |
| 700 10 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Kim, Young-Jo |
| Relator term | author |
| 9 (RLIN) | 3099 |
| 700 10 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Kiapour, Ata |
| Relator term | author |
| 9 (RLIN) | 3100 |
| 700 10 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Zwingelstein, Sébastien |
| Relator term | author |
| 9 (RLIN) | 3101 |
| 700 10 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Steppacher, Simon D. |
| Relator term | author |
| 9 (RLIN) | 3102 |
| 700 10 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Tannast, Moritz |
| Relator term | author |
| 9 (RLIN) | 3103 |
| 700 10 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Siebenrock, Klaus A. |
| Relator term | author |
| 9 (RLIN) | 3104 |
| 700 10 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Novais, Eduardo N. |
| Relator term | author |
| 9 (RLIN) | 3105 |
| 786 0# - DATA SOURCE ENTRY | |
| Note | J Pediatr Orthop |
| 856 41 - ELECTRONIC LOCATION AND ACCESS | |
| Uniform Resource Identifier | <a href="http://dx.doi.org/10.1097/BPO.0000000000002249">http://dx.doi.org/10.1097/BPO.0000000000002249</a> |
| Public note | Connect to this object online. |
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