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21.09.2018 | KNEE | Ausgabe 2/2019

Knee Surgery, Sports Traumatology, Arthroscopy 2/2019

Tunnel osteolysis post-ACL reconstruction: a systematic review examining select diagnostic modalities, treatment options and rehabilitation protocols

Zeitschrift:
Knee Surgery, Sports Traumatology, Arthroscopy > Ausgabe 2/2019
Autoren:
Ramandeep Bhullar, Anthony Habib, Kailai Zhang, Darren de SA, Nolan S. Horner, Andrew Duong, Nicole Simunovic, João Espregueira-Mendes, Olufemi R. Ayeni
Wichtige Hinweise

Electronic supplementary material

The online version of this article (https://​doi.​org/​10.​1007/​s00167-018-5142-9) contains supplementary material, which is available to authorized users.

Abstract

Purpose

The purpose of this systematic review was to (1) identify the optimal diagnostic modality for tunnel widening in skeletally mature patients; (2) identify potentially modifiable risk factors for tunnel widening, such as graft type, and (3) determine what elements of a post-operative rehabilitation program exert the most influence on TW.

Methods

The electronic databases MEDLINE, EMBASE, PubMed, and Cochrane Library were searched from database inception to January 2018. Studies that discussed tunnel widening following anterior cruciate ligament reconstruction (ACLR) of skeletally mature patients and written in English were included. Descriptive statistics, such as means, ranges, and measures of variance (e.g. standard deviations, 95% confidence intervals (CI)) are presented where applicable.

Results

103 studies (6,383 patients) were included. Plain radiographs were the most commonly used diagnostic modality, but radiographs on average required 10 months longer than CT and 2 months longer on average than MRI to diagnose tunnel widening after ACLR. Although CT was the least commonly used modality, it was the shortest time to diagnose tunnel widening at 9.5 months after ACLR. Bone–patellar tendon–bone (BPTB) allograft had the largest average tunnel widening overall. BPTB autograft had the lowest average tunnel widening overall. Double-bundle hamstring graft configuration had a lower average tunnel widening than single-bundle configuration. Rehabilitation protocols after ACLR that used a full weight-bearing prescription in rehabilitation showed a greater average femoral tunnel widening than partial weight-bearing, and partial weight-bearing showed a greater average tibial tunnel widening than full weight-bearing.

Conclusions

Based on this systematic review and the descriptive data evaluated, CT demonstrated a time of 9.5 months on average from ACLR to diagnosing tunnel osteolysis post-ACLR. With respect to graft types, double-bundle hamstring autografts reported lower average femoral and tibial TW than single-bundle hamstring autografts. BPTB autografts reported the lowest average TW and BPTB allograft the largest average TW of all the grafts. Furthermore, extension-locked bracing had the lowest TW of all the brace protocols. Lastly, several other surgical technical parameters influencing tunnel osteolysis remain to be determined. No definitive recommendations can be made at this time due to the high heterogeneity of data and the lack of comparative studies analysed in this systematic review.

Level of evidence

IV.

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Zusatzmaterial
Supplementary material 1 (DOCX 18 KB)
167_2018_5142_MOESM1_ESM.docx
Supplementary material 2 (DOCX 93 KB)
167_2018_5142_MOESM2_ESM.docx
Supplementary material 3 (DOCX 122 KB)
167_2018_5142_MOESM3_ESM.docx
Literatur
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