Medial Deviation of a 6° Prosthetic Trochlear Groove After Kinematically Aligned Total Knee Arthroplasty Occurs in Four Types of Coronal Plane Alignment of the Knee (CPAK) and Decreases the Forgotten Joint Score.

Background: The study focused on kinematically aligned total knee arthroplasty (KA TKA). It identified which coronal plane alignment of the knee (CPAK) types are associated with a higher proportion of medial deviation of the 6° prosthetic trochlear groove (PTG) relative to the quadriceps' line of pull and whether medial deviation adversely affected the Forgotten Joint Score (FJS). The research calculated the minimum PTG angle required to prevent medial deviation by at least 2° in all patients.

Epidemiology and Characteristics of Meniscal Tears in Patients With Combined ACL and Medial Collateral Ligament Injuries Versus Isolated ACL Tears: A Case-Control Study From the Francophone Arthroscopic Society.

Background: The co-occurrence of anterior cruciate ligament (ACL) rupture with medial collateral ligament (MCL) rupture is a compound injury that can be associated with meniscal tears.

Purpose: To report the characteristics of meniscal tears in knees with isolated ACL versus combined ACL and MCL injuries, analyzing their frequency, distribution by site, and lesion type.

Study Design: Cross-sectional study; Level of evidence, 3.

Patient-reported outcome measures following individualised TKA are not affected by the degree of preoperative coronal varus or valgus laxity.

Purpose: To determine whether there is a correlation between preoperative coronal varus or valgus laxity and patient-reported outcome measures (PROMs) 2 years after individualised total knee arthroplasty (TKA).

Methods: Records of 150 consecutive patients who received individualised TKA were retrospectively analysed, and 126 with complete pre- and postoperative data were included. Preoperative coronal varus and valgus stress radiographs (15 N load) were taken using a telos stress device with the knee in 5°-10° of flexion.

Delayed Presentation of a Pseudocyst After Endoscopic Lumbar Discectomy and Its Recurrence in a Professional Biathlon Athlete: A Case Report and Literature Review.

In this case report, we encountered a pseudocyst as a complication of endoscopic lumbar discectomy in a high-level athlete within 3 months, which is atypical according to the literature. The recurrence of this pathology is even rarer, in this case, the patient presented a recurrence of the pseudocyst after resection. This case report outlines a review of the patient's clinical report, imaging, operative procedure, and complications, together with a literature review on pseudocysts after endoscopic lumbar discectomy.

Posterior shoulder instability.

Posterior shoulder instability (PSI) is defined by dynamic, recurrent and symptomatic partial or total loss of posterior joint contact. Anatomic risk factors comprise ligament hyperlaxity, glenoid retroversion or dysplasia, and high horizontal acromial morphology. Associated anatomic lesions comprise labrum lesions, posterior glenoid erosion and/or fracture, and anterior humeral head notching.

"The Chambat Sardine Can" technique for the treatment of chronic quadriceps tendon rupture.

Ruptures of the quadriceps tendon (QT) are rare but serious injuries accounting for less than 2% of all tendon injuries around the knee. These injuries, often occurring in individuals over 40, are leading to a loss of active extension and a significant impact on knee function. While the treatment of acute QT ruptures through various reinsertion techniques has shown excellent outcomes, managing chronic injuries and failed primary repairs remains challenging due to tendon retraction and difficulties in repositioning the tendon stump.

Arthroscopic Anatomic Lateral Ankle Reconstruction Using Allograft: A Simplified Approach.

Ankle instability is a common medical condition that frequently necessitates surgical intervention to achieve ankle joint stability and enhance functional outcomes after failure of conservative treatment. Many surgical techniques have been described in the literature to restore joint stability, including repair or reconstruction of the anterior talofibular ligament and the calcaneofibular ligament. In this article, we describe a simplified arthroscopic technique for anatomic lateral ankle ligament reconstruction using an extensor hallucis longus allograft and involving percutaneous creation of the calcaneal tunnel after identification of the calcaneofibular ligament distal footprint insertion relative to the lateral malleolus.

Pyrocarbon Hemi-Shoulder Arthroplasty Provides Satisfactory Outcomes Following Prior Open Latarjet.

Purpose: To assess the clinical and radiographic outcomes, at a minimum follow-up of 4 years, following HSA using pyrocarbon in patients that had prior open Latarjet.

Methods: The authors retrieved the records of 61 consecutive patients that underwent HSA with a pyrocarbon humeral head at 2 centers between December 2013 and October 2019. Eight patients (9 shoulders) had undergone previous Latarjet procedures without other surgical antecedents.

Survivorship and Outcomes of Meniscal Ramp Lesions Repaired Through a Posteromedial Portal During Anterior Cruciate Ligament Reconstruction: Outcome Study With a Minimum 10-Year Follow-up.

Background: Several studies have demonstrated suture repair of ramp lesions of the medial meniscus via a posteromedial approach was associated with a significantly lower rate of secondary meniscectomy. However, these studies are not long-term and highlight the need for extended follow-up research to better understand the outcomes over a more extended period.

Purpose: To evaluate the long-term results and reoperation rate for the failure of arthroscopic all-inside suture repair of ramp lesions of the medial meniscus via a posteromedial approach during anterior cruciate ligament (ACL) reconstruction.

Isolated humeral distalization in reverse total shoulder arthroplasty: a biorobotic shoulder simulator study.

Background: Humeral distalization is inherent to reverse total shoulder arthroplasty (rTSA) and is often produced with concomitant humeral lateralization via the level of the humeral head cut, implant positioning, implant neck shaft angle, and polymer insert thickness. Biomechanical data on the isolated effects of humeral distalization remain limited but could be important to consider when optimizing postoperative rTSA shoulder function. This study investigated the effects of isolated humeral distalization on shoulder biomechanics using a biorobotic shoulder simulator.

Stress shielding in stemmed reverse shoulder arthroplasty: an updated review.

Background: Reverse shoulder arthroplasty (RSA) is popular for the treatment of degenerative glenohumeral joint disease. Bone remodeling around the humeral stem related to stress shielding (SS) has been described. This review focuses on the specific radiological characteristics, risk factors, and clinical consequences of SS in RSA.

The effect of humeral tray thickness on glenohumeral loads in a reverse shoulder 'smart' implant.

Purpose: The aim of this study was to observe the effects of changing humeral tray thickness on the resultant of intraoperative glenohumeral joint loads using a load-sensing system (LSS).

Methods: An rTSA was performed on fresh frozen full-body cadaver shoulders by using an internal proprietary LSS on the humeral side. The glenohumeral loads (Newtons) and the direction of the resultant force applied on the implant were recorded during four standard positions (External rotation, Extension, Abduction, Flexion) and three "complex" positions of Activity Daily Life ("behind back", "overhead reach" and "across chest").

Optimizing the patellofemoral compartment in total knee arthroplasty: Is it time for dynamic assessment?

Despite improvements in implant design, surgical techniques and assistive technologies for total knee arthroplasty (TKA), anterior knee pain (AKP) remains frequently reported, even by satisfied patients. This persistent problem calls for better understanding and management of the patellofemoral or anterior compartment during surgery, just as the techniques and strategies deployed to optimize the flexion and extension spaces through personalized alignment, bone cuts and ligament balancing. Assistive technologies such as navigation and robotics provide new tools to manage this 'third space' through precise pre-operative planning and dynamic intra-operative assessment.

Validation and reliability of the Simple Achille Value (SAV) in Achilles tendon disorders.

Background: Achilles tendon (AT) disorders significantly impact patient life, necessitating accurate assessment tools. Current methods are often complex and time-consuming. This study aims to validate the Simple Ankle Value (SAV) for AT disorders.

Ankle-GO score is associated with the probability of becoming coper after lateral ankle sprain: a 1-year prospective cohort study.

Objective: To analyse the association between Ankle-GO score during the return to sport process and the probability of becoming a coper 1 year after lateral ankle sprain (LAS). Copers were defined as patients returning to their preinjury sport without loss of function and reporting no episodes of reinjury or giving-way.

Methods: Two months after a LAS, patients performed the Ankle-GO assessment which includes a cluster of four functional tests and two self-reported questionnaires for a maximum score of 25 points.

Percutaneous Calcaneal Osteotomy Combined With Arthroscopic Lateral Ankle Ligament Reconstruction for Chronic Ankle Instability With Hindfoot Varus.

Chronic ankle instability is the most frequent complication of lateral ankle sprain. Its reported incidence is approximately 40% after the first episode of instability. Although this rate varies depending on the type of activity, there are also certain risk factors associated with this condition, such as hyperlaxity, static or dynamic postural control deficits, and especially, hindfoot varus.

Bone-Patellar Tendon-Bone Augmentation With Gracilis Tendon: The Bone-Patellar Tendon-Bone Plus Technique.

The bone-patellar tendon-bone (BPTB) autograft or allograft is a well-established option for primary or revision anterior cruciate ligament (ACL) reconstruction. However, although the length and width of the graft are relatively consistent, its thickness is unpredictable and can impact the biomechanical properties of the ACL graft. This technical note describes a technique for arthroscopic ACL reconstruction called the "BPTB-plus" technique, which consists of a BPTB graft augmented by the gracilis tendon.