Suprascapular nerve injury is increasingly being recognized as an important cause of shoulder dysfunction. The non-specific clinical features of suprascapular nerve injury can make diagnosis difficult. However, it is essential for clinicians to consider it as part of the differential diagnoses in patients with vague pain or sensory disturbances over the posterosuperior part of their shoulder or have unexplained atrophy and weakness of their supraspinatus or infraspinatus muscle. Electrodiagnostic studies are useful in confirming and localising the nerve injury, while MRIs can be employed to determine the cause of nerve injury and assess the integrity of the rotator cuff muscles. Isolated suprascapular nerve injury can be managed with a trial of conservative management for at least 6 months. Subsequently, decompression of the nerve through open or arthroscopic techniques can be considered - both are associated with high rates of pain relief and functional improvement.
VorsterW, LangeCP, BrietRJ, LabuschagneBC, du ToitDF, MullerCJ et al. The sensory branch distribution of the suprascapular nerve: an anatomic study. J Shoulder Elbow Surg. 2008; 17(3): 500-2.
2.
GoskJ, UrbanM, RutowskiR. Entrapment of the suprascapular nerve: anatomy, etiology, diagnosis, treatment. Ortop Traumatol Rehabil. 2007; 9(1): 68-74.
JeroschJ, SaadM, GreigM, FillerT. Suprascapular nerve block as a method of preemptive pain control in shoulder surgery. Knee Surg Sports Traumatol Arthrosc. 2008; 16(6): 602-7.
7.
DemirhanM, ImhoffAB, DebskiRE, PatelPR, FuFH, WooSL. The spinoglenoid ligament and its relationship to the suprascapular nerve. J Shoulder Elbow Surg. 1998; 7(3): 238-43.
8.
ArriazaR, BallesterosJ, Lopez-VidrieroE. Suprascapular neuropathy as a cause of swimmer's shoulder: Results after arthroscopic treatment in 4 patients. Am J Sports Med. 2013; 41(4): 887-93.
9.
AndrewJN, LauraSJ, LeamorK, LindseyEE. Suprascapular neuropathy in collegiate baseball player. Asian J Sports Med. 2013; 4(1): 76-81.
10.
BryanWJ, Wild Jr.JJ. Isolated infraspinatus atrophy. A common cause of posterior shoulder pain and weakness in throwing athletes. Am J Sports Med. 1989; 17(1): 130-1.
11.
CumminsCA, BowenM, AndersonK, MesserT. Suprascapular nerve entrapment at the spinoglenoid notch in a professional baseball pitcher. Am J Sports Med. 1999; 27(6): 810-2.
12.
JacksonDL, FarrageJ, HynninenBC, CabomDN. Suprascapular neuropathy in athletes: case reports. Clin J Sports Med. 1995; 5(2): 134-7.
13.
LajtaiG, WieserK, OfnerM, RaimannG, AitzetmullerG, JostB. Electromyography and nerve conduction velocity for the evaluation of the infraspinatus and suprascapular nerve in professional beach volleyball players. Am J Sports Med. 2012; 40(10): 2303-8.
14.
FerrettiA, CerulloG, RussoG. Suprascapular neuropathy in volleyball players. J Bone Joint Surg Am. 1987; 69(2): 260-3.
RengacharySS, NeffJP, SingerPA, BrackettCE. Suprascapular entrapment neuropathy: A clinical, anatomical, and comparative study. Part 1: Clinical study. Neurosurgery. 1979; 5(4): 441-6.
17.
LeeBC, YegappanM, ThiagarajanP. Suprascapular nerve neuropathy secondary to spinoglenoid notch ganglion cysts: Csase report and review of literature. Ann Acad Med Singapore. 2007; 36(12): 1032-5.
18.
PlancherKD, LukeTA, PetersonRK, YacoubianSV. Posterior shoulder pain: A dynamic study of the spinoglenoid ligament and treatment with arthroscopic release of the scapular tunnel. Arthroscopy. 2007; 23(9): 991-8.
19.
MassiminiDF, SinghA, WellsJH, LiG, WarnerJJ. Suprascapular nerve anatomy during shoulder motion: A cadaveric proof of concept study with implications for neurogenic shoulder pain. J Shoulder Elbow Surg. 2013; 22(4): 463-70.
20.
AlbrittonMJ, GrahamRD, RichardsRS, BasamaniaCJ. An anatomic study of the effects on the suprascapular nerve due to retraction of the supraspinatus muscle after a rotator cuff tear. J Shoulder Elbow Surg. 2003; 12(5): 497-500.
21.
MallonWJ, WilsonRJ, BasamaniaCJ. The association of suprascapular neuropathy with massive rotator cuff tears: A preliminary report. J Shoulder Elbow Surg. 2006; 15(4): 395-8.
22.
VadVB, SouthernD, WarrenRF, AltchekDW, DinesD. Prevalence of peripheral neurologic injuries in rotator cuff tears with atrophy. J Shoulder Elbow Surg. 2003; 12(4): 333-6.
23.
CollinP, TresederT, LadermannA, BenkalfateT, MourtadaR, CourageO et al. Neuropathy of the suprascapular nerve and massive rotator cuff tears: A prospective electromyographic study. J Shoulder Elbow Surg. 2013; [Epub ahead of print].
24.
PolgujM, SibinskiM, GrzegorzewskiA, GrzelakP, MajosA, TopolM. Variation in morphology of suprascapular notch as a factor of suprascapular nerve entrapment. Int Orthop. 2013; [Epub ahead of print].
AbboudJA, SilverbergD, GlaserDL, RamseyML, WilliamsGR. Arthroscopy effectively treats ganglion cysts of the shoulder. Clin Orthop Relat Res. 2006; 444: 129-33.
27.
FehrmanDA, OrwinJF, JenningsRM. Suprascapular nerve entrapment by ganglion cysts: A report of six cases with arthroscopic findings and review of the literature. Arthroscopy. 1995; 11(6): 727-34.
28.
WesterheideKJ, DopirakRM, KarzelRP, SnyderSJ. Suprascapular nerve palsy secondary to spinoglenoid cysts: results of arthroscopic treatment. Arthroscopy. 2006; 22(7): 721-7.
KimSH, KohYG, SungCH, MoonHK, ParkYS. Iatrogenic suprascapular nerve injury after repair of type II SLAP lesion. Arthroscopy. 2010; 26(7): 1005-8.
38.
WangJ, SinghA, HigginsL, WarnerJ. Suprascapular neuropathy secondary to reverse shoulder arthroscopy: A case report. J Shoulder Elbow Surg. 2010; 19(3): e5-8.
39.
SergidesNN, NikolopoulosDD, BoukorosE, PapagiannopoulosG. Arthroscopic decompression of an entrapped suprascapular nerve due to an ossified superior transverse scapular ligament: A case report. Cases J. 2009; 2: 8200.
40.
OizumiN, SuenagaN, FunakoshiT, YamaguchiH, MinamiA. Recovery of sensory disturbance after arthroscopic decompression of the suprascapular nerve. J Shoulder Elbow Surg. 2012; 21(6): 759-64.
RaskMR. Suprascapular axonotmesis and rheumatoid disease: Report of a case treated conservatively. Clin. Orthop Relat Res. 1978; (134): 266-7.
43.
HashimotoBE, HayesAS, AgerJD. Sonographic diagnosis and treatment of ganglion cysts causing suprascapular nerve entrapment. J Ultrasound Med. 1994; 13(9): 671-4.
44.
TakagishiK, MaedaK, IkedaT, ItomanM, YamamotoM. Ganglion causing paralysis of the suprascapular nerve. Diagnosis by MRI and ultrasonography. Acta Orthop Scand. 1991; 62(4): 391-3.
45.
KullmerK, SieversKW, ReimersCD, RompeJD, Muller-FelberW, NageleM et al. Changes of sonographic, magnetic resonance tomographic, electromyographic, and histopathologic findings within a 2-month period of examinations after experimental muscle denervation. Arch Orthop Trauma Surg. 1998; 117(4-5): 228-34.
46.
NardinRA, RutkoveSB, RaynorEM. Diagnostic accuracy of electrodiagnostic testing in the evaluation of weakness. Muscle Nerve. 2002; 26(2): 201-5.
47.
ShiLL, FreehillMT, YanoopoulosP, WarnerJJ. Suprascapular nerve: is it important in cuff pathology?Adv Orthop. 2012; 2012: 516985.
48.
MartinSD, WarrenRF, MartinTL, KennedyK, O'BrienSJ, WickiewiczTL. Suprascapular neuropathy. Results of nonoperative treatment. J Bone Joint Surg Br. 1997; 79(8): 1159-65.
49.
BlackKP, LombardoJA. Suprascapular nerve injuries with isolated paralysis of the infraspinatus. Am J Sports Med. 1990; 18(3): 225-8.
50.
Drez Jr.D. Suprascapular neuropathy in the differential diagnosis of rotator cuff injuries. Am J Sports Med. 1976; 4(2): 43-5.
51.
CallahanJD, ScullyTB, ShapiroSA, WorthRM. Suprascapular nerve entrapment. A series of 27 cases. J Neurosurg. 1991; 74(6): 893-6.
52.
FabreT, PitonC, LeclouerecG, Gervais-DelionF, DurandeauA. Entrapment of the suprascapular nerve. J Bone Joint Surg Br. 1999; 81(3): 414-9.
53.
KimDH, MurovicJA, TielRL, KlineDG. Management and outcomes of 42 surgical suprascapular nerve injuries and entrapments. Neurosurgery. 2005; 57(1): 120-7.
54.
AielloI, SerraG, TrainaGC, TugnoliV. Entrapment of the suprascapular nerve at the spinoglenoid notch. Ann Neurol. 1982; 12(3): 314-6.
55.
FerrettiA, De CarliA, FontanaM. Injury of the suprascapular nerve at the spinoglenoid notch. The natural history of infraspinatus atrophy in volleyball players. Am J Sports Med. 1998; 26(6): 759-63.
56.
LafosseL, TomasiA, CorbettS, BaierG, WillemsK, GobezieR. Arthroscopic release of suprascapular nerve entrapment at the suprascapular notch: technique and preliminary results. Arthroscopy. 2007; 23(1): 34-42.
YoumT, MatthewsPV, El AttracheNS. Treatment of patients with spinoglenoid cysts associated with superior labral tears without cyst aspiration, debridement, or excision. Arthroscopy. 2006; 22(5): 548-52.
59.
CostourosJG, PorramatikulM, LieDT, WarnerJJ. Reversal of suprascapular neuropathy following arthroscopic repair of massive supraspinatus and infraspinatus rotator cuff tears. Arthroscopy. 2007; 23(11): 1152-61.
