Selman Farah, Kriechling Philipp, Ernstbrunner Lukas, Wieser Karl, Borbas Paul
Department of Orthopaedic Surgery, Balgrist University Hospital, University of Zurich, 8008 Zurich, Switzerland.
Department of Orthopaedic Surgery, Royal Melbourne Hospital, Parkville, VIC 3050, Australia.
J Clin Med. 2023 Feb 1;12(3):1153. doi: 10.3390/jcm12031153.
Periprosthetic fractures, such as acromial and spine fractures, are known complications following implantation of reverse shoulder arthroplasty (RTSA). The entity of greater tuberosity fractures (GTF) has rarely been studied in the literature. The purpose of this study was to analyze the outcome of postoperative greater tuberosity fractures after RTSA compared to a matched control group. The main findings of this study are that a GTF after RTSA is associated with worse clinical outcome scores (mean absolute CS 50 ± 19 ( = 0.032); SSV 63% ± 26 ( = 0.022); mean force 1 kg ± 2 kg ( = 0.044)) compared with the control group (mean absolute CS 62 ± 21; SSV 77% ± 29; mean force 2 kg ± 2 kg). In terms of postoperative range of motion, the fracture group was significantly worse in terms of external rotation (17° ± 19° vs. 30° ± 19° ( = 0.029)). Internal rotation, flexion, as well as abduction of the shoulder appear to be unaffected (internal rotation GTF 4 ± 2, control group 5 ± 3 ( = 0.138); flexion GTF 102° ± 28°, control group 114° ± 27° ( = 0.160); abduction GTF 109° ± 42°, control group 120° ± 39° ( = 0.317)).
假体周围骨折，如肩峰和肩胛盂骨折，是反肩关节置换术（RTSA）植入后的已知并发症。大结节骨折（GTF）这一情况在文献中很少被研究。本研究的目的是分析RTSA术后大结节骨折与匹配对照组相比的结果。本研究的主要发现是，与对照组（平均绝对CS 62±21；SSV 77%±29；平均力量2 kg±2 kg）相比，RTSA术后的GTF与更差的临床结果评分相关（平均绝对CS 50±19（P = 0.032）；SSV 63%±26（P = 0.022）；平均力量1 kg±2 kg（P = 0.044））。在术后活动范围方面，骨折组在外旋方面明显更差（17°±19°对30°±19°（P = 0.029））。肩部的内旋、屈曲以及外展似乎未受影响（内旋GTF组4±2，对照组5±3（P = 0.138）；屈曲GTF组102°±28°，对照组114°±27°（P = 0.160）；外展GTF组109°±42°，对照组120°±39°（P = 0.317））。
