Trial reportBMC musculoskeletal disorders2019
Surgical injury and repair of hip external rotators in THA via posterior approach: a three-dimensional MRI-evident quantitative prospective study.
Trial report in BMC musculoskeletal disorders, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 2 of them syntheses that pooled it.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
12 citing papers in PubMed, 2 syntheses or guidelines pooled it.
- The efficacy and safety of direct superior approach (DSA) for total hip arthroplasty: a systematic review and meta-analysis.Journal of orthopaedic surgery and research · 2023Pooled it
- A Systematic Review and Meta-Analysis of the SuperPATH Approach in Hip Arthroplasty.BioMed research international · 2021Pooled it
- Fatty change in rotator cuff muscles following reverse total shoulder arthroplasty: does the humeral component design matter?Journal of shoulder and elbow arthroplasty · 2026Article
- Bony Path Assisted Suturing and Tendon-to-Tendon Suturing Technique for External Rotator Repair After Hip Arthroplasty: A Randomized-Controlled Trial.Indian journal of orthopaedics · 2026Article
- Article
- HIP Surgical Techniques to Enhance Rehabilitation (HIPSTER) : a single-centre, double-blind, parallel three-arm, randomized-controlled, superiority trial.Bone & joint open · 2025Article
- Piriformis-Sparing vs. Conventional Posterior Approach in Total Hip Arthroplasty: A Retrospective Analysis of the Functional Outcomes.Medicina (Kaunas, Lithuania) · 2025Article
- Postoperative muscle atrophy and fatty degeneration with respect to surgical approaches in total hip arthroplasty.Archives of orthopaedic and trauma surgery · 2025Article
- [Advances in study of surgical approaches and MRI evaluation of total hip arthroplasty].Zhongguo xiu fu chong jian wai ke za zhi = Zhongguo xiufu chongjian waike zazhi = Chinese journal of reparative and reconstructive surgery · 2024Review
- Imaging in Hip Arthroplasty Management Part 2: Postoperative Diagnostic Imaging Strategy.Journal of clinical medicine · 2022Review
- Overview of Methods to Quantify Invasiveness of Surgical Approaches in Orthopedic Surgery-A Scoping Review.Frontiers in surgery · 2021Article
- Article
Corrections and comments
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundAs one of the classical total hip arthroplasty (THA) approaches, the posterior approach is widely used. However, there is a lack of in-depth quantitative researches on the surgical-related injury to the hip external rotators. The purpose of this study is to quantificationally analyse the surgical injury of hip external rotators after posterior THA and explore the effect of the muscle repair on the muscle recovery using the MRI three-dimensional reconstruction technique combined with the clinical assessment.
methodsSixty five patients were eligible to receive a unilateral cementless THA via the posterior approach. During operation, the piriformis tendon was reattached but it was not applicable for the internal obturator muscle. We performed three-dimensional MRI reconstruction of bilateral piriformis and internal obturator muscle along with clinical assessment preoperatively, 6, 12 and 52 weeks postoperatively.
resultsBilateral piriformis and internal obturator muscle were homogeneous preoperatively. Compared with the contralateral side, the volume atrophy and fat-muscle ratio of the piriformis on the operated side increased inconspicuously by 1.64%, 0.26% (p = 0.062, p = 0.071) at 6 weeks and 1.33%, 0.20% (p = 0.057, p = 0.058) at 12 weeks, while 7.28%, 2.09% and 15.71%, 5.14% for the internal obturator muscle (p < 0.01). Up to 52 weeks, the pirformis also showed significant muscle atrophy as well as fatty infiltration (increased by 7.79%, 4.21%; p < 0.01), and 24.18%, 11.91% for the internal obturator muscle (p < 0.01).
conclusionThe THA via posterior approach significantly harms the hip external rotators and the early hip external rotation function. The effective repair could be conducive to the early postoperative recovery of the hip external rotators. TRAIL REGISTRATION: The study has been registered in Chinese Clinical Trial Registry (ChiCTR) before the clical trial started, the Clinical Trial Registry Number is ChiCTR-IOR-17013007 . Registered 17 October 2017. The Trial registration is prospective registration.
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