Sports Medicine and Arthroscopy Review最新文献

The menisci play a vital role in maintaining knee function and protecting the chondral surfaces. Acute and chronic tears are common injuries among both young athletes and older patients with early degenerative changes. The progression of physiological derangement and chondral injury after meniscus injury and meniscectomy have prompted interest in expanding meniscus repair techniques. Recent literature encourages an attempt at repair in tear patterns previously declared irreparable if the tissue quality allows. The orthopedic surgeon should understand the multitude of techniques available to them and be prepared to combine techniques to optimize the quality of their repair construct. While biological augmentation may show some promising early results, the quality of the current data precludes strong recommendations in their favor.

Meniscal tears may be managed through conservative physical therapy and nonsteroidal anti-inflammatory medications or operative intervention. Meniscal repair is superior to partial meniscectomy with better functional outcomes and less severe degenerative changes over time. Surgical advances in operative techniques, modern instrumentation and biological enhancements collectively improve healing rates of meniscal repair. However, failed repair is not without consequences and can negative impact patient outcomes. Therefore, it is imperative for surgeons to have a thorough understanding of the vascular zones and biomechanical classifications of meniscal tears in order to best determine the most appropriate treatment.

The meniscus has an important role in stabilizing the knee joint and protecting the articular cartilage from shear forces. Meniscus tears are common injuries and can disrupt these protective properties, leading to an increased risk of articular cartilage damage and eventual osteoarthritis. Certain tear patterns are often treated with arthroscopic partial meniscectomy, which can effectively relieve symptoms. However, removal of meniscal tissue can also diminish the ability of the meniscus to dissipate hoop stresses, resulting in altered biomechanics of the knee joint including increased contact pressures. This makes meniscal repair an important treatment consideration whenever possible. Understanding the incidence and mechanism of osteoarthritis development after arthroscopic partial meniscectomy as it relates to different tear morphologies and other treatment alternatives (ie, meniscus repair) is important to appropriately treat meniscus tears.

The importance of the menisci in providing joint stability and their role in load transmission within the knee are well understood. A growing body of literature has emerged on 2 distinct injury patterns to these crucial anatomic structures, ramp lesions and root tears. Ramp lesions may be characterized as tears at the posterior meniscocapsular junction, while root tears involve bony or soft tissue avulsion of the meniscal insertions at the anterior or posterior intercondylar regions. In this 2-part review, we present an overview of the current available literature on ramp lesions and meniscal root tears, summarizing the unique anatomic considerations, etiology, biomechanics, management decisions, clinical outcomes pertinent to these very distinct injuries.

Meniscal allograft transplantation provides treatment options for patients with a meniscus-deficient knee with lifestyle-limiting symptoms in the absence of advanced degenerative changes. Meniscal transplantation helps to restore the native biomechanics of the involved knee, which may provide chondroprotective effects and restoring additional knee stability. Improvements in pain, function, and activity level have been seen in appropriately selected patients undergoing transplantation. Although various surgical implantation options exist, the majority focus on reproducing native attachments of the meniscal roots to allow near normal mechanics. Although meniscal transplantation may serve as a salvage procedure for symptomatic patients with a meniscus-deficient knee, it may prevent or delay the necessity of a more invasive arthroplasty procedure.

Background: Multiligamentous knee injuries (MLKIs) are rare, and heterogeneous in presentation and treatment options. Consequently, optimal postoperative rehabilitation of MLKI remains unclear.

Objective: To summarize the latest evidence for postoperative rehabilitation protocols following multiligamentous knee reconstruction (MLKR).

Patients and methods: A multidatabase search was conducted with the aid of a health sciences librarian. Blinded reviewers conducted multiple screenings of studies evaluating postoperative rehabilitation protocols following MLKR. All included studies were then graded based on level of evidence, and data concerning patient demographics and rehabilitation protocols were extracted.

Results: MLKR rehabilitation protocols differ widely in terms of weightbearing, bracing, initiation, and types of physical therapy, yet several established protocols were referenced frequently throughout the literature. Such protocols resulted in good outcomes, with patients returning to running in 6 to 12 months and returning to sport in 8 to 12 months.

Conclusion: The rare nature of MLKI hinders the ability to create a standardized rehabilitation protocol. However, early postoperative physical therapy and range of motion consistently lead to improved outcomes. Randomized studies are needed to determine optimal postoperative rehabilitation following MLKR.

The incidence of ulnar collateral ligament injuries has increased over the past few decades with greater participation in overhead throwing sports; however, optimal postoperative management following surgery remains unclear. This systematic review summarizes the latest evidence, on postoperative rehabilitation protocols for patients undergoing ulnar collateral ligament reconstruction (UCLR). Studies published in the English language from the year 2000 to 2019 with a level 1 to 4 grade of evidence and examined rehabilitation protocols following UCLR were eligible for inclusion. A multidatabase search was conducted. Two blinded reviewers screened and graded articles for inclusion and a third independent reviewer resolved any conflicts. Ten of the original 139 studies identified were used for analysis. Surgical techniques as well as rehabilitation protocols varied across studies. Analysis gave strong evidence that a 4-phase postoperative rehabilitation protocol utilizing milestone-based goals is effective in returning athletes back to preinjury levels of activity and sport within 1 year following UCLR.

Rotator cuff tears are the most common cause of shoulder disability and can cause significant pain and dysfunction. This systematic review summarizes the latest research on rehabilitation following arthroscopic rotator cuff repair. Studies were eligible for inclusion if they pertained to postoperative rehabilitation following arthroscopic rotator cuff repair and were published between 2003 and 2019 with a level of evidence of 1 or 2. Two blinded reviewers screened, graded, and extracted data from articles and recommendations on various aspects of rehabilitation were summarized. A total of 4067 articles were retrieved from the database search and 22 studies were included for data extraction. We noted similar outcomes between early and delayed mobilization following surgery. Reviewed articles support the use of supervised physical therapy, bracing in 15 degrees external rotation, and adjunctive transcutaneous electrical nerve stimulation for pain management. Early isometric loading improved outcomes in 1 study. Evidence is lacking for exercise prescription parameters and postoperative rehabilitation of the subscapularis.