الفهرس 
IntroductionOnly 14 pages are availabe for public view
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Abstract
T
he menisci are known to be vital for the normal functioning and longevity of the knee joint, its primary function is to transmit load across the tibiofemoral joint by increasing congruency, thereby decreasing the resultant stress placed on the articular cartilage.
The menisci also play a secondary role in shock absorption, stability, lubrication, nutrition, and proprioception to the knee joint.
Meniscal Injuries are recognized as a cause of significant musculoskeletal morbidity, as a consequence of its complex anatomical, biomechanical, and functional characteristics, the menisci are prone to damage and injury, particularly in contact-sport activities.
Our study aimed to conduct a systematic review demonstrating the clinical and MRI outcomes when using arthroscopic repair versus menisectomy in radial meniscal tears.
An initial search of PubMed, Embase, and Scopus databases from 2005 - 2021 with key words : meniscus, Meniscus tear, radial tear, menisectomy and meniscus repair yielded a total of 1170 articles, Then after screening Full-text analysis against the inclusion and exclusion criteria resulted in 11 studies on radial meniscus tear being suitable for inclusion criteria according to the illustrated PRISMA (Fig - 21).
This systematic review compares between the two treatment techniques (arthroscopic repair and arthroscopic menisectomy) regarding clinical and radiological outcomes in patients with radial meniscus tear.
Inclusion criteria:
Type of studies: Randomized control trials (RCT), Cohort studies, case control studies and any studies with level evidence 1-4
Type of subjects: particular with radial meniscal injury of any gender and age under 50y.
Type of surgery: arthroscopic repair and arthroscopic menisectomy.
Duration of follow up: equal or more than one year.
English literature only.
Orthopaedic journal articles between 1/1/2005-31/12/2021 describing radial tear management either repair or menisectomy
Human studies.
Exclusion criteria:
Irrelevance to study questions and radial root tears
Non clinical.
Case report.
Systematic reviews and meta-analysis studies.
Surgical techniques articles without reported outcomes.
Duplicated articles by the same author unless with longer follow up studies.
Biomechanical studies.
Cadaveric studies.
Conference abstract.
Regarding the Studies characteristics among the studied patients, we found that 11 studies were included 8 articles radial tear repair and 3 comparative between repair and menisectomy, total cases were 235 with pre and postoperative diagnosis by clinical, MRI and arthroscopy.
Regarding the Patient characteristics among the studied patients, we found that 235 participants in the 11 literatures included 180 arthroscopic repair and 55 menisectomy, they were 160 males (67.7%) and 75 females (32.3%). Males were much more dominant than females. The disease affects middle aged patients with mean ages of 30.25 ± 9.98 years.
Regarding the Patient reported outcomes among the studied patients, we found that
Mean Tegner activity score improved from 2.95 ± 0.07 to 5.05 ± 0.07 in menisectomy and improved from 2.81 ± 1.01 to 5.93 ± 0.93 in arthroscopic repair post operation As regard these scores, comparison between the two treatment groups was statistically insignificant preoperatively, while postoperatively, repair group showed increase in Tegner score compared to meniscectomy group with statistically significant difference (p = 0.041).
Mean IKDC score improved from 55.8 ± 17.2 to 87.17 ± 8.78 in menisectomy, and improved from 50.66 ± 12.5 to 89.24 ± 5.74 in arthroscopic repair post operation as regard these scores, comparison between the two treatment groups was statistically insignificant preoperatively and postoperatively. Intergroup study of both groups showed statistically highly significant difference between pre- and post-operative scores (p <0.01).
Mean lysholm score improved from 62.05 ± 9.55 to 92.48 ± 3.80 in arthroscopic repair as regard these scores there is a statistically significant difference between preoperative and postoperative values (p =0.017).
Regarding the Healing Rates among the studied patients, we found that after evaluation methods by MRI or second-look arthroscopy, Both treatment modalities had comparable results in complete healing (p >0.05), while partial healing and failure rates were statistically higher in meniscectomy group than arthroscopic repair group (p = 0.39 and 0.031), respectively.
Short- and long-term follow-up revealed that sparing the meniscus either by repair or partial meniscectomy in radial tears has excellent outcomes in terms of healing, activity level, and return to sports.